106 files changed, 64 insertions, 43872 deletions

diff --git a/crypto/telnet/arpa/telnet.h b/crypto/telnet/arpa/telnet.h
deleted file mode 100644
index c937f03eacde..000000000000
--- a/crypto/telnet/arpa/telnet.h
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * Copyright (c) 1983, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)telnet.h	8.2 (Berkeley) 12/15/93
- * $FreeBSD$
- */
-
-#ifndef _ARPA_TELNET_H_
-#define	_ARPA_TELNET_H_
-
-/*
- * Definitions for the TELNET protocol.
- */
-#define	IAC	255		/* interpret as command: */
-#define	DONT	254		/* you are not to use option */
-#define	DO	253		/* please, you use option */
-#define	WONT	252		/* I won't use option */
-#define	WILL	251		/* I will use option */
-#define	SB	250		/* interpret as subnegotiation */
-#define	GA	249		/* you may reverse the line */
-#define	EL	248		/* erase the current line */
-#define	EC	247		/* erase the current character */
-#define	AYT	246		/* are you there */
-#define	AO	245		/* abort output--but let prog finish */
-#define	IP	244		/* interrupt process--permanently */
-#define	BREAK	243		/* break */
-#define	DM	242		/* data mark--for connect. cleaning */
-#define	NOP	241		/* nop */
-#define	SE	240		/* end sub negotiation */
-#define EOR     239             /* end of record (transparent mode) */
-#define	ABORT	238		/* Abort process */
-#define	SUSP	237		/* Suspend process */
-#define	xEOF	236		/* End of file: EOF is already used... */
-
-#define SYNCH	242		/* for telfunc calls */
-
-#ifdef TELCMDS
-const char *telcmds[] = {
-	"EOF", "SUSP", "ABORT", "EOR",
-	"SE", "NOP", "DMARK", "BRK", "IP", "AO", "AYT", "EC",
-	"EL", "GA", "SB", "WILL", "WONT", "DO", "DONT", "IAC",
-	0
-};
-#else
-extern char *telcmds[];
-#endif
-
-#define	TELCMD_FIRST	xEOF
-#define	TELCMD_LAST	IAC
-#define	TELCMD_OK(x)	((unsigned int)(x) <= TELCMD_LAST && \
-			 (unsigned int)(x) >= TELCMD_FIRST)
-#define	TELCMD(x)	telcmds[(x)-TELCMD_FIRST]
-
-/* telnet options */
-#define TELOPT_BINARY	0	/* 8-bit data path */
-#define TELOPT_ECHO	1	/* echo */
-#define	TELOPT_RCP	2	/* prepare to reconnect */
-#define	TELOPT_SGA	3	/* suppress go ahead */
-#define	TELOPT_NAMS	4	/* approximate message size */
-#define	TELOPT_STATUS	5	/* give status */
-#define	TELOPT_TM	6	/* timing mark */
-#define	TELOPT_RCTE	7	/* remote controlled transmission and echo */
-#define TELOPT_NAOL 	8	/* negotiate about output line width */
-#define TELOPT_NAOP 	9	/* negotiate about output page size */
-#define TELOPT_NAOCRD	10	/* negotiate about CR disposition */
-#define TELOPT_NAOHTS	11	/* negotiate about horizontal tabstops */
-#define TELOPT_NAOHTD	12	/* negotiate about horizontal tab disposition */
-#define TELOPT_NAOFFD	13	/* negotiate about formfeed disposition */
-#define TELOPT_NAOVTS	14	/* negotiate about vertical tab stops */
-#define TELOPT_NAOVTD	15	/* negotiate about vertical tab disposition */
-#define TELOPT_NAOLFD	16	/* negotiate about output LF disposition */
-#define TELOPT_XASCII	17	/* extended ascic character set */
-#define	TELOPT_LOGOUT	18	/* force logout */
-#define	TELOPT_BM	19	/* byte macro */
-#define	TELOPT_DET	20	/* data entry terminal */
-#define	TELOPT_SUPDUP	21	/* supdup protocol */
-#define	TELOPT_SUPDUPOUTPUT 22	/* supdup output */
-#define	TELOPT_SNDLOC	23	/* send location */
-#define	TELOPT_TTYPE	24	/* terminal type */
-#define	TELOPT_EOR	25	/* end or record */
-#define	TELOPT_TUID	26	/* TACACS user identification */
-#define	TELOPT_OUTMRK	27	/* output marking */
-#define	TELOPT_TTYLOC	28	/* terminal location number */
-#define	TELOPT_3270REGIME 29	/* 3270 regime */
-#define	TELOPT_X3PAD	30	/* X.3 PAD */
-#define	TELOPT_NAWS	31	/* window size */
-#define	TELOPT_TSPEED	32	/* terminal speed */
-#define	TELOPT_LFLOW	33	/* remote flow control */
-#define TELOPT_LINEMODE	34	/* Linemode option */
-#define TELOPT_XDISPLOC	35	/* X Display Location */
-#define TELOPT_OLD_ENVIRON 36	/* Old - Environment variables */
-#define	TELOPT_AUTHENTICATION 37/* Authenticate */
-#define	TELOPT_ENCRYPT	38	/* Encryption option */
-#define TELOPT_NEW_ENVIRON 39	/* New - Environment variables */
-#define	TELOPT_TN3270E	40	/* RFC2355 - TN3270 Enhancements */
-#define	TELOPT_CHARSET	42	/* RFC2066 - Charset */
-#define	TELOPT_COMPORT	44	/* RFC2217 - Com Port Control */
-#define	TELOPT_KERMIT	47	/* RFC2840 - Kermit */
-#define	TELOPT_EXOPL	255	/* extended-options-list */
-
-
-#define	NTELOPTS	(1+TELOPT_KERMIT)
-#ifdef TELOPTS
-const char *telopts[NTELOPTS+1] = {
-	"BINARY", "ECHO", "RCP", "SUPPRESS GO AHEAD", "NAME",
-	"STATUS", "TIMING MARK", "RCTE", "NAOL", "NAOP",
-	"NAOCRD", "NAOHTS", "NAOHTD", "NAOFFD", "NAOVTS",
-	"NAOVTD", "NAOLFD", "EXTEND ASCII", "LOGOUT", "BYTE MACRO",
-	"DATA ENTRY TERMINAL", "SUPDUP", "SUPDUP OUTPUT",
-	"SEND LOCATION", "TERMINAL TYPE", "END OF RECORD",
-	"TACACS UID", "OUTPUT MARKING", "TTYLOC",
-	"3270 REGIME", "X.3 PAD", "NAWS", "TSPEED", "LFLOW",
-	"LINEMODE", "XDISPLOC", "OLD-ENVIRON", "AUTHENTICATION",
-	"ENCRYPT", "NEW-ENVIRON", "TN3270E", "CHARSET", "COM-PORT",
-	"KERMIT",
-	0
-};
-#define	TELOPT_FIRST	TELOPT_BINARY
-#define	TELOPT_LAST	TELOPT_KERMIT
-#define	TELOPT_OK(x)	((unsigned int)(x) <= TELOPT_LAST)
-#define	TELOPT(x)	telopts[(x)-TELOPT_FIRST]
-#endif
-
-/* sub-option qualifiers */
-#define	TELQUAL_IS	0	/* option is... */
-#define	TELQUAL_SEND	1	/* send option */
-#define	TELQUAL_INFO	2	/* ENVIRON: informational version of IS */
-#define	TELQUAL_REPLY	2	/* AUTHENTICATION: client version of IS */
-#define	TELQUAL_NAME	3	/* AUTHENTICATION: client version of IS */
-
-#define	LFLOW_OFF		0	/* Disable remote flow control */
-#define	LFLOW_ON		1	/* Enable remote flow control */
-#define	LFLOW_RESTART_ANY	2	/* Restart output on any char */
-#define	LFLOW_RESTART_XON	3	/* Restart output only on XON */
-
-/*
- * LINEMODE suboptions
- */
-
-#define	LM_MODE		1
-#define	LM_FORWARDMASK	2
-#define	LM_SLC		3
-
-#define	MODE_EDIT	0x01
-#define	MODE_TRAPSIG	0x02
-#define	MODE_ACK	0x04
-#define MODE_SOFT_TAB	0x08
-#define MODE_LIT_ECHO	0x10
-
-#define	MODE_MASK	0x1f
-
-/* Not part of protocol, but needed to simplify things... */
-#define MODE_FLOW		0x0100
-#define MODE_ECHO		0x0200
-#define MODE_INBIN		0x0400
-#define MODE_OUTBIN		0x0800
-#define MODE_FORCE		0x1000
-
-#define	SLC_SYNCH	1
-#define	SLC_BRK		2
-#define	SLC_IP		3
-#define	SLC_AO		4
-#define	SLC_AYT		5
-#define	SLC_EOR		6
-#define	SLC_ABORT	7
-#define	SLC_EOF		8
-#define	SLC_SUSP	9
-#define	SLC_EC		10
-#define	SLC_EL		11
-#define	SLC_EW		12
-#define	SLC_RP		13
-#define	SLC_LNEXT	14
-#define	SLC_XON		15
-#define	SLC_XOFF	16
-#define	SLC_FORW1	17
-#define	SLC_FORW2	18
-#define SLC_MCL         19
-#define SLC_MCR         20
-#define SLC_MCWL        21
-#define SLC_MCWR        22
-#define SLC_MCBOL       23
-#define SLC_MCEOL       24
-#define SLC_INSRT       25
-#define SLC_OVER        26
-#define SLC_ECR         27
-#define SLC_EWR         28
-#define SLC_EBOL        29
-#define SLC_EEOL        30
-
-#define	NSLC		30
-
-/*
- * For backwards compatibility, we define SLC_NAMES to be the
- * list of names if SLC_NAMES is not defined.
- */
-#define	SLC_NAMELIST	"0", "SYNCH", "BRK", "IP", "AO", "AYT", "EOR",	\
-			"ABORT", "EOF", "SUSP", "EC", "EL", "EW", "RP",	\
-			"LNEXT", "XON", "XOFF", "FORW1", "FORW2",	\
-			"MCL", "MCR", "MCWL", "MCWR", "MCBOL",		\
-			"MCEOL", "INSRT", "OVER", "ECR", "EWR",		\
-			"EBOL", "EEOL",					\
-			0
-
-#ifdef	SLC_NAMES
-const char *slc_names[] = {
-	SLC_NAMELIST
-};
-#else
-extern char *slc_names[];
-#define	SLC_NAMES SLC_NAMELIST
-#endif
-
-#define	SLC_NAME_OK(x)	((unsigned int)(x) <= NSLC)
-#define SLC_NAME(x)	slc_names[x]
-
-#define	SLC_NOSUPPORT	0
-#define	SLC_CANTCHANGE	1
-#define	SLC_VARIABLE	2
-#define	SLC_DEFAULT	3
-#define	SLC_LEVELBITS	0x03
-
-#define	SLC_FUNC	0
-#define	SLC_FLAGS	1
-#define	SLC_VALUE	2
-
-#define	SLC_ACK		0x80
-#define	SLC_FLUSHIN	0x40
-#define	SLC_FLUSHOUT	0x20
-
-#define	OLD_ENV_VAR	1
-#define	OLD_ENV_VALUE	0
-#define	NEW_ENV_VAR	0
-#define	NEW_ENV_VALUE	1
-#define	ENV_ESC		2
-#define ENV_USERVAR	3
-
-/*
- * AUTHENTICATION suboptions
- */
-
-/*
- * Who is authenticating who ...
- */
-#define	AUTH_WHO_CLIENT		0	/* Client authenticating server */
-#define	AUTH_WHO_SERVER		1	/* Server authenticating client */
-#define	AUTH_WHO_MASK		1
-
-/*
- * amount of authentication done
- */
-#define	AUTH_HOW_ONE_WAY	0
-#define	AUTH_HOW_MUTUAL		2
-#define	AUTH_HOW_MASK		2
-
-#define	AUTHTYPE_NULL		0
-#define	AUTHTYPE_KERBEROS_V4	1
-#define	AUTHTYPE_KERBEROS_V5	2
-#define	AUTHTYPE_SPX		3
-#define	AUTHTYPE_MINK		4
-#define	AUTHTYPE_SRA		6
-#define	AUTHTYPE_CNT		7
-
-#define	AUTHTYPE_TEST		99
-
-#ifdef	AUTH_NAMES
-const char *authtype_names[] = {
-	"NULL", "KERBEROS_V4", "KERBEROS_V5", "SPX", "MINK", NULL, "SRA",
-	0
-};
-#else
-extern char *authtype_names[];
-#endif
-
-#define	AUTHTYPE_NAME_OK(x)	((unsigned int)(x) < AUTHTYPE_CNT)
-#define	AUTHTYPE_NAME(x)	authtype_names[x]
-
-/*
- * ENCRYPTion suboptions
- */
-#define	ENCRYPT_IS		0	/* I pick encryption type ... */
-#define	ENCRYPT_SUPPORT		1	/* I support encryption types ... */
-#define	ENCRYPT_REPLY		2	/* Initial setup response */
-#define	ENCRYPT_START		3	/* Am starting to send encrypted */
-#define	ENCRYPT_END		4	/* Am ending encrypted */
-#define	ENCRYPT_REQSTART	5	/* Request you start encrypting */
-#define	ENCRYPT_REQEND		6	/* Request you end encrypting */
-#define	ENCRYPT_ENC_KEYID	7
-#define	ENCRYPT_DEC_KEYID	8
-#define	ENCRYPT_CNT		9
-
-#define	ENCTYPE_ANY		0
-#define	ENCTYPE_DES_CFB64	1
-#define	ENCTYPE_DES_OFB64	2
-#define	ENCTYPE_CNT		3
-
-#ifdef	ENCRYPT_NAMES
-const char *encrypt_names[] = {
-	"IS", "SUPPORT", "REPLY", "START", "END",
-	"REQUEST-START", "REQUEST-END", "ENC-KEYID", "DEC-KEYID",
-	0
-};
-const char *enctype_names[] = {
-	"ANY", "DES_CFB64",  "DES_OFB64",
-	0
-};
-#else
-extern char *encrypt_names[];
-extern char *enctype_names[];
-#endif
-
-
-#define	ENCRYPT_NAME_OK(x)	((unsigned int)(x) < ENCRYPT_CNT)
-#define	ENCRYPT_NAME(x)		encrypt_names[x]
-
-#define	ENCTYPE_NAME_OK(x)	((unsigned int)(x) < ENCTYPE_CNT)
-#define	ENCTYPE_NAME(x)		enctype_names[x]
-
-#endif /* !_TELNET_H_ */
diff --git a/crypto/telnet/libtelnet/auth-proto.h b/crypto/telnet/libtelnet/auth-proto.h
deleted file mode 100644
index 6d3ba7f07493..000000000000
--- a/crypto/telnet/libtelnet/auth-proto.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)auth-proto.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- * 
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifdef	AUTHENTICATION
-
-Authenticator *findauthenticator(int, int);
-
-void auth_init(const char *, int);
-int auth_cmd(int, char **);
-void auth_request(void);
-void auth_send(unsigned char *, int);
-void auth_send_retry(void);
-void auth_is(unsigned char *, int);
-void auth_reply(unsigned char *, int);
-void auth_finished(Authenticator *, int);
-int auth_wait(char *);
-void auth_disable_name(char *);
-void auth_gen_printsub(unsigned char *, int, unsigned char *, int);
-void auth_name(unsigned char *, int);
-void auth_printsub(unsigned char *, int, unsigned char *, int);
-int auth_sendname(unsigned char *, int);
-void auth_encrypt_user(char *);
-int auth_disable(char *);
-int auth_enable(char *);
-int auth_togdebug(int);
-int auth_status(void);
-
-int getauthmask(char *, int *);
-
-#ifdef	KRB4
-int kerberos4_init(Authenticator *, int);
-int kerberos4_send(Authenticator *);
-void kerberos4_is(Authenticator *, unsigned char *, int);
-void kerberos4_reply(Authenticator *, unsigned char *, int);
-int kerberos4_status(Authenticator *, char *, int);
-void kerberos4_printsub(unsigned char *, int, unsigned char *, int);
-#endif
-
-#ifdef	KRB5
-int kerberos5_init(Authenticator *, int);
-int kerberos5_send_mutual(Authenticator *);
-int kerberos5_send_oneway(Authenticator *);
-void kerberos5_is(Authenticator *, unsigned char *, int);
-void kerberos5_reply(Authenticator *, unsigned char *, int);
-int kerberos5_status(Authenticator *, char *, int level);
-void kerberos5_printsub(unsigned char *, int, unsigned char *, int);
-#endif
-
-#ifdef SRA
-int sra_init(Authenticator *, int);
-int sra_send(Authenticator *);
-void sra_is(Authenticator *, unsigned char *, int);
-void sra_reply(Authenticator *, unsigned char *, int);
-int sra_status(Authenticator *, char *, int);
-void sra_printsub(unsigned char *, int, unsigned char *, int);
-#endif
-
-#endif
diff --git a/crypto/telnet/libtelnet/auth.c b/crypto/telnet/libtelnet/auth.c
deleted file mode 100644
index 46426559e088..000000000000
--- a/crypto/telnet/libtelnet/auth.c
+++ /dev/null
@@ -1,623 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)auth.c	8.3 (Berkeley) 5/30/95";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-
-#ifdef	AUTHENTICATION
-#define	AUTH_NAMES
-#include <sys/types.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <arpa/telnet.h>
-
-#include "encrypt.h"
-#include "auth.h"
-#include "misc-proto.h"
-#include "auth-proto.h"
-
-#define	typemask(x)	((x) > 0 ? 1 << ((x)-1) : 0)
-
-#ifdef	KRB4_ENCPWD
-extern krb4encpwd_init();
-extern krb4encpwd_send();
-extern krb4encpwd_is();
-extern krb4encpwd_reply();
-extern krb4encpwd_status();
-extern krb4encpwd_printsub();
-#endif
-
-#ifdef	RSA_ENCPWD
-extern rsaencpwd_init();
-extern rsaencpwd_send();
-extern rsaencpwd_is();
-extern rsaencpwd_reply();
-extern rsaencpwd_status();
-extern rsaencpwd_printsub();
-#endif
-
-int auth_debug_mode = 0;
-static 	const char	*Name = "Noname";
-static	int	Server = 0;
-static	Authenticator	*authenticated = 0;
-static	int	authenticating = 0;
-static	int	validuser = 0;
-static	unsigned char	_auth_send_data[256];
-static	unsigned char	*auth_send_data;
-static	int	auth_send_cnt = 0;
-
-int auth_onoff(char *type, int on);
-void auth_encrypt_user(char *name);
-
-/*
- * Authentication types supported.  Plese note that these are stored
- * in priority order, i.e. try the first one first.
- */
-Authenticator authenticators[] = {
-#ifdef	KRB5
-# ifdef	ENCRYPTION
-	{ AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
-				kerberos5_init,
-				kerberos5_send_mutual,
-				kerberos5_is,
-				kerberos5_reply,
-				kerberos5_status,
-				kerberos5_printsub },
-# endif	/* ENCRYPTION */
-	{ AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
-				kerberos5_init,
-				kerberos5_send_oneway,
-				kerberos5_is,
-				kerberos5_reply,
-				kerberos5_status,
-				kerberos5_printsub },
-#endif
-#ifdef	KRB4
-# ifdef ENCRYPTION
-	{ AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
-				kerberos4_init,
-				kerberos4_send,
-				kerberos4_is,
-				kerberos4_reply,
-				kerberos4_status,
-				kerberos4_printsub },
-# endif	/* ENCRYPTION */
-	{ AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
-				kerberos4_init,
-				kerberos4_send,
-				kerberos4_is,
-				kerberos4_reply,
-				kerberos4_status,
-				kerberos4_printsub },
-#endif
-#ifdef	KRB4_ENCPWD
-	{ AUTHTYPE_KRB4_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
-				krb4encpwd_init,
-				krb4encpwd_send,
-				krb4encpwd_is,
-				krb4encpwd_reply,
-				krb4encpwd_status,
-				krb4encpwd_printsub },
-#endif
-#ifdef	RSA_ENCPWD
-	{ AUTHTYPE_RSA_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
-				rsaencpwd_init,
-				rsaencpwd_send,
-				rsaencpwd_is,
-				rsaencpwd_reply,
-				rsaencpwd_status,
-				rsaencpwd_printsub },
-#endif
-#ifdef SRA
-	{ AUTHTYPE_SRA, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
-				sra_init,
-				sra_send,
-				sra_is,
-				sra_reply,
-				sra_status,
-				sra_printsub },
-
-#endif
-	{ 0, 0, 0, 0, 0, 0, 0, 0 },
-};
-
-static Authenticator NoAuth = { 0, 0, 0, 0, 0, 0, 0, 0 };
-
-static int	i_support = 0;
-static int	i_wont_support = 0;
-
-Authenticator *
-findauthenticator(int type, int way)
-{
-	Authenticator *ap = authenticators;
-
-	while (ap->type && (ap->type != type || ap->way != way))
-		++ap;
-	return(ap->type ? ap : 0);
-}
-
-void
-auth_init(const char *name, int server)
-{
-	Authenticator *ap = authenticators;
-
-	Server = server;
-	Name = name;
-
-	i_support = 0;
-	authenticated = 0;
-	authenticating = 0;
-	while (ap->type) {
-		if (!ap->init || (*ap->init)(ap, server)) {
-			i_support |= typemask(ap->type);
-			if (auth_debug_mode)
-				printf(">>>%s: I support auth type %d %d\r\n",
-					Name,
-					ap->type, ap->way);
-		}
-		else if (auth_debug_mode)
-			printf(">>>%s: Init failed: auth type %d %d\r\n",
-				Name, ap->type, ap->way);
-		++ap;
-	}
-}
-
-void
-auth_disable_name(char *name)
-{
-	int x;
-	for (x = 0; x < AUTHTYPE_CNT; ++x) {
-		if (AUTHTYPE_NAME(x) && !strcasecmp(name, AUTHTYPE_NAME(x))) {
-			i_wont_support |= typemask(x);
-			break;
-		}
-	}
-}
-
-int
-getauthmask(char *type, int *maskp)
-{
-	int x;
-
-	if (AUTHTYPE_NAME(0) && !strcasecmp(type, AUTHTYPE_NAME(0))) {
-		*maskp = -1;
-		return(1);
-	}
-
-	for (x = 1; x < AUTHTYPE_CNT; ++x) {
-		if (AUTHTYPE_NAME(x) && !strcasecmp(type, AUTHTYPE_NAME(x))) {
-			*maskp = typemask(x);
-			return(1);
-		}
-	}
-	return(0);
-}
-
-int
-auth_enable(char *type)
-{
-	return(auth_onoff(type, 1));
-}
-
-int
-auth_disable(char *type)
-{
-	return(auth_onoff(type, 0));
-}
-
-int
-auth_onoff(char *type, int on)
-{
-	int i, mask = -1;
-	Authenticator *ap;
-
-	if (!strcasecmp(type, "?") || !strcasecmp(type, "help")) {
-		printf("auth %s 'type'\n", on ? "enable" : "disable");
-		printf("Where 'type' is one of:\n");
-		printf("\t%s\n", AUTHTYPE_NAME(0));
-		mask = 0;
-		for (ap = authenticators; ap->type; ap++) {
-			if ((mask & (i = typemask(ap->type))) != 0)
-				continue;
-			mask |= i;
-			printf("\t%s\n", AUTHTYPE_NAME(ap->type));
-		}
-		return(0);
-	}
-
-	if (!getauthmask(type, &mask)) {
-		printf("%s: invalid authentication type\n", type);
-		return(0);
-	}
-	if (on)
-		i_wont_support &= ~mask;
-	else
-		i_wont_support |= mask;
-	return(1);
-}
-
-int
-auth_togdebug(int on)
-{
-	if (on < 0)
-		auth_debug_mode ^= 1;
-	else
-		auth_debug_mode = on;
-	printf("auth debugging %s\n", auth_debug_mode ? "enabled" : "disabled");
-	return(1);
-}
-
-int
-auth_status(void)
-{
-	Authenticator *ap;
-	int i, mask;
-
-	if (i_wont_support == -1)
-		printf("Authentication disabled\n");
-	else
-		printf("Authentication enabled\n");
-
-	mask = 0;
-	for (ap = authenticators; ap->type; ap++) {
-		if ((mask & (i = typemask(ap->type))) != 0)
-			continue;
-		mask |= i;
-		printf("%s: %s\n", AUTHTYPE_NAME(ap->type),
-			(i_wont_support & typemask(ap->type)) ?
-					"disabled" : "enabled");
-	}
-	return(1);
-}
-
-/*
- * This routine is called by the server to start authentication
- * negotiation.
- */
-void
-auth_request(void)
-{
-	static unsigned char str_request[64] = { IAC, SB,
-						 TELOPT_AUTHENTICATION,
-						 TELQUAL_SEND, };
-	Authenticator *ap = authenticators;
-	unsigned char *e = str_request + 4;
-
-	if (!authenticating) {
-		authenticating = 1;
-		while (ap->type) {
-			if (i_support & ~i_wont_support & typemask(ap->type)) {
-				if (auth_debug_mode) {
-					printf(">>>%s: Sending type %d %d\r\n",
-						Name, ap->type, ap->way);
-				}
-				*e++ = ap->type;
-				*e++ = ap->way;
-			}
-			++ap;
-		}
-		*e++ = IAC;
-		*e++ = SE;
-		net_write(str_request, e - str_request);
-		printsub('>', &str_request[2], e - str_request - 2);
-	}
-}
-
-/*
- * This is called when an AUTH SEND is received.
- * It should never arrive on the server side (as only the server can
- * send an AUTH SEND).
- * You should probably respond to it if you can...
- *
- * If you want to respond to the types out of order (i.e. even
- * if he sends  LOGIN KERBEROS and you support both, you respond
- * with KERBEROS instead of LOGIN (which is against what the
- * protocol says)) you will have to hack this code...
- */
-void
-auth_send(unsigned char *data, int cnt)
-{
-	Authenticator *ap;
-	static unsigned char str_none[] = { IAC, SB, TELOPT_AUTHENTICATION,
-					    TELQUAL_IS, AUTHTYPE_NULL, 0,
-					    IAC, SE };
-	if (Server) {
-		if (auth_debug_mode) {
-			printf(">>>%s: auth_send called!\r\n", Name);
-		}
-		return;
-	}
-
-	if (auth_debug_mode) {
-		printf(">>>%s: auth_send got:", Name);
-		printd(data, cnt); printf("\r\n");
-	}
-
-	/*
-	 * Save the data, if it is new, so that we can continue looking
-	 * at it if the authorization we try doesn't work
-	 */
-	if (data < _auth_send_data ||
-	    data > _auth_send_data + sizeof(_auth_send_data)) {
-		auth_send_cnt = (size_t)cnt > sizeof(_auth_send_data)
-					? sizeof(_auth_send_data)
-					: cnt;
-		memmove((void *)_auth_send_data, (void *)data, auth_send_cnt);
-		auth_send_data = _auth_send_data;
-	} else {
-		/*
-		 * This is probably a no-op, but we just make sure
-		 */
-		auth_send_data = data;
-		auth_send_cnt = cnt;
-	}
-	while ((auth_send_cnt -= 2) >= 0) {
-		if (auth_debug_mode)
-			printf(">>>%s: He supports %d\r\n",
-				Name, *auth_send_data);
-		if ((i_support & ~i_wont_support) & typemask(*auth_send_data)) {
-			ap = findauthenticator(auth_send_data[0],
-					       auth_send_data[1]);
-			if (ap && ap->send) {
-				if (auth_debug_mode)
-					printf(">>>%s: Trying %d %d\r\n",
-						Name, auth_send_data[0],
-							auth_send_data[1]);
-				if ((*ap->send)(ap)) {
-					/*
-					 * Okay, we found one we like
-					 * and did it.
-					 * we can go home now.
-					 */
-					if (auth_debug_mode)
-						printf(">>>%s: Using type %d\r\n",
-							Name, *auth_send_data);
-					auth_send_data += 2;
-					return;
-				}
-			}
-			/* else
-			 *	just continue on and look for the
-			 *	next one if we didn't do anything.
-			 */
-		}
-		auth_send_data += 2;
-	}
-	net_write(str_none, sizeof(str_none));
-	printsub('>', &str_none[2], sizeof(str_none) - 2);
-	if (auth_debug_mode)
-		printf(">>>%s: Sent failure message\r\n", Name);
-	auth_finished(0, AUTH_REJECT);
-}
-
-void
-auth_send_retry(void)
-{
-	/*
-	 * if auth_send_cnt <= 0 then auth_send will end up rejecting
-	 * the authentication and informing the other side of this.
-	 */
-	auth_send(auth_send_data, auth_send_cnt);
-}
-
-void
-auth_is(unsigned char *data, int cnt)
-{
-	Authenticator *ap;
-
-	if (cnt < 2)
-		return;
-
-	if (data[0] == AUTHTYPE_NULL) {
-		auth_finished(0, AUTH_REJECT);
-		return;
-	}
-
-	if ((ap = findauthenticator(data[0], data[1]))) {
-		if (ap->is)
-			(*ap->is)(ap, data+2, cnt-2);
-	} else if (auth_debug_mode)
-		printf(">>>%s: Invalid authentication in IS: %d\r\n",
-			Name, *data);
-}
-
-void
-auth_reply(unsigned char *data, int cnt)
-{
-	Authenticator *ap;
-
-	if (cnt < 2)
-		return;
-
-	if ((ap = findauthenticator(data[0], data[1]))) {
-		if (ap->reply)
-			(*ap->reply)(ap, data+2, cnt-2);
-	} else if (auth_debug_mode)
-		printf(">>>%s: Invalid authentication in SEND: %d\r\n",
-			Name, *data);
-}
-
-void
-auth_name(unsigned char *data, int cnt)
-{
-	unsigned char savename[256];
-
-	if (cnt < 1) {
-		if (auth_debug_mode)
-			printf(">>>%s: Empty name in NAME\r\n", Name);
-		return;
-	}
-	if ((size_t)cnt > sizeof(savename) - 1) {
-		if (auth_debug_mode)
-			printf(">>>%s: Name in NAME (%d) exceeds %d length\r\n",
-					Name, cnt, (u_int)sizeof(savename)-1);
-		return;
-	}
-	memmove((void *)savename, (void *)data, cnt);
-	savename[cnt] = '\0';	/* Null terminate */
-	if (auth_debug_mode)
-		printf(">>>%s: Got NAME [%s]\r\n", Name, savename);
-	auth_encrypt_user(savename);
-}
-
-int
-auth_sendname(unsigned char *cp, int len)
-{
-	static unsigned char str_request[256+6]
-			= { IAC, SB, TELOPT_AUTHENTICATION, TELQUAL_NAME, };
-	unsigned char *e = str_request + 4;
-	unsigned char *ee = &str_request[sizeof(str_request)-2];
-
-	while (--len >= 0) {
-		if ((*e++ = *cp++) == IAC)
-			*e++ = IAC;
-		if (e >= ee)
-			return(0);
-	}
-	*e++ = IAC;
-	*e++ = SE;
-	net_write(str_request, e - str_request);
-	printsub('>', &str_request[2], e - &str_request[2]);
-	return(1);
-}
-
-void
-auth_finished(Authenticator *ap, int result)
-{
-	if (!(authenticated = ap))
-		authenticated = &NoAuth;
-	validuser = result;
-}
-
-/* ARGSUSED */
-static void
-auth_intr(int sig __unused)
-{
-	auth_finished(0, AUTH_REJECT);
-}
-
-int
-auth_wait(char *name)
-{
-	if (auth_debug_mode)
-		printf(">>>%s: in auth_wait.\r\n", Name);
-
-	if (Server && !authenticating)
-		return(0);
-
-	(void) signal(SIGALRM, auth_intr);
-	alarm(30);
-	while (!authenticated)
-		if (telnet_spin())
-			break;
-	alarm(0);
-	(void) signal(SIGALRM, SIG_DFL);
-
-	/*
-	 * Now check to see if the user is valid or not
-	 */
-	if (!authenticated || authenticated == &NoAuth)
-		return(AUTH_REJECT);
-
-	if (validuser == AUTH_VALID)
-		validuser = AUTH_USER;
-
-	if (authenticated->status)
-		validuser = (*authenticated->status)(authenticated,
-						     name, validuser);
-	return(validuser);
-}
-
-void
-auth_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	Authenticator *ap;
-
-	if ((ap = findauthenticator(data[1], data[2])) && ap->printsub)
-		(*ap->printsub)(data, cnt, buf, buflen);
-	else
-		auth_gen_printsub(data, cnt, buf, buflen);
-}
-
-void
-auth_gen_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	unsigned char *cp;
-	unsigned char tbuf[16];
-
-	cnt -= 3;
-	data += 3;
-	buf[buflen-1] = '\0';
-	buf[buflen-2] = '*';
-	buflen -= 2;
-	for (; cnt > 0; cnt--, data++) {
-		sprintf((char *)tbuf, " %d", *data);
-		for (cp = tbuf; *cp && buflen > 0; --buflen)
-			*buf++ = *cp++;
-		if (buflen <= 0)
-			return;
-	}
-	*buf = '\0';
-}
-#endif
diff --git a/crypto/telnet/libtelnet/auth.h b/crypto/telnet/libtelnet/auth.h
deleted file mode 100644
index a8ee04831d67..000000000000
--- a/crypto/telnet/libtelnet/auth.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)auth.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifndef	__AUTH__
-#define	__AUTH__
-
-#define	AUTH_REJECT	0	/* Rejected */
-#define	AUTH_UNKNOWN	1	/* We don't know who he is, but he's okay */
-#define	AUTH_OTHER	2	/* We know him, but not his name */
-#define	AUTH_USER	3	/* We know he name */
-#define	AUTH_VALID	4	/* We know him, and he needs no password */
-
-typedef struct XauthP {
-	int	type;
-	int	way;
-	int	(*init)(struct XauthP *, int);
-	int	(*send)(struct XauthP *);
-	void	(*is)(struct XauthP *, unsigned char *, int);
-	void	(*reply)(struct XauthP *, unsigned char *, int);
-	int	(*status)(struct XauthP *, char *, int);
-	void	(*printsub)(unsigned char *, int, unsigned char *, int);
-} Authenticator;
-
-#include "auth-proto.h"
-
-extern int auth_debug_mode;
-#endif
diff --git a/crypto/telnet/libtelnet/enc-proto.h b/crypto/telnet/libtelnet/enc-proto.h
deleted file mode 100644
index 46663c7789e2..000000000000
--- a/crypto/telnet/libtelnet/enc-proto.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)enc-proto.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifdef	ENCRYPTION
-void encrypt_init(const char *, int);
-Encryptions *findencryption(int);
-void encrypt_send_supprt(void);
-void encrypt_auto(int);
-void decrypt_auto(int);
-void encrypt_is(unsigned char *, int);
-void encrypt_reply(unsigned char *, int);
-void encrypt_start_input(int);
-void encrypt_session_key(Session_Key *, int);
-void encrypt_end_input(void);
-void encrypt_start_output(int);
-void encrypt_end_output(void);
-void encrypt_send_request_start(void);
-void encrypt_send_request_end(void);
-void encrypt_send_end(void);
-void encrypt_wait(void);
-void encrypt_send_support(void);
-void encrypt_send_keyid(int, const char *, int, int);
-void encrypt_start(unsigned char *, int);
-void encrypt_end(void);
-void encrypt_support(unsigned char *, int);
-void encrypt_request_start(unsigned char *, int);
-void encrypt_request_end(void);
-void encrypt_enc_keyid(unsigned char *, int);
-void encrypt_dec_keyid(unsigned char *, int);
-void encrypt_printsub(unsigned char *, int, unsigned char *, int);
-void encrypt_gen_printsub(unsigned char *, int, unsigned char *, int);
-void encrypt_display(void);
-
-void fb64_printsub(unsigned char *, int, unsigned char *, int, const char *);
-
-int EncryptEnable(char *, char *);
-int EncryptDisable(char *, char *);
-int EncryptStatus(void);
-int EncryptDebug(int);
-int EncryptVerbose(int);
-int EncryptAutoEnc(int);
-int EncryptAutoDec(int);
-
-void krbdes_encrypt(unsigned char *, int);
-int krbdes_decrypt(int);
-int krbdes_is(unsigned char *, int);
-int krbdes_reply(unsigned char *, int);
-void krbdes_init(int);
-int krbdes_start(int, int);
-void krbdes_session(Session_Key *, int);
-void krbdes_printsub(unsigned char *, int, unsigned char *, int);
-
-void cfb64_encrypt(unsigned char *, int);
-int cfb64_decrypt(int);
-void cfb64_init(int);
-int cfb64_start(int, int);
-int cfb64_is(unsigned char *, int);
-int cfb64_reply(unsigned char *, int);
-void cfb64_session(Session_Key *, int);
-int cfb64_keyid(int, unsigned char *, int *);
-void cfb64_printsub(unsigned char *, int, unsigned char *, int);
-
-void ofb64_encrypt(unsigned char *, int);
-int ofb64_decrypt(int);
-void ofb64_init(int);
-int ofb64_start(int, int);
-int ofb64_is(unsigned char *, int);
-int ofb64_reply(unsigned char *, int);
-void ofb64_session(Session_Key *, int);
-int ofb64_keyid(int, unsigned char *, int *);
-void ofb64_printsub(unsigned char *, int, unsigned char *, int);
-
-#endif	/* ENCRYPTION */
diff --git a/crypto/telnet/libtelnet/enc_des.c b/crypto/telnet/libtelnet/enc_des.c
deleted file mode 100644
index 2f7fe6e74402..000000000000
--- a/crypto/telnet/libtelnet/enc_des.c
+++ /dev/null
@@ -1,662 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)enc_des.c	8.3 (Berkeley) 5/30/95";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifdef	ENCRYPTION
-# ifdef	AUTHENTICATION
-#include <arpa/telnet.h>
-#include <openssl/des.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "encrypt.h"
-#include "key-proto.h"
-#include "misc-proto.h"
-
-extern int encrypt_debug_mode;
-
-#define	CFB	0
-#define	OFB	1
-
-#define	NO_SEND_IV	1
-#define	NO_RECV_IV	2
-#define	NO_KEYID	4
-#define	IN_PROGRESS	(NO_SEND_IV|NO_RECV_IV|NO_KEYID)
-#define	SUCCESS		0
-#define	FAILED		-1
-
-
-struct fb {
-	Block krbdes_key;
-	Schedule krbdes_sched;
-	Block temp_feed;
-	unsigned char fb_feed[64];
-	int need_start;
-	int state[2];
-	int keyid[2];
-	struct stinfo {
-		Block		str_output;
-		Block		str_feed;
-		Block		str_iv;
-		Block		str_ikey;
-		Schedule	str_sched;
-		int		str_index;
-		int		str_flagshift;
-	} streams[2];
-};
-
-static struct fb fb[2];
-
-struct keyidlist {
-	const char *keyid;
-	int	keyidlen;
-	char	*key;
-	int	keylen;
-	int	flags;
-} keyidlist [] = {
-	{ "\0", 1, 0, 0, 0 },		/* default key of zero */
-	{ 0, 0, 0, 0, 0 }
-};
-
-#define	KEYFLAG_MASK	03
-
-#define	KEYFLAG_NOINIT	00
-#define	KEYFLAG_INIT	01
-#define	KEYFLAG_OK	02
-#define	KEYFLAG_BAD	03
-
-#define	KEYFLAG_SHIFT	2
-
-#define	SHIFT_VAL(a,b)	(KEYFLAG_SHIFT*((a)+((b)*2)))
-
-#define	FB64_IV		1
-#define	FB64_IV_OK	2
-#define	FB64_IV_BAD	3
-
-
-void fb64_stream_iv(Block, struct stinfo *);
-void fb64_init(struct fb *);
-static int fb64_start(struct fb *, int, int);
-int fb64_is(unsigned char *, int, struct fb *);
-int fb64_reply(unsigned char *, int, struct fb *);
-static void fb64_session(Session_Key *, int, struct fb *);
-void fb64_stream_key(Block, struct stinfo *);
-int fb64_keyid(int, unsigned char *, int *, struct fb *);
-
-void
-cfb64_init(int server __unused)
-{
-	fb64_init(&fb[CFB]);
-	fb[CFB].fb_feed[4] = ENCTYPE_DES_CFB64;
-	fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, CFB);
-	fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, CFB);
-}
-
-void
-ofb64_init(int server __unused)
-{
-	fb64_init(&fb[OFB]);
-	fb[OFB].fb_feed[4] = ENCTYPE_DES_OFB64;
-	fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, OFB);
-	fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, OFB);
-}
-
-void
-fb64_init(struct fb *fbp)
-{
-	memset((void *)fbp, 0, sizeof(*fbp));
-	fbp->state[0] = fbp->state[1] = FAILED;
-	fbp->fb_feed[0] = IAC;
-	fbp->fb_feed[1] = SB;
-	fbp->fb_feed[2] = TELOPT_ENCRYPT;
-	fbp->fb_feed[3] = ENCRYPT_IS;
-}
-
-/*
- * Returns:
- *	-1: some error.  Negotiation is done, encryption not ready.
- *	 0: Successful, initial negotiation all done.
- *	 1: successful, negotiation not done yet.
- *	 2: Not yet.  Other things (like getting the key from
- *	    Kerberos) have to happen before we can continue.
- */
-int
-cfb64_start(int dir, int server)
-{
-	return(fb64_start(&fb[CFB], dir, server));
-}
-
-int
-ofb64_start(int dir, int server)
-{
-	return(fb64_start(&fb[OFB], dir, server));
-}
-
-static int
-fb64_start(struct fb *fbp, int dir, int server __unused)
-{
-	size_t x;
-	unsigned char *p;
-	int state;
-
-	switch (dir) {
-	case DIR_DECRYPT:
-		/*
-		 * This is simply a request to have the other side
-		 * start output (our input).  He will negotiate an
-		 * IV so we need not look for it.
-		 */
-		state = fbp->state[dir-1];
-		if (state == FAILED)
-			state = IN_PROGRESS;
-		break;
-
-	case DIR_ENCRYPT:
-		state = fbp->state[dir-1];
-		if (state == FAILED)
-			state = IN_PROGRESS;
-		else if ((state & NO_SEND_IV) == 0)
-			break;
-
-		if (!VALIDKEY(fbp->krbdes_key)) {
-			fbp->need_start = 1;
-			break;
-		}
-		state &= ~NO_SEND_IV;
-		state |= NO_RECV_IV;
-		if (encrypt_debug_mode)
-			printf("Creating new feed\r\n");
-		/*
-		 * Create a random feed and send it over.
-		 */
-		des_random_key((Block *)fbp->temp_feed);
-		des_ecb_encrypt((Block *)fbp->temp_feed, (Block *)fbp->temp_feed,
-				fbp->krbdes_sched, 1);
-		p = fbp->fb_feed + 3;
-		*p++ = ENCRYPT_IS;
-		p++;
-		*p++ = FB64_IV;
-		for (x = 0; x < sizeof(Block); ++x) {
-			if ((*p++ = fbp->temp_feed[x]) == IAC)
-				*p++ = IAC;
-		}
-		*p++ = IAC;
-		*p++ = SE;
-		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
-		net_write(fbp->fb_feed, p - fbp->fb_feed);
-		break;
-	default:
-		return(FAILED);
-	}
-	return(fbp->state[dir-1] = state);
-}
-
-/*
- * Returns:
- *	-1: some error.  Negotiation is done, encryption not ready.
- *	 0: Successful, initial negotiation all done.
- *	 1: successful, negotiation not done yet.
- */
-int
-cfb64_is(unsigned char *data, int cnt)
-{
-	return(fb64_is(data, cnt, &fb[CFB]));
-}
-
-int
-ofb64_is(unsigned char *data, int cnt)
-{
-	return(fb64_is(data, cnt, &fb[OFB]));
-}
-
-int
-fb64_is(unsigned char *data, int cnt, struct fb *fbp)
-{
-	unsigned char *p;
-	int state = fbp->state[DIR_DECRYPT-1];
-
-	if (cnt-- < 1)
-		goto failure;
-
-	switch (*data++) {
-	case FB64_IV:
-		if (cnt != sizeof(Block)) {
-			if (encrypt_debug_mode)
-				printf("CFB64: initial vector failed on size\r\n");
-			state = FAILED;
-			goto failure;
-		}
-
-		if (encrypt_debug_mode)
-			printf("CFB64: initial vector received\r\n");
-
-		if (encrypt_debug_mode)
-			printf("Initializing Decrypt stream\r\n");
-
-		fb64_stream_iv((void *)data, &fbp->streams[DIR_DECRYPT-1]);
-
-		p = fbp->fb_feed + 3;
-		*p++ = ENCRYPT_REPLY;
-		p++;
-		*p++ = FB64_IV_OK;
-		*p++ = IAC;
-		*p++ = SE;
-		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
-		net_write(fbp->fb_feed, p - fbp->fb_feed);
-
-		state = fbp->state[DIR_DECRYPT-1] = IN_PROGRESS;
-		break;
-
-	default:
-		if (encrypt_debug_mode) {
-			printf("Unknown option type: %d\r\n", *(data-1));
-			printd(data, cnt);
-			printf("\r\n");
-		}
-		/* FALL THROUGH */
-	failure:
-		/*
-		 * We failed.  Send an FB64_IV_BAD option
-		 * to the other side so it will know that
-		 * things failed.
-		 */
-		p = fbp->fb_feed + 3;
-		*p++ = ENCRYPT_REPLY;
-		p++;
-		*p++ = FB64_IV_BAD;
-		*p++ = IAC;
-		*p++ = SE;
-		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
-		net_write(fbp->fb_feed, p - fbp->fb_feed);
-
-		break;
-	}
-	return(fbp->state[DIR_DECRYPT-1] = state);
-}
-
-/*
- * Returns:
- *	-1: some error.  Negotiation is done, encryption not ready.
- *	 0: Successful, initial negotiation all done.
- *	 1: successful, negotiation not done yet.
- */
-int
-cfb64_reply(unsigned char *data, int cnt)
-{
-	return(fb64_reply(data, cnt, &fb[CFB]));
-}
-
-int
-ofb64_reply(unsigned char *data, int cnt)
-{
-	return(fb64_reply(data, cnt, &fb[OFB]));
-}
-
-int
-fb64_reply(unsigned char *data, int cnt, struct fb *fbp)
-{
-	int state = fbp->state[DIR_ENCRYPT-1];
-
-	if (cnt-- < 1)
-		goto failure;
-
-	switch (*data++) {
-	case FB64_IV_OK:
-		fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);
-		if (state == FAILED)
-			state = IN_PROGRESS;
-		state &= ~NO_RECV_IV;
-		encrypt_send_keyid(DIR_ENCRYPT, "\0", 1, 1);
-		break;
-
-	case FB64_IV_BAD:
-		memset(fbp->temp_feed, 0, sizeof(Block));
-		fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);
-		state = FAILED;
-		break;
-
-	default:
-		if (encrypt_debug_mode) {
-			printf("Unknown option type: %d\r\n", data[-1]);
-			printd(data, cnt);
-			printf("\r\n");
-		}
-		/* FALL THROUGH */
-	failure:
-		state = FAILED;
-		break;
-	}
-	return(fbp->state[DIR_ENCRYPT-1] = state);
-}
-
-void
-cfb64_session(Session_Key *key, int server)
-{
-	fb64_session(key, server, &fb[CFB]);
-}
-
-void
-ofb64_session(Session_Key *key, int server)
-{
-	fb64_session(key, server, &fb[OFB]);
-}
-
-static void
-fb64_session(Session_Key *key, int server, struct fb *fbp)
-{
-	if (!key || key->type != SK_DES) {
-		if (encrypt_debug_mode)
-			printf("Can't set krbdes's session key (%d != %d)\r\n",
-				key ? key->type : -1, SK_DES);
-		return;
-	}
-	memmove((void *)fbp->krbdes_key, (void *)key->data, sizeof(Block));
-
-	fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_ENCRYPT-1]);
-	fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_DECRYPT-1]);
-
-	des_key_sched((Block *)fbp->krbdes_key, fbp->krbdes_sched);
-	/*
-	 * Now look to see if krbdes_start() was was waiting for
-	 * the key to show up.  If so, go ahead an call it now
-	 * that we have the key.
-	 */
-	if (fbp->need_start) {
-		fbp->need_start = 0;
-		fb64_start(fbp, DIR_ENCRYPT, server);
-	}
-}
-
-/*
- * We only accept a keyid of 0.  If we get a keyid of
- * 0, then mark the state as SUCCESS.
- */
-int
-cfb64_keyid(int dir, unsigned char *kp, int *lenp)
-{
-	return(fb64_keyid(dir, kp, lenp, &fb[CFB]));
-}
-
-int
-ofb64_keyid(int dir, unsigned char *kp, int *lenp)
-{
-	return(fb64_keyid(dir, kp, lenp, &fb[OFB]));
-}
-
-int
-fb64_keyid(int dir, unsigned char *kp, int *lenp, struct fb *fbp)
-{
-	int state = fbp->state[dir-1];
-
-	if (*lenp != 1 || (*kp != '\0')) {
-		*lenp = 0;
-		return(state);
-	}
-
-	if (state == FAILED)
-		state = IN_PROGRESS;
-
-	state &= ~NO_KEYID;
-
-	return(fbp->state[dir-1] = state);
-}
-
-void
-fb64_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen, const char *type)
-{
-	char lbuf[32];
-	int i;
-	char *cp;
-
-	buf[buflen-1] = '\0';		/* make sure it's NULL terminated */
-	buflen -= 1;
-
-	switch(data[2]) {
-	case FB64_IV:
-		sprintf(lbuf, "%s_IV", type);
-		cp = lbuf;
-		goto common;
-
-	case FB64_IV_OK:
-		sprintf(lbuf, "%s_IV_OK", type);
-		cp = lbuf;
-		goto common;
-
-	case FB64_IV_BAD:
-		sprintf(lbuf, "%s_IV_BAD", type);
-		cp = lbuf;
-		goto common;
-
-	default:
-		sprintf(lbuf, " %d (unknown)", data[2]);
-		cp = lbuf;
-	common:
-		for (; (buflen > 0) && (*buf = *cp++); buf++)
-			buflen--;
-		for (i = 3; i < cnt; i++) {
-			sprintf(lbuf, " %d", data[i]);
-			for (cp = lbuf; (buflen > 0) && (*buf = *cp++); buf++)
-				buflen--;
-		}
-		break;
-	}
-}
-
-void
-cfb64_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	fb64_printsub(data, cnt, buf, buflen, "CFB64");
-}
-
-void
-ofb64_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	fb64_printsub(data, cnt, buf, buflen, "OFB64");
-}
-
-void
-fb64_stream_iv(Block seed, struct stinfo *stp)
-{
-
-	memmove((void *)stp->str_iv, (void *)seed, sizeof(Block));
-	memmove((void *)stp->str_output, (void *)seed, sizeof(Block));
-
-	des_key_sched((Block *)stp->str_ikey, stp->str_sched);
-
-	stp->str_index = sizeof(Block);
-}
-
-void
-fb64_stream_key(Block key, struct stinfo *stp)
-{
-	memmove((void *)stp->str_ikey, (void *)key, sizeof(Block));
-	des_key_sched((Block *)key, stp->str_sched);
-
-	memmove((void *)stp->str_output, (void *)stp->str_iv, sizeof(Block));
-
-	stp->str_index = sizeof(Block);
-}
-
-/*
- * DES 64 bit Cipher Feedback
- *
- *     key --->+-----+
- *          +->| DES |--+
- *          |  +-----+  |
- *	    |           v
- *  INPUT --(--------->(+)+---> DATA
- *          |             |
- *	    +-------------+
- *
- *
- * Given:
- *	iV: Initial vector, 64 bits (8 bytes) long.
- *	Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt).
- *	On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output.
- *
- *	V0 = DES(iV, key)
- *	On = Dn ^ Vn
- *	V(n+1) = DES(On, key)
- */
-
-void
-cfb64_encrypt(unsigned char *s, int c)
-{
-	struct stinfo *stp = &fb[CFB].streams[DIR_ENCRYPT-1];
-	int idx;
-
-	idx = stp->str_index;
-	while (c-- > 0) {
-		if (idx == sizeof(Block)) {
-			Block b;
-			des_ecb_encrypt((Block *)stp->str_output, (Block *)b, stp->str_sched, 1);
-			memmove((void *)stp->str_feed, (void *)b, sizeof(Block));
-			idx = 0;
-		}
-
-		/* On encryption, we store (feed ^ data) which is cypher */
-		*s = stp->str_output[idx] = (stp->str_feed[idx] ^ *s);
-		s++;
-		idx++;
-	}
-	stp->str_index = idx;
-}
-
-int
-cfb64_decrypt(int data)
-{
-	struct stinfo *stp = &fb[CFB].streams[DIR_DECRYPT-1];
-	int idx;
-
-	if (data == -1) {
-		/*
-		 * Back up one byte.  It is assumed that we will
-		 * never back up more than one byte.  If we do, this
-		 * may or may not work.
-		 */
-		if (stp->str_index)
-			--stp->str_index;
-		return(0);
-	}
-
-	idx = stp->str_index++;
-	if (idx == sizeof(Block)) {
-		Block b;
-		des_ecb_encrypt((Block *)stp->str_output, (Block *)b, stp->str_sched, 1);
-		memmove((void *)stp->str_feed, (void *)b, sizeof(Block));
-		stp->str_index = 1;	/* Next time will be 1 */
-		idx = 0;		/* But now use 0 */
-	}
-
-	/* On decryption we store (data) which is cypher. */
-	stp->str_output[idx] = data;
-	return(data ^ stp->str_feed[idx]);
-}
-
-/*
- * DES 64 bit Output Feedback
- *
- * key --->+-----+
- *	+->| DES |--+
- *	|  +-----+  |
- *	+-----------+
- *	            v
- *  INPUT -------->(+) ----> DATA
- *
- * Given:
- *	iV: Initial vector, 64 bits (8 bytes) long.
- *	Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt).
- *	On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output.
- *
- *	V0 = DES(iV, key)
- *	V(n+1) = DES(Vn, key)
- *	On = Dn ^ Vn
- */
-void
-ofb64_encrypt(unsigned char *s, int c)
-{
-	struct stinfo *stp = &fb[OFB].streams[DIR_ENCRYPT-1];
-	int idx;
-
-	idx = stp->str_index;
-	while (c-- > 0) {
-		if (idx == sizeof(Block)) {
-			Block b;
-			des_ecb_encrypt((Block *)stp->str_feed, (Block *)b, stp->str_sched, 1);
-			memmove((void *)stp->str_feed, (void *)b, sizeof(Block));
-			idx = 0;
-		}
-		*s++ ^= stp->str_feed[idx];
-		idx++;
-	}
-	stp->str_index = idx;
-}
-
-int
-ofb64_decrypt(int data)
-{
-	struct stinfo *stp = &fb[OFB].streams[DIR_DECRYPT-1];
-	int idx;
-
-	if (data == -1) {
-		/*
-		 * Back up one byte.  It is assumed that we will
-		 * never back up more than one byte.  If we do, this
-		 * may or may not work.
-		 */
-		if (stp->str_index)
-			--stp->str_index;
-		return(0);
-	}
-
-	idx = stp->str_index++;
-	if (idx == sizeof(Block)) {
-		Block b;
-		des_ecb_encrypt((Block *)stp->str_feed, (Block *)b, stp->str_sched, 1);
-		memmove((void *)stp->str_feed, (void *)b, sizeof(Block));
-		stp->str_index = 1;	/* Next time will be 1 */
-		idx = 0;		/* But now use 0 */
-	}
-
-	return(data ^ stp->str_feed[idx]);
-}
-# endif	/* AUTHENTICATION */
-#endif	/* ENCRYPTION */
diff --git a/crypto/telnet/libtelnet/encrypt.c b/crypto/telnet/libtelnet/encrypt.c
deleted file mode 100644
index 8bdf672ab3ba..000000000000
--- a/crypto/telnet/libtelnet/encrypt.c
+++ /dev/null
@@ -1,953 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static const char sccsid[] = "@(#)encrypt.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif /* not lint */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifdef	ENCRYPTION
-
-#include <sys/types.h>
-#define	ENCRYPT_NAMES
-#include <arpa/telnet.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "encrypt.h"
-#include "misc.h"
-
-/*
- * These functions pointers point to the current routines
- * for encrypting and decrypting data.
- */
-void	(*encrypt_output)(unsigned char *, int);
-int	(*decrypt_input)(int);
-
-int EncryptType(char *type, char *mode);
-int EncryptStart(char *mode);
-int EncryptStop(char *mode);
-int EncryptStartInput(void);
-int EncryptStartOutput(void);
-int EncryptStopInput(void);
-int EncryptStopOutput(void);
-
-int encrypt_debug_mode = 0;
-static int decrypt_mode = 0;
-static int encrypt_mode = 0;
-static int encrypt_verbose = 0;
-static int autoencrypt = 0;
-static int autodecrypt = 0;
-static int havesessionkey = 0;
-static int Server = 0;
-static const char *Name = "Noname";
-
-#define	typemask(x)	((x) > 0 ? 1 << ((x)-1) : 0)
-
-static u_long i_support_encrypt = 0
- | typemask(ENCTYPE_DES_CFB64) | typemask(ENCTYPE_DES_OFB64)
- |0;
-static u_long i_support_decrypt = 0
- | typemask(ENCTYPE_DES_CFB64) | typemask(ENCTYPE_DES_OFB64)
- |0;
-
-static u_long i_wont_support_encrypt = 0;
-static u_long i_wont_support_decrypt = 0;
-#define	I_SUPPORT_ENCRYPT	(i_support_encrypt & ~i_wont_support_encrypt)
-#define	I_SUPPORT_DECRYPT	(i_support_decrypt & ~i_wont_support_decrypt)
-
-static u_long remote_supports_encrypt = 0;
-static u_long remote_supports_decrypt = 0;
-
-static Encryptions encryptions[] = {
-    { "DES_CFB64",	ENCTYPE_DES_CFB64,
-			cfb64_encrypt,
-			cfb64_decrypt,
-			cfb64_init,
-			cfb64_start,
-			cfb64_is,
-			cfb64_reply,
-			cfb64_session,
-			cfb64_keyid,
-			cfb64_printsub },
-    { "DES_OFB64",	ENCTYPE_DES_OFB64,
-			ofb64_encrypt,
-			ofb64_decrypt,
-			ofb64_init,
-			ofb64_start,
-			ofb64_is,
-			ofb64_reply,
-			ofb64_session,
-			ofb64_keyid,
-			ofb64_printsub },
-    { NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-};
-
-static unsigned char str_send[64] = { IAC, SB, TELOPT_ENCRYPT,
-					 ENCRYPT_SUPPORT };
-static unsigned char str_suplen = 0;
-static unsigned char str_start[72] = { IAC, SB, TELOPT_ENCRYPT };
-static unsigned char str_end[] = { IAC, SB, TELOPT_ENCRYPT, 0, IAC, SE };
-
-Encryptions *
-findencryption(int type)
-{
-	Encryptions *ep = encryptions;
-
-	if (!(I_SUPPORT_ENCRYPT & remote_supports_decrypt & (unsigned)typemask(type)))
-		return(0);
-	while (ep->type && ep->type != type)
-		++ep;
-	return(ep->type ? ep : 0);
-}
-
-static Encryptions *
-finddecryption(int type)
-{
-	Encryptions *ep = encryptions;
-
-	if (!(I_SUPPORT_DECRYPT & remote_supports_encrypt & (unsigned)typemask(type)))
-		return(0);
-	while (ep->type && ep->type != type)
-		++ep;
-	return(ep->type ? ep : 0);
-}
-
-#define	MAXKEYLEN 64
-
-static struct key_info {
-	unsigned char keyid[MAXKEYLEN];
-	int keylen;
-	int dir;
-	int *modep;
-	Encryptions *(*getcrypt)(int);
-} ki[2] = {
-	{ { 0 }, 0, DIR_ENCRYPT, &encrypt_mode, findencryption },
-	{ { 0 }, 0, DIR_DECRYPT, &decrypt_mode, finddecryption },
-};
-
-static void encrypt_keyid(struct key_info *kp, unsigned char *keyid, int len);
-
-void
-encrypt_init(const char *name, int server)
-{
-	Encryptions *ep = encryptions;
-
-	Name = name;
-	Server = server;
-	i_support_encrypt = i_support_decrypt = 0;
-	remote_supports_encrypt = remote_supports_decrypt = 0;
-	encrypt_mode = 0;
-	decrypt_mode = 0;
-	encrypt_output = 0;
-	decrypt_input = 0;
-
-	str_suplen = 4;
-
-	while (ep->type) {
-		if (encrypt_debug_mode)
-			printf(">>>%s: I will support %s\r\n",
-				Name, ENCTYPE_NAME(ep->type));
-		i_support_encrypt |= typemask(ep->type);
-		i_support_decrypt |= typemask(ep->type);
-		if ((i_wont_support_decrypt & typemask(ep->type)) == 0)
-			if ((str_send[str_suplen++] = ep->type) == IAC)
-				str_send[str_suplen++] = IAC;
-		if (ep->init)
-			(*ep->init)(Server);
-		++ep;
-	}
-	str_send[str_suplen++] = IAC;
-	str_send[str_suplen++] = SE;
-}
-
-static void
-encrypt_list_types(void)
-{
-	Encryptions *ep = encryptions;
-
-	printf("Valid encryption types:\n");
-	while (ep->type) {
-		printf("\t%s (%d)\r\n", ENCTYPE_NAME(ep->type), ep->type);
-		++ep;
-	}
-}
-
-int
-EncryptEnable(char *type, char *mode)
-{
-	if (isprefix(type, "help") || isprefix(type, "?")) {
-		printf("Usage: encrypt enable <type> [input|output]\n");
-		encrypt_list_types();
-		return(0);
-	}
-	if (EncryptType(type, mode))
-		return(EncryptStart(mode));
-	return(0);
-}
-
-int
-EncryptDisable(char *type, char *mode)
-{
-	Encryptions *ep;
-	int ret = 0;
-
-	if (isprefix(type, "help") || isprefix(type, "?")) {
-		printf("Usage: encrypt disable <type> [input|output]\n");
-		encrypt_list_types();
-	} else if ((ep = (Encryptions *)genget(type, (char **)encryptions,
-						sizeof(Encryptions))) == 0) {
-		printf("%s: invalid encryption type\n", type);
-	} else if (Ambiguous((char **)ep)) {
-		printf("Ambiguous type '%s'\n", type);
-	} else {
-		if ((mode == 0) || (isprefix(mode, "input") ? 1 : 0)) {
-			if (decrypt_mode == ep->type)
-				EncryptStopInput();
-			i_wont_support_decrypt |= typemask(ep->type);
-			ret = 1;
-		}
-		if ((mode == 0) || (isprefix(mode, "output"))) {
-			if (encrypt_mode == ep->type)
-				EncryptStopOutput();
-			i_wont_support_encrypt |= typemask(ep->type);
-			ret = 1;
-		}
-		if (ret == 0)
-			printf("%s: invalid encryption mode\n", mode);
-	}
-	return(ret);
-}
-
-int
-EncryptType(char *type, char *mode)
-{
-	Encryptions *ep;
-	int ret = 0;
-
-	if (isprefix(type, "help") || isprefix(type, "?")) {
-		printf("Usage: encrypt type <type> [input|output]\n");
-		encrypt_list_types();
-	} else if ((ep = (Encryptions *)genget(type, (char **)encryptions,
-						sizeof(Encryptions))) == 0) {
-		printf("%s: invalid encryption type\n", type);
-	} else if (Ambiguous((char **)ep)) {
-		printf("Ambiguous type '%s'\n", type);
-	} else {
-		if ((mode == 0) || isprefix(mode, "input")) {
-			decrypt_mode = ep->type;
-			i_wont_support_decrypt &= ~typemask(ep->type);
-			ret = 1;
-		}
-		if ((mode == 0) || isprefix(mode, "output")) {
-			encrypt_mode = ep->type;
-			i_wont_support_encrypt &= ~typemask(ep->type);
-			ret = 1;
-		}
-		if (ret == 0)
-			printf("%s: invalid encryption mode\n", mode);
-	}
-	return(ret);
-}
-
-int
-EncryptStart(char *mode)
-{
-	int ret = 0;
-	if (mode) {
-		if (isprefix(mode, "input"))
-			return(EncryptStartInput());
-		if (isprefix(mode, "output"))
-			return(EncryptStartOutput());
-		if (isprefix(mode, "help") || isprefix(mode, "?")) {
-			printf("Usage: encrypt start [input|output]\n");
-			return(0);
-		}
-		printf("%s: invalid encryption mode 'encrypt start ?' for help\n", mode);
-		return(0);
-	}
-	ret += EncryptStartInput();
-	ret += EncryptStartOutput();
-	return(ret);
-}
-
-int
-EncryptStartInput(void)
-{
-	if (decrypt_mode) {
-		encrypt_send_request_start();
-		return(1);
-	}
-	printf("No previous decryption mode, decryption not enabled\r\n");
-	return(0);
-}
-
-int
-EncryptStartOutput(void)
-{
-	if (encrypt_mode) {
-		encrypt_start_output(encrypt_mode);
-		return(1);
-	}
-	printf("No previous encryption mode, encryption not enabled\r\n");
-	return(0);
-}
-
-int
-EncryptStop(char *mode)
-{
-	int ret = 0;
-	if (mode) {
-		if (isprefix(mode, "input"))
-			return(EncryptStopInput());
-		if (isprefix(mode, "output"))
-			return(EncryptStopOutput());
-		if (isprefix(mode, "help") || isprefix(mode, "?")) {
-			printf("Usage: encrypt stop [input|output]\n");
-			return(0);
-		}
-		printf("%s: invalid encryption mode 'encrypt stop ?' for help\n", mode);
-		return(0);
-	}
-	ret += EncryptStopInput();
-	ret += EncryptStopOutput();
-	return(ret);
-}
-
-int
-EncryptStopInput(void)
-{
-	encrypt_send_request_end();
-	return(1);
-}
-
-int
-EncryptStopOutput(void)
-{
-	encrypt_send_end();
-	return(1);
-}
-
-void
-encrypt_display(void)
-{
-	if (encrypt_output)
-		printf("Currently encrypting output with %s\r\n",
-			ENCTYPE_NAME(encrypt_mode));
-	if (decrypt_input)
-		printf("Currently decrypting input with %s\r\n",
-			ENCTYPE_NAME(decrypt_mode));
-}
-
-int
-EncryptStatus(void)
-{
-	if (encrypt_output)
-		printf("Currently encrypting output with %s\r\n",
-			ENCTYPE_NAME(encrypt_mode));
-	else if (encrypt_mode) {
-		printf("Currently output is clear text.\r\n");
-		printf("Last encryption mode was %s\r\n",
-			ENCTYPE_NAME(encrypt_mode));
-	}
-	if (decrypt_input) {
-		printf("Currently decrypting input with %s\r\n",
-			ENCTYPE_NAME(decrypt_mode));
-	} else if (decrypt_mode) {
-		printf("Currently input is clear text.\r\n");
-		printf("Last decryption mode was %s\r\n",
-			ENCTYPE_NAME(decrypt_mode));
-	}
-	return 1;
-}
-
-void
-encrypt_send_support(void)
-{
-	if (str_suplen) {
-		/*
-		 * If the user has requested that decryption start
-		 * immediatly, then send a "REQUEST START" before
-		 * we negotiate the type.
-		 */
-		if (!Server && autodecrypt)
-			encrypt_send_request_start();
-		net_write(str_send, str_suplen);
-		printsub('>', &str_send[2], str_suplen - 2);
-		str_suplen = 0;
-	}
-}
-
-int
-EncryptDebug(int on)
-{
-	if (on < 0)
-		encrypt_debug_mode ^= 1;
-	else
-		encrypt_debug_mode = on;
-	printf("Encryption debugging %s\r\n",
-		encrypt_debug_mode ? "enabled" : "disabled");
-	return(1);
-}
-
-int
-EncryptVerbose(int on)
-{
-	if (on < 0)
-		encrypt_verbose ^= 1;
-	else
-		encrypt_verbose = on;
-	printf("Encryption %s verbose\r\n",
-		encrypt_verbose ? "is" : "is not");
-	return(1);
-}
-
-int
-EncryptAutoEnc(int on)
-{
-	encrypt_auto(on);
-	printf("Automatic encryption of output is %s\r\n",
-		autoencrypt ? "enabled" : "disabled");
-	return(1);
-}
-
-int
-EncryptAutoDec(int on)
-{
-	decrypt_auto(on);
-	printf("Automatic decryption of input is %s\r\n",
-		autodecrypt ? "enabled" : "disabled");
-	return(1);
-}
-
-/*
- * Called when ENCRYPT SUPPORT is received.
- */
-void
-encrypt_support(unsigned char *typelist, int cnt)
-{
-	int type, use_type = 0;
-	Encryptions *ep;
-
-	/*
-	 * Forget anything the other side has previously told us.
-	 */
-	remote_supports_decrypt = 0;
-
-	while (cnt-- > 0) {
-		type = *typelist++;
-		if (encrypt_debug_mode)
-			printf(">>>%s: He is supporting %s (%d)\r\n",
-				Name,
-				ENCTYPE_NAME(type), type);
-		if ((type < ENCTYPE_CNT) &&
-		    (I_SUPPORT_ENCRYPT & typemask(type))) {
-			remote_supports_decrypt |= typemask(type);
-			if (use_type == 0)
-				use_type = type;
-		}
-	}
-	if (use_type) {
-		ep = findencryption(use_type);
-		if (!ep)
-			return;
-		type = ep->start ? (*ep->start)(DIR_ENCRYPT, Server) : 0;
-		if (encrypt_debug_mode)
-			printf(">>>%s: (*ep->start)() returned %d\r\n",
-					Name, type);
-		if (type < 0)
-			return;
-		encrypt_mode = use_type;
-		if (type == 0)
-			encrypt_start_output(use_type);
-	}
-}
-
-void
-encrypt_is(unsigned char *data, int cnt)
-{
-	Encryptions *ep;
-	int type, ret;
-
-	if (--cnt < 0)
-		return;
-	type = *data++;
-	if (type < ENCTYPE_CNT)
-		remote_supports_encrypt |= typemask(type);
-	if (!(ep = finddecryption(type))) {
-		if (encrypt_debug_mode)
-			printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n",
-				Name,
-				ENCTYPE_NAME_OK(type)
-					? ENCTYPE_NAME(type) : "(unknown)",
-				type);
-		return;
-	}
-	if (!ep->is) {
-		if (encrypt_debug_mode)
-			printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n",
-				Name,
-				ENCTYPE_NAME_OK(type)
-					? ENCTYPE_NAME(type) : "(unknown)",
-				type);
-		ret = 0;
-	} else {
-		ret = (*ep->is)(data, cnt);
-		if (encrypt_debug_mode)
-			printf("(*ep->is)(%p, %d) returned %s(%d)\n", data, cnt,
-				(ret < 0) ? "FAIL " :
-				(ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret);
-	}
-	if (ret < 0) {
-		autodecrypt = 0;
-	} else {
-		decrypt_mode = type;
-		if (ret == 0 && autodecrypt)
-			encrypt_send_request_start();
-	}
-}
-
-void
-encrypt_reply(unsigned char *data, int cnt)
-{
-	Encryptions *ep;
-	int ret, type;
-
-	if (--cnt < 0)
-		return;
-	type = *data++;
-	if (!(ep = findencryption(type))) {
-		if (encrypt_debug_mode)
-			printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n",
-				Name,
-				ENCTYPE_NAME_OK(type)
-					? ENCTYPE_NAME(type) : "(unknown)",
-				type);
-		return;
-	}
-	if (!ep->reply) {
-		if (encrypt_debug_mode)
-			printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n",
-				Name,
-				ENCTYPE_NAME_OK(type)
-					? ENCTYPE_NAME(type) : "(unknown)",
-				type);
-		ret = 0;
-	} else {
-		ret = (*ep->reply)(data, cnt);
-		if (encrypt_debug_mode)
-			printf("(*ep->reply)(%p, %d) returned %s(%d)\n",
-				data, cnt,
-				(ret < 0) ? "FAIL " :
-				(ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret);
-	}
-	if (encrypt_debug_mode)
-		printf(">>>%s: encrypt_reply returned %d\n", Name, ret);
-	if (ret < 0) {
-		autoencrypt = 0;
-	} else {
-		encrypt_mode = type;
-		if (ret == 0 && autoencrypt)
-			encrypt_start_output(type);
-	}
-}
-
-/*
- * Called when a ENCRYPT START command is received.
- */
-void
-encrypt_start(unsigned char *data __unused, int cnt __unused)
-{
-	Encryptions *ep;
-
-	if (!decrypt_mode) {
-		/*
-		 * Something is wrong.  We should not get a START
-		 * command without having already picked our
-		 * decryption scheme.  Send a REQUEST-END to
-		 * attempt to clear the channel...
-		 */
-		printf("%s: Warning, Cannot decrypt input stream!!!\r\n", Name);
-		encrypt_send_request_end();
-		return;
-	}
-
-	if ((ep = finddecryption(decrypt_mode))) {
-		decrypt_input = ep->input;
-		if (encrypt_verbose)
-			printf("[ Input is now decrypted with type %s ]\r\n",
-				ENCTYPE_NAME(decrypt_mode));
-		if (encrypt_debug_mode)
-			printf(">>>%s: Start to decrypt input with type %s\r\n",
-				Name, ENCTYPE_NAME(decrypt_mode));
-	} else {
-		printf("%s: Warning, Cannot decrypt type %s (%d)!!!\r\n",
-				Name,
-				ENCTYPE_NAME_OK(decrypt_mode)
-					? ENCTYPE_NAME(decrypt_mode)
-					: "(unknown)",
-				decrypt_mode);
-		encrypt_send_request_end();
-	}
-}
-
-void
-encrypt_session_key( Session_Key *key, int server)
-{
-	Encryptions *ep = encryptions;
-
-	havesessionkey = 1;
-
-	while (ep->type) {
-		if (ep->session)
-			(*ep->session)(key, server);
-		++ep;
-	}
-}
-
-/*
- * Called when ENCRYPT END is received.
- */
-void
-encrypt_end(void)
-{
-	decrypt_input = 0;
-	if (encrypt_debug_mode)
-		printf(">>>%s: Input is back to clear text\r\n", Name);
-	if (encrypt_verbose)
-		printf("[ Input is now clear text ]\r\n");
-}
-
-/*
- * Called when ENCRYPT REQUEST-END is received.
- */
-void
-encrypt_request_end(void)
-{
-	encrypt_send_end();
-}
-
-/*
- * Called when ENCRYPT REQUEST-START is received.  If we receive
- * this before a type is picked, then that indicates that the
- * other side wants us to start encrypting data as soon as we
- * can.
- */
-void
-encrypt_request_start(unsigned char *data __unused, int cnt __unused)
-{
-	if (encrypt_mode == 0)  {
-		if (Server)
-			autoencrypt = 1;
-		return;
-	}
-	encrypt_start_output(encrypt_mode);
-}
-
-static unsigned char str_keyid[(MAXKEYLEN*2)+5] = { IAC, SB, TELOPT_ENCRYPT };
-
-void
-encrypt_enc_keyid(unsigned char *keyid, int len)
-{
-	encrypt_keyid(&ki[1], keyid, len);
-}
-
-void
-encrypt_dec_keyid(unsigned char *keyid, int len)
-{
-	encrypt_keyid(&ki[0], keyid, len);
-}
-
-void
-encrypt_keyid(struct key_info *kp, unsigned char *keyid, int len)
-{
-	Encryptions *ep;
-	int dir = kp->dir;
-	int ret = 0;
-
-	if (!(ep = (*kp->getcrypt)(*kp->modep))) {
-		if (len == 0)
-			return;
-		kp->keylen = 0;
-	} else if (len == 0) {
-		/*
-		 * Empty option, indicates a failure.
-		 */
-		if (kp->keylen == 0)
-			return;
-		kp->keylen = 0;
-		if (ep->keyid)
-			(void)(*ep->keyid)(dir, kp->keyid, &kp->keylen);
-
-	} else if ((len != kp->keylen) ||
-		   (memcmp(keyid, kp->keyid, len) != 0)) {
-		/*
-		 * Length or contents are different
-		 */
-		kp->keylen = len;
-		memmove(kp->keyid, keyid, len);
-		if (ep->keyid)
-			(void)(*ep->keyid)(dir, kp->keyid, &kp->keylen);
-	} else {
-		if (ep->keyid)
-			ret = (*ep->keyid)(dir, kp->keyid, &kp->keylen);
-		if ((ret == 0) && (dir == DIR_ENCRYPT) && autoencrypt)
-			encrypt_start_output(*kp->modep);
-		return;
-	}
-
-	encrypt_send_keyid(dir, kp->keyid, kp->keylen, 0);
-}
-
-void
-encrypt_send_keyid(int dir, const char *keyid, int keylen, int saveit)
-{
-	unsigned char *strp;
-
-	str_keyid[3] = (dir == DIR_ENCRYPT)
-			? ENCRYPT_ENC_KEYID : ENCRYPT_DEC_KEYID;
-	if (saveit) {
-		struct key_info *kp = &ki[(dir == DIR_ENCRYPT) ? 0 : 1];
-		memmove(kp->keyid, keyid, keylen);
-		kp->keylen = keylen;
-	}
-
-	for (strp = &str_keyid[4]; keylen > 0; --keylen) {
-		if ((*strp++ = *keyid++) == IAC)
-			*strp++ = IAC;
-	}
-	*strp++ = IAC;
-	*strp++ = SE;
-	net_write(str_keyid, strp - str_keyid);
-	printsub('>', &str_keyid[2], strp - str_keyid - 2);
-}
-
-void
-encrypt_auto(int on)
-{
-	if (on < 0)
-		autoencrypt ^= 1;
-	else
-		autoencrypt = on ? 1 : 0;
-}
-
-void
-decrypt_auto(int on)
-{
-	if (on < 0)
-		autodecrypt ^= 1;
-	else
-		autodecrypt = on ? 1 : 0;
-}
-
-void
-encrypt_start_output(int type)
-{
-	Encryptions *ep;
-	unsigned char *p;
-	int i;
-
-	if (!(ep = findencryption(type))) {
-		if (encrypt_debug_mode) {
-			printf(">>>%s: Can't encrypt with type %s (%d)\r\n",
-				Name,
-				ENCTYPE_NAME_OK(type)
-					? ENCTYPE_NAME(type) : "(unknown)",
-				type);
-		}
-		return;
-	}
-	if (ep->start) {
-		i = (*ep->start)(DIR_ENCRYPT, Server);
-		if (encrypt_debug_mode) {
-			printf(">>>%s: Encrypt start: %s (%d) %s\r\n",
-				Name,
-				(i < 0) ? "failed" :
-					"initial negotiation in progress",
-				i, ENCTYPE_NAME(type));
-		}
-		if (i)
-			return;
-	}
-	p = str_start + 3;
-	*p++ = ENCRYPT_START;
-	for (i = 0; i < ki[0].keylen; ++i) {
-		if ((*p++ = ki[0].keyid[i]) == IAC)
-			*p++ = IAC;
-	}
-	*p++ = IAC;
-	*p++ = SE;
-	net_write(str_start, p - str_start);
-	net_encrypt();
-	printsub('>', &str_start[2], p - &str_start[2]);
-	/*
-	 * If we are already encrypting in some mode, then
-	 * encrypt the ring (which includes our request) in
-	 * the old mode, mark it all as "clear text" and then
-	 * switch to the new mode.
-	 */
-	encrypt_output = ep->output;
-	encrypt_mode = type;
-	if (encrypt_debug_mode)
-		printf(">>>%s: Started to encrypt output with type %s\r\n",
-			Name, ENCTYPE_NAME(type));
-	if (encrypt_verbose)
-		printf("[ Output is now encrypted with type %s ]\r\n",
-			ENCTYPE_NAME(type));
-}
-
-void
-encrypt_send_end(void)
-{
-	if (!encrypt_output)
-		return;
-
-	str_end[3] = ENCRYPT_END;
-	net_write(str_end, sizeof(str_end));
-	net_encrypt();
-	printsub('>', &str_end[2], sizeof(str_end) - 2);
-	/*
-	 * Encrypt the output buffer now because it will not be done by
-	 * netflush...
-	 */
-	encrypt_output = 0;
-	if (encrypt_debug_mode)
-		printf(">>>%s: Output is back to clear text\r\n", Name);
-	if (encrypt_verbose)
-		printf("[ Output is now clear text ]\r\n");
-}
-
-void
-encrypt_send_request_start(void)
-{
-	unsigned char *p;
-	int i;
-
-	p = &str_start[3];
-	*p++ = ENCRYPT_REQSTART;
-	for (i = 0; i < ki[1].keylen; ++i) {
-		if ((*p++ = ki[1].keyid[i]) == IAC)
-			*p++ = IAC;
-	}
-	*p++ = IAC;
-	*p++ = SE;
-	net_write(str_start, p - str_start);
-	printsub('>', &str_start[2], p - &str_start[2]);
-	if (encrypt_debug_mode)
-		printf(">>>%s: Request input to be encrypted\r\n", Name);
-}
-
-void
-encrypt_send_request_end(void)
-{
-	str_end[3] = ENCRYPT_REQEND;
-	net_write(str_end, sizeof(str_end));
-	printsub('>', &str_end[2], sizeof(str_end) - 2);
-
-	if (encrypt_debug_mode)
-		printf(">>>%s: Request input to be clear text\r\n", Name);
-}
-
-void
-encrypt_wait(void)
-{
-	if (encrypt_debug_mode)
-		printf(">>>%s: in encrypt_wait\r\n", Name);
-	if (!havesessionkey || !(I_SUPPORT_ENCRYPT & remote_supports_decrypt))
-		return;
-	while (autoencrypt && !encrypt_output)
-		if (telnet_spin())
-			return;
-}
-
-void
-encrypt_gen_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	char tbuf[16], *cp;
-
-	cnt -= 2;
-	data += 2;
-	buf[buflen-1] = '\0';
-	buf[buflen-2] = '*';
-	buflen -= 2;;
-	for (; cnt > 0; cnt--, data++) {
-		sprintf(tbuf, " %d", *data);
-		for (cp = tbuf; *cp && buflen > 0; --buflen)
-			*buf++ = *cp++;
-		if (buflen <= 0)
-			return;
-	}
-	*buf = '\0';
-}
-
-void
-encrypt_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	Encryptions *ep;
-	int type = data[1];
-
-	for (ep = encryptions; ep->type && ep->type != type; ep++)
-		;
-
-	if (ep->printsub)
-		(*ep->printsub)(data, cnt, buf, buflen);
-	else
-		encrypt_gen_printsub(data, cnt, buf, buflen);
-}
-#endif	/* ENCRYPTION */
diff --git a/crypto/telnet/libtelnet/encrypt.h b/crypto/telnet/libtelnet/encrypt.h
deleted file mode 100644
index eda8d57e0328..000000000000
--- a/crypto/telnet/libtelnet/encrypt.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)encrypt.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifdef	ENCRYPTION
-# ifndef __ENCRYPTION__
-# define __ENCRYPTION__
-
-#define	DIR_DECRYPT		1
-#define	DIR_ENCRYPT		2
-
-#include <openssl/des.h>
-typedef	unsigned char Block[8];
-typedef unsigned char *BlockT;
-#if 0
-typedef struct { Block __; } Schedule[16];
-#else
-#define Schedule des_key_schedule
-#endif
-
-#define	VALIDKEY(key)	( key[0] | key[1] | key[2] | key[3] | \
-			  key[4] | key[5] | key[6] | key[7])
-
-#define	SAMEKEY(k1, k2)	(!bcmp((void *)k1, (void *)k2, sizeof(Block)))
-
-typedef	struct {
-	short		type;
-	int		length;
-	unsigned char	*data;
-} Session_Key;
-
-typedef struct {
-	const char *name;
-	int	type;
-	void	(*output)(unsigned char *, int);
-	int	(*input)(int);
-	void	(*init)(int);
-	int	(*start)(int, int);
-	int	(*is)(unsigned char *, int);
-	int	(*reply)(unsigned char *, int);
-	void	(*session)(Session_Key *, int);
-	int	(*keyid)(int, unsigned char *, int *);
-	void	(*printsub)(unsigned char *, int, unsigned char *, int);
-} Encryptions;
-
-#define	SK_DES		1	/* Matched Kerberos v5 KEYTYPE_DES */
-
-#include "enc-proto.h"
-
-extern int encrypt_debug_mode;
-extern int (*decrypt_input)(int);
-extern void (*encrypt_output)(unsigned char *, int);
-# endif /* __ENCRYPTION__ */
-#endif /* ENCRYPTION */
diff --git a/crypto/telnet/libtelnet/genget.c b/crypto/telnet/libtelnet/genget.c
deleted file mode 100644
index e24bb4458455..000000000000
--- a/crypto/telnet/libtelnet/genget.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static const char sccsid[] = "@(#)genget.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif /* not lint */
-
-
-#include <ctype.h>
-
-#include "misc-proto.h"
-
-#define	LOWER(x) (isupper(x) ? tolower(x) : (x))
-/*
- * The prefix function returns 0 if *s1 is not a prefix
- * of *s2.  If *s1 exactly matches *s2, the negative of
- * the length is returned.  If *s1 is a prefix of *s2,
- * the length of *s1 is returned.
- */
-int
-isprefix(char *s1, const char *s2)
-{
-	char *os1;
-	char c1, c2;
-
-	if (*s1 == '\0')
-		return(-1);
-	os1 = s1;
-	c1 = *s1;
-	c2 = *s2;
-	while (LOWER(c1) == LOWER(c2)) {
-		if (c1 == '\0')
-			break;
-		c1 = *++s1;
-		c2 = *++s2;
-	}
-	return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1)));
-}
-
-static char *ambiguous;		/* special return value for command routines */
-
-char **
-genget(char *name, char **table, int stlen)
-{
-	char **c, **found;
-	int n;
-
-	if (name == 0)
-	    return 0;
-
-	found = 0;
-	for (c = table; *c != 0; c = (char **)((char *)c + stlen)) {
-		if ((n = isprefix(name, *c)) == 0)
-			continue;
-		if (n < 0)		/* exact match */
-			return(c);
-		if (found)
-			return(&ambiguous);
-		found = c;
-	}
-	return(found);
-}
-
-/*
- * Function call version of Ambiguous()
- */
-int
-Ambiguous(char **s)
-{
-	return(s == &ambiguous);
-}
diff --git a/crypto/telnet/libtelnet/getent.c b/crypto/telnet/libtelnet/getent.c
deleted file mode 100644
index d6e8d9c88475..000000000000
--- a/crypto/telnet/libtelnet/getent.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)getent.c	8.2 (Berkeley) 12/15/93";
-#endif
-#endif /* not lint */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "misc-proto.h"
-
-static char *area;
-static char gettytab[] = "/etc/gettytab";
-
-/*ARGSUSED*/
-int
-getent(char *cp __unused, const char *name)
-{
-	int retval;
-	char *tempnam, *dba[2] = { gettytab, NULL };
-
-	tempnam = strdup(name);
-	retval =  cgetent(&area, dba, tempnam) == 0 ? 1 : 0;
-	free(tempnam);
-	return(retval);
-}
-
-/*ARGSUSED*/
-char *
-Getstr(const char *id, char **cpp __unused)
-{
-	int retval;
-	char *answer, *tempid;
-
-	tempid = strdup(id);
-	retval = cgetstr(area, tempid, &answer);
-	free(tempid);
-	return((retval > 0) ? answer : NULL);
-}
diff --git a/crypto/telnet/libtelnet/kerberos.c b/crypto/telnet/libtelnet/kerberos.c
deleted file mode 100644
index 2380c27daa5e..000000000000
--- a/crypto/telnet/libtelnet/kerberos.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-static const char sccsid[] = "@(#)kerberos.c	8.3 (Berkeley) 5/30/95";
-#endif /* not lint */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifdef	KRB4
-#include <sys/types.h>
-#include <arpa/telnet.h>
-#include <openssl/des.h>	/* BSD wont include this in krb.h, so we do it here */
-#include <krb.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "encrypt.h"
-#include "auth.h"
-#include "misc.h"
-
-int kerberos4_cksum(unsigned char *, int);
-int kuserok(AUTH_DAT *, char *);
-
-extern int auth_debug_mode;
-
-static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
-			  		AUTHTYPE_KERBEROS_V4, };
-
-#define	KRB_AUTH	0		/* Authentication data follows */
-#define	KRB_REJECT	1		/* Rejected (reason might follow) */
-#define	KRB_ACCEPT	2		/* Accepted */
-#define	KRB_CHALLENGE	3		/* Challenge for mutual auth. */
-#define	KRB_RESPONSE	4		/* Response for mutual auth. */
-
-static	KTEXT_ST auth;
-static	char name[ANAME_SZ];
-static	AUTH_DAT adat = { 0, "", "", "", 0, {}, 0, 0, 0, { 0, "", 0 } };
-#ifdef	ENCRYPTION
-static Block	session_key	= { 0 };
-static des_key_schedule sched;
-static Block	challenge	= { 0 };
-#endif	/* ENCRYPTION */
-
-static char krb_service_name[] = "rcmd";
-static char empty[] = "";
-
-static int
-Data(Authenticator *ap, int type, const unsigned char *d, int c)
-{
-	unsigned char *p = str_data + 4;
-	const unsigned char *cd = d;
-
-	if (c == -1)
-		c = strlen(cd);
-
-	if (auth_debug_mode) {
-		printf("%s:%d: [%d] (%d)",
-			str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY",
-			str_data[3],
-			type, c);
-		printd(d, c);
-		printf("\r\n");
-	}
-	*p++ = ap->type;
-	*p++ = ap->way;
-	*p++ = type;
-	while (c-- > 0) {
-		if ((*p++ = *cd++) == IAC)
-			*p++ = IAC;
-	}
-	*p++ = IAC;
-	*p++ = SE;
-	if (str_data[3] == TELQUAL_IS)
-		printsub('>', &str_data[2], p - (&str_data[2]));
-	return(net_write(str_data, p - str_data));
-}
-
-int
-kerberos4_init(Authenticator *ap __unused, int server)
-{
-	FILE *fp;
-
-	if (server) {
-		str_data[3] = TELQUAL_REPLY;
-		if ((fp = fopen(KEYFILE, "r")) == NULL)
-			return(0);
-		fclose(fp);
-	} else {
-		str_data[3] = TELQUAL_IS;
-	}
-	return(1);
-}
-
-char dst_realm_buf[REALM_SZ], *dest_realm = NULL;
-int dst_realm_sz = REALM_SZ;
-
-int
-kerberos4_send(Authenticator *ap)
-{
-	KTEXT_ST lauth;
-	char instance[INST_SZ];
-	char *realm;
-	CREDENTIALS cred;
-	int r;
-
-	printf("[ Trying KERBEROS4 ... ]\n");
-	if (!UserNameRequested) {
-		if (auth_debug_mode) {
-			printf("Kerberos V4: no user name supplied\r\n");
-		}
-		return(0);
-	}
-
-	memset(instance, 0, sizeof(instance));
-
-	if ((realm = krb_get_phost(RemoteHostName)))
-		strncpy(instance, realm, sizeof(instance));
-
-	instance[sizeof(instance)-1] = '\0';
-
-	realm = dest_realm ? dest_realm : krb_realmofhost(RemoteHostName);
-
-	if (!realm) {
-		printf("Kerberos V4: no realm for %s\r\n", RemoteHostName);
-		return(0);
-	}
-	if ((r = krb_mk_req(&lauth, krb_service_name, instance, realm, 0L))) {
-		printf("mk_req failed: %s\r\n", krb_err_txt[r]);
-		return(0);
-	}
-	if ((r = krb_get_cred(krb_service_name, instance, realm, &cred))) {
-		printf("get_cred failed: %s\r\n", krb_err_txt[r]);
-		return(0);
-	}
-	if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) {
-		if (auth_debug_mode)
-			printf("Not enough room for user name\r\n");
-		return(0);
-	}
-	if (auth_debug_mode)
-		printf("Sent %d bytes of authentication data\r\n", lauth.length);
-	if (!Data(ap, KRB_AUTH, (void *)lauth.dat, lauth.length)) {
-		if (auth_debug_mode)
-			printf("Not enough room for authentication data\r\n");
-		return(0);
-	}
-#ifdef	ENCRYPTION
-	/*
-	 * If we are doing mutual authentication, get set up to send
-	 * the challenge, and verify it when the response comes back.
-	 */
-	if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
-		register int i;
-
-		des_key_sched(&cred.session, sched);
-		des_random_key(&session_key);
-		des_ecb_encrypt(&session_key, &session_key, sched, 0);
-		des_ecb_encrypt(&session_key, &challenge, sched, 0);
-		/*
-		 * Increment the challenge by 1, and encrypt it for
-		 * later comparison.
-		 */
-		for (i = 7; i >= 0; --i) {
-			register int x;
-			x = (unsigned int)challenge[i] + 1;
-			challenge[i] = x;	/* ignore overflow */
-			if (x < 256)		/* if no overflow, all done */
-				break;
-		}
-		des_ecb_encrypt(&challenge, &challenge, sched, 1);
-	}
-#endif	/* ENCRYPTION */
-
-	if (auth_debug_mode) {
-		printf("CK: %d:", kerberos4_cksum(lauth.dat, lauth.length));
-		printd(lauth.dat, lauth.length);
-		printf("\r\n");
-		printf("Sent Kerberos V4 credentials to server\r\n");
-	}
-	return(1);
-}
-
-void
-kerberos4_is(Authenticator *ap, unsigned char *data, int cnt)
-{
-#ifdef	ENCRYPTION
-	Session_Key skey;
-	Block datablock;
-#endif	/* ENCRYPTION */
-	char realm[REALM_SZ];
-	char instance[INST_SZ];
-	int r;
-
-	if (cnt-- < 1)
-		return;
-	switch (*data++) {
-	case KRB_AUTH:
-		if (krb_get_lrealm(realm, 1) != KSUCCESS) {
-			Data(ap, KRB_REJECT, "No local V4 Realm.", -1);
-			auth_finished(ap, AUTH_REJECT);
-			if (auth_debug_mode)
-				printf("No local realm\r\n");
-			return;
-		}
-		memmove((void *)auth.dat, (void *)data, auth.length = cnt);
-		if (auth_debug_mode) {
-			printf("Got %d bytes of authentication data\r\n", cnt);
-			printf("CK: %d:", kerberos4_cksum(auth.dat, auth.length));
-			printd(auth.dat, auth.length);
-			printf("\r\n");
-		}
-		instance[0] = '*'; instance[1] = 0;
-		if ((r = krb_rd_req(&auth, krb_service_name,
-				   instance, 0, &adat, empty))) {
-			if (auth_debug_mode)
-				printf("Kerberos failed him as %s\r\n", name);
-			Data(ap, KRB_REJECT, krb_err_txt[r], -1);
-			auth_finished(ap, AUTH_REJECT);
-			return;
-		}
-#ifdef	ENCRYPTION
-		memmove((void *)session_key, (void *)adat.session, sizeof(Block));
-#endif	/* ENCRYPTION */
-		krb_kntoln(&adat, name);
-
-		if (UserNameRequested && !kuserok(&adat, UserNameRequested))
-			Data(ap, KRB_ACCEPT, NULL, 0);
-		else
-			Data(ap, KRB_REJECT, "user is not authorized", -1);
-		auth_finished(ap, AUTH_USER);
-		break;
-
-	case KRB_CHALLENGE:
-#ifndef	ENCRYPTION
-		Data(ap, KRB_RESPONSE, NULL, 0);
-#else	/* ENCRYPTION */
-		if (!VALIDKEY(session_key)) {
-			/*
-			 * We don't have a valid session key, so just
-			 * send back a response with an empty session
-			 * key.
-			 */
-			Data(ap, KRB_RESPONSE, NULL, 0);
-			break;
-		}
-
-		des_key_sched(&session_key, sched);
-		memmove((void *)datablock, (void *)data, sizeof(Block));
-		/*
-		 * Take the received encrypted challenge, and encrypt
-		 * it again to get a unique session_key for the
-		 * ENCRYPT option.
-		 */
-		des_ecb_encrypt(&datablock, &session_key, sched, 1);
-		skey.type = SK_DES;
-		skey.length = 8;
-		skey.data = session_key;
-		encrypt_session_key(&skey, 1);
-		/*
-		 * Now decrypt the received encrypted challenge,
-		 * increment by one, re-encrypt it and send it back.
-		 */
-		des_ecb_encrypt(&datablock, &challenge, sched, 0);
-		for (r = 7; r >= 0; r--) {
-			register int t;
-			t = (unsigned int)challenge[r] + 1;
-			challenge[r] = t;	/* ignore overflow */
-			if (t < 256)		/* if no overflow, all done */
-				break;
-		}
-		des_ecb_encrypt(&challenge, &challenge, sched, 1);
-		Data(ap, KRB_RESPONSE, challenge, sizeof(challenge));
-#endif	/* ENCRYPTION */
-		break;
-
-	default:
-		if (auth_debug_mode)
-			printf("Unknown Kerberos option %d\r\n", data[-1]);
-		Data(ap, KRB_REJECT, NULL, 0);
-		break;
-	}
-}
-
-void
-kerberos4_reply(Authenticator *ap, unsigned char *data, int cnt)
-{
-#ifdef	ENCRYPTION
-	Session_Key skey;
-#endif	/* ENCRYPTION */
-
-	if (cnt-- < 1)
-		return;
-	switch (*data++) {
-	case KRB_REJECT:
-		if (cnt > 0) {
-			printf("[ Kerberos V4 refuses authentication because %.*s ]\r\n",
-				cnt, data);
-		} else
-			printf("[ Kerberos V4 refuses authentication ]\r\n");
-		auth_send_retry();
-		return;
-	case KRB_ACCEPT:
-		printf("[ Kerberos V4 accepts you ]\n");
-		if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
-			/*
-			 * Send over the encrypted challenge.
-		 	 */
-#ifndef	ENCRYPTION
-			Data(ap, KRB_CHALLENGE, NULL, 0);
-#else	/* ENCRYPTION */
-			Data(ap, KRB_CHALLENGE, session_key,
-						sizeof(session_key));
-			des_ecb_encrypt(&session_key, &session_key, sched, 1);
-			skey.type = SK_DES;
-			skey.length = 8;
-			skey.data = session_key;
-			encrypt_session_key(&skey, 0);
-#endif	/* ENCRYPTION */
-			return;
-		}
-		auth_finished(ap, AUTH_USER);
-		return;
-	case KRB_RESPONSE:
-#ifdef	ENCRYPTION
-		/*
-		 * Verify that the response to the challenge is correct.
-		 */
-		if ((cnt != sizeof(Block)) ||
-		    (0 != memcmp((void *)data, (void *)challenge,
-						sizeof(challenge))))
-		{
-#endif	/* ENCRYPTION */
-			printf("[ Kerberos V4 challenge failed!!! ]\r\n");
-			auth_send_retry();
-			return;
-#ifdef	ENCRYPTION
-		}
-		printf("[ Kerberos V4 challenge successful ]\r\n");
-		auth_finished(ap, AUTH_USER);
-#endif	/* ENCRYPTION */
-		break;
-	default:
-		if (auth_debug_mode)
-			printf("Unknown Kerberos option %d\r\n", data[-1]);
-		return;
-	}
-}
-
-int
-kerberos4_status(Authenticator *ap __unused, char *nam, int level)
-{
-	if (level < AUTH_USER)
-		return(level);
-
-	if (UserNameRequested && !kuserok(&adat, UserNameRequested)) {
-		strcpy(nam, UserNameRequested);
-		return(AUTH_VALID);
-	} else
-		return(AUTH_USER);
-}
-
-#define	BUMP(buf, len)		while (*(buf)) {++(buf), --(len);}
-#define	ADDC(buf, len, c)	if ((len) > 0) {*(buf)++ = (c); --(len);}
-
-void
-kerberos4_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	char lbuf[32];
-	register int i;
-
-	buf[buflen-1] = '\0';		/* make sure its NULL terminated */
-	buflen -= 1;
-
-	switch(data[3]) {
-	case KRB_REJECT:		/* Rejected (reason might follow) */
-		strncpy((char *)buf, " REJECT ", buflen);
-		goto common;
-
-	case KRB_ACCEPT:		/* Accepted (name might follow) */
-		strncpy((char *)buf, " ACCEPT ", buflen);
-	common:
-		BUMP(buf, buflen);
-		if (cnt <= 4)
-			break;
-		ADDC(buf, buflen, '"');
-		for (i = 4; i < cnt; i++)
-			ADDC(buf, buflen, data[i]);
-		ADDC(buf, buflen, '"');
-		ADDC(buf, buflen, '\0');
-		break;
-
-	case KRB_AUTH:			/* Authentication data follows */
-		strncpy((char *)buf, " AUTH", buflen);
-		goto common2;
-
-	case KRB_CHALLENGE:
-		strncpy((char *)buf, " CHALLENGE", buflen);
-		goto common2;
-
-	case KRB_RESPONSE:
-		strncpy((char *)buf, " RESPONSE", buflen);
-		goto common2;
-
-	default:
-		sprintf(lbuf, " %d (unknown)", data[3]);
-		strncpy((char *)buf, lbuf, buflen);
-	common2:
-		BUMP(buf, buflen);
-		for (i = 4; i < cnt; i++) {
-			sprintf(lbuf, " %d", data[i]);
-			strncpy((char *)buf, lbuf, buflen);
-			BUMP(buf, buflen);
-		}
-		break;
-	}
-}
-
-int
-kerberos4_cksum(unsigned char *d, int n)
-{
-	int ck = 0;
-
-	/*
-	 * A comment is probably needed here for those not
-	 * well versed in the "C" language.  Yes, this is
-	 * supposed to be a "switch" with the body of the
-	 * "switch" being a "while" statement.  The whole
-	 * purpose of the switch is to allow us to jump into
-	 * the middle of the while() loop, and then not have
-	 * to do any more switch()s.
-	 *
-	 * Some compilers will spit out a warning message
-	 * about the loop not being entered at the top.
-	 */
-	switch (n&03)
-	while (n > 0) {
-	case 0:
-		ck ^= (int)*d++ << 24;
-		--n;
-	case 3:
-		ck ^= (int)*d++ << 16;
-		--n;
-	case 2:
-		ck ^= (int)*d++ << 8;
-		--n;
-	case 1:
-		ck ^= (int)*d++;
-		--n;
-	}
-	return(ck);
-}
-#endif
diff --git a/crypto/telnet/libtelnet/kerberos5.c b/crypto/telnet/libtelnet/kerberos5.c
deleted file mode 100644
index ab7b2dce47b8..000000000000
--- a/crypto/telnet/libtelnet/kerberos5.c
+++ /dev/null
@@ -1,825 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America may
- * require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifdef	KRB5
-
-#include <arpa/telnet.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <netdb.h>
-#include <ctype.h>
-#include <pwd.h>
-#define Authenticator k5_Authenticator
-#include <krb5.h>
-#undef Authenticator
-
-#include "encrypt.h"
-#include "auth.h"
-#include "misc.h"
-
-int forward_flags = 0;  /* Flags get set in telnet/main.c on -f and -F */
-
-/* These values need to be the same as those defined in telnet/main.c. */
-/* Either define them in both places, or put in some common header file. */
-#define OPTS_FORWARD_CREDS	0x00000002
-#define OPTS_FORWARDABLE_CREDS	0x00000001
-
-void kerberos5_forward (Authenticator *);
-
-static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
-			  		AUTHTYPE_KERBEROS_V5, };
-
-#define	KRB_AUTH		0	/* Authentication data follows */
-#define	KRB_REJECT		1	/* Rejected (reason might follow) */
-#define	KRB_ACCEPT		2	/* Accepted */
-#define	KRB_RESPONSE		3	/* Response for mutual auth. */
-
-#define KRB_FORWARD     	4       /* Forwarded credentials follow */
-#define KRB_FORWARD_ACCEPT     	5       /* Forwarded credentials accepted */
-#define KRB_FORWARD_REJECT     	6       /* Forwarded credentials rejected */
-
-static	krb5_data auth;
-static  krb5_ticket *ticket;
-
-static krb5_context context;
-static krb5_auth_context auth_context;
-
-static int
-Data(Authenticator *ap, int type, const char *d, int c)
-{
-    unsigned char *p = str_data + 4;
-    const unsigned char *cd = d;
-
-    if (c == -1)
-	c = strlen(cd);
-
-    if (auth_debug_mode) {
-	printf("%s:%d: [%d] (%d)",
-	       str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY",
-	       str_data[3],
-	       type, c);
-	printd(d, c);
-	printf("\r\n");
-    }
-    *p++ = ap->type;
-    *p++ = ap->way;
-    *p++ = type;
-    while (c-- > 0) {
-	if ((*p++ = *cd++) == IAC)
-	    *p++ = IAC;
-    }
-    *p++ = IAC;
-    *p++ = SE;
-    if (str_data[3] == TELQUAL_IS)
-	printsub('>', &str_data[2], p - &str_data[2]);
-    return(net_write(str_data, p - str_data));
-}
-
-int
-kerberos5_init(Authenticator *ap __unused, int server)
-{
-    krb5_error_code ret;
-
-    ret = krb5_init_context(&context);
-    if (ret)
-	return 0;
-    if (server) {
-	krb5_keytab kt;
-	krb5_kt_cursor cursor;
-
-	ret = krb5_kt_default(context, &kt);
-	if (ret)
-	    return 0;
-
-	ret = krb5_kt_start_seq_get (context, kt, &cursor);
-	if (ret) {
-	    krb5_kt_close (context, kt);
-	    return 0;
-	}
-	krb5_kt_end_seq_get (context, kt, &cursor);
-	krb5_kt_close (context, kt);
-
-	str_data[3] = TELQUAL_REPLY;
-    } else
-	str_data[3] = TELQUAL_IS;
-    return(1);
-}
-
-extern int net;
-
-static int
-kerberos5_send(const char *name, Authenticator *ap)
-{
-    krb5_error_code ret;
-    krb5_ccache ccache;
-    int ap_opts;
-    krb5_data cksum_data;
-    char foo[2];
-    
-    if (!UserNameRequested) {
-	if (auth_debug_mode) {
-	    printf("Kerberos V5: no user name supplied\r\n");
-	}
-	return(0);
-    }
-    
-    ret = krb5_cc_default(context, &ccache);
-    if (ret) {
-	if (auth_debug_mode) {
-	    printf("Kerberos V5: could not get default ccache: %s\r\n",
-		   krb5_get_err_text (context, ret));
-	}
-	return 0;
-    }
-	
-    if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL)
-	ap_opts = AP_OPTS_MUTUAL_REQUIRED;
-    else
-	ap_opts = 0;
-    ap_opts |= AP_OPTS_USE_SUBKEY;
-    
-    ret = krb5_auth_con_init (context, &auth_context);
-    if (ret) {
-	if (auth_debug_mode) {
-	    printf("Kerberos V5: krb5_auth_con_init failed (%s)\r\n",
-		   krb5_get_err_text(context, ret));
-	}
-	return(0);
-    }
-
-    ret = krb5_auth_con_setaddrs_from_fd (context,
-					  auth_context,
-					  &net);
-    if (ret) {
-	if (auth_debug_mode) {
-	    printf ("Kerberos V5:"
-		    " krb5_auth_con_setaddrs_from_fd failed (%s)\r\n",
-		    krb5_get_err_text(context, ret));
-	}
-	return(0);
-    }
-
-    krb5_auth_con_setkeytype (context, auth_context, KEYTYPE_DES);
-
-    foo[0] = ap->type;
-    foo[1] = ap->way;
-
-    cksum_data.length = sizeof(foo);
-    cksum_data.data   = foo;
-
-
-    {
-	krb5_principal service;
-	char sname[128];
-
-
-	ret = krb5_sname_to_principal (context,
-				       RemoteHostName,
-				       NULL,
-				       KRB5_NT_SRV_HST,
-				       &service);
-	if(ret) {
-	    if (auth_debug_mode) {
-		printf ("Kerberos V5:"
-			" krb5_sname_to_principal(%s) failed (%s)\r\n",
-			RemoteHostName, krb5_get_err_text(context, ret));
-	    }
-	    return 0;
-	}
-	ret = krb5_unparse_name_fixed(context, service, sname, sizeof(sname));
-	if(ret) {
-	    if (auth_debug_mode) {
-		printf ("Kerberos V5:"
-			" krb5_unparse_name_fixed failed (%s)\r\n",
-			krb5_get_err_text(context, ret));
-	    }
-	    return 0;
-	}
-	printf("[ Trying %s (%s)... ]\r\n", name, sname);
-	ret = krb5_mk_req_exact(context, &auth_context, ap_opts,
-				service, 
-				&cksum_data, ccache, &auth);
-	krb5_free_principal (context, service);
-
-    }
-    if (ret) {
-	if (1 || auth_debug_mode) {
-	    printf("Kerberos V5: mk_req failed (%s)\r\n",
-		   krb5_get_err_text(context, ret));
-	}
-	return(0);
-    }
-
-    if (!auth_sendname((unsigned char *)UserNameRequested,
-		       strlen(UserNameRequested))) {
-	if (auth_debug_mode)
-	    printf("Not enough room for user name\r\n");
-	return(0);
-    }
-    if (!Data(ap, KRB_AUTH, auth.data, auth.length)) {
-	if (auth_debug_mode)
-	    printf("Not enough room for authentication data\r\n");
-	return(0);
-    }
-    if (auth_debug_mode) {
-	printf("Sent Kerberos V5 credentials to server\r\n");
-    }
-    return(1);
-}
-
-int
-kerberos5_send_mutual(Authenticator *ap)
-{
-    return kerberos5_send("mutual KERBEROS5", ap);
-}
-
-int
-kerberos5_send_oneway(Authenticator *ap)
-{
-    return kerberos5_send("KERBEROS5", ap);
-}
-
-void
-kerberos5_is(Authenticator *ap, unsigned char *data, int cnt)
-{
-    krb5_error_code ret;
-    krb5_data outbuf;
-    krb5_keyblock *key_block;
-    char *name;
-    krb5_principal server;
-    int zero = 0;
-
-    if (cnt-- < 1)
-	return;
-    switch (*data++) {
-    case KRB_AUTH:
-	auth.data = (char *)data;
-	auth.length = cnt;
-
-	auth_context = NULL;
-
-	ret = krb5_auth_con_init (context, &auth_context);
-	if (ret) {
-	    Data(ap, KRB_REJECT, "krb5_auth_con_init failed", -1);
-	    auth_finished(ap, AUTH_REJECT);
-	    if (auth_debug_mode)
-		printf("Kerberos V5: krb5_auth_con_init failed (%s)\r\n",
-		       krb5_get_err_text(context, ret));
-	    return;
-	}
-
-	ret = krb5_auth_con_setaddrs_from_fd (context,
-					      auth_context,
-					      &zero);
-	if (ret) {
-	    Data(ap, KRB_REJECT, "krb5_auth_con_setaddrs_from_fd failed", -1);
-	    auth_finished(ap, AUTH_REJECT);
-	    if (auth_debug_mode)
-		printf("Kerberos V5: "
-		       "krb5_auth_con_setaddrs_from_fd failed (%s)\r\n",
-		       krb5_get_err_text(context, ret));
-	    return;
-	}
-
-	ret = krb5_sock_to_principal (context,
-				      0,
-				      "host",
-				      KRB5_NT_SRV_HST,
-				      &server);
-	if (ret) {
-	    Data(ap, KRB_REJECT, "krb5_sock_to_principal failed", -1);
-	    auth_finished(ap, AUTH_REJECT);
-	    if (auth_debug_mode)
-		printf("Kerberos V5: "
-		       "krb5_sock_to_principal failed (%s)\r\n",
-		       krb5_get_err_text(context, ret));
-	    return;
-	}
-
-	ret = krb5_rd_req(context,
-			  &auth_context,
-			  &auth, 
-			  server,
-			  NULL,
-			  NULL,
-			  &ticket);
-
-	krb5_free_principal (context, server);
-	if (ret) {
-	    char *errbuf;
-
-	    asprintf(&errbuf,
-		     "Read req failed: %s",
-		     krb5_get_err_text(context, ret));
-	    Data(ap, KRB_REJECT, errbuf, -1);
-	    if (auth_debug_mode)
-		printf("%s\r\n", errbuf);
-	    free (errbuf);
-	    return;
-	}
-	
-	{
-	    char foo[2];
-	    
-	    foo[0] = ap->type;
-	    foo[1] = ap->way;
-	    
-	    ret = krb5_verify_authenticator_checksum(context,
-						     auth_context,
-						     foo, 
-						     sizeof(foo));
-
-	    if (ret) {
-		char *errbuf;
-		asprintf(&errbuf, "Bad checksum: %s", 
-			 krb5_get_err_text(context, ret));
-		Data(ap, KRB_REJECT, errbuf, -1);
-		if (auth_debug_mode)
-		    printf ("%s\r\n", errbuf);
-		free(errbuf);
-		return;
-	    }
-	}
-	ret = krb5_auth_con_getremotesubkey (context,
-					     auth_context,
-					     &key_block);
-
-	if (ret) {
-	    Data(ap, KRB_REJECT, "krb5_auth_con_getremotesubkey failed", -1);
-	    auth_finished(ap, AUTH_REJECT);
-	    if (auth_debug_mode)
-		printf("Kerberos V5: "
-		       "krb5_auth_con_getremotesubkey failed (%s)\r\n",
-		       krb5_get_err_text(context, ret));
-	    return;
-	}
-
-	if (key_block == NULL) {
-	    ret = krb5_auth_con_getkey(context,
-				       auth_context,
-				       &key_block);
-	}
-	if (ret) {
-	    Data(ap, KRB_REJECT, "krb5_auth_con_getkey failed", -1);
-	    auth_finished(ap, AUTH_REJECT);
-	    if (auth_debug_mode)
-		printf("Kerberos V5: "
-		       "krb5_auth_con_getkey failed (%s)\r\n",
-		       krb5_get_err_text(context, ret));
-	    return;
-	}
-	if (key_block == NULL) {
-	    Data(ap, KRB_REJECT, "no subkey received", -1);
-	    auth_finished(ap, AUTH_REJECT);
-	    if (auth_debug_mode)
-		printf("Kerberos V5: "
-		       "krb5_auth_con_getremotesubkey returned NULL key\r\n");
-	    return;
-	}
-
-	if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
-	    ret = krb5_mk_rep(context, auth_context, &outbuf);
-	    if (ret) {
-		Data(ap, KRB_REJECT,
-		     "krb5_mk_rep failed", -1);
-		auth_finished(ap, AUTH_REJECT);
-		if (auth_debug_mode)
-		    printf("Kerberos V5: "
-			   "krb5_mk_rep failed (%s)\r\n",
-			   krb5_get_err_text(context, ret));
-		return;
-	    }
-	    Data(ap, KRB_RESPONSE, outbuf.data, outbuf.length);
-	}
-	if (krb5_unparse_name(context, ticket->client, &name))
-	    name = 0;
-
-	if(UserNameRequested && krb5_kuserok(context,
-					     ticket->client,
-					     UserNameRequested)) {
-	    Data(ap, KRB_ACCEPT, name, name ? -1 : 0);
-	    if (auth_debug_mode) {
-		printf("Kerberos5 identifies him as ``%s''\r\n",
-		       name ? name : "");
-	    }
-
-	    if(key_block->keytype == ETYPE_DES_CBC_MD5 ||
-	       key_block->keytype == ETYPE_DES_CBC_MD4 ||
-	       key_block->keytype == ETYPE_DES_CBC_CRC) {
-		Session_Key skey;
-
-		skey.type = SK_DES;
-		skey.length = 8;
-		skey.data = key_block->keyvalue.data;
-		encrypt_session_key(&skey, 0);
-	    }
-
-	} else {
-	    char *msg;
-
-	    asprintf (&msg, "user `%s' is not authorized to "
-		      "login as `%s'", 
-		      name ? name : "<unknown>",
-		      UserNameRequested ? UserNameRequested : "<nobody>");
-	    if (msg == NULL)
-		Data(ap, KRB_REJECT, NULL, 0);
-	    else {
-		Data(ap, KRB_REJECT, (void *)msg, -1);
-		free(msg);
-	    }
-	    auth_finished (ap, AUTH_REJECT);
-	    krb5_free_keyblock_contents(context, key_block);
-	    break;
-	}
-	auth_finished(ap, AUTH_USER);
-	krb5_free_keyblock_contents(context, key_block);
-	
-	break;
-    case KRB_FORWARD: {
-	struct passwd *pwd;
-	char ccname[1024];	/* XXX */
-	krb5_data inbuf;
-	krb5_ccache ccache;
-	inbuf.data = (char *)data;
-	inbuf.length = cnt;
-
-	pwd = getpwnam (UserNameRequested);
-	if (pwd == NULL)
-	    break;
-
-	snprintf (ccname, sizeof(ccname),
-		  "FILE:/tmp/krb5cc_%u", pwd->pw_uid);
-
-	ret = krb5_cc_resolve (context, ccname, &ccache);
-	if (ret) {
-	    if (auth_debug_mode)
-		printf ("Kerberos V5: could not get ccache: %s\r\n",
-			krb5_get_err_text(context, ret));
-	    break;
-	}
-
-	ret = krb5_cc_initialize (context,
-				  ccache,
-				  ticket->client);
-	if (ret) {
-	    if (auth_debug_mode)
-		printf ("Kerberos V5: could not init ccache: %s\r\n",
-			krb5_get_err_text(context, ret));
-	    break;
-	}
-
-#if defined(DCE)
-	esetenv("KRB5CCNAME", ccname, 1);
-#endif
-	ret = krb5_rd_cred2 (context,
-			     auth_context,
-			     ccache,
-			     &inbuf);
-	if(ret) {
-	    char *errbuf;
-
-	    asprintf (&errbuf,
-		      "Read forwarded creds failed: %s",
-		      krb5_get_err_text (context, ret));
-	    if(errbuf == NULL)
-		Data(ap, KRB_FORWARD_REJECT, NULL, 0);
-	    else
-		Data(ap, KRB_FORWARD_REJECT, errbuf, -1);
-	    if (auth_debug_mode)
-		printf("Could not read forwarded credentials: %s\r\n",
-		       errbuf);
-	    free (errbuf);
-	} else {
-	    Data(ap, KRB_FORWARD_ACCEPT, 0, 0);
-#if defined(DCE)
-	    dfsfwd = 1;
-#endif
-	}
-	chown (ccname + 5, pwd->pw_uid, -1);
-	if (auth_debug_mode)
-	    printf("Forwarded credentials obtained\r\n");
-	break;
-    }
-    default:
-	if (auth_debug_mode)
-	    printf("Unknown Kerberos option %d\r\n", data[-1]);
-	Data(ap, KRB_REJECT, 0, 0);
-	break;
-    }
-}
-
-void
-kerberos5_reply(Authenticator *ap, unsigned char *data, int cnt)
-{
-    static int mutual_complete = 0;
-
-    if (cnt-- < 1)
-	return;
-    switch (*data++) {
-    case KRB_REJECT:
-	if (cnt > 0) {
-	    printf("[ Kerberos V5 refuses authentication because %.*s ]\r\n",
-		   cnt, data);
-	} else
-	    printf("[ Kerberos V5 refuses authentication ]\r\n");
-	auth_send_retry();
-	return;
-    case KRB_ACCEPT: {
-	krb5_error_code ret;
-	Session_Key skey;
-	krb5_keyblock *keyblock;
-	
-	if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL &&
-	    !mutual_complete) {
-	    printf("[ Kerberos V5 accepted you, but didn't provide mutual authentication! ]\r\n");
-	    auth_send_retry();
-	    return;
-	}
-	if (cnt)
-	    printf("[ Kerberos V5 accepts you as ``%.*s'' ]\r\n", cnt, data);
-	else
-	    printf("[ Kerberos V5 accepts you ]\r\n");
-	      
-	ret = krb5_auth_con_getlocalsubkey (context,
-					    auth_context,
-					    &keyblock);
-	if (ret)
-	    ret = krb5_auth_con_getkey (context,
-					auth_context,
-					&keyblock);
-	if(ret) {
-	    printf("[ krb5_auth_con_getkey: %s ]\r\n",
-		   krb5_get_err_text(context, ret));
-	    auth_send_retry();
-	    return;
-	}
-	      
-	skey.type = SK_DES;
-	skey.length = 8;
-	skey.data = keyblock->keyvalue.data;
-	encrypt_session_key(&skey, 0);
-	krb5_free_keyblock_contents (context, keyblock);
-	auth_finished(ap, AUTH_USER);
-	if (forward_flags & OPTS_FORWARD_CREDS)
-	    kerberos5_forward(ap);
-	break;
-    }
-    case KRB_RESPONSE:
-	if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
-	    /* the rest of the reply should contain a krb_ap_rep */
-	  krb5_ap_rep_enc_part *reply;
-	  krb5_data inbuf;
-	  krb5_error_code ret;
-	    
-	  inbuf.length = cnt;
-	  inbuf.data = (char *)data;
-
-	  ret = krb5_rd_rep(context, auth_context, &inbuf, &reply);
-	  if (ret) {
-	      printf("[ Mutual authentication failed: %s ]\r\n",
-		     krb5_get_err_text (context, ret));
-	      auth_send_retry();
-	      return;
-	  }
-	  krb5_free_ap_rep_enc_part(context, reply);
-	  mutual_complete = 1;
-	}
-	return;
-    case KRB_FORWARD_ACCEPT:
-	printf("[ Kerberos V5 accepted forwarded credentials ]\r\n");
-	return;
-    case KRB_FORWARD_REJECT:
-	printf("[ Kerberos V5 refuses forwarded credentials because %.*s ]\r\n",
-	       cnt, data);
-	return;
-    default:
-	if (auth_debug_mode)
-	    printf("Unknown Kerberos option %d\r\n", data[-1]);
-	return;
-    }
-}
-
-int
-kerberos5_status(Authenticator *ap __unused, char *name, int level)
-{
-    if (level < AUTH_USER)
-	return(level);
-
-    if (UserNameRequested &&
-	krb5_kuserok(context,
-		     ticket->client,
-		     UserNameRequested))
-	{
-	    strcpy(name, UserNameRequested);
-	    return(AUTH_VALID);
-	} else
-	    return(AUTH_USER);
-}
-
-#define	BUMP(buf, len)		while (*(buf)) {++(buf), --(len);}
-#define	ADDC(buf, len, c)	if ((len) > 0) {*(buf)++ = (c); --(len);}
-
-void
-kerberos5_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-    int i;
-
-    buf[buflen-1] = '\0';		/* make sure its NULL terminated */
-    buflen -= 1;
-
-    switch(data[3]) {
-    case KRB_REJECT:		/* Rejected (reason might follow) */
-	strlcpy((char *)buf, " REJECT ", buflen);
-	goto common;
-
-    case KRB_ACCEPT:		/* Accepted (name might follow) */
-	strlcpy((char *)buf, " ACCEPT ", buflen);
-    common:
-	BUMP(buf, buflen);
-	if (cnt <= 4)
-	    break;
-	ADDC(buf, buflen, '"');
-	for (i = 4; i < cnt; i++)
-	    ADDC(buf, buflen, data[i]);
-	ADDC(buf, buflen, '"');
-	ADDC(buf, buflen, '\0');
-	break;
-
-
-    case KRB_AUTH:			/* Authentication data follows */
-	strlcpy((char *)buf, " AUTH", buflen);
-	goto common2;
-
-    case KRB_RESPONSE:
-	strlcpy((char *)buf, " RESPONSE", buflen);
-	goto common2;
-
-    case KRB_FORWARD:		/* Forwarded credentials follow */
-	strlcpy((char *)buf, " FORWARD", buflen);
-	goto common2;
-
-    case KRB_FORWARD_ACCEPT:	/* Forwarded credentials accepted */
-	strlcpy((char *)buf, " FORWARD_ACCEPT", buflen);
-	goto common2;
-
-    case KRB_FORWARD_REJECT:	/* Forwarded credentials rejected */
-	/* (reason might follow) */
-	strlcpy((char *)buf, " FORWARD_REJECT", buflen);
-	goto common2;
-
-    default:
-	snprintf(buf, buflen, " %d (unknown)", data[3]);
-    common2:
-	BUMP(buf, buflen);
-	for (i = 4; i < cnt; i++) {
-	    snprintf(buf, buflen, " %d", data[i]);
-	    BUMP(buf, buflen);
-	}
-	break;
-    }
-}
-
-void
-kerberos5_forward(Authenticator *ap)
-{
-    krb5_error_code ret;
-    krb5_ccache     ccache;
-    krb5_creds      creds;
-    krb5_kdc_flags  flags;
-    krb5_data       out_data;
-    krb5_principal  principal;
-
-    ret = krb5_cc_default (context, &ccache);
-    if (ret) {
-	if (auth_debug_mode)
-	    printf ("KerberosV5: could not get default ccache: %s\r\n",
-		    krb5_get_err_text (context, ret));
-	return;
-    }
-
-    ret = krb5_cc_get_principal (context, ccache, &principal);
-    if (ret) {
-	if (auth_debug_mode)
-	    printf ("KerberosV5: could not get principal: %s\r\n",
-		    krb5_get_err_text (context, ret));
-	return;
-    }
-
-    memset (&creds, 0, sizeof(creds));
-
-    creds.client = principal;
-    
-    ret = krb5_build_principal (context,
-				&creds.server,
-				strlen(principal->realm),
-				principal->realm,
-				"krbtgt",
-				principal->realm,
-				NULL);
-
-    if (ret) {
-	if (auth_debug_mode)
-	    printf ("KerberosV5: could not get principal: %s\r\n",
-		    krb5_get_err_text (context, ret));
-	return;
-    }
-
-    creds.times.endtime = 0;
-
-    flags.i = 0;
-    flags.b.forwarded = 1;
-    if (forward_flags & OPTS_FORWARDABLE_CREDS)
-	flags.b.forwardable = 1;
-
-    ret = krb5_get_forwarded_creds (context,
-				    auth_context,
-				    ccache,
-				    flags.i,
-				    RemoteHostName,
-				    &creds,
-				    &out_data);
-    if (ret) {
-	if (auth_debug_mode)
-	    printf ("Kerberos V5: error getting forwarded creds: %s\r\n",
-		    krb5_get_err_text (context, ret));
-	return;
-    }
-
-    if(!Data(ap, KRB_FORWARD, out_data.data, out_data.length)) {
-	if (auth_debug_mode)
-	    printf("Not enough room for authentication data\r\n");
-    } else {
-	if (auth_debug_mode)
-	    printf("Forwarded local Kerberos V5 credentials to server\r\n");
-    }
-}
-
-#if defined(DCE)
-/* if this was a K5 authentication try and join a PAG for the user. */
-void
-kerberos5_dfspag(void)
-{
-    if (dfsk5ok) {
-	dfspag = krb5_dfs_pag(context, dfsfwd, ticket->client,
-			      UserNameRequested);
-    }
-}
-#endif
-
-#endif /* KRB5 */
diff --git a/crypto/telnet/libtelnet/key-proto.h b/crypto/telnet/libtelnet/key-proto.h
deleted file mode 100644
index 2f3f3466daa5..000000000000
--- a/crypto/telnet/libtelnet/key-proto.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)key-proto.h	8.1 (Berkeley) 6/4/93
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- *
- * $FreeBSD$
- */
-
-#ifndef	__KEY_PROTO__
-#define	__KEY_PROTO__
-
-int key_file_exists(void);
-void key_lookup(unsigned char *, Block);
-void key_stream_init(Block, Block, int);
-unsigned char key_stream(int, int);
-#endif
diff --git a/crypto/telnet/libtelnet/krb4encpwd.c b/crypto/telnet/libtelnet/krb4encpwd.c
deleted file mode 100644
index e0530f6e63c3..000000000000
--- a/crypto/telnet/libtelnet/krb4encpwd.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-static char sccsid[] = "@(#)krb4encpwd.c	8.3 (Berkeley) 5/30/95";
-#endif /* not lint */
-
-
-#ifdef	KRB4_ENCPWD
-/*
- * COPYRIGHT (C) 1990 DIGITAL EQUIPMENT CORPORATION
- * ALL RIGHTS RESERVED
- *
- * "Digital Equipment Corporation authorizes the reproduction,
- * distribution and modification of this software subject to the following
- * restrictions:
- *
- * 1.  Any partial or whole copy of this software, or any modification
- * thereof, must include this copyright notice in its entirety.
- *
- * 2.  This software is supplied "as is" with no warranty of any kind,
- * expressed or implied, for any purpose, including any warranty of fitness
- * or merchantibility.  DIGITAL assumes no responsibility for the use or
- * reliability of this software, nor promises to provide any form of
- * support for it on any basis.
- *
- * 3.  Distribution of this software is authorized only if no profit or
- * remuneration of any kind is received in exchange for such distribution.
- *
- * 4.  This software produces public key authentication certificates
- * bearing an expiration date established by DIGITAL and RSA Data
- * Security, Inc.  It may cease to generate certificates after the expiration
- * date.  Any modification of this software that changes or defeats
- * the expiration date or its effect is unauthorized.
- *
- * 5.  Software that will renew or extend the expiration date of
- * authentication certificates produced by this software may be obtained
- * from RSA Data Security, Inc., 10 Twin Dolphin Drive, Redwood City, CA
- * 94065, (415)595-8782, or from DIGITAL"
- *
- */
-
-#include <sys/types.h>
-#include <openssl/des.h>
-#include <arpa/telnet.h>
-#include <krb.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "encrypt.h"
-#include "auth.h"
-#include "misc.h"
-
-int krb_mk_encpwd_req(KTEXT, char *, char *, char *, char *, char *, char *);
-int krb_rd_encpwd_req(KTEXT, char *, char *, u_long, AUTH_DAT *, char *, char *, char *, char *);
-
-extern auth_debug_mode;
-
-static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
-			  		AUTHTYPE_KRB4_ENCPWD, };
-static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION,
-					TELQUAL_NAME, };
-
-#define	KRB4_ENCPWD_AUTH	0	/* Authentication data follows */
-#define	KRB4_ENCPWD_REJECT	1	/* Rejected (reason might follow) */
-#define KRB4_ENCPWD_ACCEPT	2	/* Accepted */
-#define	KRB4_ENCPWD_CHALLENGE	3	/* Challenge for mutual auth. */
-#define	KRB4_ENCPWD_ACK		4	/* Acknowledge */
-
-#define KRB_SERVICE_NAME    "rcmd"
-
-static	KTEXT_ST auth;
-static	char name[ANAME_SZ];
-static	char user_passwd[ANAME_SZ];
-static	AUTH_DAT adat = { 0 };
-#ifdef	ENCRYPTION
-static Block	session_key	= { 0 };
-#endif	/* ENCRYPTION */
-static char  challenge[REALM_SZ];
-
-	static int
-Data(ap, type, d, c)
-	Authenticator *ap;
-	int type;
-	void *d;
-	int c;
-{
-	unsigned char *p = str_data + 4;
-	unsigned char *cd = (unsigned char *)d;
-
-	if (c == -1)
-		c = strlen((char *)cd);
-
-	if (0) {
-		printf("%s:%d: [%d] (%d)",
-			str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY",
-			str_data[3],
-			type, c);
-		printd(d, c);
-		printf("\r\n");
-	}
-	*p++ = ap->type;
-	*p++ = ap->way;
-	*p++ = type;
-	while (c-- > 0) {
-		if ((*p++ = *cd++) == IAC)
-			*p++ = IAC;
-	}
-	*p++ = IAC;
-	*p++ = SE;
-	if (str_data[3] == TELQUAL_IS)
-		printsub('>', &str_data[2], p - (&str_data[2]));
-	return(net_write(str_data, p - str_data));
-}
-
-	int
-krb4encpwd_init(ap, server)
-	Authenticator *ap;
-	int server;
-{
-	char hostname[80], *cp, *realm;
-	C_Block skey;
-
-	if (server) {
-		str_data[3] = TELQUAL_REPLY;
-	} else {
-		str_data[3] = TELQUAL_IS;
-		gethostname(hostname, sizeof(hostname));
-		realm = krb_realmofhost(hostname);
-		cp = strchr(hostname, '.');
-		if (*cp != NULL) *cp = NULL;
-		if (read_service_key(KRB_SERVICE_NAME, hostname, realm, 0,
-					KEYFILE, (char *)skey)) {
-		  return(0);
-		}
-	}
-	return(1);
-}
-
-	int
-krb4encpwd_send(ap)
-	Authenticator *ap;
-{
-
-	printf("[ Trying KRB4ENCPWD ... ]\n");
-	if (!UserNameRequested) {
-		return(0);
-	}
-	if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) {
-		return(0);
-	}
-
-	if (!Data(ap, KRB4_ENCPWD_ACK, (void *)NULL, 0)) {
-		return(0);
-	}
-
-	return(1);
-}
-
-	void
-krb4encpwd_is(ap, data, cnt)
-	Authenticator *ap;
-	unsigned char *data;
-	int cnt;
-{
-	Session_Key skey;
-	Block datablock;
-	char  r_passwd[ANAME_SZ], r_user[ANAME_SZ];
-	char  lhostname[ANAME_SZ], *cp;
-	int r;
-	time_t now;
-
-	if (cnt-- < 1)
-		return;
-	switch (*data++) {
-	case KRB4_ENCPWD_AUTH:
-		memmove((void *)auth.dat, (void *)data, auth.length = cnt);
-
-		gethostname(lhostname, sizeof(lhostname));
-		if ((cp = strchr(lhostname, '.')) != 0)  *cp = '\0';
-
-		if (r = krb_rd_encpwd_req(&auth, KRB_SERVICE_NAME, lhostname, 0, &adat, NULL, challenge, r_user, r_passwd)) {
-			Data(ap, KRB4_ENCPWD_REJECT, (void *)"Auth failed", -1);
-			auth_finished(ap, AUTH_REJECT);
-			return;
-		}
-		auth_encrypt_userpwd(r_passwd);
-		if (passwdok(UserNameRequested, UserPassword) == 0) {
-		  /*
-		   *  illegal username and password
-		   */
-		  Data(ap, KRB4_ENCPWD_REJECT, (void *)"Illegal password", -1);
-		  auth_finished(ap, AUTH_REJECT);
-		  return;
-		}
-
-		memmove((void *)session_key, (void *)adat.session, sizeof(Block));
-		Data(ap, KRB4_ENCPWD_ACCEPT, (void *)0, 0);
-		auth_finished(ap, AUTH_USER);
-		break;
-
-	case KRB4_ENCPWD_CHALLENGE:
-		/*
-		 *  Take the received random challenge text and save
-		 *  for future authentication.
-		 */
-		memmove((void *)challenge, (void *)data, sizeof(Block));
-		break;
-
-
-	case KRB4_ENCPWD_ACK:
-		/*
-		 *  Receive ack, if mutual then send random challenge
-		 */
-
-		/*
-		 * If we are doing mutual authentication, get set up to send
-		 * the challenge, and verify it when the response comes back.
-		 */
-
-		if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
-		  register int i;
-
-		  time(&now);
-		  sprintf(challenge, "%x", now);
-		  Data(ap, KRB4_ENCPWD_CHALLENGE, (void *)challenge, strlen(challenge));
-		}
-		break;
-
-	default:
-		Data(ap, KRB4_ENCPWD_REJECT, 0, 0);
-		break;
-	}
-}
-
-
-	void
-krb4encpwd_reply(ap, data, cnt)
-	Authenticator *ap;
-	unsigned char *data;
-	int cnt;
-{
-	Session_Key skey;
-	KTEXT_ST krb_token;
-	Block enckey;
-	CREDENTIALS cred;
-	int r;
-	char	randchal[REALM_SZ], instance[ANAME_SZ], *cp;
-	char	hostname[80], *realm;
-
-	if (cnt-- < 1)
-		return;
-	switch (*data++) {
-	case KRB4_ENCPWD_REJECT:
-		if (cnt > 0) {
-			printf("[ KRB4_ENCPWD refuses authentication because %.*s ]\r\n",
-				cnt, data);
-		} else
-			printf("[ KRB4_ENCPWD refuses authentication ]\r\n");
-		auth_send_retry();
-		return;
-	case KRB4_ENCPWD_ACCEPT:
-		printf("[ KRB4_ENCPWD accepts you ]\n");
-		auth_finished(ap, AUTH_USER);
-		return;
-	case KRB4_ENCPWD_CHALLENGE:
-		/*
-		 * Verify that the response to the challenge is correct.
-		 */
-
-		gethostname(hostname, sizeof(hostname));
-		realm = krb_realmofhost(hostname);
-		memmove((void *)challenge, (void *)data, cnt);
-		memset(user_passwd, 0, sizeof(user_passwd));
-		local_des_read_pw_string(user_passwd, sizeof(user_passwd)-1, "Password: ", 0);
-		UserPassword = user_passwd;
-		Challenge = challenge;
-		strcpy(instance, RemoteHostName);
-		if ((cp = strchr(instance, '.')) != 0)  *cp = '\0';
-
-		if (r = krb_mk_encpwd_req(&krb_token, KRB_SERVICE_NAME, instance, realm, Challenge, UserNameRequested, user_passwd)) {
-		  krb_token.length = 0;
-		}
-
-		if (!Data(ap, KRB4_ENCPWD_AUTH, (void *)krb_token.dat, krb_token.length)) {
-		  return;
-		}
-
-		break;
-
-	default:
-		return;
-	}
-}
-
-	int
-krb4encpwd_status(ap, name, level)
-	Authenticator *ap;
-	char *name;
-	int level;
-{
-
-	if (level < AUTH_USER)
-		return(level);
-
-	if (UserNameRequested && passwdok(UserNameRequested, UserPassword)) {
-		strcpy(name, UserNameRequested);
-		return(AUTH_VALID);
-	} else {
-		return(AUTH_USER);
-	}
-}
-
-#define	BUMP(buf, len)		while (*(buf)) {++(buf), --(len);}
-#define	ADDC(buf, len, c)	if ((len) > 0) {*(buf)++ = (c); --(len);}
-
-	void
-krb4encpwd_printsub(data, cnt, buf, buflen)
-	unsigned char *data, *buf;
-	int cnt, buflen;
-{
-	char lbuf[32];
-	register int i;
-
-	buf[buflen-1] = '\0';		/* make sure its NULL terminated */
-	buflen -= 1;
-
-	switch(data[3]) {
-	case KRB4_ENCPWD_REJECT:	/* Rejected (reason might follow) */
-		strncpy((char *)buf, " REJECT ", buflen);
-		goto common;
-
-	case KRB4_ENCPWD_ACCEPT:	/* Accepted (name might follow) */
-		strncpy((char *)buf, " ACCEPT ", buflen);
-	common:
-		BUMP(buf, buflen);
-		if (cnt <= 4)
-			break;
-		ADDC(buf, buflen, '"');
-		for (i = 4; i < cnt; i++)
-			ADDC(buf, buflen, data[i]);
-		ADDC(buf, buflen, '"');
-		ADDC(buf, buflen, '\0');
-		break;
-
-	case KRB4_ENCPWD_AUTH:		/* Authentication data follows */
-		strncpy((char *)buf, " AUTH", buflen);
-		goto common2;
-
-	case KRB4_ENCPWD_CHALLENGE:
-		strncpy((char *)buf, " CHALLENGE", buflen);
-		goto common2;
-
-	case KRB4_ENCPWD_ACK:
-		strncpy((char *)buf, " ACK", buflen);
-		goto common2;
-
-	default:
-		sprintf(lbuf, " %d (unknown)", data[3]);
-		strncpy((char *)buf, lbuf, buflen);
-	common2:
-		BUMP(buf, buflen);
-		for (i = 4; i < cnt; i++) {
-			sprintf(lbuf, " %d", data[i]);
-			strncpy((char *)buf, lbuf, buflen);
-			BUMP(buf, buflen);
-		}
-		break;
-	}
-}
-
-int passwdok(name, passwd)
-char *name, *passwd;
-{
-  char *crypt();
-  char *salt, *p;
-  struct passwd *pwd;
-  int   passwdok_status = 0;
-
-  if (pwd = getpwnam(name))
-    salt = pwd->pw_passwd;
-  else salt = "xx";
-
-  p = crypt(passwd, salt);
-
-  if (pwd && !strcmp(p, pwd->pw_passwd)) {
-    passwdok_status = 1;
-  } else passwdok_status = 0;
-  return(passwdok_status);
-}
-
-#endif
diff --git a/crypto/telnet/libtelnet/misc-proto.h b/crypto/telnet/libtelnet/misc-proto.h
deleted file mode 100644
index aea753c3ff93..000000000000
--- a/crypto/telnet/libtelnet/misc-proto.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)misc-proto.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifndef	__MISC_PROTO__
-#define	__MISC_PROTO__
-
-void auth_encrypt_init(char *, char *, const char *, int);
-void auth_encrypt_connect(int);
-void printd(const unsigned char *, int);
-
-int isprefix(char *, const char *);
-char **genget(char *, char **, int);
-int Ambiguous(char **);
-
-int getent(char *, const char *);
-char *Getstr(const char *, char **);
-
-/*
- * These functions are imported from the application
- */
-int net_write(unsigned char *, int);
-void net_encrypt(void);
-int telnet_spin(void);
-char *telnet_getenv(char *);
-char *telnet_gets(const char *, char *, int, int);
-void printsub(char, unsigned char *, int);
-#endif
diff --git a/crypto/telnet/libtelnet/misc.c b/crypto/telnet/libtelnet/misc.c
deleted file mode 100644
index 97299ad53b77..000000000000
--- a/crypto/telnet/libtelnet/misc.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static const char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/4/93";
-#endif
-#endif /* not lint */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "misc.h"
-#ifdef	AUTHENTICATION
-#include "auth.h"
-#endif
-#ifdef	ENCRYPTION
-#include "encrypt.h"
-#endif	/* ENCRYPTION */
-
-char *RemoteHostName;
-char *LocalHostName;
-char *UserNameRequested = 0;
-int ConnectedCount = 0;
-
-#ifndef AUTHENTICATION
-#define undef1 __unused
-#else
-#define undef1
-#endif
-
-void
-auth_encrypt_init(char *local, char *remote, const char *name undef1, int server undef1)
-{
-	RemoteHostName = remote;
-	LocalHostName = local;
-#ifdef	AUTHENTICATION
-	auth_init(name, server);
-#endif
-#ifdef	ENCRYPTION
-	encrypt_init(name, server);
-#endif	/* ENCRYPTION */
-	if (UserNameRequested) {
-		free(UserNameRequested);
-		UserNameRequested = 0;
-	}
-}
-
-#ifdef	ENCRYPTION
-void
-auth_encrypt_user(char *name)
-{
-	if (UserNameRequested)
-		free(UserNameRequested);
-	UserNameRequested = name ? strdup(name) : 0;
-}
-
-/* ARGSUSED */
-void
-auth_encrypt_connect(int cnt __unused)
-{
-}
-#endif	/* ENCRYPTION */
-
-void
-printd(const unsigned char *data, int cnt)
-{
-	if (cnt > 16)
-		cnt = 16;
-	while (cnt-- > 0) {
-		printf(" %02x", *data);
-		++data;
-	}
-}
diff --git a/crypto/telnet/libtelnet/misc.h b/crypto/telnet/libtelnet/misc.h
deleted file mode 100644
index 41ffa7f67aa7..000000000000
--- a/crypto/telnet/libtelnet/misc.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)misc.h	8.1 (Berkeley) 6/4/93
- */
-
-extern char *UserNameRequested;
-extern char *LocalHostName;
-extern char *RemoteHostName;
-extern int ConnectedCount;
-extern int ReservedPort;
-
-#include "misc-proto.h"
diff --git a/crypto/telnet/libtelnet/pk.c b/crypto/telnet/libtelnet/pk.c
deleted file mode 100644
index 044e9b9e8ffa..000000000000
--- a/crypto/telnet/libtelnet/pk.c
+++ /dev/null
@@ -1,265 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *      Dave Safford.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * 
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-/* public key routines */
-/* functions:
-	genkeys(char *public, char *secret)
-	common_key(char *secret, char *public, desData *deskey)
-        pk_encode(char *in, *out, DesData *deskey);
-        pk_decode(char *in, *out, DesData *deskey);
-      where
-	char public[HEXKEYBYTES + 1];
-	char secret[HEXKEYBYTES + 1];
- */
-
-#include <sys/time.h>
-#include <openssl/des.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "mp.h"
-#include "pk.h"
- 
-static void adjust(char keyout[HEXKEYBYTES+1], char *keyin);
-
-/*
- * Choose top 128 bits of the common key to use as our idea key.
- */
-static void
-extractideakey(MINT *ck, IdeaData *ideakey)
-{
-        MINT *a;
-        MINT *z;
-        short r;
-        int i;
-        short base = (1 << 8);
-        char *k;
-
-        z = itom(0);
-        a = itom(0);
-        madd(ck, z, a);
-        for (i = 0; i < ((KEYSIZE - 128) / 8); i++) {
-                sdiv(a, base, a, &r);
-        }
-        k = (char *)ideakey;
-        for (i = 0; i < 16; i++) {
-                sdiv(a, base, a, &r);
-                *k++ = r;
-        }
-	mfree(z);
-        mfree(a);
-}
-
-/*
- * Choose middle 64 bits of the common key to use as our des key, possibly
- * overwriting the lower order bits by setting parity. 
- */
-static void
-extractdeskey(MINT *ck, DesData *deskey)
-{
-        MINT *a;
-        MINT *z;
-        short r;
-        int i;
-        short base = (1 << 8);
-        char *k;
-
-        z = itom(0);
-        a = itom(0);
-        madd(ck, z, a);
-        for (i = 0; i < ((KEYSIZE - 64) / 2) / 8; i++) {
-                sdiv(a, base, a, &r);
-        }
-        k = (char *)deskey;
-        for (i = 0; i < 8; i++) {
-                sdiv(a, base, a, &r);
-                *k++ = r;
-        }
-	mfree(z);
-        mfree(a);
-}
-
-/*
- * get common key from my secret key and his public key
- */
-void
-common_key(char *xsecret, char *xpublic, IdeaData *ideakey, DesData *deskey)
-{
-        MINT *public;
-        MINT *secret;
-        MINT *common;
-	MINT *modulus = xtom(HEXMODULUS);
-
-        public = xtom(xpublic);
-        secret = xtom(xsecret);
-        common = itom(0);
-        pow(public, secret, modulus, common);
-        extractdeskey(common, deskey);
-        extractideakey(common, ideakey);
-	des_set_odd_parity(deskey);
-        mfree(common);
-        mfree(secret);
-        mfree(public);
-	mfree(modulus);
-}
-
-/*
- * Generate a seed
- */
-static void
-getseed(char *seed, int seedsize)
-{
-	int i;
-
-	srandomdev();
-	for (i = 0; i < seedsize; i++) {
-		seed[i] = random() & 0xff;
-	}
-}
-
-/*
- * Generate a random public/secret key pair
- */
-void
-genkeys(char *public, char *secret)
-{
-        size_t i;
- 
-#       define BASEBITS (8*sizeof(short) - 1)
-#       define BASE (1 << BASEBITS)
- 
-        MINT *pk = itom(0);
-        MINT *sk = itom(0);
-        MINT *tmp;
-        MINT *base = itom(BASE);
-        MINT *root = itom(PROOT);
-        MINT *modulus = xtom(HEXMODULUS);
-        short r;
-        unsigned short seed[KEYSIZE/BASEBITS + 1];
-        char *xkey;
-
-        getseed((char *)seed, sizeof(seed));    
-        for (i = 0; i < KEYSIZE/BASEBITS + 1; i++) {
-                r = seed[i] % BASE;
-                tmp = itom(r);
-                mult(sk, base, sk);
-                madd(sk, tmp, sk);
-                mfree(tmp);  
-        }
-        tmp = itom(0);
-        mdiv(sk, modulus, tmp, sk);
-        mfree(tmp);
-        pow(root, sk, modulus, pk); 
-        xkey = mtox(sk);   
-        adjust(secret, xkey);
-        xkey = mtox(pk);
-        adjust(public, xkey);
-        mfree(sk);
-        mfree(base);
-        mfree(pk);
-        mfree(root);
-        mfree(modulus);
-} 
-
-/*
- * Adjust the input key so that it is 0-filled on the left
- */
-static void
-adjust(char keyout[HEXKEYBYTES+1], char *keyin)
-{
-        char *p;
-        char *s;
-
-        for (p = keyin; *p; p++) 
-                ;
-        for (s = keyout + HEXKEYBYTES; p >= keyin; p--, s--) {
-                *s = *p;
-        }
-        while (s >= keyout) {
-                *s-- = '0';
-        }
-}
-
-static char hextab[17] = "0123456789ABCDEF";
-
-/* given a DES key, cbc encrypt and translate input to terminated hex */
-void
-pk_encode(char *in, char *out, DesData *key)
-{
-	char buf[256];
-	DesData i;
-	des_key_schedule k;
-	int l,op,deslen;
-
-	memset(&i,0,sizeof(i));
-	memset(buf,0,sizeof(buf));
-	deslen = ((strlen(in) + 7)/8)*8;
-	des_key_sched(key, k);
-	des_cbc_encrypt(in,buf,deslen, k,&i,DES_ENCRYPT);
-	for (l=0,op=0;l<deslen;l++) {
-		out[op++] = hextab[(buf[l] & 0xf0) >> 4];
-		out[op++] = hextab[(buf[l] & 0x0f)];
-	}
-	out[op] = '\0';
-}
-
-/* given a DES key, translate input from hex and decrypt */
-void
-pk_decode(char *in, char *out, DesData *key)
-{
-	char buf[256];
-	DesData i;
-	des_key_schedule k;
-	int n1,n2,op;
-	size_t l;
-
-	memset(&i,0,sizeof(i));
-	memset(buf,0,sizeof(buf));
-	for (l=0,op=0;l<strlen(in)/2;l++,op+=2) {
-		if (in[op] > '9')
-			n1 = in[op] - 'A' + 10;
-		else
-			n1 = in[op] - '0';
-		if (in[op+1] > '9')
-			n2 = in[op+1] - 'A' + 10;
-		else
-			n2 = in[op+1] - '0';
-		buf[l] = n1*16 +n2;
-	}
-	des_key_sched(key, k);
-	des_cbc_encrypt(buf,out,strlen(in)/2, k,&i,DES_DECRYPT);
-	out[strlen(in)/2] = '\0';
-}
diff --git a/crypto/telnet/libtelnet/pk.h b/crypto/telnet/libtelnet/pk.h
deleted file mode 100644
index 555d8ebdeb78..000000000000
--- a/crypto/telnet/libtelnet/pk.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *      Dave Safford.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * 
- * $FreeBSD$
- */
-
-/* header for the des routines that we will use */
-
-typedef unsigned char byte, DesData[ 8], IdeaData[16];
-#define DesKeys des_key_schedule
-
-#define DES_DECRYPT 0
-#define DES_ENCRYPT 1
-
-/* public key routines */
-/* functions:
-	genkeys(char *public, char *secret)
-	common_key(char *secret, char *public, desData *deskey)
-      where
-	char public[HEXKEYBYTES + 1];
-	char secret[HEXKEYBYTES + 1];
- */
-
-#define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b"
-#define HEXKEYBYTES 48
-#define KEYSIZE 192
-#define KEYBYTES 24
-#define PROOT 3
-
-extern void genkeys(char *public, char *secret);
-extern void common_key(char *secret, char *public, IdeaData *common,
-  DesData *deskey);
-extern void pk_encode(char *in, char *out, DesData *deskey);
-extern void pk_decode(char *in, char *out, DesData *deskey);
diff --git a/crypto/telnet/libtelnet/read_password.c b/crypto/telnet/libtelnet/read_password.c
deleted file mode 100644
index badf21417dcc..000000000000
--- a/crypto/telnet/libtelnet/read_password.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)read_password.c	8.3 (Berkeley) 5/30/95";
-#endif
-#endif /* not lint */
-
-/*
- * $Source: /mit/kerberos/src/lib/des/RCS/read_password.c,v $
- * $Author: jon $
- *
- * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
- * of Technology.
- *
- * For copying and distribution information, please see the file
- * <mit-copyright.h>.
- *
- * This routine prints the supplied string to standard
- * output as a prompt, and reads a password string without
- * echoing.
- */
-
-#if	defined(RSA_ENCPWD) || defined(KRB4_ENCPWD)
-
-#include <stdio.h>
-#include <strings.h>
-#include <sys/ioctl.h>
-#include <signal.h>
-#include <setjmp.h>
-
-static jmp_buf env;
-
-/*** Routines ****************************************************** */
-/*
- * This version just returns the string, doesn't map to key.
- *
- * Returns 0 on success, non-zero on failure.
- */
-
-int
-local_des_read_pw_string(s,max,prompt,verify)
-    char *s;
-    int	max;
-    char *prompt;
-    int	verify;
-{
-    int ok = 0;
-    char *ptr;
-
-    jmp_buf old_env;
-    struct sgttyb tty_state;
-    char key_string[BUFSIZ];
-
-    if (max > BUFSIZ) {
-	return -1;
-    }
-
-    /* XXX assume jmp_buf is typedef'ed to an array */
-    memmove((char *)env, (char *)old_env, sizeof(env));
-    if (setjmp(env))
-	goto lose;
-
-    /* save terminal state*/
-    if (ioctl(0,TIOCGETP,(char *)&tty_state) == -1)
-	return -1;
-/*
-    push_signals();
-*/
-    /* Turn off echo */
-    tty_state.sg_flags &= ~ECHO;
-    if (ioctl(0,TIOCSETP,(char *)&tty_state) == -1)
-	return -1;
-    while (!ok) {
-	(void) printf("%s", prompt);
-	(void) fflush(stdout);
-	while (!fgets(s, max, stdin));
-
-	if ((ptr = strchr(s, '\n')))
-	    *ptr = '\0';
-	if (verify) {
-	    printf("\nVerifying, please re-enter %s",prompt);
-	    (void) fflush(stdout);
-	    if (!fgets(key_string, sizeof(key_string), stdin)) {
-		clearerr(stdin);
-		continue;
-	    }
-	    if ((ptr = strchr(key_string, '\n')))
-	    *ptr = '\0';
-	    if (strcmp(s,key_string)) {
-		printf("\n\07\07Mismatch - try again\n");
-		(void) fflush(stdout);
-		continue;
-	    }
-	}
-	ok = 1;
-    }
-
-lose:
-    if (!ok)
-	memset(s, 0, max);
-    printf("\n");
-    /* turn echo back on */
-    tty_state.sg_flags |= ECHO;
-    if (ioctl(0,TIOCSETP,(char *)&tty_state))
-	ok = 0;
-/*
-    pop_signals();
-*/
-    memmove((char *)old_env, (char *)env, sizeof(env));
-    if (verify)
-	memset(key_string, 0, sizeof (key_string));
-    s[max-1] = 0;		/* force termination */
-    return !ok;			/* return nonzero if not okay */
-}
-#endif	/* defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) */
diff --git a/crypto/telnet/libtelnet/rsaencpwd.c b/crypto/telnet/libtelnet/rsaencpwd.c
deleted file mode 100644
index fba0c6b61735..000000000000
--- a/crypto/telnet/libtelnet/rsaencpwd.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-static char sccsid[] = "@(#)rsaencpwd.c	8.3 (Berkeley) 5/30/95";
-#endif /* not lint */
-
-
-#ifdef	RSA_ENCPWD
-/*
- * COPYRIGHT (C) 1990 DIGITAL EQUIPMENT CORPORATION
- * ALL RIGHTS RESERVED
- *
- * "Digital Equipment Corporation authorizes the reproduction,
- * distribution and modification of this software subject to the following
- * restrictions:
- *
- * 1.  Any partial or whole copy of this software, or any modification
- * thereof, must include this copyright notice in its entirety.
- *
- * 2.  This software is supplied "as is" with no warranty of any kind,
- * expressed or implied, for any purpose, including any warranty of fitness
- * or merchantibility.  DIGITAL assumes no responsibility for the use or
- * reliability of this software, nor promises to provide any form of
- * support for it on any basis.
- *
- * 3.  Distribution of this software is authorized only if no profit or
- * remuneration of any kind is received in exchange for such distribution.
- *
- * 4.  This software produces public key authentication certificates
- * bearing an expiration date established by DIGITAL and RSA Data
- * Security, Inc.  It may cease to generate certificates after the expiration
- * date.  Any modification of this software that changes or defeats
- * the expiration date or its effect is unauthorized.
- *
- * 5.  Software that will renew or extend the expiration date of
- * authentication certificates produced by this software may be obtained
- * from RSA Data Security, Inc., 10 Twin Dolphin Drive, Redwood City, CA
- * 94065, (415)595-8782, or from DIGITAL"
- *
- */
-
-#include <sys/types.h>
-#include <arpa/telnet.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "encrypt.h"
-#include "auth.h"
-#include "misc.h"
-#include "cdc.h"
-
-extern auth_debug_mode;
-
-static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
-			  		AUTHTYPE_RSA_ENCPWD, };
-static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION,
-					TELQUAL_NAME, };
-
-#define	RSA_ENCPWD_AUTH	0	/* Authentication data follows */
-#define	RSA_ENCPWD_REJECT	1	/* Rejected (reason might follow) */
-#define RSA_ENCPWD_ACCEPT	2	/* Accepted */
-#define	RSA_ENCPWD_CHALLENGEKEY	3	/* Challenge and public key */
-
-#define NAME_SZ   40
-#define CHAL_SZ   20
-#define PWD_SZ    40
-
-static	KTEXT_ST auth;
-static	char name[NAME_SZ];
-static	char user_passwd[PWD_SZ];
-static  char key_file[2*NAME_SZ];
-static  char lhostname[NAME_SZ];
-static char  challenge[CHAL_SZ];
-static int   challenge_len;
-
-	static int
-Data(ap, type, d, c)
-	Authenticator *ap;
-	int type;
-	void *d;
-	int c;
-{
-	unsigned char *p = str_data + 4;
-	unsigned char *cd = (unsigned char *)d;
-
-	if (c == -1)
-		c = strlen((char *)cd);
-
-	if (0) {
-		printf("%s:%d: [%d] (%d)",
-			str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY",
-			str_data[3],
-			type, c);
-		printd(d, c);
-		printf("\r\n");
-	}
-	*p++ = ap->type;
-	*p++ = ap->way;
-	if (type != NULL) *p++ = type;
-	while (c-- > 0) {
-		if ((*p++ = *cd++) == IAC)
-			*p++ = IAC;
-	}
-	*p++ = IAC;
-	*p++ = SE;
-	if (str_data[3] == TELQUAL_IS)
-		printsub('>', &str_data[2], p - (&str_data[2]));
-	return(net_write(str_data, p - str_data));
-}
-
-	int
-rsaencpwd_init(ap, server)
-	Authenticator *ap;
-	int server;
-{
-	char  *cp;
-	FILE  *fp;
-
-	if (server) {
-		str_data[3] = TELQUAL_REPLY;
-		memset(key_file, 0, sizeof(key_file));
-		gethostname(lhostname, sizeof(lhostname));
-		if ((cp = strchr(lhostname, '.')) != 0)  *cp = '\0';
-		strcpy(key_file, "/etc/.");
-		strcat(key_file, lhostname);
-		strcat(key_file, "_privkey");
-		if ((fp=fopen(key_file, "r"))==NULL) return(0);
-		fclose(fp);
-	} else {
-		str_data[3] = TELQUAL_IS;
-	}
-	return(1);
-}
-
-	int
-rsaencpwd_send(ap)
-	Authenticator *ap;
-{
-
-	printf("[ Trying RSAENCPWD ... ]\n");
-	if (!UserNameRequested) {
-		return(0);
-	}
-	if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) {
-		return(0);
-	}
-	if (!Data(ap, NULL, (void *)NULL, 0)) {
-		return(0);
-	}
-
-
-	return(1);
-}
-
-	void
-rsaencpwd_is(ap, data, cnt)
-	Authenticator *ap;
-	unsigned char *data;
-	int cnt;
-{
-	Session_Key skey;
-	Block datablock;
-	char  r_passwd[PWD_SZ], r_user[NAME_SZ];
-	char  *cp, key[160];
-	char  chalkey[160], *ptr;
-	FILE  *fp;
-	int r, i, j, chalkey_len, len;
-	time_t now;
-
-	cnt--;
-	switch (*data++) {
-	case RSA_ENCPWD_AUTH:
-		memmove((void *)auth.dat, (void *)data, auth.length = cnt);
-
-		if ((fp=fopen(key_file, "r"))==NULL) {
-		  Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1);
-		  auth_finished(ap, AUTH_REJECT);
-		  return;
-		}
-		/*
-		 *  get privkey
-		 */
-		fscanf(fp, "%x;", &len);
-		for (i=0;i<len;i++) {
-		  j = getc(fp);  key[i]=j;
-		}
-		fclose(fp);
-
-		r = accept_rsa_encpwd(&auth, key, challenge,
-				      challenge_len, r_passwd);
-		if (r < 0) {
-		  Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1);
-		  auth_finished(ap, AUTH_REJECT);
-		  return;
-		}
-		auth_encrypt_userpwd(r_passwd);
-		if (rsaencpwd_passwdok(UserNameRequested, UserPassword) == 0) {
-		  /*
-		   *  illegal username and password
-		   */
-		  Data(ap, RSA_ENCPWD_REJECT, (void *)"Illegal password", -1);
-		  auth_finished(ap, AUTH_REJECT);
-		  return;
-		}
-
-		Data(ap, RSA_ENCPWD_ACCEPT, (void *)0, 0);
-		auth_finished(ap, AUTH_USER);
-		break;
-
-
-	case IAC:
-
-		/*
-		 * If we are doing mutual authentication, get set up to send
-		 * the challenge, and verify it when the response comes back.
-		 */
-		if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_ONE_WAY) {
-		  register int i;
-
-
-		  time(&now);
-		  if ((now % 2) == 0) {
-		    sprintf(challenge, "%x", now);
-		    challenge_len = strlen(challenge);
-		  } else {
-		    strcpy(challenge, "randchal");
-		    challenge_len = 8;
-		  }
-
-		  if ((fp=fopen(key_file, "r"))==NULL) {
-		    Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1);
-		    auth_finished(ap, AUTH_REJECT);
-		    return;
-		  }
-		  /*
-		   *  skip privkey
-		   */
-		  fscanf(fp, "%x;", &len);
-		  for (i=0;i<len;i++) {
-		    j = getc(fp);
-		  }
-		  /*
-		   * get pubkey
-		   */
-		  fscanf(fp, "%x;", &len);
-		  for (i=0;i<len;i++) {
-		    j = getc(fp);  key[i]=j;
-		  }
-		  fclose(fp);
-		  chalkey[0] = 0x30;
-		  ptr = (char *) &chalkey[1];
-		  chalkey_len = 1+NumEncodeLengthOctets(i)+i+1+NumEncodeLengthOctets(challenge_len)+challenge_len;
-		  EncodeLength(ptr, chalkey_len);
-		  ptr +=NumEncodeLengthOctets(chalkey_len);
-		  *ptr++ = 0x04;  /* OCTET STRING */
-		  *ptr++ = challenge_len;
-		  memmove(ptr, challenge, challenge_len);
-		  ptr += challenge_len;
-		  *ptr++ = 0x04;  /* OCTET STRING */
-		  EncodeLength(ptr, i);
-		  ptr += NumEncodeLengthOctets(i);
-		  memmove(ptr, key, i);
-		  chalkey_len = 1+NumEncodeLengthOctets(chalkey_len)+chalkey_len;
-		  Data(ap, RSA_ENCPWD_CHALLENGEKEY, (void *)chalkey, chalkey_len);
-		}
-		break;
-
-	default:
-		Data(ap, RSA_ENCPWD_REJECT, 0, 0);
-		break;
-	}
-}
-
-
-	void
-rsaencpwd_reply(ap, data, cnt)
-	Authenticator *ap;
-	unsigned char *data;
-	int cnt;
-{
-	Session_Key skey;
-	KTEXT_ST token;
-	Block enckey;
-	int r, pubkey_len;
-	char	randchal[CHAL_SZ], *cp;
-	char	chalkey[160], pubkey[128], *ptr;
-
-	if (cnt-- < 1)
-		return;
-	switch (*data++) {
-	case RSA_ENCPWD_REJECT:
-		if (cnt > 0) {
-			printf("[ RSA_ENCPWD refuses authentication because %.*s ]\r\n",
-				cnt, data);
-		} else
-			printf("[ RSA_ENCPWD refuses authentication ]\r\n");
-		auth_send_retry();
-		return;
-	case RSA_ENCPWD_ACCEPT:
-		printf("[ RSA_ENCPWD accepts you ]\n");
-		auth_finished(ap, AUTH_USER);
-		return;
-	case RSA_ENCPWD_CHALLENGEKEY:
-		/*
-		 * Verify that the response to the challenge is correct.
-		 */
-
-		memmove((void *)chalkey, (void *)data, cnt);
-		ptr = (char *) &chalkey[0];
-		ptr += DecodeHeaderLength(chalkey);
-		if (*ptr != 0x04) {
-		  return;
-		}
-		*ptr++;
-		challenge_len = DecodeValueLength(ptr);
-		ptr += NumEncodeLengthOctets(challenge_len);
-		memmove(challenge, ptr, challenge_len);
-		ptr += challenge_len;
-		if (*ptr != 0x04) {
-		  return;
-		}
-		*ptr++;
-		pubkey_len = DecodeValueLength(ptr);
-		ptr += NumEncodeLengthOctets(pubkey_len);
-		memmove(pubkey, ptr, pubkey_len);
-		memset(user_passwd, 0, sizeof(user_passwd));
-		local_des_read_pw_string(user_passwd, sizeof(user_passwd)-1, "Password: ", 0);
-		UserPassword = user_passwd;
-		Challenge = challenge;
-		r = init_rsa_encpwd(&token, user_passwd, challenge, challenge_len, pubkey);
-		if (r < 0) {
-		  token.length = 1;
-		}
-
-		if (!Data(ap, RSA_ENCPWD_AUTH, (void *)token.dat, token.length)) {
-		  return;
-		}
-
-		break;
-
-	default:
-		return;
-	}
-}
-
-	int
-rsaencpwd_status(ap, name, level)
-	Authenticator *ap;
-	char *name;
-	int level;
-{
-
-	if (level < AUTH_USER)
-		return(level);
-
-	if (UserNameRequested && rsaencpwd_passwdok(UserNameRequested, UserPassword)) {
-		strcpy(name, UserNameRequested);
-		return(AUTH_VALID);
-	} else {
-		return(AUTH_USER);
-	}
-}
-
-#define	BUMP(buf, len)		while (*(buf)) {++(buf), --(len);}
-#define	ADDC(buf, len, c)	if ((len) > 0) {*(buf)++ = (c); --(len);}
-
-	void
-rsaencpwd_printsub(data, cnt, buf, buflen)
-	unsigned char *data, *buf;
-	int cnt, buflen;
-{
-	char lbuf[32];
-	register int i;
-
-	buf[buflen-1] = '\0';		/* make sure its NULL terminated */
-	buflen -= 1;
-
-	switch(data[3]) {
-	case RSA_ENCPWD_REJECT:	/* Rejected (reason might follow) */
-		strncpy((char *)buf, " REJECT ", buflen);
-		goto common;
-
-	case RSA_ENCPWD_ACCEPT:	/* Accepted (name might follow) */
-		strncpy((char *)buf, " ACCEPT ", buflen);
-	common:
-		BUMP(buf, buflen);
-		if (cnt <= 4)
-			break;
-		ADDC(buf, buflen, '"');
-		for (i = 4; i < cnt; i++)
-			ADDC(buf, buflen, data[i]);
-		ADDC(buf, buflen, '"');
-		ADDC(buf, buflen, '\0');
-		break;
-
-	case RSA_ENCPWD_AUTH:		/* Authentication data follows */
-		strncpy((char *)buf, " AUTH", buflen);
-		goto common2;
-
-	case RSA_ENCPWD_CHALLENGEKEY:
-		strncpy((char *)buf, " CHALLENGEKEY", buflen);
-		goto common2;
-
-	default:
-		sprintf(lbuf, " %d (unknown)", data[3]);
-		strncpy((char *)buf, lbuf, buflen);
-	common2:
-		BUMP(buf, buflen);
-		for (i = 4; i < cnt; i++) {
-			sprintf(lbuf, " %d", data[i]);
-			strncpy((char *)buf, lbuf, buflen);
-			BUMP(buf, buflen);
-		}
-		break;
-	}
-}
-
-int rsaencpwd_passwdok(name, passwd)
-char *name, *passwd;
-{
-  char *crypt();
-  char *salt, *p;
-  struct passwd *pwd;
-  int   passwdok_status = 0;
-
-  if (pwd = getpwnam(name))
-    salt = pwd->pw_passwd;
-  else salt = "xx";
-
-  p = crypt(passwd, salt);
-
-  if (pwd && !strcmp(p, pwd->pw_passwd)) {
-    passwdok_status = 1;
-  } else passwdok_status = 0;
-  return(passwdok_status);
-}
-
-#endif
diff --git a/crypto/telnet/libtelnet/sra.c b/crypto/telnet/libtelnet/sra.c
deleted file mode 100644
index 194048532b4e..000000000000
--- a/crypto/telnet/libtelnet/sra.c
+++ /dev/null
@@ -1,602 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *      Dave Safford.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * 
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifdef	SRA
-#ifdef	ENCRYPTION
-#include <sys/types.h>
-#include <arpa/telnet.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <ttyent.h>
-
-#ifndef NOPAM
-#include <security/pam_appl.h>
-#else
-#include <unistd.h>
-#endif
-
-#include "auth.h"
-#include "misc.h"
-#include "encrypt.h"
-#include "pk.h"
-
-char pka[HEXKEYBYTES+1], ska[HEXKEYBYTES+1], pkb[HEXKEYBYTES+1];
-char *user, *pass, *xuser, *xpass;
-DesData ck;
-IdeaData ik;
-
-extern int auth_debug_mode;
-extern char line[];
-
-static int sra_valid = 0;
-static int passwd_sent = 0;
-
-static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
-			  		AUTHTYPE_SRA, };
-
-#define SRA_KEY	0
-#define SRA_USER 1
-#define SRA_CONTINUE 2
-#define SRA_PASS 3
-#define SRA_ACCEPT 4
-#define SRA_REJECT 5
-
-static int check_user(char *, char *);
-
-/* support routine to send out authentication message */
-static int
-Data(Authenticator *ap, int type, void *d, int c)
-{
-        unsigned char *p = str_data + 4;
-	unsigned char *cd = (unsigned char *)d;
-
-	if (c == -1)
-		c = strlen((char *)cd);
-
-        if (auth_debug_mode) {
-                printf("%s:%d: [%d] (%d)",
-                        str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY",
-                        str_data[3],
-                        type, c);
-                printd(d, c);
-                printf("\r\n");
-        }
-	*p++ = ap->type;
-	*p++ = ap->way;
-	*p++ = type;
-        while (c-- > 0) {
-                if ((*p++ = *cd++) == IAC)
-                        *p++ = IAC;
-        }
-        *p++ = IAC;
-        *p++ = SE;
-	if (str_data[3] == TELQUAL_IS)
-		printsub('>', &str_data[2], p - (&str_data[2]));
-        return(net_write(str_data, p - str_data));
-}
-
-int
-sra_init(Authenticator *ap __unused, int server)
-{
-	if (server)
-		str_data[3] = TELQUAL_REPLY;
-	else
-		str_data[3] = TELQUAL_IS;
-
-	user = (char *)malloc(256);
-	xuser = (char *)malloc(513);
-	pass = (char *)malloc(256);
-	xpass = (char *)malloc(513);
-
-	if (user == NULL || xuser == NULL || pass == NULL || xpass ==
-	NULL)
-		return 0; /* malloc failed */
-
-	passwd_sent = 0;
-	
-	genkeys(pka,ska);
-	return(1);
-}
-
-/* client received a go-ahead for sra */
-int
-sra_send(Authenticator *ap)
-{
-	/* send PKA */
-
-	if (auth_debug_mode)
-		printf("Sent PKA to server.\r\n" );
-	printf("Trying SRA secure login:\r\n");
-	if (!Data(ap, SRA_KEY, (void *)pka, HEXKEYBYTES)) {
-		if (auth_debug_mode)
-			printf("Not enough room for authentication data\r\n");
-		return(0);
-	}
-
-	return(1);
-}
-
-/* server received an IS -- could be SRA KEY, USER, or PASS */
-void
-sra_is(Authenticator *ap, unsigned char *data, int cnt)
-{
-	int valid;
-	Session_Key skey;
-
-	if (cnt-- < 1)
-		goto bad;
-	switch (*data++) {
-
-	case SRA_KEY:
-		if (cnt < HEXKEYBYTES) {
-			Data(ap, SRA_REJECT, (void *)0, 0);
-			auth_finished(ap, AUTH_USER);
-			if (auth_debug_mode) {
-				printf("SRA user rejected for bad PKB\r\n");
-			}
-			return;
-		}
-		if (auth_debug_mode)
-			printf("Sent pka\r\n");
-		if (!Data(ap, SRA_KEY, (void *)pka, HEXKEYBYTES)) {
-			if (auth_debug_mode)
-				printf("Not enough room\r\n");
-			return;
-		}
-		memcpy(pkb,data,HEXKEYBYTES);
-		pkb[HEXKEYBYTES] = '\0';
-		common_key(ska,pkb,&ik,&ck);
-		return;
-
-	case SRA_USER:
-		/* decode KAB(u) */
-		if (cnt > 512) /* Attempted buffer overflow */
-			break;
-		memcpy(xuser,data,cnt);
-		xuser[cnt] = '\0';
-		pk_decode(xuser,user,&ck);
-		auth_encrypt_user(user);
-		Data(ap, SRA_CONTINUE, (void *)0, 0);
-
-		return;
-
-	case SRA_PASS:
-		if (cnt > 512) /* Attempted buffer overflow */
-			break;
-		/* decode KAB(P) */
-		memcpy(xpass,data,cnt);
-		xpass[cnt] = '\0';
-		pk_decode(xpass,pass,&ck);
-
-		/* check user's password */
-		valid = check_user(user,pass);
-
-		if(valid) {
-			Data(ap, SRA_ACCEPT, (void *)0, 0);
-			skey.data = ck;
-			skey.type = SK_DES;
-			skey.length = 8;
-			encrypt_session_key(&skey, 1);
-
-			sra_valid = 1;
-			auth_finished(ap, AUTH_VALID);
-			if (auth_debug_mode) {
-				printf("SRA user accepted\r\n");
-			}
-		}
-		else {
-			Data(ap, SRA_CONTINUE, (void *)0, 0);
-/*
-			Data(ap, SRA_REJECT, (void *)0, 0);
-			sra_valid = 0;
-			auth_finished(ap, AUTH_REJECT);
-*/
-			if (auth_debug_mode) {
-				printf("SRA user failed\r\n");
-			}
-		}
-		return;
-
-	default:
-		if (auth_debug_mode)
-			printf("Unknown SRA option %d\r\n", data[-1]);
-	}
-bad:
-	Data(ap, SRA_REJECT, 0, 0);
-	sra_valid = 0;
-	auth_finished(ap, AUTH_REJECT);
-}
-
-/* client received REPLY -- could be SRA KEY, CONTINUE, ACCEPT, or REJECT */
-void
-sra_reply(Authenticator *ap, unsigned char *data, int cnt)
-{
-	char uprompt[256],tuser[256];
-	Session_Key skey;
-	size_t i;
-
-	if (cnt-- < 1)
-		return;
-	switch (*data++) {
-
-	case SRA_KEY:
-		/* calculate common key */
-		if (cnt < HEXKEYBYTES) {
-			if (auth_debug_mode) {
-				printf("SRA user rejected for bad PKB\r\n");
-			}
-			return;
-		}
-		memcpy(pkb,data,HEXKEYBYTES);
-		pkb[HEXKEYBYTES] = '\0';		
-
-		common_key(ska,pkb,&ik,&ck);
-
-	enc_user:
-
-		/* encode user */
-		memset(tuser,0,sizeof(tuser));
-		sprintf(uprompt,"User (%s): ",UserNameRequested);
-		telnet_gets(uprompt,tuser,255,1);
-		if (tuser[0] == '\n' || tuser[0] == '\r' )
-			strcpy(user,UserNameRequested);
-		else {
-			/* telnet_gets leaves the newline on */
-			for(i=0;i<sizeof(tuser);i++) {
-				if (tuser[i] == '\n') {
-					tuser[i] = '\0';
-					break;
-				}
-			}
-			strcpy(user,tuser);
-		}
-		pk_encode(user,xuser,&ck);
-
-		/* send it off */
-		if (auth_debug_mode)
-			printf("Sent KAB(U)\r\n");
-		if (!Data(ap, SRA_USER, (void *)xuser, strlen(xuser))) {
-			if (auth_debug_mode)
-				printf("Not enough room\r\n");
-			return;
-		}
-		break;
-
-	case SRA_CONTINUE:
-		if (passwd_sent) {
-			passwd_sent = 0;
-			printf("[ SRA login failed ]\r\n");
-			goto enc_user;
-		}
-		/* encode password */
-		memset(pass,0,sizeof(pass));
-		telnet_gets("Password: ",pass,255,0);
-		pk_encode(pass,xpass,&ck);
-		/* send it off */
-		if (auth_debug_mode)
-			printf("Sent KAB(P)\r\n");
-		if (!Data(ap, SRA_PASS, (void *)xpass, strlen(xpass))) {
-			if (auth_debug_mode)
-				printf("Not enough room\r\n");
-			return;
-		}
-		passwd_sent = 1;
-		break;
-
-	case SRA_REJECT:
-		printf("[ SRA refuses authentication ]\r\n");
-		printf("Trying plaintext login:\r\n");
-		auth_finished(0,AUTH_REJECT);
-		return;
-
-	case SRA_ACCEPT:
-		printf("[ SRA accepts you ]\r\n");
-		skey.data = ck;
-		skey.type = SK_DES;
-		skey.length = 8;
-		encrypt_session_key(&skey, 0);
-
-		auth_finished(ap, AUTH_VALID);
-		return;
-	default:
-		if (auth_debug_mode)
-			printf("Unknown SRA option %d\r\n", data[-1]);
-		return;
-	}
-}
-
-int
-sra_status(Authenticator *ap __unused, char *name, int level)
-{
-	if (level < AUTH_USER)
-		return(level);
-	if (UserNameRequested && sra_valid) {
-		strcpy(name, UserNameRequested);
-		return(AUTH_VALID);
-	} else
-		return(AUTH_USER);
-}
-
-#define	BUMP(buf, len)		while (*(buf)) {++(buf), --(len);}
-#define	ADDC(buf, len, c)	if ((len) > 0) {*(buf)++ = (c); --(len);}
-
-void
-sra_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen)
-{
-	char lbuf[32];
-	int i;
-
-	buf[buflen-1] = '\0';		/* make sure its NULL terminated */
-	buflen -= 1;
-
-	switch(data[3]) {
-
-	case SRA_CONTINUE:
-		strncpy((char *)buf, " CONTINUE ", buflen);
-		goto common;
-
-	case SRA_REJECT:		/* Rejected (reason might follow) */
-		strncpy((char *)buf, " REJECT ", buflen);
-		goto common;
-
-	case SRA_ACCEPT:		/* Accepted (name might follow) */
-		strncpy((char *)buf, " ACCEPT ", buflen);
-
-	common:
-		BUMP(buf, buflen);
-		if (cnt <= 4)
-			break;
-		ADDC(buf, buflen, '"');
-		for (i = 4; i < cnt; i++)
-			ADDC(buf, buflen, data[i]);
-		ADDC(buf, buflen, '"');
-		ADDC(buf, buflen, '\0');
-		break;
-
-	case SRA_KEY:			/* Authentication data follows */
-		strncpy((char *)buf, " KEY ", buflen);
-		goto common2;
-
-	case SRA_USER:
-		strncpy((char *)buf, " USER ", buflen);
-		goto common2;
-
-	case SRA_PASS:
-		strncpy((char *)buf, " PASS ", buflen);
-		goto common2;
-
-	default:
-		sprintf(lbuf, " %d (unknown)", data[3]);
-		strncpy((char *)buf, lbuf, buflen);
-	common2:
-		BUMP(buf, buflen);
-		for (i = 4; i < cnt; i++) {
-			sprintf(lbuf, " %d", data[i]);
-			strncpy((char *)buf, lbuf, buflen);
-			BUMP(buf, buflen);
-		}
-		break;
-	}
-}
-
-static int
-isroot(const char *usr)
-{
-	struct passwd *pwd;
-
-	if ((pwd=getpwnam(usr))==NULL)
-		return 0;
-	return (!pwd->pw_uid);
-}
-
-static int
-rootterm(char *ttyn)
-{
-	struct ttyent *t;
-
-	return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
-}
-
-#ifdef NOPAM
-static int
-check_user(char *name, char *cred)
-{
-	char *cp;
-	char *xpasswd, *salt;
-
-	if (isroot(name) && !rootterm(line))
-	{
-		crypt("AA","*"); /* Waste some time to simulate success */
-		return(0);
-	}
-
-	if (pw = sgetpwnam(name)) {
-		if (pw->pw_shell == NULL) {
-			pw = (struct passwd *) NULL;
-			return(0);
-		}
-
-		salt = pw->pw_passwd;
-		xpasswd = crypt(cred, salt);
-		/* The strcmp does not catch null passwords! */
-		if (pw == NULL || *pw->pw_passwd == '\0' ||
-			strcmp(xpasswd, pw->pw_passwd)) {
-			pw = (struct passwd *) NULL;
-			return(0);
-		}
-		return(1);
-	}
-	return(0);
-}
-#else
-
-/*
- * The following is stolen from ftpd, which stole it from the imap-uw
- * PAM module and login.c. It is needed because we can't really
- * "converse" with the user, having already gone to the trouble of
- * getting their username and password through an encrypted channel.
- */
-
-#define COPY_STRING(s) (s ? strdup(s):NULL)
-
-struct cred_t {
-	const char *uname;
-	const char *pass;
-};
-typedef struct cred_t cred_t;
-
-static int
-auth_conv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata)
-{
-	int i;
-	cred_t *cred = (cred_t *) appdata;
-	struct pam_response *reply =
-		malloc(sizeof(struct pam_response) * num_msg);
-
-	if (reply == NULL)
-		return PAM_BUF_ERR;
-
-	for (i = 0; i < num_msg; i++) {
-		switch (msg[i]->msg_style) {
-		case PAM_PROMPT_ECHO_ON:        /* assume want user name */
-			reply[i].resp_retcode = PAM_SUCCESS;
-			reply[i].resp = COPY_STRING(cred->uname);
-			/* PAM frees resp. */
-			break;
-		case PAM_PROMPT_ECHO_OFF:       /* assume want password */
-			reply[i].resp_retcode = PAM_SUCCESS;
-			reply[i].resp = COPY_STRING(cred->pass);
-			/* PAM frees resp. */
-			break;
-		case PAM_TEXT_INFO:
-		case PAM_ERROR_MSG:
-			reply[i].resp_retcode = PAM_SUCCESS;
-			reply[i].resp = NULL;
-			break;
-		default:                        /* unknown message style */
-			free(reply);
-			return PAM_CONV_ERR;
-		}
-	}
-
-	*resp = reply;
-	return PAM_SUCCESS;
-}
-
-/*
- * The PAM version as a side effect may put a new username in *name.
- */
-static int
-check_user(char *name, char *cred)
-{
-	pam_handle_t *pamh = NULL;
-	const void *item;
-	int rval;
-	int e;
-	cred_t auth_cred = { name, cred };
-	struct pam_conv conv = { &auth_conv, &auth_cred };
-
-	e = pam_start("telnetd", name, &conv, &pamh);
-	if (e != PAM_SUCCESS) {
-		syslog(LOG_ERR, "pam_start: %s", pam_strerror(pamh, e));
-		return 0;
-	}
-
-#if 0 /* Where can we find this value? */
-	e = pam_set_item(pamh, PAM_RHOST, remotehost);
-	if (e != PAM_SUCCESS) {
-		syslog(LOG_ERR, "pam_set_item(PAM_RHOST): %s",
-			pam_strerror(pamh, e));
-		return 0;
-	}
-#endif
-
-	e = pam_authenticate(pamh, 0);
-	switch (e) {
-	case PAM_SUCCESS:
-		/*
-		 * With PAM we support the concept of a "template"
-		 * user.  The user enters a login name which is
-		 * authenticated by PAM, usually via a remote service
-		 * such as RADIUS or TACACS+.  If authentication
-		 * succeeds, a different but related "template" name
-		 * is used for setting the credentials, shell, and
-		 * home directory.  The name the user enters need only
-		 * exist on the remote authentication server, but the
-		 * template name must be present in the local password
-		 * database.
-		 *
-		 * This is supported by two various mechanisms in the
-		 * individual modules.  However, from the application's
-		 * point of view, the template user is always passed
-		 * back as a changed value of the PAM_USER item.
-		 */
-		if ((e = pam_get_item(pamh, PAM_USER, &item)) ==
-		    PAM_SUCCESS) {
-			strcpy(name, item);
-		} else
-			syslog(LOG_ERR, "Couldn't get PAM_USER: %s",
-			pam_strerror(pamh, e));
-		if (isroot(name) && !rootterm(line))
-			rval = 0;
-		else
-			rval = 1;
-		break;
-
-	case PAM_AUTH_ERR:
-	case PAM_USER_UNKNOWN:
-	case PAM_MAXTRIES:
-		rval = 0;
-	break;
-
-	default:
-		syslog(LOG_ERR, "auth_pam: %s", pam_strerror(pamh, e));
-		rval = 0;
-		break;
-	}
-
-	if ((e = pam_end(pamh, e)) != PAM_SUCCESS) {
-		syslog(LOG_ERR, "pam_end: %s", pam_strerror(pamh, e));
-		rval = 0;
-	}
-	return rval;
-}
-
-#endif
-
-#endif /* ENCRYPTION */
-#endif /* SRA */
diff --git a/crypto/telnet/telnet/authenc.c b/crypto/telnet/telnet/authenc.c
deleted file mode 100644
index 85f389b2e55d..000000000000
--- a/crypto/telnet/telnet/authenc.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)authenc.c	8.1 (Berkeley) 6/6/93";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-#include <sys/types.h>
-#include <arpa/telnet.h>
-#include <pwd.h>
-#include <unistd.h>
-#include <libtelnet/encrypt.h>
-#include <libtelnet/misc.h>
-
-#include "general.h"
-#include "ring.h"
-#include "externs.h"
-#include "defines.h"
-#include "types.h"
-
-int
-net_write(unsigned char *str, int len)
-{
-	if (NETROOM() > len) {
-		ring_supply_data(&netoring, str, len);
-		if (str[0] == IAC && str[1] == SE)
-			printsub('>', &str[2], len-2);
-		return(len);
-	}
-	return(0);
-}
-
-void
-net_encrypt(void)
-{
-#ifdef	ENCRYPTION
-	if (encrypt_output)
-		ring_encrypt(&netoring, encrypt_output);
-	else
-		ring_clearto(&netoring);
-#endif	/* ENCRYPTION */
-}
-
-int
-telnet_spin(void)
-{
-	return(-1);
-}
-
-char *
-telnet_getenv(char *val)
-{
-	return((char *)env_getvalue((unsigned char *)val));
-}
-
-char *
-telnet_gets(const char *prom, char *result, int length, int echo)
-{
-	extern int globalmode;
-	int om = globalmode;
-	char *res;
-
-	TerminalNewMode(-1);
-	if (echo) {
-		printf("%s", prom);
-		res = fgets(result, length, stdin);
-	} else if ((res = getpass(prom))) {
-		strncpy(result, res, length);
-		res = result;
-	}
-	TerminalNewMode(om);
-	return(res);
-}
-#endif	/* ENCRYPTION */
-#endif	/* AUTHENTICATION */
diff --git a/crypto/telnet/telnet/commands.c b/crypto/telnet/telnet/commands.c
deleted file mode 100644
index 32aca9f751c4..000000000000
--- a/crypto/telnet/telnet/commands.c
+++ /dev/null
@@ -1,3014 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)commands.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/un.h>
-#include <sys/file.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <netdb.h>
-#include <pwd.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <arpa/telnet.h>
-#include <arpa/inet.h>
-
-#include "general.h"
-
-#include "ring.h"
-
-#include "externs.h"
-#include "defines.h"
-#include "types.h"
-#include "misc.h"
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip6.h>
-
-#ifndef       MAXHOSTNAMELEN
-#define       MAXHOSTNAMELEN 256
-#endif
-
-typedef int (*intrtn_t)(int, char **);
-
-#ifdef	AUTHENTICATION
-extern int auth_togdebug(int);
-#endif
-#ifdef	ENCRYPTION
-extern int EncryptAutoEnc(int);
-extern int EncryptAutoDec(int);
-extern int EncryptDebug(int);
-extern int EncryptVerbose(int);
-#endif	/* ENCRYPTION */
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-int tos = -1;
-#endif	/* defined(IPPROTO_IP) && defined(IP_TOS) */
-
-char	*hostname;
-static char _hostname[MAXHOSTNAMELEN];
-
-static int help(int, char **);
-static int call(intrtn_t, ...);
-static void cmdrc(char *, char *);
-#ifdef INET6
-static int switch_af(struct addrinfo **);
-#endif
-static int togglehelp(void);
-static int send_tncmd(void (*)(int, int), const char *, char *);
-static int setmod(int);
-static int clearmode(int);
-static int modehelp(void);
-static int sourceroute(struct addrinfo *, char *, char **, int *, int *, int *);
-
-typedef struct {
-	const char *name;	/* command name */
-	const char *help;	/* help string (NULL for no help) */
-	int	(*handler)(int, char **); /* routine which executes command */
-	int	needconnect;	/* Do we need to be connected to execute? */
-} Command;
-
-static char line[256];
-static char saveline[256];
-static int margc;
-static char *margv[20];
-
-#ifdef OPIE
-#include <sys/wait.h>
-#define PATH_OPIEKEY	"/usr/bin/opiekey"
-static int
-opie_calc(int argc, char *argv[])
-{
-	int status;
-
-	if(argc != 3) {
-		printf("%s sequence challenge\n", argv[0]);
-		return (0);
-	}
-
-	switch(fork()) {
-	case 0:
-		execv(PATH_OPIEKEY, argv);
-		exit (1);
-	case -1:
-		perror("fork");
-		break;
-	default:
-		(void) wait(&status);
-		if (WIFEXITED(status))
-			return (WEXITSTATUS(status));
-	}
-	return (0);
-}
-#endif
-
-static void
-makeargv(void)
-{
-    char *cp, *cp2, c;
-    char **argp = margv;
-
-    margc = 0;
-    cp = line;
-    if (*cp == '!') {		/* Special case shell escape */
-	strcpy(saveline, line);	/* save for shell command */
-	*argp++ = strdup("!");		/* No room in string to get this */
-	margc++;
-	cp++;
-    }
-    while ((c = *cp)) {
-	int inquote = 0;
-	while (isspace(c))
-	    c = *++cp;
-	if (c == '\0')
-	    break;
-	*argp++ = cp;
-	margc += 1;
-	for (cp2 = cp; c != '\0'; c = *++cp) {
-	    if (inquote) {
-		if (c == inquote) {
-		    inquote = 0;
-		    continue;
-		}
-	    } else {
-		if (c == '\\') {
-		    if ((c = *++cp) == '\0')
-			break;
-		} else if (c == '"') {
-		    inquote = '"';
-		    continue;
-		} else if (c == '\'') {
-		    inquote = '\'';
-		    continue;
-		} else if (isspace(c))
-		    break;
-	    }
-	    *cp2++ = c;
-	}
-	*cp2 = '\0';
-	if (c == '\0')
-	    break;
-	cp++;
-    }
-    *argp++ = 0;
-}
-
-/*
- * Make a character string into a number.
- *
- * Todo:  1.  Could take random integers (12, 0x12, 012, 0b1).
- */
-
-static int
-special(char *s)
-{
-	char c;
-	char b;
-
-	switch (*s) {
-	case '^':
-		b = *++s;
-		if (b == '?') {
-		    c = b | 0x40;		/* DEL */
-		} else {
-		    c = b & 0x1f;
-		}
-		break;
-	default:
-		c = *s;
-		break;
-	}
-	return c;
-}
-
-/*
- * Construct a control character sequence
- * for a special character.
- */
-static const char *
-control(cc_t c)
-{
-	static char buf[5];
-	/*
-	 * The only way I could get the Sun 3.5 compiler
-	 * to shut up about
-	 *	if ((unsigned int)c >= 0x80)
-	 * was to assign "c" to an unsigned int variable...
-	 * Arggg....
-	 */
-	unsigned int uic = (unsigned int)c;
-
-	if (uic == 0x7f)
-		return ("^?");
-	if (c == (cc_t)_POSIX_VDISABLE) {
-		return "off";
-	}
-	if (uic >= 0x80) {
-		buf[0] = '\\';
-		buf[1] = ((c>>6)&07) + '0';
-		buf[2] = ((c>>3)&07) + '0';
-		buf[3] = (c&07) + '0';
-		buf[4] = 0;
-	} else if (uic >= 0x20) {
-		buf[0] = c;
-		buf[1] = 0;
-	} else {
-		buf[0] = '^';
-		buf[1] = '@'+c;
-		buf[2] = 0;
-	}
-	return (buf);
-}
-
-/*
- *	The following are data structures and routines for
- *	the "send" command.
- *
- */
-
-struct sendlist {
-    const char	*name;		/* How user refers to it (case independent) */
-    const char	*help;		/* Help information (0 ==> no help) */
-    int		needconnect;	/* Need to be connected */
-    int		narg;		/* Number of arguments */
-    int		(*handler)(char *, ...); /* Routine to perform (for special ops) */
-    int		nbyte;		/* Number of bytes to send this command */
-    int		what;		/* Character to be sent (<0 ==> special) */
-};
-
-
-static int
-	send_esc(void),
-	send_help(void),
-	send_docmd(char *),
-	send_dontcmd(char *),
-	send_willcmd(char *),
-	send_wontcmd(char *);
-
-static struct sendlist Sendlist[] = {
-    { "ao",	"Send Telnet Abort output",	1, 0, NULL, 2, AO },
-    { "ayt",	"Send Telnet 'Are You There'",	1, 0, NULL, 2, AYT },
-    { "brk",	"Send Telnet Break",		1, 0, NULL, 2, BREAK },
-    { "break",	NULL,				1, 0, NULL, 2, BREAK },
-    { "ec",	"Send Telnet Erase Character",	1, 0, NULL, 2, EC },
-    { "el",	"Send Telnet Erase Line",	1, 0, NULL, 2, EL },
-    { "escape",	"Send current escape character",1, 0, (int (*)(char *, ...))send_esc, 1, 0 },
-    { "ga",	"Send Telnet 'Go Ahead' sequence", 1, 0, NULL, 2, GA },
-    { "ip",	"Send Telnet Interrupt Process",1, 0, NULL, 2, IP },
-    { "intp",	NULL,				1, 0, NULL, 2, IP },
-    { "interrupt", NULL,			1, 0, NULL, 2, IP },
-    { "intr",	NULL,				1, 0, NULL, 2, IP },
-    { "nop",	"Send Telnet 'No operation'",	1, 0, NULL, 2, NOP },
-    { "eor",	"Send Telnet 'End of Record'",	1, 0, NULL, 2, EOR },
-    { "abort",	"Send Telnet 'Abort Process'",	1, 0, NULL, 2, ABORT },
-    { "susp",	"Send Telnet 'Suspend Process'",1, 0, NULL, 2, SUSP },
-    { "eof",	"Send Telnet End of File Character", 1, 0, NULL, 2, xEOF },
-    { "synch",	"Perform Telnet 'Synch operation'", 1, 0, (int (*)(char *, ...))dosynch, 2, 0 },
-    { "getstatus", "Send request for STATUS",	1, 0, (int (*)(char *, ...))get_status, 6, 0 },
-    { "?",	"Display send options",		0, 0, (int (*)(char *, ...))send_help, 0, 0 },
-    { "help",	NULL,				0, 0, (int (*)(char *, ...))send_help, 0, 0 },
-    { "do",	NULL,				0, 1, (int (*)(char *, ...))send_docmd, 3, 0 },
-    { "dont",	NULL,				0, 1, (int (*)(char *, ...))send_dontcmd, 3, 0 },
-    { "will",	NULL,				0, 1, (int (*)(char *, ...))send_willcmd, 3, 0 },
-    { "wont",	NULL,				0, 1, (int (*)(char *, ...))send_wontcmd, 3, 0 },
-    { NULL,	NULL,				0, 0, NULL, 0, 0 }
-};
-
-#define	GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \
-				sizeof(struct sendlist)))
-
-static int
-sendcmd(int argc, char *argv[])
-{
-    int count;		/* how many bytes we are going to need to send */
-    int i;
-    struct sendlist *s;	/* pointer to current command */
-    int success = 0;
-    int needconnect = 0;
-
-    if (argc < 2) {
-	printf("need at least one argument for 'send' command\n");
-	printf("'send ?' for help\n");
-	return 0;
-    }
-    /*
-     * First, validate all the send arguments.
-     * In addition, we see how much space we are going to need, and
-     * whether or not we will be doing a "SYNCH" operation (which
-     * flushes the network queue).
-     */
-    count = 0;
-    for (i = 1; i < argc; i++) {
-	s = GETSEND(argv[i]);
-	if (s == 0) {
-	    printf("Unknown send argument '%s'\n'send ?' for help.\n",
-			argv[i]);
-	    return 0;
-	} else if (Ambiguous((void *)s)) {
-	    printf("Ambiguous send argument '%s'\n'send ?' for help.\n",
-			argv[i]);
-	    return 0;
-	}
-	if (i + s->narg >= argc) {
-	    fprintf(stderr,
-	    "Need %d argument%s to 'send %s' command.  'send %s ?' for help.\n",
-		s->narg, s->narg == 1 ? "" : "s", s->name, s->name);
-	    return 0;
-	}
-	count += s->nbyte;
-	if ((void *)s->handler == (void *)send_help) {
-	    send_help();
-	    return 0;
-	}
-
-	i += s->narg;
-	needconnect += s->needconnect;
-    }
-    if (!connected && needconnect) {
-	printf("?Need to be connected first.\n");
-	printf("'send ?' for help\n");
-	return 0;
-    }
-    /* Now, do we have enough room? */
-    if (NETROOM() < count) {
-	printf("There is not enough room in the buffer TO the network\n");
-	printf("to process your request.  Nothing will be done.\n");
-	printf("('send synch' will throw away most data in the network\n");
-	printf("buffer, if this might help.)\n");
-	return 0;
-    }
-    /* OK, they are all OK, now go through again and actually send */
-    count = 0;
-    for (i = 1; i < argc; i++) {
-	if ((s = GETSEND(argv[i])) == 0) {
-	    fprintf(stderr, "Telnet 'send' error - argument disappeared!\n");
-	    quit();
-	    /*NOTREACHED*/
-	}
-	if (s->handler) {
-	    count++;
-	    success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0,
-				  (s->narg > 1) ? argv[i+2] : 0);
-	    i += s->narg;
-	} else {
-	    NET2ADD(IAC, s->what);
-	    printoption("SENT", IAC, s->what);
-	}
-    }
-    return (count == success);
-}
-
-static int
-send_esc(void)
-{
-    NETADD(escape);
-    return 1;
-}
-
-static int
-send_docmd(char *name)
-{
-    return(send_tncmd(send_do, "do", name));
-}
-
-static int
-send_dontcmd(name)
-    char *name;
-{
-    return(send_tncmd(send_dont, "dont", name));
-}
-
-static int
-send_willcmd(char *name)
-{
-    return(send_tncmd(send_will, "will", name));
-}
-
-static int
-send_wontcmd(char *name)
-{
-    return(send_tncmd(send_wont, "wont", name));
-}
-
-static int
-send_tncmd(void (*func)(int, int), const char *cmd, char *name)
-{
-    char **cpp;
-    extern char *telopts[];
-    int val = 0;
-
-    if (isprefix(name, "help") || isprefix(name, "?")) {
-	int col, len;
-
-	printf("usage: send %s <value|option>\n", cmd);
-	printf("\"value\" must be from 0 to 255\n");
-	printf("Valid options are:\n\t");
-
-	col = 8;
-	for (cpp = telopts; *cpp; cpp++) {
-	    len = strlen(*cpp) + 3;
-	    if (col + len > 65) {
-		printf("\n\t");
-		col = 8;
-	    }
-	    printf(" \"%s\"", *cpp);
-	    col += len;
-	}
-	printf("\n");
-	return 0;
-    }
-    cpp = (char **)genget(name, telopts, sizeof(char *));
-    if (Ambiguous(cpp)) {
-	fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n",
-					name, cmd);
-	return 0;
-    }
-    if (cpp) {
-	val = cpp - telopts;
-    } else {
-	char *cp = name;
-
-	while (*cp >= '0' && *cp <= '9') {
-	    val *= 10;
-	    val += *cp - '0';
-	    cp++;
-	}
-	if (*cp != 0) {
-	    fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n",
-					name, cmd);
-	    return 0;
-	} else if (val < 0 || val > 255) {
-	    fprintf(stderr, "'%s': bad value ('send %s ?' for help).\n",
-					name, cmd);
-	    return 0;
-	}
-    }
-    if (!connected) {
-	printf("?Need to be connected first.\n");
-	return 0;
-    }
-    (*func)(val, 1);
-    return 1;
-}
-
-static int
-send_help(void)
-{
-    struct sendlist *s;	/* pointer to current command */
-    for (s = Sendlist; s->name; s++) {
-	if (s->help)
-	    printf("%-15s %s\n", s->name, s->help);
-    }
-    return(0);
-}
-
-/*
- * The following are the routines and data structures referred
- * to by the arguments to the "toggle" command.
- */
-
-static int
-lclchars(void)
-{
-    donelclchars = 1;
-    return 1;
-}
-
-static int
-togdebug(void)
-{
-#ifndef	NOT43
-    if (net > 0 &&
-	(SetSockOpt(net, SOL_SOCKET, SO_DEBUG, telnet_debug)) < 0) {
-	    perror("setsockopt (SO_DEBUG)");
-    }
-#else	/* NOT43 */
-    if (telnet_debug) {
-	if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0)
-	    perror("setsockopt (SO_DEBUG)");
-    } else
-	printf("Cannot turn off socket debugging\n");
-#endif	/* NOT43 */
-    return 1;
-}
-
-
-static int
-togcrlf(void)
-{
-    if (crlf) {
-	printf("Will send carriage returns as telnet <CR><LF>.\n");
-    } else {
-	printf("Will send carriage returns as telnet <CR><NUL>.\n");
-    }
-    return 1;
-}
-
-int binmode;
-
-static int
-togbinary(int val)
-{
-    donebinarytoggle = 1;
-
-    if (val >= 0) {
-	binmode = val;
-    } else {
-	if (my_want_state_is_will(TELOPT_BINARY) &&
-				my_want_state_is_do(TELOPT_BINARY)) {
-	    binmode = 1;
-	} else if (my_want_state_is_wont(TELOPT_BINARY) &&
-				my_want_state_is_dont(TELOPT_BINARY)) {
-	    binmode = 0;
-	}
-	val = binmode ? 0 : 1;
-    }
-
-    if (val == 1) {
-	if (my_want_state_is_will(TELOPT_BINARY) &&
-					my_want_state_is_do(TELOPT_BINARY)) {
-	    printf("Already operating in binary mode with remote host.\n");
-	} else {
-	    printf("Negotiating binary mode with remote host.\n");
-	    tel_enter_binary(3);
-	}
-    } else {
-	if (my_want_state_is_wont(TELOPT_BINARY) &&
-					my_want_state_is_dont(TELOPT_BINARY)) {
-	    printf("Already in network ascii mode with remote host.\n");
-	} else {
-	    printf("Negotiating network ascii mode with remote host.\n");
-	    tel_leave_binary(3);
-	}
-    }
-    return 1;
-}
-
-static int
-togrbinary(int val)
-{
-    donebinarytoggle = 1;
-
-    if (val == -1)
-	val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1;
-
-    if (val == 1) {
-	if (my_want_state_is_do(TELOPT_BINARY)) {
-	    printf("Already receiving in binary mode.\n");
-	} else {
-	    printf("Negotiating binary mode on input.\n");
-	    tel_enter_binary(1);
-	}
-    } else {
-	if (my_want_state_is_dont(TELOPT_BINARY)) {
-	    printf("Already receiving in network ascii mode.\n");
-	} else {
-	    printf("Negotiating network ascii mode on input.\n");
-	    tel_leave_binary(1);
-	}
-    }
-    return 1;
-}
-
-static int
-togxbinary(int val)
-{
-    donebinarytoggle = 1;
-
-    if (val == -1)
-	val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1;
-
-    if (val == 1) {
-	if (my_want_state_is_will(TELOPT_BINARY)) {
-	    printf("Already transmitting in binary mode.\n");
-	} else {
-	    printf("Negotiating binary mode on output.\n");
-	    tel_enter_binary(2);
-	}
-    } else {
-	if (my_want_state_is_wont(TELOPT_BINARY)) {
-	    printf("Already transmitting in network ascii mode.\n");
-	} else {
-	    printf("Negotiating network ascii mode on output.\n");
-	    tel_leave_binary(2);
-	}
-    }
-    return 1;
-}
-
-struct togglelist {
-    const char	*name;		/* name of toggle */
-    const char	*help;		/* help message */
-    int		(*handler)(int); /* routine to do actual setting */
-    int		*variable;
-    const char	*actionexplanation;
-};
-
-static struct togglelist Togglelist[] = {
-    { "autoflush",
-	"flushing of output when sending interrupt characters",
-	    0,
-		&autoflush,
-		    "flush output when sending interrupt characters" },
-    { "autosynch",
-	"automatic sending of interrupt characters in urgent mode",
-	    0,
-		&autosynch,
-		    "send interrupt characters in urgent mode" },
-#ifdef	AUTHENTICATION
-    { "autologin",
-	"automatic sending of login and/or authentication info",
-	    0,
-		&autologin,
-		    "send login name and/or authentication information" },
-    { "authdebug",
-	"Toggle authentication debugging",
-	    auth_togdebug,
-		0,
-		     "print authentication debugging information" },
-#endif
-#ifdef	ENCRYPTION
-    { "autoencrypt",
-	"automatic encryption of data stream",
-	    EncryptAutoEnc,
-		0,
-		    "automatically encrypt output" },
-    { "autodecrypt",
-	"automatic decryption of data stream",
-	    EncryptAutoDec,
-		0,
-		    "automatically decrypt input" },
-    { "verbose_encrypt",
-	"Toggle verbose encryption output",
-	    EncryptVerbose,
-		0,
-		    "print verbose encryption output" },
-    { "encdebug",
-	"Toggle encryption debugging",
-	    EncryptDebug,
-		0,
-		    "print encryption debugging information" },
-#endif	/* ENCRYPTION */
-    { "skiprc",
-	"don't read ~/.telnetrc file",
-	    0,
-		&skiprc,
-		    "skip reading of ~/.telnetrc file" },
-    { "binary",
-	"sending and receiving of binary data",
-	    togbinary,
-		0,
-		    0 },
-    { "inbinary",
-	"receiving of binary data",
-	    togrbinary,
-		0,
-		    0 },
-    { "outbinary",
-	"sending of binary data",
-	    togxbinary,
-		0,
-		    0 },
-    { "crlf",
-	"sending carriage returns as telnet <CR><LF>",
-	    (int (*)(int))togcrlf,
-		&crlf,
-		    0 },
-    { "crmod",
-	"mapping of received carriage returns",
-	    0,
-		&crmod,
-		    "map carriage return on output" },
-    { "localchars",
-	"local recognition of certain control characters",
-	    (int (*)(int))lclchars,
-		&localchars,
-		    "recognize certain control characters" },
-    { " ", "", NULL, NULL, NULL },		/* empty line */
-    { "debug",
-	"debugging",
-	    (int (*)(int))togdebug,
-		&telnet_debug,
-		    "turn on socket level debugging" },
-    { "netdata",
-	"printing of hexadecimal network data (debugging)",
-	    0,
-		&netdata,
-		    "print hexadecimal representation of network traffic" },
-    { "prettydump",
-	"output of \"netdata\" to user readable format (debugging)",
-	    0,
-		&prettydump,
-		    "print user readable output for \"netdata\"" },
-    { "options",
-	"viewing of options processing (debugging)",
-	    0,
-		&showoptions,
-		    "show option processing" },
-    { "termdata",
-	"(debugging) toggle printing of hexadecimal terminal data",
-	    0,
-		&termdata,
-		    "print hexadecimal representation of terminal traffic" },
-    { "?",
-	NULL,
-	    (int (*)(int))togglehelp,
-		NULL,
-		    NULL },
-    { NULL, NULL, NULL, NULL, NULL },
-    { "help",
-	NULL,
-	    (int (*)(int))togglehelp,
-		NULL,
-		    NULL },
-    { NULL, NULL, NULL, NULL, NULL }
-};
-
-static int
-togglehelp(void)
-{
-    struct togglelist *c;
-
-    for (c = Togglelist; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s toggle %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-    printf("\n");
-    printf("%-15s %s\n", "?", "display help information");
-    return 0;
-}
-
-static void
-settogglehelp(int set)
-{
-    struct togglelist *c;
-
-    for (c = Togglelist; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s %s\n", c->name, set ? "enable" : "disable",
-						c->help);
-	    else
-		printf("\n");
-	}
-    }
-}
-
-#define	GETTOGGLE(name) (struct togglelist *) \
-		genget(name, (char **) Togglelist, sizeof(struct togglelist))
-
-static int
-toggle(int argc, char *argv[])
-{
-    int retval = 1;
-    char *name;
-    struct togglelist *c;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'toggle' command.  'toggle ?' for help.\n");
-	return 0;
-    }
-    argc--;
-    argv++;
-    while (argc--) {
-	name = *argv++;
-	c = GETTOGGLE(name);
-	if (Ambiguous((void *)c)) {
-	    fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n",
-					name);
-	    return 0;
-	} else if (c == 0) {
-	    fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n",
-					name);
-	    return 0;
-	} else {
-	    if (c->variable) {
-		*c->variable = !*c->variable;		/* invert it */
-		if (c->actionexplanation) {
-		    printf("%s %s.\n", *c->variable? "Will" : "Won't",
-							c->actionexplanation);
-		}
-	    }
-	    if (c->handler) {
-		retval &= (*c->handler)(-1);
-	    }
-	}
-    }
-    return retval;
-}
-
-/*
- * The following perform the "set" command.
- */
-
-#ifdef	USE_TERMIO
-struct termio new_tc = { 0, 0, 0, 0, {}, 0, 0 };
-#endif
-
-struct setlist {
-    const char *name;			/* name */
-    const char *help;			/* help information */
-    void (*handler)(char *);
-    cc_t *charp;			/* where it is located at */
-};
-
-static struct setlist Setlist[] = {
-#ifdef	KLUDGELINEMODE
-    { "echo", 	"character to toggle local echoing on/off", NULL, &echoc },
-#endif
-    { "escape",	"character to escape back to telnet command mode", NULL, &escape },
-    { "rlogin", "rlogin escape character", 0, &rlogin },
-    { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile},
-    { " ", "", NULL, NULL },
-    { " ", "The following need 'localchars' to be toggled true", NULL, NULL },
-    { "flushoutput", "character to cause an Abort Output", NULL, termFlushCharp },
-    { "interrupt", "character to cause an Interrupt Process", NULL, termIntCharp },
-    { "quit",	"character to cause an Abort process", NULL, termQuitCharp },
-    { "eof",	"character to cause an EOF ", NULL, termEofCharp },
-    { " ", "", NULL, NULL },
-    { " ", "The following are for local editing in linemode", NULL, NULL },
-    { "erase",	"character to use to erase a character", NULL, termEraseCharp },
-    { "kill",	"character to use to erase a line", NULL, termKillCharp },
-    { "lnext",	"character to use for literal next", NULL, termLiteralNextCharp },
-    { "susp",	"character to cause a Suspend Process", NULL, termSuspCharp },
-    { "reprint", "character to use for line reprint", NULL, termRprntCharp },
-    { "worderase", "character to use to erase a word", NULL, termWerasCharp },
-    { "start",	"character to use for XON", NULL, termStartCharp },
-    { "stop",	"character to use for XOFF", NULL, termStopCharp },
-    { "forw1",	"alternate end of line character", NULL, termForw1Charp },
-    { "forw2",	"alternate end of line character", NULL, termForw2Charp },
-    { "ayt",	"alternate AYT character", NULL, termAytCharp },
-    { NULL, NULL, NULL, NULL }
-};
-
-static struct setlist *
-getset(char *name)
-{
-    return (struct setlist *)
-		genget(name, (char **) Setlist, sizeof(struct setlist));
-}
-
-void
-set_escape_char(char *s)
-{
-	if (rlogin != _POSIX_VDISABLE) {
-		rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE;
-		printf("Telnet rlogin escape character is '%s'.\n",
-					control(rlogin));
-	} else {
-		escape = (s && *s) ? special(s) : _POSIX_VDISABLE;
-		printf("Telnet escape character is '%s'.\n", control(escape));
-	}
-}
-
-static int
-setcmd(int argc, char *argv[])
-{
-    int value;
-    struct setlist *ct;
-    struct togglelist *c;
-
-    if (argc < 2 || argc > 3) {
-	printf("Format is 'set Name Value'\n'set ?' for help.\n");
-	return 0;
-    }
-    if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) {
-	for (ct = Setlist; ct->name; ct++)
-	    printf("%-15s %s\n", ct->name, ct->help);
-	printf("\n");
-	settogglehelp(1);
-	printf("%-15s %s\n", "?", "display help information");
-	return 0;
-    }
-
-    ct = getset(argv[1]);
-    if (ct == 0) {
-	c = GETTOGGLE(argv[1]);
-	if (c == 0) {
-	    fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n",
-			argv[1]);
-	    return 0;
-	} else if (Ambiguous((void *)c)) {
-	    fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
-			argv[1]);
-	    return 0;
-	}
-	if (c->variable) {
-	    if ((argc == 2) || (strcmp("on", argv[2]) == 0))
-		*c->variable = 1;
-	    else if (strcmp("off", argv[2]) == 0)
-		*c->variable = 0;
-	    else {
-		printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n");
-		return 0;
-	    }
-	    if (c->actionexplanation) {
-		printf("%s %s.\n", *c->variable? "Will" : "Won't",
-							c->actionexplanation);
-	    }
-	}
-	if (c->handler)
-	    (*c->handler)(1);
-    } else if (argc != 3) {
-	printf("Format is 'set Name Value'\n'set ?' for help.\n");
-	return 0;
-    } else if (Ambiguous((void *)ct)) {
-	fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
-			argv[1]);
-	return 0;
-    } else if (ct->handler) {
-	(*ct->handler)(argv[2]);
-	printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp);
-    } else {
-	if (strcmp("off", argv[2])) {
-	    value = special(argv[2]);
-	} else {
-	    value = _POSIX_VDISABLE;
-	}
-	*(ct->charp) = (cc_t)value;
-	printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
-    }
-    slc_check();
-    return 1;
-}
-
-static int
-unsetcmd(int argc, char *argv[])
-{
-    struct setlist *ct;
-    struct togglelist *c;
-    char *name;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'unset' command.  'unset ?' for help.\n");
-	return 0;
-    }
-    if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) {
-	for (ct = Setlist; ct->name; ct++)
-	    printf("%-15s %s\n", ct->name, ct->help);
-	printf("\n");
-	settogglehelp(0);
-	printf("%-15s %s\n", "?", "display help information");
-	return 0;
-    }
-
-    argc--;
-    argv++;
-    while (argc--) {
-	name = *argv++;
-	ct = getset(name);
-	if (ct == 0) {
-	    c = GETTOGGLE(name);
-	    if (c == 0) {
-		fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n",
-			name);
-		return 0;
-	    } else if (Ambiguous((void *)c)) {
-		fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
-			name);
-		return 0;
-	    }
-	    if (c->variable) {
-		*c->variable = 0;
-		if (c->actionexplanation) {
-		    printf("%s %s.\n", *c->variable? "Will" : "Won't",
-							c->actionexplanation);
-		}
-	    }
-	    if (c->handler)
-		(*c->handler)(0);
-	} else if (Ambiguous((void *)ct)) {
-	    fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
-			name);
-	    return 0;
-	} else if (ct->handler) {
-	    (*ct->handler)(0);
-	    printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp);
-	} else {
-	    *(ct->charp) = _POSIX_VDISABLE;
-	    printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
-	}
-    }
-    return 1;
-}
-
-/*
- * The following are the data structures and routines for the
- * 'mode' command.
- */
-#ifdef	KLUDGELINEMODE
-extern int kludgelinemode;
-
-static int
-dokludgemode(void)
-{
-    kludgelinemode = 1;
-    send_wont(TELOPT_LINEMODE, 1);
-    send_dont(TELOPT_SGA, 1);
-    send_dont(TELOPT_ECHO, 1);
-    return 1;
-}
-#endif
-
-static int
-dolinemode(void)
-{
-#ifdef	KLUDGELINEMODE
-    if (kludgelinemode)
-	send_dont(TELOPT_SGA, 1);
-#endif
-    send_will(TELOPT_LINEMODE, 1);
-    send_dont(TELOPT_ECHO, 1);
-    return 1;
-}
-
-static int
-docharmode(void)
-{
-#ifdef	KLUDGELINEMODE
-    if (kludgelinemode)
-	send_do(TELOPT_SGA, 1);
-    else
-#endif
-    send_wont(TELOPT_LINEMODE, 1);
-    send_do(TELOPT_ECHO, 1);
-    return 1;
-}
-
-static int
-dolmmode(int bit, int on)
-{
-    unsigned char c;
-    extern int linemode;
-
-    if (my_want_state_is_wont(TELOPT_LINEMODE)) {
-	printf("?Need to have LINEMODE option enabled first.\n");
-	printf("'mode ?' for help.\n");
-	return 0;
-    }
-
-    if (on)
-	c = (linemode | bit);
-    else
-	c = (linemode & ~bit);
-    lm_mode(&c, 1, 1);
-    return 1;
-}
-
-static int
-setmod(int bit)
-{
-    return dolmmode(bit, 1);
-}
-
-static int
-clearmode(int bit)
-{
-    return dolmmode(bit, 0);
-}
-
-struct modelist {
-	const char	*name;	/* command name */
-	const char	*help;	/* help string */
-	int	(*handler)(int);/* routine which executes command */
-	int	needconnect;	/* Do we need to be connected to execute? */
-	int	arg1;
-};
-
-static struct modelist ModeList[] = {
-    { "character", "Disable LINEMODE option",	(int (*)(int))docharmode, 1, 0 },
-#ifdef	KLUDGELINEMODE
-    { "",	"(or disable obsolete line-by-line mode)", NULL, 0, 0 },
-#endif
-    { "line",	"Enable LINEMODE option",	(int (*)(int))dolinemode, 1, 0 },
-#ifdef	KLUDGELINEMODE
-    { "",	"(or enable obsolete line-by-line mode)", NULL, 0, 0 },
-#endif
-    { "", "", NULL, 0, 0 },
-    { "",	"These require the LINEMODE option to be enabled", NULL, 0, 0 },
-    { "isig",	"Enable signal trapping",	setmod, 1, MODE_TRAPSIG },
-    { "+isig",	0,				setmod, 1, MODE_TRAPSIG },
-    { "-isig",	"Disable signal trapping",	clearmode, 1, MODE_TRAPSIG },
-    { "edit",	"Enable character editing",	setmod, 1, MODE_EDIT },
-    { "+edit",	0,				setmod, 1, MODE_EDIT },
-    { "-edit",	"Disable character editing",	clearmode, 1, MODE_EDIT },
-    { "softtabs", "Enable tab expansion",	setmod, 1, MODE_SOFT_TAB },
-    { "+softtabs", 0,				setmod, 1, MODE_SOFT_TAB },
-    { "-softtabs", "Disable character editing",	clearmode, 1, MODE_SOFT_TAB },
-    { "litecho", "Enable literal character echo", setmod, 1, MODE_LIT_ECHO },
-    { "+litecho", 0,				setmod, 1, MODE_LIT_ECHO },
-    { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO },
-    { "help",	0,				(int (*)(int))modehelp, 0, 0 },
-#ifdef	KLUDGELINEMODE
-    { "kludgeline", 0,				(int (*)(int))dokludgemode, 1, 0 },
-#endif
-    { "", "", NULL, 0, 0 },
-    { "?",	"Print help information",	(int (*)(int))modehelp, 0, 0 },
-    { NULL, NULL, NULL, 0, 0 },
-};
-
-
-static int
-modehelp(void)
-{
-    struct modelist *mt;
-
-    printf("format is:  'mode Mode', where 'Mode' is one of:\n\n");
-    for (mt = ModeList; mt->name; mt++) {
-	if (mt->help) {
-	    if (*mt->help)
-		printf("%-15s %s\n", mt->name, mt->help);
-	    else
-		printf("\n");
-	}
-    }
-    return 0;
-}
-
-#define	GETMODECMD(name) (struct modelist *) \
-		genget(name, (char **) ModeList, sizeof(struct modelist))
-
-static int
-modecmd(int argc, char *argv[])
-{
-    struct modelist *mt;
-
-    if (argc != 2) {
-	printf("'mode' command requires an argument\n");
-	printf("'mode ?' for help.\n");
-    } else if ((mt = GETMODECMD(argv[1])) == 0) {
-	fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]);
-    } else if (Ambiguous((void *)mt)) {
-	fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]);
-    } else if (mt->needconnect && !connected) {
-	printf("?Need to be connected first.\n");
-	printf("'mode ?' for help.\n");
-    } else if (mt->handler) {
-	return (*mt->handler)(mt->arg1);
-    }
-    return 0;
-}
-
-/*
- * The following data structures and routines implement the
- * "display" command.
- */
-
-static int
-display(int argc, char *argv[])
-{
-    struct togglelist *tl;
-    struct setlist *sl;
-
-#define	dotog(tl)	if (tl->variable && tl->actionexplanation) { \
-			    if (*tl->variable) { \
-				printf("will"); \
-			    } else { \
-				printf("won't"); \
-			    } \
-			    printf(" %s.\n", tl->actionexplanation); \
-			}
-
-#define	doset(sl)   if (sl->name && *sl->name != ' ') { \
-			if (sl->handler == 0) \
-			    printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \
-			else \
-			    printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \
-		    }
-
-    if (argc == 1) {
-	for (tl = Togglelist; tl->name; tl++) {
-	    dotog(tl);
-	}
-	printf("\n");
-	for (sl = Setlist; sl->name; sl++) {
-	    doset(sl);
-	}
-    } else {
-	int i;
-
-	for (i = 1; i < argc; i++) {
-	    sl = getset(argv[i]);
-	    tl = GETTOGGLE(argv[i]);
-	    if (Ambiguous((void *)sl) || Ambiguous((void *)tl)) {
-		printf("?Ambiguous argument '%s'.\n", argv[i]);
-		return 0;
-	    } else if (!sl && !tl) {
-		printf("?Unknown argument '%s'.\n", argv[i]);
-		return 0;
-	    } else {
-		if (tl) {
-		    dotog(tl);
-		}
-		if (sl) {
-		    doset(sl);
-		}
-	    }
-	}
-    }
-/*@*/optionstatus();
-#ifdef	ENCRYPTION
-    EncryptStatus();
-#endif	/* ENCRYPTION */
-    return 1;
-#undef	doset
-#undef	dotog
-}
-
-/*
- * The following are the data structures, and many of the routines,
- * relating to command processing.
- */
-
-/*
- * Set the escape character.
- */
-static int
-setescape(int argc, char *argv[])
-{
-	char *arg;
-	char buf[50];
-
-	printf(
-	    "Deprecated usage - please use 'set escape%s%s' in the future.\n",
-				(argc > 2)? " ":"", (argc > 2)? argv[1]: "");
-	if (argc > 2)
-		arg = argv[1];
-	else {
-		printf("new escape character: ");
-		(void) fgets(buf, sizeof(buf), stdin);
-		arg = buf;
-	}
-	if (arg[0] != '\0')
-		escape = arg[0];
-	(void) fflush(stdout);
-	return 1;
-}
-
-static int
-togcrmod(void)
-{
-    crmod = !crmod;
-    printf("Deprecated usage - please use 'toggle crmod' in the future.\n");
-    printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't");
-    (void) fflush(stdout);
-    return 1;
-}
-
-static int
-suspend(void)
-{
-#ifdef	SIGTSTP
-    setcommandmode();
-    {
-	long oldrows, oldcols, newrows, newcols, err_;
-
-	err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
-	(void) kill(0, SIGTSTP);
-	/*
-	 * If we didn't get the window size before the SUSPEND, but we
-	 * can get them now (?), then send the NAWS to make sure that
-	 * we are set up for the right window size.
-	 */
-	if (TerminalWindowSize(&newrows, &newcols) && connected &&
-	    (err_ || ((oldrows != newrows) || (oldcols != newcols)))) {
-		sendnaws();
-	}
-    }
-    /* reget parameters in case they were changed */
-    TerminalSaveState();
-    setconnmode(0);
-#else
-    printf("Suspend is not supported.  Try the '!' command instead\n");
-#endif
-    return 1;
-}
-
-static int
-shell(int argc, char *argv[] __unused)
-{
-    long oldrows, oldcols, newrows, newcols, err_;
-
-    setcommandmode();
-
-    err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
-    switch(vfork()) {
-    case -1:
-	perror("Fork failed\n");
-	break;
-
-    case 0:
-	{
-	    /*
-	     * Fire up the shell in the child.
-	     */
-	    const char *shellp, *shellname;
-
-	    shellp = getenv("SHELL");
-	    if (shellp == NULL)
-		shellp = "/bin/sh";
-	    if ((shellname = strrchr(shellp, '/')) == 0)
-		shellname = shellp;
-	    else
-		shellname++;
-	    if (argc > 1)
-		execl(shellp, shellname, "-c", &saveline[1], (char *)0);
-	    else
-		execl(shellp, shellname, (char *)0);
-	    perror("Execl");
-	    _exit(1);
-	}
-    default:
-	    (void)wait((int *)0);	/* Wait for the shell to complete */
-
-	    if (TerminalWindowSize(&newrows, &newcols) && connected &&
-		(err_ || ((oldrows != newrows) || (oldcols != newcols)))) {
-		    sendnaws();
-	    }
-	    break;
-    }
-    return 1;
-}
-
-static int
-bye(int argc, char *argv[])
-{
-    extern int resettermname;
-
-    if (connected) {
-	(void) shutdown(net, 2);
-	printf("Connection closed.\n");
-	(void) NetClose(net);
-	connected = 0;
-	resettermname = 1;
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-	auth_encrypt_connect(connected);
-#endif
-#endif
-	/* reset options */
-	tninit();
-    }
-    if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) {
-	longjmp(toplevel, 1);
-	/* NOTREACHED */
-    }
-    return 1;			/* Keep lint, etc., happy */
-}
-
-void
-quit(void)
-{
-	(void) call(bye, "bye", "fromquit", 0);
-	Exit(0);
-}
-
-static int
-logout(void)
-{
-	send_do(TELOPT_LOGOUT, 1);
-	(void) netflush();
-	return 1;
-}
-
-
-/*
- * The SLC command.
- */
-
-struct slclist {
-	const char	*name;
-	const char	*help;
-	void	(*handler)(int);
-	int	arg;
-};
-
-static void slc_help(void);
-
-struct slclist SlcList[] = {
-    { "export",	"Use local special character definitions",
-						(void (*)(int))slc_mode_export,	0 },
-    { "import",	"Use remote special character definitions",
-						slc_mode_import,	1 },
-    { "check",	"Verify remote special character definitions",
-						slc_mode_import,	0 },
-    { "help",	NULL,				(void (*)(int))slc_help,		0 },
-    { "?",	"Print help information",	(void (*)(int))slc_help,		0 },
-    { NULL, NULL, NULL, 0 },
-};
-
-static void
-slc_help(void)
-{
-    struct slclist *c;
-
-    for (c = SlcList; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-}
-
-static struct slclist *
-getslc(char *name)
-{
-    return (struct slclist *)
-		genget(name, (char **) SlcList, sizeof(struct slclist));
-}
-
-static int
-slccmd(int argc, char *argv[])
-{
-    struct slclist *c;
-
-    if (argc != 2) {
-	fprintf(stderr,
-	    "Need an argument to 'slc' command.  'slc ?' for help.\n");
-	return 0;
-    }
-    c = getslc(argv[1]);
-    if (c == 0) {
-	fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (Ambiguous((void *)c)) {
-	fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    (*c->handler)(c->arg);
-    slcstate();
-    return 1;
-}
-
-/*
- * The ENVIRON command.
- */
-
-struct envlist {
-	const char	*name;
-	const char	*help;
-	void	(*handler)(unsigned char *, unsigned char *);
-	int	narg;
-};
-
-extern struct env_lst *
-	env_define(const unsigned char *, unsigned char *);
-extern void
-	env_undefine(unsigned char *),
-	env_export(const unsigned char *),
-	env_unexport(const unsigned char *),
-	env_send(unsigned char *),
-#if defined(OLD_ENVIRON) && defined(ENV_HACK)
-	env_varval(unsigned char *),
-#endif
-	env_list(void);
-static void
-	env_help(void);
-
-struct envlist EnvList[] = {
-    { "define",	"Define an environment variable",
-						(void (*)(unsigned char *, unsigned char *))env_define,	2 },
-    { "undefine", "Undefine an environment variable",
-						(void (*)(unsigned char *, unsigned char *))env_undefine,	1 },
-    { "export",	"Mark an environment variable for automatic export",
-						(void (*)(unsigned char *, unsigned char *))env_export,	1 },
-    { "unexport", "Don't mark an environment variable for automatic export",
-						(void (*)(unsigned char *, unsigned char *))env_unexport,	1 },
-    { "send",	"Send an environment variable", (void (*)(unsigned char *, unsigned char *))env_send,	1 },
-    { "list",	"List the current environment variables",
-						(void (*)(unsigned char *, unsigned char *))env_list,	0 },
-#if defined(OLD_ENVIRON) && defined(ENV_HACK)
-    { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)",
-						(void (*)(unsigned char *, unsigned char *))env_varval,    1 },
-#endif
-    { "help",	NULL,				(void (*)(unsigned char *, unsigned char *))env_help,		0 },
-    { "?",	"Print help information",	(void (*)(unsigned char *, unsigned char *))env_help,		0 },
-    { NULL, NULL, NULL, 0 },
-};
-
-static void
-env_help(void)
-{
-    struct envlist *c;
-
-    for (c = EnvList; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-}
-
-static struct envlist *
-getenvcmd(char *name)
-{
-    return (struct envlist *)
-		genget(name, (char **) EnvList, sizeof(struct envlist));
-}
-
-static int
-env_cmd(int argc, char *argv[])
-{
-    struct envlist *c;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'environ' command.  'environ ?' for help.\n");
-	return 0;
-    }
-    c = getenvcmd(argv[1]);
-    if (c == 0) {
-	fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (Ambiguous((void *)c)) {
-	fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (c->narg + 2 != argc) {
-	fprintf(stderr,
-	    "Need %s%d argument%s to 'environ %s' command.  'environ ?' for help.\n",
-		c->narg < argc + 2 ? "only " : "",
-		c->narg, c->narg == 1 ? "" : "s", c->name);
-	return 0;
-    }
-    (*c->handler)(argv[2], argv[3]);
-    return 1;
-}
-
-struct env_lst {
-	struct env_lst *next;	/* pointer to next structure */
-	struct env_lst *prev;	/* pointer to previous structure */
-	unsigned char *var;	/* pointer to variable name */
-	unsigned char *value;	/* pointer to variable value */
-	int export;		/* 1 -> export with default list of variables */
-	int welldefined;	/* A well defined variable */
-};
-
-struct env_lst envlisthead;
-
-static struct env_lst *
-env_find(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	for (ep = envlisthead.next; ep; ep = ep->next) {
-		if (strcmp(ep->var, var) == 0)
-			return(ep);
-	}
-	return(NULL);
-}
-
-void
-env_init(void)
-{
-	extern char **environ;
-	char **epp, *cp;
-	struct env_lst *ep;
-
-	for (epp = environ; *epp; epp++) {
-		if ((cp = strchr(*epp, '='))) {
-			*cp = '\0';
-			ep = env_define((unsigned char *)*epp,
-					(unsigned char *)cp+1);
-			ep->export = 0;
-			*cp = '=';
-		}
-	}
-	/*
-	 * Special case for DISPLAY variable.  If it is ":0.0" or
-	 * "unix:0.0", we have to get rid of "unix" and insert our
-	 * hostname.
-	 */
-	if ((ep = env_find("DISPLAY"))
-	    && ((*ep->value == ':')
-		|| (strncmp((char *)ep->value, "unix:", 5) == 0))) {
-		char hbuf[256+1];
-		char *cp2 = strchr((char *)ep->value, ':');
-
-		gethostname(hbuf, 256);
-		hbuf[256] = '\0';
-		cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1);
-		sprintf((char *)cp, "%s%s", hbuf, cp2);
-		free(ep->value);
-		ep->value = (unsigned char *)cp;
-	}
-	/*
-	 * If USER is not defined, but LOGNAME is, then add
-	 * USER with the value from LOGNAME.  By default, we
-	 * don't export the USER variable.
-	 */
-	if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) {
-		env_define("USER", ep->value);
-		env_unexport("USER");
-	}
-	env_export("DISPLAY");
-	env_export("PRINTER");
-}
-
-struct env_lst *
-env_define(const unsigned char *var, unsigned char *value)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var))) {
-		if (ep->var)
-			free(ep->var);
-		if (ep->value)
-			free(ep->value);
-	} else {
-		ep = (struct env_lst *)malloc(sizeof(struct env_lst));
-		ep->next = envlisthead.next;
-		envlisthead.next = ep;
-		ep->prev = &envlisthead;
-		if (ep->next)
-			ep->next->prev = ep;
-	}
-	ep->welldefined = opt_welldefined(var);
-	ep->export = 1;
-	ep->var = strdup(var);
-	ep->value = strdup(value);
-	return(ep);
-}
-
-void
-env_undefine(unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var))) {
-		ep->prev->next = ep->next;
-		if (ep->next)
-			ep->next->prev = ep->prev;
-		if (ep->var)
-			free(ep->var);
-		if (ep->value)
-			free(ep->value);
-		free(ep);
-	}
-}
-
-void
-env_export(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var)))
-		ep->export = 1;
-}
-
-void
-env_unexport(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var)))
-		ep->export = 0;
-}
-
-void
-env_send(unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if (my_state_is_wont(TELOPT_NEW_ENVIRON)
-#ifdef	OLD_ENVIRON
-	    && my_state_is_wont(TELOPT_OLD_ENVIRON)
-#endif
-		) {
-		fprintf(stderr,
-		    "Cannot send '%s': Telnet ENVIRON option not enabled\n",
-									var);
-		return;
-	}
-	ep = env_find(var);
-	if (ep == 0) {
-		fprintf(stderr, "Cannot send '%s': variable not defined\n",
-									var);
-		return;
-	}
-	env_opt_start_info();
-	env_opt_add(ep->var);
-	env_opt_end(0);
-}
-
-void
-env_list(void)
-{
-	struct env_lst *ep;
-
-	for (ep = envlisthead.next; ep; ep = ep->next) {
-		printf("%c %-20s %s\n", ep->export ? '*' : ' ',
-					ep->var, ep->value);
-	}
-}
-
-unsigned char *
-env_default(int init, int welldefined)
-{
-	static struct env_lst *nep = NULL;
-
-	if (init) {
-		nep = &envlisthead;
-		return(NULL);
-	}
-	if (nep) {
-		while ((nep = nep->next)) {
-			if (nep->export && (nep->welldefined == welldefined))
-				return(nep->var);
-		}
-	}
-	return(NULL);
-}
-
-unsigned char *
-env_getvalue(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var)))
-		return(ep->value);
-	return(NULL);
-}
-
-#if defined(OLD_ENVIRON) && defined(ENV_HACK)
-void
-env_varval(unsigned char *what)
-{
-	extern int old_env_var, old_env_value, env_auto;
-	int len = strlen((char *)what);
-
-	if (len == 0)
-		goto unknown;
-
-	if (strncasecmp((char *)what, "status", len) == 0) {
-		if (env_auto)
-			printf("%s%s", "VAR and VALUE are/will be ",
-					"determined automatically\n");
-		if (old_env_var == OLD_ENV_VAR)
-			printf("VAR and VALUE set to correct definitions\n");
-		else
-			printf("VAR and VALUE definitions are reversed\n");
-	} else if (strncasecmp((char *)what, "auto", len) == 0) {
-		env_auto = 1;
-		old_env_var = OLD_ENV_VALUE;
-		old_env_value = OLD_ENV_VAR;
-	} else if (strncasecmp((char *)what, "right", len) == 0) {
-		env_auto = 0;
-		old_env_var = OLD_ENV_VAR;
-		old_env_value = OLD_ENV_VALUE;
-	} else if (strncasecmp((char *)what, "wrong", len) == 0) {
-		env_auto = 0;
-		old_env_var = OLD_ENV_VALUE;
-		old_env_value = OLD_ENV_VAR;
-	} else {
-unknown:
-		printf("Unknown \"varval\" command. (\"auto\", \"right\", \"wrong\", \"status\")\n");
-	}
-}
-#endif
-
-#ifdef	AUTHENTICATION
-/*
- * The AUTHENTICATE command.
- */
-
-struct authlist {
-	const char	*name;
-	const char	*help;
-	int	(*handler)(char *);
-	int	narg;
-};
-
-extern int
-	auth_enable(char *),
-	auth_disable(char *),
-	auth_status(void);
-static int
-	auth_help(void);
-
-struct authlist AuthList[] = {
-    { "status",	"Display current status of authentication information",
-						(int (*)(char *))auth_status,	0 },
-    { "disable", "Disable an authentication type ('auth disable ?' for more)",
-						auth_disable,	1 },
-    { "enable", "Enable an authentication type ('auth enable ?' for more)",
-						auth_enable,	1 },
-    { "help",	NULL,				(int (*)(char *))auth_help,		0 },
-    { "?",	"Print help information",	(int (*)(char *))auth_help,		0 },
-    { NULL, NULL, NULL, 0 },
-};
-
-static int
-auth_help(void)
-{
-    struct authlist *c;
-
-    for (c = AuthList; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-    return 0;
-}
-
-int
-auth_cmd(int argc, char *argv[])
-{
-    struct authlist *c;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'auth' command.  'auth ?' for help.\n");
-	return 0;
-    }
-
-    c = (struct authlist *)
-		genget(argv[1], (char **) AuthList, sizeof(struct authlist));
-    if (c == 0) {
-	fprintf(stderr, "'%s': unknown argument ('auth ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (Ambiguous((void *)c)) {
-	fprintf(stderr, "'%s': ambiguous argument ('auth ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (c->narg + 2 != argc) {
-	fprintf(stderr,
-	    "Need %s%d argument%s to 'auth %s' command.  'auth ?' for help.\n",
-		c->narg < argc + 2 ? "only " : "",
-		c->narg, c->narg == 1 ? "" : "s", c->name);
-	return 0;
-    }
-    return((*c->handler)(argv[2]));
-}
-#endif
-
-#ifdef	ENCRYPTION
-/*
- * The ENCRYPT command.
- */
-
-struct encryptlist {
-	const char	*name;
-	const char	*help;
-	int	(*handler)(char *, char *);
-	int	needconnect;
-	int	minarg;
-	int	maxarg;
-};
-
-extern int
-	EncryptEnable(char *, char *),
-	EncryptDisable(char *, char *),
-	EncryptType(char *, char *),
-	EncryptStart(char *),
-	EncryptStartInput(void),
-	EncryptStartOutput(void),
-	EncryptStop(char *),
-	EncryptStopInput(void),
-	EncryptStopOutput(void),
-	EncryptStatus(void);
-static int
-	EncryptHelp(void);
-
-struct encryptlist EncryptList[] = {
-    { "enable", "Enable encryption. ('encrypt enable ?' for more)",
-						EncryptEnable, 1, 1, 2 },
-    { "disable", "Disable encryption. ('encrypt enable ?' for more)",
-						EncryptDisable, 0, 1, 2 },
-    { "type", "Set encryption type. ('encrypt type ?' for more)",
-						EncryptType, 0, 1, 1 },
-    { "start", "Start encryption. ('encrypt start ?' for more)",
-						(int (*)(char *, char *))EncryptStart, 1, 0, 1 },
-    { "stop", "Stop encryption. ('encrypt stop ?' for more)",
-						(int (*)(char *, char *))EncryptStop, 1, 0, 1 },
-    { "input", "Start encrypting the input stream",
-						(int (*)(char *, char *))EncryptStartInput, 1, 0, 0 },
-    { "-input", "Stop encrypting the input stream",
-						(int (*)(char *, char *))EncryptStopInput, 1, 0, 0 },
-    { "output", "Start encrypting the output stream",
-						(int (*)(char *, char *))EncryptStartOutput, 1, 0, 0 },
-    { "-output", "Stop encrypting the output stream",
-						(int (*)(char *, char *))EncryptStopOutput, 1, 0, 0 },
-
-    { "status",	"Display current status of authentication information",
-						(int (*)(char *, char *))EncryptStatus,	0, 0, 0 },
-    { "help",	NULL,				(int (*)(char *, char *))EncryptHelp,	0, 0, 0 },
-    { "?",	"Print help information",	(int (*)(char *, char *))EncryptHelp,	0, 0, 0 },
-    { NULL, NULL, NULL, 0, 0, 0 },
-};
-
-static int
-EncryptHelp(void)
-{
-    struct encryptlist *c;
-
-    for (c = EncryptList; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-    return 0;
-}
-
-static int
-encrypt_cmd(int argc, char *argv[])
-{
-    struct encryptlist *c;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'encrypt' command.  'encrypt ?' for help.\n");
-	return 0;
-    }
-
-    c = (struct encryptlist *)
-		genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist));
-    if (c == 0) {
-	fprintf(stderr, "'%s': unknown argument ('encrypt ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (Ambiguous((void *)c)) {
-	fprintf(stderr, "'%s': ambiguous argument ('encrypt ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    argc -= 2;
-    if (argc < c->minarg || argc > c->maxarg) {
-	if (c->minarg == c->maxarg) {
-	    fprintf(stderr, "Need %s%d argument%s ",
-		c->minarg < argc ? "only " : "", c->minarg,
-		c->minarg == 1 ? "" : "s");
-	} else {
-	    fprintf(stderr, "Need %s%d-%d arguments ",
-		c->maxarg < argc ? "only " : "", c->minarg, c->maxarg);
-	}
-	fprintf(stderr, "to 'encrypt %s' command.  'encrypt ?' for help.\n",
-		c->name);
-	return 0;
-    }
-    if (c->needconnect && !connected) {
-	if (!(argc && (isprefix(argv[2], "help") || isprefix(argv[2], "?")))) {
-	    printf("?Need to be connected first.\n");
-	    return 0;
-	}
-    }
-    return ((*c->handler)(argc > 0 ? argv[2] : 0,
-			argc > 1 ? argv[3] : 0));
-}
-#endif	/* ENCRYPTION */
-
-/*
- * Print status about the connection.
- */
-/*ARGSUSED*/
-static int
-status(int argc, char *argv[])
-{
-    if (connected) {
-	printf("Connected to %s.\n", hostname);
-	if ((argc < 2) || strcmp(argv[1], "notmuch")) {
-	    int mode = getconnmode();
-
-	    if (my_want_state_is_will(TELOPT_LINEMODE)) {
-		printf("Operating with LINEMODE option\n");
-		printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No");
-		printf("%s catching of signals\n",
-					(mode&MODE_TRAPSIG) ? "Local" : "No");
-		slcstate();
-#ifdef	KLUDGELINEMODE
-	    } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) {
-		printf("Operating in obsolete linemode\n");
-#endif
-	    } else {
-		printf("Operating in single character mode\n");
-		if (localchars)
-		    printf("Catching signals locally\n");
-	    }
-	    printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote");
-	    if (my_want_state_is_will(TELOPT_LFLOW))
-		printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No");
-#ifdef	ENCRYPTION
-	    encrypt_display();
-#endif	/* ENCRYPTION */
-	}
-    } else {
-	printf("No connection.\n");
-    }
-    printf("Escape character is '%s'.\n", control(escape));
-    (void) fflush(stdout);
-    return 1;
-}
-
-#ifdef	SIGINFO
-/*
- * Function that gets called when SIGINFO is received.
- */
-void
-ayt_status(void)
-{
-    (void) call(status, "status", "notmuch", 0);
-}
-#endif
-
-static const char *
-sockaddr_ntop(struct sockaddr *sa)
-{
-    void *addr;
-    static char addrbuf[INET6_ADDRSTRLEN];
-
-    switch (sa->sa_family) {
-    case AF_INET:
-	addr = &((struct sockaddr_in *)sa)->sin_addr;
-	break;
-    case AF_UNIX:
-	addr = &((struct sockaddr_un *)sa)->sun_path;
-	break;
-#ifdef INET6
-    case AF_INET6:
-	addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
-	break;
-#endif
-    default:
-	return NULL;
-    }
-    inet_ntop(sa->sa_family, addr, addrbuf, sizeof(addrbuf));
-    return addrbuf;
-}
-
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-static int
-setpolicy(int lnet, struct addrinfo *res, char *policy)
-{
-	char *buf;
-	int level;
-	int optname;
-
-	if (policy == NULL)
-		return 0;
-
-	buf = ipsec_set_policy(policy, strlen(policy));
-	if (buf == NULL) {
-		printf("%s\n", ipsec_strerror());
-		return -1;
-	}
-	level = res->ai_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
-	optname = res->ai_family == AF_INET ? IP_IPSEC_POLICY : IPV6_IPSEC_POLICY;
-	if (setsockopt(lnet, level, optname, buf, ipsec_get_policylen(buf)) < 0){
-		perror("setsockopt");
-		return -1;
-	}
-
-	free(buf);
-	return 0;
-}
-#endif
-
-#ifdef INET6
-/*
- * When an Address Family related error happend, check if retry with
- * another AF is possible or not.
- * Return 1, if retry with another af is OK. Else, return 0.
- */
-static int
-switch_af(struct addrinfo **aip)
-{
-    int nextaf;
-    struct addrinfo *ai;
-
-    ai = *aip;
-    nextaf = (ai->ai_family == AF_INET) ? AF_INET6 : AF_INET;
-    do
-        ai=ai->ai_next;
-    while (ai != NULL && ai->ai_family != nextaf);
-    *aip = ai;
-    if (*aip != NULL) {
-        return 1;
-    }
-    return 0;
-}
-#endif
-
-int
-tn(int argc, char *argv[])
-{
-    char *srp = 0;
-    int proto, opt;
-    int srlen;
-    int srcroute = 0, result;
-    char *cmd, *hostp = 0, *portp = 0, *user = 0;
-    char *src_addr = NULL;
-    struct addrinfo hints, *res, *res0 = NULL, *src_res, *src_res0 = NULL;
-    int error = 0, af_error = 0;
-
-    if (connected) {
-	printf("?Already connected to %s\n", hostname);
-	setuid(getuid());
-	return 0;
-    }
-    if (argc < 2) {
-	(void) strcpy(line, "open ");
-	printf("(to) ");
-	(void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin);
-	makeargv();
-	argc = margc;
-	argv = margv;
-    }
-    cmd = *argv;
-    --argc; ++argv;
-    while (argc) {
-	if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?"))
-	    goto usage;
-	if (strcmp(*argv, "-l") == 0) {
-	    --argc; ++argv;
-	    if (argc == 0)
-		goto usage;
-	    user = *argv++;
-	    --argc;
-	    continue;
-	}
-	if (strcmp(*argv, "-a") == 0) {
-	    --argc; ++argv;
-	    autologin = 1;
-	    continue;
-	}
-	if (strcmp(*argv, "-s") == 0) {
-	    --argc; ++argv;
-	    if (argc == 0)
-		goto usage;
-	    src_addr = *argv++;
-	    --argc;
-	    continue;
-	}
-	if (hostp == 0) {
-	    hostp = *argv++;
-	    --argc;
-	    continue;
-	}
-	if (portp == 0) {
-	    portp = *argv++;
-	    --argc;
-	    continue;
-	}
-    usage:
-	printf("usage: %s [-l user] [-a] [-s src_addr] host-name [port]\n", cmd);
-	setuid(getuid());
-	return 0;
-    }
-    if (hostp == 0)
-	goto usage;
-
-    if (src_addr != NULL) {
-	memset(&hints, 0, sizeof(hints));
-	hints.ai_family = family;
-	hints.ai_socktype = SOCK_STREAM;
-	error = getaddrinfo(src_addr, 0, &hints, &src_res);
-	if (error == EAI_NODATA) {
-		hints.ai_flags = 0;
-		error = getaddrinfo(src_addr, 0, &hints, &src_res);
-	}
-	if (error != 0) {
-		fprintf(stderr, "%s: %s\n", src_addr, gai_strerror(error));
-		if (error == EAI_SYSTEM)
-			fprintf(stderr, "%s: %s\n", src_addr, strerror(errno));
-		setuid(getuid());
-		return 0;
-	}
-	src_res0 = src_res;
-    }
-    if (hostp[0] == '/') {
-	struct sockaddr_un su;
-	
-	if (strlen(hostp) >= sizeof(su.sun_path)) {
-	    fprintf(stderr, "hostname too long for unix domain socket: %s",
-		    hostp);
-		goto fail;
-	}
-	memset(&su, 0, sizeof su);
-	su.sun_family = AF_UNIX;
-	strncpy(su.sun_path, hostp, sizeof su.sun_path);
-	printf("Trying %s...\n", hostp);
-	net = socket(PF_UNIX, SOCK_STREAM, 0);
-	if ( net < 0) {
-	    perror("socket");
-	    goto fail;
-	}
-	if (connect(net, (struct sockaddr *)&su, sizeof su) == -1) {
-	    perror(su.sun_path);
-	    (void) NetClose(net);
-	    goto fail;
-	}
-	goto af_unix;
-    } else if (hostp[0] == '@' || hostp[0] == '!') {
-	if (
-#ifdef INET6
-	    family == AF_INET6 ||
-#endif
-	    (hostname = strrchr(hostp, ':')) == NULL)
-	    hostname = strrchr(hostp, '@');
-	if (hostname == NULL) {
-	    hostname = hostp;
-	} else {
-	    hostname++;
-	    srcroute = 1;
-	}
-    } else
-        hostname = hostp;
-    if (!portp) {
-      telnetport = 1;
-      portp = strdup("telnet");
-    } else if (*portp == '-') {
-      portp++;
-      telnetport = 1;
-    } else
-      telnetport = 0;
-
-    memset(&hints, 0, sizeof(hints));
-    hints.ai_flags = AI_NUMERICHOST;
-    hints.ai_family = family;
-    hints.ai_socktype = SOCK_STREAM;
-    error = getaddrinfo(hostname, portp, &hints, &res);
-    if (error) {
-        hints.ai_flags = AI_CANONNAME;
-	error = getaddrinfo(hostname, portp, &hints, &res);
-    }
-    if (error != 0) {
-	fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error));
-	if (error == EAI_SYSTEM)
-	    fprintf(stderr, "%s: %s\n", hostname, strerror(errno));
-	setuid(getuid());
-	goto fail;
-    }
-    if (hints.ai_flags == AI_NUMERICHOST) {
-	/* hostname has numeric */
-        int gni_err = 1;
-
-	if (doaddrlookup)
-	    gni_err = getnameinfo(res->ai_addr, res->ai_addr->sa_len,
-				  _hostname, sizeof(_hostname) - 1, NULL, 0,
-				  NI_NAMEREQD);
-	if (gni_err != 0)
-	    (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
-	_hostname[sizeof(_hostname)-1] = '\0';
-	hostname = _hostname;
-    } else {
-	/* hostname has FQDN */
-	if (srcroute != 0)
-	    (void) strncpy(_hostname, hostname, sizeof(_hostname) - 1);
-	else if (res->ai_canonname != NULL)
-	  strcpy(_hostname, res->ai_canonname);
-	else
-	  (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
-	_hostname[sizeof(_hostname)-1] = '\0';
-	hostname = _hostname;
-    }
-    res0 = res;
- #ifdef INET6
- af_again:
- #endif
-    if (srcroute != 0) {
-        static char hostbuf[BUFSIZ];
-
-	if (af_error == 0) { /* save intermediate hostnames for retry */
-		strncpy(hostbuf, hostp, BUFSIZ - 1);
-		hostbuf[BUFSIZ - 1] = '\0';
-	} else
-		hostp = hostbuf;
-	srp = 0;
-	result = sourceroute(res, hostp, &srp, &srlen, &proto, &opt);
-	if (result == 0) {
-#ifdef INET6
-	    if (family == AF_UNSPEC && af_error == 0 &&
-		switch_af(&res) == 1) {
-	        af_error = 1;
-		goto af_again;
-	    }
-#endif
-	    setuid(getuid());
-	    goto fail;
-	} else if (result == -1) {
-	    printf("Bad source route option: %s\n", hostp);
-	    setuid(getuid());
-	    goto fail;
-	}
-    }
-    do {
-        printf("Trying %s...\n", sockaddr_ntop(res->ai_addr));
-	net = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
-	setuid(getuid());
-	if (net < 0) {
-#ifdef INET6
-	    if (family == AF_UNSPEC && af_error == 0 &&
-		switch_af(&res) == 1) {
-	        af_error = 1;
-		goto af_again;
-	    }
-#endif
-	    perror("telnet: socket");
-	    goto fail;
-	}
-	if (srp && setsockopt(net, proto, opt, (char *)srp, srlen) < 0)
-		perror("setsockopt (source route)");
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-	if (res->ai_family == PF_INET) {
-# if	defined(HAS_GETTOS)
-	    struct tosent *tp;
-	    if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
-		tos = tp->t_tos;
-# endif
-	    if (tos < 0)
-		tos = IPTOS_LOWDELAY;
-	    if (tos
-		&& (setsockopt(net, IPPROTO_IP, IP_TOS,
-		    (char *)&tos, sizeof(int)) < 0)
-		&& (errno != ENOPROTOOPT))
-		    perror("telnet: setsockopt (IP_TOS) (ignored)");
-	}
-#endif	/* defined(IPPROTO_IP) && defined(IP_TOS) */
-
-	if (telnet_debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) {
-		perror("setsockopt (SO_DEBUG)");
-	}
-
-	if (src_addr != NULL) {
-	    for (src_res = src_res0; src_res != 0; src_res = src_res->ai_next)
-	        if (src_res->ai_family == res->ai_family)
-		    break;
-	    if (src_res == NULL)
-		src_res = src_res0;
-	    if (bind(net, src_res->ai_addr, src_res->ai_addrlen) == -1) {
-#ifdef INET6
-	        if (family == AF_UNSPEC && af_error == 0 &&
-		    switch_af(&res) == 1) {
-		    af_error = 1;
-		    (void) NetClose(net);
-		    goto af_again;
-		}
-#endif
-		perror("bind");
-		(void) NetClose(net);
-		goto fail;
-	    }
-	}
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-	if (setpolicy(net, res, ipsec_policy_in) < 0) {
-		(void) NetClose(net);
-		goto fail;
-	}
-	if (setpolicy(net, res, ipsec_policy_out) < 0) {
-		(void) NetClose(net);
-		goto fail;
-	}
-#endif
-
-	if (connect(net, res->ai_addr, res->ai_addrlen) < 0) {
-	    struct addrinfo *next;
-
-	    next = res->ai_next;
-	    /* If already an af failed, only try same af. */
-	    if (af_error != 0)
-		while (next != NULL && next->ai_family != res->ai_family)
-		    next = next->ai_next;
-	    warn("connect to address %s", sockaddr_ntop(res->ai_addr));
-	    if (next != NULL) {
-		res = next;
-		(void) NetClose(net);
-		continue;
-	    }
-	    warnx("Unable to connect to remote host");
-	    (void) NetClose(net);
-	    goto fail;
-	}
-	connected++;
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-	auth_encrypt_connect(connected);
-#endif
-#endif
-    } while (connected == 0);
-    freeaddrinfo(res0);
-    if (src_res0 != NULL)
-        freeaddrinfo(src_res0);
-    cmdrc(hostp, hostname);
- af_unix:    
-    if (autologin && user == NULL) {
-	struct passwd *pw;
-
-	user = getenv("USER");
-	if (user == NULL ||
-	    ((pw = getpwnam(user)) && pw->pw_uid != getuid())) {
-		if ((pw = getpwuid(getuid())))
-			user = pw->pw_name;
-		else
-			user = NULL;
-	}
-    }
-    if (user) {
-	env_define("USER", user);
-	env_export("USER");
-    }
-    (void) call(status, "status", "notmuch", 0);
-    if (setjmp(peerdied) == 0)
-	telnet(user);
-    (void) NetClose(net);
-    ExitString("Connection closed by foreign host.\n",1);
-    /*NOTREACHED*/
- fail:
-    if (res0 != NULL)
-        freeaddrinfo(res0);
-    if (src_res0 != NULL)
-        freeaddrinfo(src_res0);
-    return 0;
-}
-
-#define HELPINDENT (sizeof ("connect"))
-
-static char
-	openhelp[] =	"connect to a site",
-	closehelp[] =	"close current connection",
-	logouthelp[] =	"forcibly logout remote user and close the connection",
-	quithelp[] =	"exit telnet",
-	statushelp[] =	"print status information",
-	helphelp[] =	"print help information",
-	sendhelp[] =	"transmit special characters ('send ?' for more)",
-	sethelp[] = 	"set operating parameters ('set ?' for more)",
-	unsethelp[] = 	"unset operating parameters ('unset ?' for more)",
-	togglestring[] ="toggle operating parameters ('toggle ?' for more)",
-	slchelp[] =	"change state of special charaters ('slc ?' for more)",
-	displayhelp[] =	"display operating parameters",
-#ifdef	AUTHENTICATION
-	authhelp[] =	"turn on (off) authentication ('auth ?' for more)",
-#endif
-#ifdef	ENCRYPTION
-	encrypthelp[] =	"turn on (off) encryption ('encrypt ?' for more)",
-#endif	/* ENCRYPTION */
-	zhelp[] =	"suspend telnet",
-#ifdef OPIE
-	opiehelp[] =    "compute response to OPIE challenge",
-#endif
-	shellhelp[] =	"invoke a subshell",
-	envhelp[] =	"change environment variables ('environ ?' for more)",
-	modestring[] = "try to enter line or character mode ('mode ?' for more)";
-
-static Command cmdtab[] = {
-	{ "close",	closehelp,	bye,		1 },
-	{ "logout",	logouthelp,	(int (*)(int, char **))logout,		1 },
-	{ "display",	displayhelp,	display,	0 },
-	{ "mode",	modestring,	modecmd,	0 },
-	{ "telnet",	openhelp,	tn,		0 },
-	{ "open",	openhelp,	tn,		0 },
-	{ "quit",	quithelp,	(int (*)(int, char **))quit,		0 },
-	{ "send",	sendhelp,	sendcmd,	0 },
-	{ "set",	sethelp,	setcmd,		0 },
-	{ "unset",	unsethelp,	unsetcmd,	0 },
-	{ "status",	statushelp,	status,		0 },
-	{ "toggle",	togglestring,	toggle,		0 },
-	{ "slc",	slchelp,	slccmd,		0 },
-#ifdef	AUTHENTICATION
-	{ "auth",	authhelp,	auth_cmd,	0 },
-#endif
-#ifdef	ENCRYPTION
-	{ "encrypt",	encrypthelp,	encrypt_cmd,	0 },
-#endif	/* ENCRYPTION */
-	{ "z",		zhelp,		(int (*)(int, char **))suspend,	0 },
-	{ "!",		shellhelp,	shell,		1 },
-	{ "environ",	envhelp,	env_cmd,	0 },
-	{ "?",		helphelp,	help,		0 },
-#ifdef OPIE
-	{ "opie",       opiehelp,       opie_calc,      0 },
-#endif		
-	{ NULL, NULL, NULL, 0 }
-};
-
-static char	crmodhelp[] =	"deprecated command -- use 'toggle crmod' instead";
-static char	escapehelp[] =	"deprecated command -- use 'set escape' instead";
-
-static Command cmdtab2[] = {
-	{ "help",	0,		help,		0 },
-	{ "escape",	escapehelp,	setescape,	0 },
-	{ "crmod",	crmodhelp,	(int (*)(int, char **))togcrmod,	0 },
-	{ NULL, NULL, NULL, 0 }
-};
-
-
-/*
- * Call routine with argc, argv set from args (terminated by 0).
- */
-
-static int
-call(intrtn_t routine, ...)
-{
-    va_list ap;
-    char *args[100];
-    int argno = 0;
-
-    va_start(ap, routine);
-    while ((args[argno++] = va_arg(ap, char *)) != 0);
-    va_end(ap);
-    return (*routine)(argno-1, args);
-}
-
-
-static Command *
-getcmd(char *name)
-{
-    Command *cm;
-
-    if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command))))
-	return cm;
-    return (Command *) genget(name, (char **) cmdtab2, sizeof(Command));
-}
-
-void
-command(int top, const char *tbuf, int cnt)
-{
-    Command *c;
-
-    setcommandmode();
-    if (!top) {
-	putchar('\n');
-    } else {
-	(void) signal(SIGINT, SIG_DFL);
-	(void) signal(SIGQUIT, SIG_DFL);
-    }
-    for (;;) {
-	if (rlogin == _POSIX_VDISABLE)
-		printf("%s> ", prompt);
-	if (tbuf) {
-	    char *cp;
-	    cp = line;
-	    while (cnt > 0 && (*cp++ = *tbuf++) != '\n')
-		cnt--;
-	    tbuf = 0;
-	    if (cp == line || *--cp != '\n' || cp == line)
-		goto getline;
-	    *cp = '\0';
-	    if (rlogin == _POSIX_VDISABLE)
-		printf("%s\n", line);
-	} else {
-	getline:
-	    if (rlogin != _POSIX_VDISABLE)
-		printf("%s> ", prompt);
-	    if (fgets(line, sizeof(line), stdin) == NULL) {
-		if (feof(stdin) || ferror(stdin)) {
-		    (void) quit();
-		    /*NOTREACHED*/
-		}
-		break;
-	    }
-	}
-	if (line[0] == 0)
-	    break;
-	makeargv();
-	if (margv[0] == 0) {
-	    break;
-	}
-	c = getcmd(margv[0]);
-	if (Ambiguous((void *)c)) {
-	    printf("?Ambiguous command\n");
-	    continue;
-	}
-	if (c == 0) {
-	    printf("?Invalid command\n");
-	    continue;
-	}
-	if (c->needconnect && !connected) {
-	    printf("?Need to be connected first.\n");
-	    continue;
-	}
-	if ((*c->handler)(margc, margv)) {
-	    break;
-	}
-    }
-    if (!top) {
-	if (!connected) {
-	    longjmp(toplevel, 1);
-	    /*NOTREACHED*/
-	}
-	setconnmode(0);
-    }
-}
-
-/*
- * Help command.
- */
-static int
-help(int argc, char *argv[])
-{
-	Command *c;
-
-	if (argc == 1) {
-		printf("Commands may be abbreviated.  Commands are:\n\n");
-		for (c = cmdtab; c->name; c++)
-			if (c->help) {
-				printf("%-*s\t%s\n", (int)HELPINDENT, c->name,
-								    c->help);
-			}
-		return 0;
-	}
-	else while (--argc > 0) {
-		char *arg;
-		arg = *++argv;
-		c = getcmd(arg);
-		if (Ambiguous((void *)c))
-			printf("?Ambiguous help command %s\n", arg);
-		else if (c == (Command *)0)
-			printf("?Invalid help command %s\n", arg);
-		else
-			printf("%s\n", c->help);
-	}
-	return 0;
-}
-
-static char *rcname = 0;
-static char rcbuf[128];
-
-void
-cmdrc(char *m1, char *m2)
-{
-    Command *c;
-    FILE *rcfile;
-    int gotmachine = 0;
-    int l1 = strlen(m1);
-    int l2 = strlen(m2);
-    char m1save[MAXHOSTNAMELEN];
-
-    if (skiprc)
-	return;
-
-    strlcpy(m1save, m1, sizeof(m1save));
-    m1 = m1save;
-
-    if (rcname == 0) {
-	rcname = getenv("HOME");
-	if (rcname && (strlen(rcname) + 10) < sizeof(rcbuf))
-	    strcpy(rcbuf, rcname);
-	else
-	    rcbuf[0] = '\0';
-	strcat(rcbuf, "/.telnetrc");
-	rcname = rcbuf;
-    }
-
-    if ((rcfile = fopen(rcname, "r")) == 0) {
-	return;
-    }
-
-    for (;;) {
-	if (fgets(line, sizeof(line), rcfile) == NULL)
-	    break;
-	if (line[0] == 0)
-	    break;
-	if (line[0] == '#')
-	    continue;
-	if (gotmachine) {
-	    if (!isspace(line[0]))
-		gotmachine = 0;
-	}
-	if (gotmachine == 0) {
-	    if (isspace(line[0]))
-		continue;
-	    if (strncasecmp(line, m1, l1) == 0)
-		strncpy(line, &line[l1], sizeof(line) - l1);
-	    else if (strncasecmp(line, m2, l2) == 0)
-		strncpy(line, &line[l2], sizeof(line) - l2);
-	    else if (strncasecmp(line, "DEFAULT", 7) == 0)
-		strncpy(line, &line[7], sizeof(line) - 7);
-	    else
-		continue;
-	    if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
-		continue;
-	    gotmachine = 1;
-	}
-	makeargv();
-	if (margv[0] == 0)
-	    continue;
-	c = getcmd(margv[0]);
-	if (Ambiguous((void *)c)) {
-	    printf("?Ambiguous command: %s\n", margv[0]);
-	    continue;
-	}
-	if (c == 0) {
-	    printf("?Invalid command: %s\n", margv[0]);
-	    continue;
-	}
-	/*
-	 * This should never happen...
-	 */
-	if (c->needconnect && !connected) {
-	    printf("?Need to be connected first for %s.\n", margv[0]);
-	    continue;
-	}
-	(*c->handler)(margc, margv);
-    }
-    fclose(rcfile);
-}
-
-/*
- * Source route is handed in as
- *	[!]@hop1@hop2...[@|:]dst
- * If the leading ! is present, it is a
- * strict source route, otherwise it is
- * assmed to be a loose source route.
- *
- * We fill in the source route option as
- *	hop1,hop2,hop3...dest
- * and return a pointer to hop1, which will
- * be the address to connect() to.
- *
- * Arguments:
- *
- *	res:	ponter to addrinfo structure which contains sockaddr to
- *		the host to connect to.
- *
- *	arg:	pointer to route list to decipher
- *
- *	cpp: 	If *cpp is not equal to NULL, this is a
- *		pointer to a pointer to a character array
- *		that should be filled in with the option.
- *
- *	lenp:	pointer to an integer that contains the
- *		length of *cpp if *cpp != NULL.
- *
- *	protop:	pointer to an integer that should be filled in with
- *		appropriate protocol for setsockopt, as socket 
- *		protocol family.
- *
- *	optp:	pointer to an integer that should be filled in with
- *		appropriate option for setsockopt, as socket protocol
- *		family.
- *
- * Return values:
- *
- *	If the return value is 1, then all operations are
- *	successful. If the
- *	return value is -1, there was a syntax error in the
- *	option, either unknown characters, or too many hosts.
- *	If the return value is 0, one of the hostnames in the
- *	path is unknown, and *cpp is set to point to the bad
- *	hostname.
- *
- *	*cpp:	If *cpp was equal to NULL, it will be filled
- *		in with a pointer to our static area that has
- *		the option filled in.  This will be 32bit aligned.
- *
- *	*lenp:	This will be filled in with how long the option
- *		pointed to by *cpp is.
- *
- *	*protop: This will be filled in with appropriate protocol for
- *		 setsockopt, as socket protocol family.
- *
- *	*optp:	This will be filled in with appropriate option for
- *		setsockopt, as socket protocol family.
- */
-static int
-sourceroute(struct addrinfo *ai, char *arg, char **cpp, int *lenp, int *protop, int *optp)
-{
-	static char buf[1024 + ALIGNBYTES];	/*XXX*/
-	char *cp, *cp2, *lsrp, *ep;
-	struct sockaddr_in *_sin;
-#ifdef INET6
-	struct sockaddr_in6 *sin6;
-	struct cmsghdr *cmsg;
-#endif
-	struct addrinfo hints, *res;
-	int error;
-	char c;
-
-	/*
-	 * Verify the arguments, and make sure we have
-	 * at least 7 bytes for the option.
-	 */
-	if (cpp == NULL || lenp == NULL)
-		return -1;
-	if (*cpp != NULL) {
-		switch (res->ai_family) {
-		case AF_INET:
-			if (*lenp < 7)
-				return -1;
-			break;
-#ifdef INET6
-		case AF_INET6:
-			if (*lenp < (int)CMSG_SPACE(sizeof(struct ip6_rthdr) +
-				               sizeof(struct in6_addr)))
-				return -1;
-			break;
-#endif
-		}
-	}
-	/*
-	 * Decide whether we have a buffer passed to us,
-	 * or if we need to use our own static buffer.
-	 */
-	if (*cpp) {
-		lsrp = *cpp;
-		ep = lsrp + *lenp;
-	} else {
-		*cpp = lsrp = (char *)ALIGN(buf);
-		ep = lsrp + 1024;
-	}
-
-	cp = arg;
-
-#ifdef INET6
-	if (ai->ai_family == AF_INET6) {
-		cmsg = inet6_rthdr_init(*cpp, IPV6_RTHDR_TYPE_0);
-		if (*cp != '@')
-			return -1;
-		*protop = IPPROTO_IPV6;
-		*optp = IPV6_PKTOPTIONS;
-	} else
-#endif
-      {
-	/*
-	 * Next, decide whether we have a loose source
-	 * route or a strict source route, and fill in
-	 * the begining of the option.
-	 */
-	if (*cp == '!') {
-		cp++;
-		*lsrp++ = IPOPT_SSRR;
-	} else
-		*lsrp++ = IPOPT_LSRR;
-
-	if (*cp != '@')
-		return -1;
-
-	lsrp++;		/* skip over length, we'll fill it in later */
-	*lsrp++ = 4;
-	*protop = IPPROTO_IP;
-	*optp = IP_OPTIONS;
-      }
-
-	cp++;
-	memset(&hints, 0, sizeof(hints));
-	hints.ai_family = ai->ai_family;
-	hints.ai_socktype = SOCK_STREAM;
-	for (c = 0;;) {
-		if (
-#ifdef INET6
-		    ai->ai_family != AF_INET6 &&
-#endif
-		    c == ':')
-			cp2 = 0;
-		else for (cp2 = cp; (c = *cp2); cp2++) {
-			if (c == ',') {
-				*cp2++ = '\0';
-				if (*cp2 == '@')
-					cp2++;
-			} else if (c == '@') {
-				*cp2++ = '\0';
-			} else if (
-#ifdef INET6
-				   ai->ai_family != AF_INET6 &&
-#endif
-				   c == ':') {
-				*cp2++ = '\0';
-			} else
-				continue;
-			break;
-		}
-		if (!c)
-			cp2 = 0;
-
-		hints.ai_flags = AI_NUMERICHOST;
-		error = getaddrinfo(cp, NULL, &hints, &res);
-		if (error == EAI_NODATA) {
-			hints.ai_flags = 0;
-			error = getaddrinfo(cp, NULL, &hints, &res);
-		}
-		if (error != 0) {
-			fprintf(stderr, "%s: %s\n", cp, gai_strerror(error));
-			if (error == EAI_SYSTEM)
-				fprintf(stderr, "%s: %s\n", cp,
-					strerror(errno));
-			*cpp = cp;
-			return(0);
-		}
-#ifdef INET6
-		if (res->ai_family == AF_INET6) {
-			sin6 = (struct sockaddr_in6 *)res->ai_addr;
-			inet6_rthdr_add(cmsg, &sin6->sin6_addr,
-					IPV6_RTHDR_LOOSE);
-		} else
-#endif
-	      {
-		_sin = (struct sockaddr_in *)res->ai_addr;
-		memcpy(lsrp, (char *)&_sin->sin_addr, 4);
-		lsrp += 4;
-	      }
-		if (cp2)
-			cp = cp2;
-		else
-			break;
-		/*
-		 * Check to make sure there is space for next address
-		 */
-#ifdef INET6
-		if (res->ai_family == AF_INET6) {
-			if (((char *)CMSG_DATA(cmsg) +
-			     sizeof(struct ip6_rthdr) +
-			     ((inet6_rthdr_segments(cmsg) + 1) *
-			      sizeof(struct in6_addr))) > ep)
-			return -1;
-		} else
-#endif
-		if (lsrp + 4 > ep)
-			return -1;
-		freeaddrinfo(res);
-	}
-#ifdef INET6
-	if (res->ai_family == AF_INET6) {
-		inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE);
-		*lenp = cmsg->cmsg_len;
-	} else
-#endif
-      {
-	if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) {
-		*cpp = 0;
-		*lenp = 0;
-		return -1;
-	}
-	*lsrp++ = IPOPT_NOP; /* 32 bit word align it */
-	*lenp = lsrp - *cpp;
-      }
-	freeaddrinfo(res);
-	return 1;
-}
diff --git a/crypto/telnet/telnet/defines.h b/crypto/telnet/telnet/defines.h
deleted file mode 100644
index 840666deacb6..000000000000
--- a/crypto/telnet/telnet/defines.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)defines.h	8.1 (Berkeley) 6/6/93
- * $FreeBSD$
- */
-
-#define	settimer(x)	clocks.x = clocks.system++
-
-#define	NETADD(c)	{ *netoring.supply = c; ring_supplied(&netoring, 1); }
-#define	NET2ADD(c1,c2)	{ NETADD(c1); NETADD(c2); }
-#define	NETBYTES()	(ring_full_count(&netoring))
-#define	NETROOM()	(ring_empty_count(&netoring))
-
-#define	TTYADD(c)	if (!(SYNCHing||flushout)) { \
-				*ttyoring.supply = c; \
-				ring_supplied(&ttyoring, 1); \
-			}
-#define	TTYBYTES()	(ring_full_count(&ttyoring))
-#define	TTYROOM()	(ring_empty_count(&ttyoring))
-
-/*	Various modes */
-#define	MODE_LOCAL_CHARS(m)	((m)&(MODE_EDIT|MODE_TRAPSIG))
-#define	MODE_LOCAL_ECHO(m)	((m)&MODE_ECHO)
-#define	MODE_COMMAND_LINE(m)	((m)==-1)
-
-#define	CONTROL(x)	((x)&0x1f)		/* CTRL(x) is not portable */
diff --git a/crypto/telnet/telnet/externs.h b/crypto/telnet/telnet/externs.h
deleted file mode 100644
index e9be27e1634f..000000000000
--- a/crypto/telnet/telnet/externs.h
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)externs.h	8.3 (Berkeley) 5/30/95
- *	$FreeBSD$
- */
-
-#ifndef	BSD
-# define BSD 43
-#endif
-
-/*
- * ucb stdio.h defines BSD as something weird
- */
-#if defined(sun) && defined(__svr4__)
-#define BSD 43
-#endif
-
-#ifndef	USE_TERMIO
-# if BSD > 43 || defined(SYSV_TERMIO)
-#  define USE_TERMIO
-# endif
-#endif
-
-#include <stdio.h>
-#include <setjmp.h>
-#include <sys/ioctl.h>
-#include <errno.h>
-#ifdef	USE_TERMIO
-# ifndef	VINTR
-#  include <sys/termios.h>
-# endif
-# define termio termios
-#endif
-#if defined(NO_CC_T) || !defined(USE_TERMIO)
-# if !defined(USE_TERMIO)
-typedef char cc_t;
-# else
-typedef unsigned char cc_t;
-# endif
-#endif
-
-#include <string.h>
-
-#if defined(IPSEC)
-#include <netinet6/ipsec.h>
-#if defined(IPSEC_POLICY_IPSEC)
-extern char *ipsec_policy_in;
-extern char *ipsec_policy_out;
-#endif
-#endif
-
-#ifndef	_POSIX_VDISABLE
-# ifdef sun
-#  include <sys/param.h>	/* pick up VDISABLE definition, mayby */
-# endif
-# ifdef VDISABLE
-#  define _POSIX_VDISABLE VDISABLE
-# else
-#  define _POSIX_VDISABLE ((cc_t)'\377')
-# endif
-#endif
-
-#define	SUBBUFSIZE	256
-
-#if	!defined(P)
-# ifdef	__STDC__
-#  define	P(x)	x
-# else
-#  define	P(x)	()
-# endif
-#endif
-
-extern int
-    autologin,		/* Autologin enabled */
-    skiprc,		/* Don't process the ~/.telnetrc file */
-    eight,		/* use eight bit mode (binary in and/or out */
-    family,		/* address family of peer */
-    flushout,		/* flush output */
-    connected,		/* Are we connected to the other side? */
-    globalmode,		/* Mode tty should be in */
-    telnetport,		/* Are we connected to the telnet port? */
-    localflow,		/* Flow control handled locally */
-    restartany,		/* If flow control, restart output on any character */
-    localchars,		/* we recognize interrupt/quit */
-    donelclchars,	/* the user has set "localchars" */
-    showoptions,
-    net,		/* Network file descriptor */
-    tin,		/* Terminal input file descriptor */
-    tout,		/* Terminal output file descriptor */
-    crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
-    autoflush,		/* flush output when interrupting? */
-    autosynch,		/* send interrupt characters with SYNCH? */
-    SYNCHing,		/* Is the stream in telnet SYNCH mode? */
-    donebinarytoggle,	/* the user has put us in binary */
-    dontlecho,		/* do we suppress local echoing right now? */
-    crmod,
-    netdata,		/* Print out network data flow */
-    prettydump,		/* Print "netdata" output in user readable format */
-    termdata,		/* Print out terminal data flow */
-    telnet_debug,	/* Debug level */
-    doaddrlookup,	/* do a reverse lookup? */
-    clienteof;		/* Client received EOF */
-
-extern cc_t escape;	/* Escape to command mode */
-extern cc_t rlogin;	/* Rlogin mode escape character */
-#ifdef	KLUDGELINEMODE
-extern cc_t echoc;	/* Toggle local echoing */
-#endif
-
-extern char
-    *prompt;		/* Prompt for command. */
-
-extern char
-    doopt[],
-    dont[],
-    will[],
-    wont[],
-    options[],		/* All the little options */
-    *hostname;		/* Who are we connected to? */
-#ifdef	ENCRYPTION
-extern void (*encrypt_output)(unsigned char *, int);
-extern int (*decrypt_input)(int);
-#endif	/* ENCRYPTION */
-
-/*
- * We keep track of each side of the option negotiation.
- */
-
-#define	MY_STATE_WILL		0x01
-#define	MY_WANT_STATE_WILL	0x02
-#define	MY_STATE_DO		0x04
-#define	MY_WANT_STATE_DO	0x08
-
-/*
- * Macros to check the current state of things
- */
-
-#define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)
-#define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)
-#define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)
-#define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)
-
-#define	my_state_is_dont(opt)		(!my_state_is_do(opt))
-#define	my_state_is_wont(opt)		(!my_state_is_will(opt))
-#define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))
-#define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))
-
-#define	set_my_state_do(opt)		{options[opt] |= MY_STATE_DO;}
-#define	set_my_state_will(opt)		{options[opt] |= MY_STATE_WILL;}
-#define	set_my_want_state_do(opt)	{options[opt] |= MY_WANT_STATE_DO;}
-#define	set_my_want_state_will(opt)	{options[opt] |= MY_WANT_STATE_WILL;}
-
-#define	set_my_state_dont(opt)		{options[opt] &= ~MY_STATE_DO;}
-#define	set_my_state_wont(opt)		{options[opt] &= ~MY_STATE_WILL;}
-#define	set_my_want_state_dont(opt)	{options[opt] &= ~MY_WANT_STATE_DO;}
-#define	set_my_want_state_wont(opt)	{options[opt] &= ~MY_WANT_STATE_WILL;}
-
-/*
- * Make everything symetrical
- */
-
-#define	HIS_STATE_WILL			MY_STATE_DO
-#define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO
-#define HIS_STATE_DO			MY_STATE_WILL
-#define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL
-
-#define	his_state_is_do			my_state_is_will
-#define	his_state_is_will		my_state_is_do
-#define his_want_state_is_do		my_want_state_is_will
-#define his_want_state_is_will		my_want_state_is_do
-
-#define	his_state_is_dont		my_state_is_wont
-#define	his_state_is_wont		my_state_is_dont
-#define his_want_state_is_dont		my_want_state_is_wont
-#define his_want_state_is_wont		my_want_state_is_dont
-
-#define	set_his_state_do		set_my_state_will
-#define	set_his_state_will		set_my_state_do
-#define	set_his_want_state_do		set_my_want_state_will
-#define	set_his_want_state_will		set_my_want_state_do
-
-#define	set_his_state_dont		set_my_state_wont
-#define	set_his_state_wont		set_my_state_dont
-#define	set_his_want_state_dont		set_my_want_state_wont
-#define	set_his_want_state_wont		set_my_want_state_dont
-
-#if	defined(USE_TERMIO)
-#define	SIG_FUNC_RET	void
-#else
-#define	SIG_FUNC_RET	int
-#endif
-
-#ifdef	SIGINFO
-extern SIG_FUNC_RET
-    ayt_status(void);
-#endif
-
-extern FILE
-    *NetTrace;		/* Where debugging output goes */
-extern unsigned char
-    NetTraceFile[];	/* Name of file where debugging output goes */
-extern void
-    SetNetTrace(char *);	/* Function to change where debugging goes */
-
-extern jmp_buf
-    peerdied,
-    toplevel;		/* For error conditions. */
-
-extern void
-    command(int, const char *, int),
-    Dump(char, unsigned char *, int),
-    env_init(void),
-    Exit(int),
-    ExitString(const char *, int),
-    init_network(void),
-    init_sys(void),
-    init_telnet(void),
-    init_terminal(void),
-    intp(void),
-    optionstatus(void),
-    printoption(const char *, int, int),
-    printsub(char, unsigned char *, int),
-    quit(void),
-    sendabort(void),
-    sendbrk(void),
-    sendeof(void),
-    sendsusp(void),
-    sendnaws(void),
-    sendayt(void),
-    setconnmode(int),
-    setcommandmode(void),
-    set_escape_char(char *s),
-    setneturg(void),
-    sys_telnet_init(void),
-    telnet(char *),
-    tel_enter_binary(int),
-    tel_leave_binary(int),
-    TerminalFlushOutput(void),
-    TerminalNewMode(int),
-    TerminalRestoreState(void),
-    TerminalSaveState(void),
-    TerminalDefaultChars(void),
-    TerminalSpeeds(long *, long *),
-    tninit(void),
-    upcase(char *),
-    willoption(int),
-    wontoption(int);
-
-extern void
-    send_do(int, int),
-    send_dont(int, int),
-    send_will(int, int),
-    send_wont(int, int);
-
-extern void
-    lm_will(unsigned char *, int),
-    lm_wont(unsigned char *, int),
-    lm_do(unsigned char *, int),
-    lm_dont(unsigned char *, int),
-    lm_mode(unsigned char *, int, int);
-
-extern void
-    slc_init(void),
-    slcstate(void),
-    slc_mode_export(void),
-    slc_mode_import(int),
-    slc_import(int),
-    slc_export(void),
-    slc(unsigned char *, int),
-    slc_check(void),
-    slc_start_reply(void),
-    slc_add_reply(unsigned char, unsigned char, cc_t),
-    slc_end_reply(void);
-extern int
-    getconnmode(void),
-    opt_welldefined(const char *),
-    NetClose(int),
-    netflush(void),
-    process_rings(int, int, int, int, int, int),
-    rlogin_susp(void),
-    SetSockOpt(int, int, int, int),
-    slc_update(void),
-    stilloob(void),
-    telrcv(void),
-    TerminalRead(char *, int),
-    TerminalWrite(char *, int),
-    TerminalAutoFlush(void),
-    TerminalWindowSize(long *, long *),
-    TerminalSpecialChars(int),
-    tn(int, char **),
-    ttyflush(int);
-
-extern void
-    env_opt(unsigned char *, int),
-    env_opt_start(void),
-    env_opt_start_info(void),
-    env_opt_add(unsigned char *),
-    env_opt_end(int);
-
-extern unsigned char
-    *env_default(int, int),
-    *env_getvalue(const unsigned char *);
-
-extern int
-    get_status(char *),
-    dosynch(char *);
-
-extern cc_t
-    *tcval(int);
-
-#ifndef	USE_TERMIO
-
-extern struct	tchars ntc;
-extern struct	ltchars nltc;
-extern struct	sgttyb nttyb;
-
-# define termEofChar		ntc.t_eofc
-# define termEraseChar		nttyb.sg_erase
-# define termFlushChar		nltc.t_flushc
-# define termIntChar		ntc.t_intrc
-# define termKillChar		nttyb.sg_kill
-# define termLiteralNextChar	nltc.t_lnextc
-# define termQuitChar		ntc.t_quitc
-# define termSuspChar		nltc.t_suspc
-# define termRprntChar		nltc.t_rprntc
-# define termWerasChar		nltc.t_werasc
-# define termStartChar		ntc.t_startc
-# define termStopChar		ntc.t_stopc
-# define termForw1Char		ntc.t_brkc
-extern cc_t termForw2Char;
-extern cc_t termAytChar;
-
-# define termEofCharp		(cc_t *)&ntc.t_eofc
-# define termEraseCharp		(cc_t *)&nttyb.sg_erase
-# define termFlushCharp		(cc_t *)&nltc.t_flushc
-# define termIntCharp		(cc_t *)&ntc.t_intrc
-# define termKillCharp		(cc_t *)&nttyb.sg_kill
-# define termLiteralNextCharp	(cc_t *)&nltc.t_lnextc
-# define termQuitCharp		(cc_t *)&ntc.t_quitc
-# define termSuspCharp		(cc_t *)&nltc.t_suspc
-# define termRprntCharp		(cc_t *)&nltc.t_rprntc
-# define termWerasCharp		(cc_t *)&nltc.t_werasc
-# define termStartCharp		(cc_t *)&ntc.t_startc
-# define termStopCharp		(cc_t *)&ntc.t_stopc
-# define termForw1Charp		(cc_t *)&ntc.t_brkc
-# define termForw2Charp		(cc_t *)&termForw2Char
-# define termAytCharp		(cc_t *)&termAytChar
-
-# else
-
-extern struct	termio new_tc;
-
-# define termEofChar		new_tc.c_cc[VEOF]
-# define termEraseChar		new_tc.c_cc[VERASE]
-# define termIntChar		new_tc.c_cc[VINTR]
-# define termKillChar		new_tc.c_cc[VKILL]
-# define termQuitChar		new_tc.c_cc[VQUIT]
-
-# ifndef	VSUSP
-extern cc_t termSuspChar;
-# else
-#  define termSuspChar		new_tc.c_cc[VSUSP]
-# endif
-# if	defined(VFLUSHO) && !defined(VDISCARD)
-#  define VDISCARD VFLUSHO
-# endif
-# ifndef	VDISCARD
-extern cc_t termFlushChar;
-# else
-#  define termFlushChar		new_tc.c_cc[VDISCARD]
-# endif
-# ifndef VWERASE
-extern cc_t termWerasChar;
-# else
-#  define termWerasChar		new_tc.c_cc[VWERASE]
-# endif
-# ifndef	VREPRINT
-extern cc_t termRprntChar;
-# else
-#  define termRprntChar		new_tc.c_cc[VREPRINT]
-# endif
-# ifndef	VLNEXT
-extern cc_t termLiteralNextChar;
-# else
-#  define termLiteralNextChar	new_tc.c_cc[VLNEXT]
-# endif
-# ifndef	VSTART
-extern cc_t termStartChar;
-# else
-#  define termStartChar		new_tc.c_cc[VSTART]
-# endif
-# ifndef	VSTOP
-extern cc_t termStopChar;
-# else
-#  define termStopChar		new_tc.c_cc[VSTOP]
-# endif
-# ifndef	VEOL
-extern cc_t termForw1Char;
-# else
-#  define termForw1Char		new_tc.c_cc[VEOL]
-# endif
-# ifndef	VEOL2
-extern cc_t termForw2Char;
-# else
-#  define termForw2Char		new_tc.c_cc[VEOL]
-# endif
-# ifndef	VSTATUS
-extern cc_t termAytChar;
-#else
-#  define termAytChar		new_tc.c_cc[VSTATUS]
-#endif
-
-# if defined(__STDC__)
-#  define termEofCharp		&termEofChar
-#  define termEraseCharp	&termEraseChar
-#  define termIntCharp		&termIntChar
-#  define termKillCharp		&termKillChar
-#  define termQuitCharp		&termQuitChar
-#  define termSuspCharp		&termSuspChar
-#  define termFlushCharp	&termFlushChar
-#  define termWerasCharp	&termWerasChar
-#  define termRprntCharp	&termRprntChar
-#  define termLiteralNextCharp	&termLiteralNextChar
-#  define termStartCharp	&termStartChar
-#  define termStopCharp		&termStopChar
-#  define termForw1Charp	&termForw1Char
-#  define termForw2Charp	&termForw2Char
-#  define termAytCharp		&termAytChar
-# else
-	/* Work around a compiler bug */
-#  define termEofCharp		0
-#  define termEraseCharp	0
-#  define termIntCharp		0
-#  define termKillCharp		0
-#  define termQuitCharp		0
-#  define termSuspCharp		0
-#  define termFlushCharp	0
-#  define termWerasCharp	0
-#  define termRprntCharp	0
-#  define termLiteralNextCharp	0
-#  define termStartCharp	0
-#  define termStopCharp		0
-#  define termForw1Charp	0
-#  define termForw2Charp	0
-#  define termAytCharp		0
-# endif
-#endif
-
-
-/* Ring buffer structures which are shared */
-
-extern Ring
-    netoring,
-    netiring,
-    ttyoring,
-    ttyiring;
-
-extern void
-    xmitAO(void),
-    xmitEC(void),
-    xmitEL(void);
diff --git a/crypto/telnet/telnet/fdset.h b/crypto/telnet/telnet/fdset.h
deleted file mode 100644
index 045bb7221419..000000000000
--- a/crypto/telnet/telnet/fdset.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)fdset.h	8.1 (Berkeley) 6/6/93
- */
-
-/*
- * The following is defined just in case someone should want to run
- * this telnet on a 4.2 system.
- *
- */
-
-#ifndef	FD_SETSIZE
-
-#define	FD_SET(n, p)	((p)->fds_bits[0] |= (1<<(n)))
-#define	FD_CLR(n, p)	((p)->fds_bits[0] &= ~(1<<(n)))
-#define	FD_ISSET(n, p)	((p)->fds_bits[0] & (1<<(n)))
-#define FD_ZERO(p)	((p)->fds_bits[0] = 0)
-
-#endif
diff --git a/crypto/telnet/telnet/general.h b/crypto/telnet/telnet/general.h
deleted file mode 100644
index 4efa9519469e..000000000000
--- a/crypto/telnet/telnet/general.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)general.h	8.1 (Berkeley) 6/6/93
- */
-
-/*
- * Some general definitions.
- */
-
-
-#define	numberof(x)	(sizeof x/sizeof x[0])
-#define	highestof(x)	(numberof(x)-1)
-
-#define	ClearElement(x)		memset((char *)&x, 0, sizeof x)
-#define	ClearArray(x)		memset((char *)x, 0, sizeof x)
diff --git a/crypto/telnet/telnet/main.c b/crypto/telnet/telnet/main.c
deleted file mode 100644
index e3fe643ebc7f..000000000000
--- a/crypto/telnet/telnet/main.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)main.c	8.3 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "ring.h"
-#include "externs.h"
-#include "defines.h"
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-/* These values need to be the same as defined in libtelnet/kerberos5.c */
-/* Either define them in both places, or put in some common header file. */
-#define OPTS_FORWARD_CREDS	0x00000002
-#define OPTS_FORWARDABLE_CREDS	0x00000001
-
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-char *ipsec_policy_in = NULL;
-char *ipsec_policy_out = NULL;
-#endif
-
-int family = AF_UNSPEC;
-
-/*
- * Initialize variables.
- */
-void
-tninit(void)
-{
-    init_terminal();
-
-    init_network();
-
-    init_telnet();
-
-    init_sys();
-}
-
-static void
-usage(void)
-{
-	fprintf(stderr, "usage: %s %s%s%s%s\n",
-	    prompt,
-#ifdef	AUTHENTICATION
-	    "[-4] [-6] [-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-c] [-d]",
-	    "\n\t[-e char] [-k realm] [-l user] [-f/-F] [-n tracefile] ",
-#else
-	    "[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-c] [-d]",
-	    "\n\t[-e char] [-l user] [-n tracefile] ",
-#endif
-	    "[-r] [-s src_addr] [-u] ",
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-	    "[-P policy] "
-#endif
-#ifdef	ENCRYPTION
-	    "[-y] [host-name [port]]"
-#else	/* ENCRYPTION */
-	    "[host-name [port]]"
-#endif	/* ENCRYPTION */
-	);
-	exit(1);
-}
-
-/*
- * main.  Parse arguments, invoke the protocol or command parser.
- */
-
-int
-main(int argc, char *argv[])
-{
-	int ch;
-	char *user;
-	char *src_addr = NULL;
-#ifdef	FORWARD
-	extern int forward_flags;
-#endif	/* FORWARD */
-
-	tninit();		/* Clear out things */
-
-	TerminalSaveState();
-
-	if ((prompt = strrchr(argv[0], '/')))
-		++prompt;
-	else
-		prompt = argv[0];
-
-	user = NULL;
-
-	rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
-#ifdef AUTHENTICATION
-	autologin = 1;
-#else
-	autologin = -1;
-#endif
-
-#ifdef	ENCRYPTION
-	encrypt_auto(1);
-	decrypt_auto(1);
-#endif
-
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-#define IPSECOPT	"P:"
-#else
-#define IPSECOPT
-#endif
-	while ((ch = getopt(argc, argv,
-			    "468EKLNS:X:acde:fFk:l:n:rs:t:uxy" IPSECOPT)) != -1)
-#undef IPSECOPT
-	{
-		switch(ch) {
-		case '4':
-			family = AF_INET;
-			break;
-#ifdef INET6
-		case '6':
-			family = AF_INET6;
-			break;
-#endif
-		case '8':
-			eight = 3;	/* binary output and input */
-			break;
-		case 'E':
-			rlogin = escape = _POSIX_VDISABLE;
-			break;
-		case 'K':
-#ifdef	AUTHENTICATION
-			autologin = 0;
-#endif
-			break;
-		case 'L':
-			eight |= 2;	/* binary output only */
-			break;
-		case 'N':
-			doaddrlookup = 0;
-			break;
-		case 'S':
-		    {
-#ifdef	HAS_GETTOS
-			extern int tos;
-
-			if ((tos = parsetos(optarg, "tcp")) < 0)
-				fprintf(stderr, "%s%s%s%s\n",
-					prompt, ": Bad TOS argument '",
-					optarg,
-					"; will try to use default TOS");
-#else
-			fprintf(stderr,
-			   "%s: Warning: -S ignored, no parsetos() support.\n",
-								prompt);
-#endif
-		    }
-			break;
-		case 'X':
-#ifdef	AUTHENTICATION
-			auth_disable_name(optarg);
-#endif
-			break;
-		case 'a':
-#ifdef	AUTHENTICATION
-			/* It's the default now, so ignore */
-#else
-			autologin = 1;
-#endif
-			break;
-		case 'c':
-			skiprc = 1;
-			break;
-		case 'd':
-			telnet_debug = 1;
-			break;
-		case 'e':
-			set_escape_char(optarg);
-			break;
-		case 'f':
-#ifdef	AUTHENTICATION
-#if defined(KRB5) && defined(FORWARD)
-			if (forward_flags & OPTS_FORWARD_CREDS) {
-			    fprintf(stderr,
-				    "%s: Only one of -f and -F allowed.\n",
-				    prompt);
-			    usage();
-			}
-			forward_flags |= OPTS_FORWARD_CREDS;
-#else
-			fprintf(stderr,
-			 "%s: Warning: -f ignored, no Kerberos V5 support.\n",
-				prompt);
-#endif
-#else
-			fprintf(stderr,
-			 "%s: Warning: -f ignored, no Kerberos V5 support.\n",
-				prompt);
-#endif
-			break;
-		case 'F':
-#ifdef	AUTHENTICATION
-#if defined(KRB5) && defined(FORWARD)
-			if (forward_flags & OPTS_FORWARD_CREDS) {
-			    fprintf(stderr,
-				    "%s: Only one of -f and -F allowed.\n",
-				    prompt);
-			    usage();
-			}
-			forward_flags |= OPTS_FORWARD_CREDS;
-			forward_flags |= OPTS_FORWARDABLE_CREDS;
-#else
-			fprintf(stderr,
-			 "%s: Warning: -F ignored, no Kerberos V5 support.\n",
-				prompt);
-#endif
-#else
-			fprintf(stderr,
-			 "%s: Warning: -F ignored, no Kerberos V5 support.\n",
-				prompt);
-#endif
-			break;
-		case 'k':
-#ifdef	AUTHENTICATION
-#if defined(KRB4)
-		    {
-			extern char *dest_realm, dst_realm_buf[], dst_realm_sz;
-			dest_realm = dst_realm_buf;
-			(void)strncpy(dest_realm, optarg, dst_realm_sz);
-		    }
-#else
-			fprintf(stderr,
-			   "%s: Warning: -k ignored, no Kerberos V4 support.\n",
-								prompt);
-#endif
-#else
-			fprintf(stderr,
-			   "%s: Warning: -k ignored, no Kerberos V4 support.\n",
-								prompt);
-#endif
-			break;
-		case 'l':
-#ifdef	AUTHENTICATION
-			/* This is the default now, so ignore it */
-#else
-			autologin = 1;
-#endif
-			user = optarg;
-			break;
-		case 'n':
-				SetNetTrace(optarg);
-			break;
-		case 'r':
-			rlogin = '~';
-			break;
-		case 's':
-			src_addr = optarg;
-			break;
-		case 'u':
-			family = AF_UNIX;
-			break;
-		case 'x':
-#ifndef	ENCRYPTION
-			fprintf(stderr,
-			    "%s: Warning: -x ignored, no ENCRYPT support.\n",
-								prompt);
-#endif	/* ENCRYPTION */
-			break;
-		case 'y':
-#ifdef	ENCRYPTION
-			encrypt_auto(0);
-			decrypt_auto(0);
-#else
-			fprintf(stderr,
-			    "%s: Warning: -y ignored, no ENCRYPT support.\n",
-								prompt);
-#endif	/* ENCRYPTION */
-			break;
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-		case 'P':
-			if (!strncmp("in", optarg, 2))
-				ipsec_policy_in = strdup(optarg);
-			else if (!strncmp("out", optarg, 3))
-				ipsec_policy_out = strdup(optarg);
-			else
-				usage();
-			break;
-#endif
-		case '?':
-		default:
-			usage();
-			/* NOTREACHED */
-		}
-	}
-	if (autologin == -1)
-		autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
-
-	argc -= optind;
-	argv += optind;
-
-	if (argc) {
-		char *args[9], **argp = args;
-
-		if (argc > 2)
-			usage();
-		*argp++ = prompt;
-		if (user) {
-			*argp++ = strdup("-l");
-			*argp++ = user;
-		}
-		if (src_addr) {
-			*argp++ = strdup("-s");
-			*argp++ = src_addr;
-		}
-		*argp++ = argv[0];		/* host */
-		if (argc > 1)
-			*argp++ = argv[1];	/* port */
-		*argp = 0;
-
-		if (setjmp(toplevel) != 0)
-			Exit(0);
-		if (tn(argp - args, args) == 1)
-			return (0);
-		else
-			return (1);
-	}
-	(void)setjmp(toplevel);
-	for (;;) {
-			command(1, 0, 0);
-	}
-	return 0;
-}
diff --git a/crypto/telnet/telnet/network.c b/crypto/telnet/telnet/network.c
deleted file mode 100644
index bb75d6309f90..000000000000
--- a/crypto/telnet/telnet/network.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)network.c	8.2 (Berkeley) 12/15/93";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-
-#include <errno.h>
-#include <stdlib.h>
-
-#include <arpa/telnet.h>
-#include <unistd.h>
-
-#include "ring.h"
-
-#include "defines.h"
-#include "externs.h"
-#include "fdset.h"
-
-Ring		netoring, netiring;
-unsigned char	netobuf[2*BUFSIZ], netibuf[BUFSIZ];
-
-/*
- * Initialize internal network data structures.
- */
-
-void
-init_network(void)
-{
-    if (ring_init(&netoring, netobuf, sizeof netobuf) != 1) {
-	exit(1);
-    }
-    if (ring_init(&netiring, netibuf, sizeof netibuf) != 1) {
-	exit(1);
-    }
-    NetTrace = stdout;
-}
-
-
-/*
- * Check to see if any out-of-band data exists on a socket (for
- * Telnet "synch" processing).
- */
-
-int
-stilloob(void)
-{
-    static struct timeval timeout = { 0, 0 };
-    fd_set	excepts;
-    int value;
-
-    do {
-	FD_ZERO(&excepts);
-	FD_SET(net, &excepts);
-	value = select(net+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout);
-    } while ((value == -1) && (errno == EINTR));
-
-    if (value < 0) {
-	perror("select");
-	(void) quit();
-	/* NOTREACHED */
-    }
-    if (FD_ISSET(net, &excepts)) {
-	return 1;
-    } else {
-	return 0;
-    }
-}
-
-
-/*
- *  setneturg()
- *
- *	Sets "neturg" to the current location.
- */
-
-void
-setneturg(void)
-{
-    ring_mark(&netoring);
-}
-
-
-/*
- *  netflush
- *		Send as much data as possible to the network,
- *	handling requests for urgent data.
- *
- *		The return value indicates whether we did any
- *	useful work.
- */
-
-int
-netflush(void)
-{
-    int n, n1;
-
-#ifdef	ENCRYPTION
-    if (encrypt_output)
-	ring_encrypt(&netoring, encrypt_output);
-#endif	/* ENCRYPTION */
-    if ((n1 = n = ring_full_consecutive(&netoring)) > 0) {
-	if (!ring_at_mark(&netoring)) {
-	    n = send(net, (char *)netoring.consume, n, 0); /* normal write */
-	} else {
-	    /*
-	     * In 4.2 (and 4.3) systems, there is some question about
-	     * what byte in a sendOOB operation is the "OOB" data.
-	     * To make ourselves compatible, we only send ONE byte
-	     * out of band, the one WE THINK should be OOB (though
-	     * we really have more the TCP philosophy of urgent data
-	     * rather than the Unix philosophy of OOB data).
-	     */
-	    n = send(net, (char *)netoring.consume, 1, MSG_OOB);/* URGENT data */
-	}
-    }
-    if (n < 0) {
-	if (errno != ENOBUFS && errno != EWOULDBLOCK) {
-	    setcommandmode();
-	    perror(hostname);
-	    (void)NetClose(net);
-	    ring_clear_mark(&netoring);
-	    longjmp(peerdied, -1);
-	    /*NOTREACHED*/
-	}
-	n = 0;
-    }
-    if (netdata && n) {
-	Dump('>', netoring.consume, n);
-    }
-    if (n) {
-	ring_consumed(&netoring, n);
-	/*
-	 * If we sent all, and more to send, then recurse to pick
-	 * up the other half.
-	 */
-	if ((n1 == n) && ring_full_consecutive(&netoring)) {
-	    (void) netflush();
-	}
-	return 1;
-    } else {
-	return 0;
-    }
-}
diff --git a/crypto/telnet/telnet/ring.c b/crypto/telnet/telnet/ring.c
deleted file mode 100644
index 6c2b7efc5a51..000000000000
--- a/crypto/telnet/telnet/ring.c
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)ring.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * This defines a structure for a ring buffer.
- *
- * The circular buffer has two parts:
- *(((
- *	full:	[consume, supply)
- *	empty:	[supply, consume)
- *]]]
- *
- */
-
-#include	<errno.h>
-#include	<stdio.h>
-#include	<string.h>
-
-#ifdef	size_t
-#undef	size_t
-#endif
-
-#include	<sys/types.h>
-#ifndef	FILIO_H
-#include	<sys/ioctl.h>
-#endif
-#include	<sys/socket.h>
-
-#include	"ring.h"
-#include	"general.h"
-
-/* Internal macros */
-
-#if	!defined(MIN)
-#define	MIN(a,b)	(((a)<(b))? (a):(b))
-#endif	/* !defined(MIN) */
-
-#define	ring_subtract(d,a,b)	(((a)-(b) >= 0)? \
-					(a)-(b): (((a)-(b))+(d)->size))
-
-#define	ring_increment(d,a,c)	(((a)+(c) < (d)->top)? \
-					(a)+(c) : (((a)+(c))-(d)->size))
-
-#define	ring_decrement(d,a,c)	(((a)-(c) >= (d)->bottom)? \
-					(a)-(c) : (((a)-(c))-(d)->size))
-
-
-/*
- * The following is a clock, used to determine full, empty, etc.
- *
- * There is some trickiness here.  Since the ring buffers are initialized
- * to ZERO on allocation, we need to make sure, when interpreting the
- * clock, that when the times are EQUAL, then the buffer is FULL.
- */
-static u_long ring_clock = 0;
-
-
-#define	ring_empty(d) (((d)->consume == (d)->supply) && \
-				((d)->consumetime >= (d)->supplytime))
-#define	ring_full(d) (((d)->supply == (d)->consume) && \
-				((d)->supplytime > (d)->consumetime))
-
-/* Buffer state transition routines */
-
-int
-ring_init(Ring *ring, unsigned char *buffer, int count)
-{
-    memset((char *)ring, 0, sizeof *ring);
-
-    ring->size = count;
-
-    ring->supply = ring->consume = ring->bottom = buffer;
-
-    ring->top = ring->bottom+ring->size;
-
-#ifdef	ENCRYPTION
-    ring->clearto = 0;
-#endif	/* ENCRYPTION */
-
-    return 1;
-}
-
-/* Mark routines */
-
-/*
- * Mark the most recently supplied byte.
- */
-
-void
-ring_mark(Ring *ring)
-{
-    ring->mark = ring_decrement(ring, ring->supply, 1);
-}
-
-/*
- * Is the ring pointing to the mark?
- */
-
-int
-ring_at_mark(Ring *ring)
-{
-    if (ring->mark == ring->consume) {
-	return 1;
-    } else {
-	return 0;
-    }
-}
-
-/*
- * Clear any mark set on the ring.
- */
-
-void
-ring_clear_mark(Ring *ring)
-{
-    ring->mark = 0;
-}
-
-/*
- * Add characters from current segment to ring buffer.
- */
-void
-ring_supplied(Ring *ring, int count)
-{
-    ring->supply = ring_increment(ring, ring->supply, count);
-    ring->supplytime = ++ring_clock;
-}
-
-/*
- * We have just consumed "c" bytes.
- */
-void
-ring_consumed(Ring *ring, int count)
-{
-    if (count == 0)	/* don't update anything */
-	return;
-
-    if (ring->mark &&
-		(ring_subtract(ring, ring->mark, ring->consume) < count)) {
-	ring->mark = 0;
-    }
-#ifdef	ENCRYPTION
-    if (ring->consume < ring->clearto &&
-		ring->clearto <= ring->consume + count)
-	ring->clearto = 0;
-    else if (ring->consume + count > ring->top &&
-		ring->bottom <= ring->clearto &&
-		ring->bottom + ((ring->consume + count) - ring->top))
-	ring->clearto = 0;
-#endif	/* ENCRYPTION */
-    ring->consume = ring_increment(ring, ring->consume, count);
-    ring->consumetime = ++ring_clock;
-    /*
-     * Try to encourage "ring_empty_consecutive()" to be large.
-     */
-    if (ring_empty(ring)) {
-	ring->consume = ring->supply = ring->bottom;
-    }
-}
-
-
-
-/* Buffer state query routines */
-
-
-/* Number of bytes that may be supplied */
-int
-ring_empty_count(Ring *ring)
-{
-    if (ring_empty(ring)) {	/* if empty */
-	    return ring->size;
-    } else {
-	return ring_subtract(ring, ring->consume, ring->supply);
-    }
-}
-
-/* number of CONSECUTIVE bytes that may be supplied */
-int
-ring_empty_consecutive(Ring *ring)
-{
-    if ((ring->consume < ring->supply) || ring_empty(ring)) {
-			    /*
-			     * if consume is "below" supply, or empty, then
-			     * return distance to the top
-			     */
-	return ring_subtract(ring, ring->top, ring->supply);
-    } else {
-				    /*
-				     * else, return what we may.
-				     */
-	return ring_subtract(ring, ring->consume, ring->supply);
-    }
-}
-
-/* Return the number of bytes that are available for consuming
- * (but don't give more than enough to get to cross over set mark)
- */
-
-int
-ring_full_count(Ring *ring)
-{
-    if ((ring->mark == 0) || (ring->mark == ring->consume)) {
-	if (ring_full(ring)) {
-	    return ring->size;	/* nothing consumed, but full */
-	} else {
-	    return ring_subtract(ring, ring->supply, ring->consume);
-	}
-    } else {
-	return ring_subtract(ring, ring->mark, ring->consume);
-    }
-}
-
-/*
- * Return the number of CONSECUTIVE bytes available for consuming.
- * However, don't return more than enough to cross over set mark.
- */
-int
-ring_full_consecutive(Ring *ring)
-{
-    if ((ring->mark == 0) || (ring->mark == ring->consume)) {
-	if ((ring->supply < ring->consume) || ring_full(ring)) {
-	    return ring_subtract(ring, ring->top, ring->consume);
-	} else {
-	    return ring_subtract(ring, ring->supply, ring->consume);
-	}
-    } else {
-	if (ring->mark < ring->consume) {
-	    return ring_subtract(ring, ring->top, ring->consume);
-	} else {	/* Else, distance to mark */
-	    return ring_subtract(ring, ring->mark, ring->consume);
-	}
-    }
-}
-
-/*
- * Move data into the "supply" portion of of the ring buffer.
- */
-void
-ring_supply_data(Ring *ring, unsigned char *buffer, int count)
-{
-    int i;
-
-    while (count) {
-	i = MIN(count, ring_empty_consecutive(ring));
-	memcpy(ring->supply, buffer, i);
-	ring_supplied(ring, i);
-	count -= i;
-	buffer += i;
-    }
-}
-
-#ifdef	ENCRYPTION
-void
-ring_encrypt(Ring *ring, void (*encryptor)(unsigned char *, int))
-{
-    unsigned char *s, *c;
-
-    if (ring_empty(ring) || ring->clearto == ring->supply)
-	return;
-
-    if (!(c = ring->clearto))
-	c = ring->consume;
-
-    s = ring->supply;
-
-    if (s <= c) {
-	(*encryptor)(c, ring->top - c);
-	(*encryptor)(ring->bottom, s - ring->bottom);
-    } else
-	(*encryptor)(c, s - c);
-
-    ring->clearto = ring->supply;
-}
-
-    void
-ring_clearto(ring)
-    Ring *ring;
-{
-    if (!ring_empty(ring))
-	ring->clearto = ring->supply;
-    else
-	ring->clearto = 0;
-}
-#endif	/* ENCRYPTION */
diff --git a/crypto/telnet/telnet/ring.h b/crypto/telnet/telnet/ring.h
deleted file mode 100644
index 516b7a5d806a..000000000000
--- a/crypto/telnet/telnet/ring.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)ring.h	8.1 (Berkeley) 6/6/93
- * $FreeBSD$
- */
-
-#if defined(P)
-# undef P
-#endif
-
-#if defined(__STDC__) || defined(LINT_ARGS)
-# define	P(x)	x
-#else
-# define	P(x)	()
-#endif
-
-/*
- * This defines a structure for a ring buffer.
- *
- * The circular buffer has two parts:
- *(((
- *	full:	[consume, supply)
- *	empty:	[supply, consume)
- *]]]
- *
- */
-typedef struct {
-    unsigned char	*consume,	/* where data comes out of */
-			*supply,	/* where data comes in to */
-			*bottom,	/* lowest address in buffer */
-			*top,		/* highest address+1 in buffer */
-			*mark;		/* marker (user defined) */
-#ifdef	ENCRYPTION
-    unsigned char	*clearto;	/* Data to this point is clear text */
-    unsigned char	*encryyptedto;	/* Data is encrypted to here */
-#endif	/* ENCRYPTION */
-    int		size;		/* size in bytes of buffer */
-    u_long	consumetime,	/* help us keep straight full, empty, etc. */
-		supplytime;
-} Ring;
-
-/* Here are some functions and macros to deal with the ring buffer */
-
-/* Initialization routine */
-extern int
-	ring_init(Ring *ring, unsigned char *buffer, int count);
-
-/* Data movement routines */
-extern void
-	ring_supply_data(Ring *ring, unsigned char *buffer, int count);
-#ifdef notdef
-extern void
-	ring_consume_data(Ring *ring, unsigned char *buffer, int count);
-#endif
-
-/* Buffer state transition routines */
-extern void
-	ring_supplied(Ring *ring, int count),
-	ring_consumed(Ring *ring, int count);
-
-/* Buffer state query routines */
-extern int
-	ring_at_mark(Ring *),
-	ring_empty_count(Ring *ring),
-	ring_empty_consecutive(Ring *ring),
-	ring_full_count(Ring *ring),
-	ring_full_consecutive(Ring *ring);
-
-#ifdef	ENCRYPTION
-extern void
-	ring_encrypt(Ring *ring, void (*func)(unsigned char *, int)),
-	ring_clearto(Ring *ring);
-#endif	/* ENCRYPTION */
-
-extern void
-	ring_clear_mark(Ring *),
-	ring_mark(Ring *);
diff --git a/crypto/telnet/telnet/sys_bsd.c b/crypto/telnet/telnet/sys_bsd.c
deleted file mode 100644
index 45ef1e2aa3cd..000000000000
--- a/crypto/telnet/telnet/sys_bsd.c
+++ /dev/null
@@ -1,1145 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)sys_bsd.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * The following routines try to encapsulate what is system dependent
- * (at least between 4.x and dos) which is used in telnet.c.
- */
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <arpa/telnet.h>
-
-#include "ring.h"
-#include "fdset.h"
-#include "defines.h"
-#include "externs.h"
-#include "types.h"
-
-int
-	tout,			/* Output file descriptor */
-	tin,			/* Input file descriptor */
-	net;
-
-#ifndef	USE_TERMIO
-struct	tchars otc = { 0 }, ntc = { 0 };
-struct	ltchars oltc = { 0 }, nltc = { 0 };
-struct	sgttyb ottyb = { 0 }, nttyb = { 0 };
-int	olmode = 0;
-# define cfgetispeed(ptr)	(ptr)->sg_ispeed
-# define cfgetospeed(ptr)	(ptr)->sg_ospeed
-# define old_tc ottyb
-
-#else	/* USE_TERMIO */
-struct	termio old_tc = { 0, 0, 0, 0, {}, 0, 0 };
-
-# ifndef	TCSANOW
-#  ifdef TCSETS
-#   define	TCSANOW		TCSETS
-#   define	TCSADRAIN	TCSETSW
-#   define	tcgetattr(f, t) ioctl(f, TCGETS, (char *)t)
-#  else
-#   ifdef TCSETA
-#    define	TCSANOW		TCSETA
-#    define	TCSADRAIN	TCSETAW
-#    define	tcgetattr(f, t) ioctl(f, TCGETA, (char *)t)
-#   else
-#    define	TCSANOW		TIOCSETA
-#    define	TCSADRAIN	TIOCSETAW
-#    define	tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t)
-#   endif
-#  endif
-#  define	tcsetattr(f, a, t) ioctl(f, a, (char *)t)
-#  define	cfgetospeed(ptr)	((ptr)->c_cflag&CBAUD)
-#  ifdef CIBAUD
-#   define	cfgetispeed(ptr)	(((ptr)->c_cflag&CIBAUD) >> IBSHIFT)
-#  else
-#   define	cfgetispeed(ptr)	cfgetospeed(ptr)
-#  endif
-# endif /* TCSANOW */
-# ifdef	sysV88
-# define TIOCFLUSH TC_PX_DRAIN
-# endif
-#endif	/* USE_TERMIO */
-
-static fd_set *ibitsp, *obitsp, *xbitsp;
-int fdsn;
-
-#ifdef	SIGINT
-static SIG_FUNC_RET intr(int);
-#endif	/* SIGINT */
-#ifdef	SIGQUIT
-static SIG_FUNC_RET intr2(int);
-#endif	/* SIGQUIT */
-#ifdef	SIGTSTP
-static SIG_FUNC_RET susp(int);
-#endif	/* SIGTSTP */
-#ifdef	SIGINFO
-static SIG_FUNC_RET ayt(int);
-#endif
-
-void
-init_sys(void)
-{
-    tout = fileno(stdout);
-    tin = fileno(stdin);
-    errno = 0;
-}
-
-int
-TerminalWrite(char *buf, int n)
-{
-    return write(tout, buf, n);
-}
-
-int
-TerminalRead(char *buf, int n)
-{
-    return read(tin, buf, n);
-}
-
-/*
- *
- */
-
-int
-TerminalAutoFlush(void)
-{
-#if	defined(LNOFLSH)
-    int flush;
-
-    ioctl(0, TIOCLGET, (char *)&flush);
-    return !(flush&LNOFLSH);	/* if LNOFLSH, no autoflush */
-#else	/* LNOFLSH */
-    return 1;
-#endif	/* LNOFLSH */
-}
-
-#ifdef	KLUDGELINEMODE
-extern int kludgelinemode;
-#endif
-/*
- * TerminalSpecialChars()
- *
- * Look at an input character to see if it is a special character
- * and decide what to do.
- *
- * Output:
- *
- *	0	Don't add this character.
- *	1	Do add this character
- */
-
-int
-TerminalSpecialChars(int c)
-{
-    if (c == termIntChar) {
-	intp();
-	return 0;
-    } else if (c == termQuitChar) {
-#ifdef	KLUDGELINEMODE
-	if (kludgelinemode)
-	    sendbrk();
-	else
-#endif
-	    sendabort();
-	return 0;
-    } else if (c == termEofChar) {
-	if (my_want_state_is_will(TELOPT_LINEMODE)) {
-	    sendeof();
-	    return 0;
-	}
-	return 1;
-    } else if (c == termSuspChar) {
-	sendsusp();
-	return(0);
-    } else if (c == termFlushChar) {
-	xmitAO();		/* Transmit Abort Output */
-	return 0;
-    } else if (!MODE_LOCAL_CHARS(globalmode)) {
-	if (c == termKillChar) {
-	    xmitEL();
-	    return 0;
-	} else if (c == termEraseChar) {
-	    xmitEC();		/* Transmit Erase Character */
-	    return 0;
-	}
-    }
-    return 1;
-}
-
-
-/*
- * Flush output to the terminal
- */
-
-void
-TerminalFlushOutput(void)
-{
-#ifdef	TIOCFLUSH
-    (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0);
-#else
-    (void) ioctl(fileno(stdout), TCFLSH, (char *) 0);
-#endif
-}
-
-void
-TerminalSaveState(void)
-{
-#ifndef	USE_TERMIO
-    ioctl(0, TIOCGETP, (char *)&ottyb);
-    ioctl(0, TIOCGETC, (char *)&otc);
-    ioctl(0, TIOCGLTC, (char *)&oltc);
-    ioctl(0, TIOCLGET, (char *)&olmode);
-
-    ntc = otc;
-    nltc = oltc;
-    nttyb = ottyb;
-
-#else	/* USE_TERMIO */
-    tcgetattr(0, &old_tc);
-
-    new_tc = old_tc;
-
-#ifndef	VDISCARD
-    termFlushChar = CONTROL('O');
-#endif
-#ifndef	VWERASE
-    termWerasChar = CONTROL('W');
-#endif
-#ifndef	VREPRINT
-    termRprntChar = CONTROL('R');
-#endif
-#ifndef	VLNEXT
-    termLiteralNextChar = CONTROL('V');
-#endif
-#ifndef	VSTART
-    termStartChar = CONTROL('Q');
-#endif
-#ifndef	VSTOP
-    termStopChar = CONTROL('S');
-#endif
-#ifndef	VSTATUS
-    termAytChar = CONTROL('T');
-#endif
-#endif	/* USE_TERMIO */
-}
-
-cc_t *
-tcval(int func)
-{
-    switch(func) {
-    case SLC_IP:	return(&termIntChar);
-    case SLC_ABORT:	return(&termQuitChar);
-    case SLC_EOF:	return(&termEofChar);
-    case SLC_EC:	return(&termEraseChar);
-    case SLC_EL:	return(&termKillChar);
-    case SLC_XON:	return(&termStartChar);
-    case SLC_XOFF:	return(&termStopChar);
-    case SLC_FORW1:	return(&termForw1Char);
-#ifdef	USE_TERMIO
-    case SLC_FORW2:	return(&termForw2Char);
-# ifdef	VDISCARD
-    case SLC_AO:	return(&termFlushChar);
-# endif
-# ifdef	VSUSP
-    case SLC_SUSP:	return(&termSuspChar);
-# endif
-# ifdef	VWERASE
-    case SLC_EW:	return(&termWerasChar);
-# endif
-# ifdef	VREPRINT
-    case SLC_RP:	return(&termRprntChar);
-# endif
-# ifdef	VLNEXT
-    case SLC_LNEXT:	return(&termLiteralNextChar);
-# endif
-# ifdef	VSTATUS
-    case SLC_AYT:	return(&termAytChar);
-# endif
-#endif
-
-    case SLC_SYNCH:
-    case SLC_BRK:
-    case SLC_EOR:
-    default:
-	return((cc_t *)0);
-    }
-}
-
-void
-TerminalDefaultChars(void)
-{
-#ifndef	USE_TERMIO
-    ntc = otc;
-    nltc = oltc;
-    nttyb.sg_kill = ottyb.sg_kill;
-    nttyb.sg_erase = ottyb.sg_erase;
-#else	/* USE_TERMIO */
-    memcpy(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc));
-# ifndef	VDISCARD
-    termFlushChar = CONTROL('O');
-# endif
-# ifndef	VWERASE
-    termWerasChar = CONTROL('W');
-# endif
-# ifndef	VREPRINT
-    termRprntChar = CONTROL('R');
-# endif
-# ifndef	VLNEXT
-    termLiteralNextChar = CONTROL('V');
-# endif
-# ifndef	VSTART
-    termStartChar = CONTROL('Q');
-# endif
-# ifndef	VSTOP
-    termStopChar = CONTROL('S');
-# endif
-# ifndef	VSTATUS
-    termAytChar = CONTROL('T');
-# endif
-#endif	/* USE_TERMIO */
-}
-
-/*
- * TerminalNewMode - set up terminal to a specific mode.
- *	MODE_ECHO: do local terminal echo
- *	MODE_FLOW: do local flow control
- *	MODE_TRAPSIG: do local mapping to TELNET IAC sequences
- *	MODE_EDIT: do local line editing
- *
- *	Command mode:
- *		MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG
- *		local echo
- *		local editing
- *		local xon/xoff
- *		local signal mapping
- *
- *	Linemode:
- *		local/no editing
- *	Both Linemode and Single Character mode:
- *		local/remote echo
- *		local/no xon/xoff
- *		local/no signal mapping
- */
-
-void
-TerminalNewMode(int f)
-{
-    static int prevmode = 0;
-#ifndef	USE_TERMIO
-    struct tchars tc;
-    struct ltchars ltc;
-    struct sgttyb sb;
-    int lmode;
-#else	/* USE_TERMIO */
-    struct termio tmp_tc;
-#endif	/* USE_TERMIO */
-    int onoff;
-    int old;
-    cc_t esc;
-
-    globalmode = f&~MODE_FORCE;
-    if (prevmode == f)
-	return;
-
-    /*
-     * Write any outstanding data before switching modes
-     * ttyflush() returns 0 only when there is no more data
-     * left to write out, it returns -1 if it couldn't do
-     * anything at all, otherwise it returns 1 + the number
-     * of characters left to write.
-#ifndef	USE_TERMIO
-     * We would really like ask the kernel to wait for the output
-     * to drain, like we can do with the TCSADRAIN, but we don't have
-     * that option.  The only ioctl that waits for the output to
-     * drain, TIOCSETP, also flushes the input queue, which is NOT
-     * what we want (TIOCSETP is like TCSADFLUSH).
-#endif
-     */
-    old = ttyflush(SYNCHing|flushout);
-    if (old < 0 || old > 1) {
-#ifdef	USE_TERMIO
-	tcgetattr(tin, &tmp_tc);
-#endif	/* USE_TERMIO */
-	do {
-	    /*
-	     * Wait for data to drain, then flush again.
-	     */
-#ifdef	USE_TERMIO
-	    tcsetattr(tin, TCSADRAIN, &tmp_tc);
-#endif	/* USE_TERMIO */
-	    old = ttyflush(SYNCHing|flushout);
-	} while (old < 0 || old > 1);
-    }
-
-    old = prevmode;
-    prevmode = f&~MODE_FORCE;
-#ifndef	USE_TERMIO
-    sb = nttyb;
-    tc = ntc;
-    ltc = nltc;
-    lmode = olmode;
-#else
-    tmp_tc = new_tc;
-#endif
-
-    if (f&MODE_ECHO) {
-#ifndef	USE_TERMIO
-	sb.sg_flags |= ECHO;
-#else
-	tmp_tc.c_lflag |= ECHO;
-	tmp_tc.c_oflag |= ONLCR;
-	if (crlf)
-		tmp_tc.c_iflag |= ICRNL;
-#endif
-    } else {
-#ifndef	USE_TERMIO
-	sb.sg_flags &= ~ECHO;
-#else
-	tmp_tc.c_lflag &= ~ECHO;
-	tmp_tc.c_oflag &= ~ONLCR;
-#endif
-    }
-
-    if ((f&MODE_FLOW) == 0) {
-#ifndef	USE_TERMIO
-	tc.t_startc = _POSIX_VDISABLE;
-	tc.t_stopc = _POSIX_VDISABLE;
-#else
-	tmp_tc.c_iflag &= ~(IXOFF|IXON);	/* Leave the IXANY bit alone */
-    } else {
-	if (restartany < 0) {
-		tmp_tc.c_iflag |= IXOFF|IXON;	/* Leave the IXANY bit alone */
-	} else if (restartany > 0) {
-		tmp_tc.c_iflag |= IXOFF|IXON|IXANY;
-	} else {
-		tmp_tc.c_iflag |= IXOFF|IXON;
-		tmp_tc.c_iflag &= ~IXANY;
-	}
-#endif
-    }
-
-    if ((f&MODE_TRAPSIG) == 0) {
-#ifndef	USE_TERMIO
-	tc.t_intrc = _POSIX_VDISABLE;
-	tc.t_quitc = _POSIX_VDISABLE;
-	tc.t_eofc = _POSIX_VDISABLE;
-	ltc.t_suspc = _POSIX_VDISABLE;
-	ltc.t_dsuspc = _POSIX_VDISABLE;
-#else
-	tmp_tc.c_lflag &= ~ISIG;
-#endif
-	localchars = 0;
-    } else {
-#ifdef	USE_TERMIO
-	tmp_tc.c_lflag |= ISIG;
-#endif
-	localchars = 1;
-    }
-
-    if (f&MODE_EDIT) {
-#ifndef	USE_TERMIO
-	sb.sg_flags &= ~CBREAK;
-	sb.sg_flags |= CRMOD;
-#else
-	tmp_tc.c_lflag |= ICANON;
-#endif
-    } else {
-#ifndef	USE_TERMIO
-	sb.sg_flags |= CBREAK;
-	if (f&MODE_ECHO)
-	    sb.sg_flags |= CRMOD;
-	else
-	    sb.sg_flags &= ~CRMOD;
-#else
-	tmp_tc.c_lflag &= ~ICANON;
-	tmp_tc.c_iflag &= ~ICRNL;
-	tmp_tc.c_cc[VMIN] = 1;
-	tmp_tc.c_cc[VTIME] = 0;
-#endif
-    }
-
-    if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) {
-#ifndef	USE_TERMIO
-	ltc.t_lnextc = _POSIX_VDISABLE;
-#else
-# ifdef VLNEXT
-	tmp_tc.c_cc[VLNEXT] = (cc_t)(_POSIX_VDISABLE);
-# endif
-#endif
-    }
-
-    if (f&MODE_SOFT_TAB) {
-#ifndef USE_TERMIO
-	sb.sg_flags |= XTABS;
-#else
-# ifdef	OXTABS
-	tmp_tc.c_oflag |= OXTABS;
-# endif
-# ifdef	TABDLY
-	tmp_tc.c_oflag &= ~TABDLY;
-	tmp_tc.c_oflag |= TAB3;
-# endif
-#endif
-    } else {
-#ifndef USE_TERMIO
-	sb.sg_flags &= ~XTABS;
-#else
-# ifdef	OXTABS
-	tmp_tc.c_oflag &= ~OXTABS;
-# endif
-# ifdef	TABDLY
-	tmp_tc.c_oflag &= ~TABDLY;
-# endif
-#endif
-    }
-
-    if (f&MODE_LIT_ECHO) {
-#ifndef USE_TERMIO
-	lmode &= ~LCTLECH;
-#else
-# ifdef	ECHOCTL
-	tmp_tc.c_lflag &= ~ECHOCTL;
-# endif
-#endif
-    } else {
-#ifndef USE_TERMIO
-	lmode |= LCTLECH;
-#else
-# ifdef	ECHOCTL
-	tmp_tc.c_lflag |= ECHOCTL;
-# endif
-#endif
-    }
-
-    if (f == -1) {
-	onoff = 0;
-    } else {
-#ifndef	USE_TERMIO
-	if (f & MODE_OUTBIN)
-		lmode |= LLITOUT;
-	else
-		lmode &= ~LLITOUT;
-
-	if (f & MODE_INBIN)
-		lmode |= LPASS8;
-	else
-		lmode &= ~LPASS8;
-#else
-	if (f & MODE_INBIN)
-		tmp_tc.c_iflag &= ~ISTRIP;
-	else
-		tmp_tc.c_iflag |= ISTRIP;
-	if (f & MODE_OUTBIN) {
-		tmp_tc.c_cflag &= ~(CSIZE|PARENB);
-		tmp_tc.c_cflag |= CS8;
-		tmp_tc.c_oflag &= ~OPOST;
-	} else {
-		tmp_tc.c_cflag &= ~(CSIZE|PARENB);
-		tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB);
-		tmp_tc.c_oflag |= OPOST;
-	}
-#endif
-	onoff = 1;
-    }
-
-    if (f != -1) {
-#ifdef  SIGINT
-	(void) signal(SIGINT, intr);
-#endif
-#ifdef  SIGQUIT
-	(void) signal(SIGQUIT, intr2);
-#endif
-#ifdef	SIGTSTP
-	(void) signal(SIGTSTP, susp);
-#endif	/* SIGTSTP */
-#ifdef	SIGINFO
-	(void) signal(SIGINFO, ayt);
-#endif
-#if	defined(USE_TERMIO) && defined(NOKERNINFO)
-	tmp_tc.c_lflag |= NOKERNINFO;
-#endif
-	/*
-	 * We don't want to process ^Y here.  It's just another
-	 * character that we'll pass on to the back end.  It has
-	 * to process it because it will be processed when the
-	 * user attempts to read it, not when we send it.
-	 */
-#ifndef	USE_TERMIO
-	ltc.t_dsuspc = _POSIX_VDISABLE;
-#else
-# ifdef	VDSUSP
-	tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE);
-# endif
-#endif
-#ifdef	USE_TERMIO
-	/*
-	 * If the VEOL character is already set, then use VEOL2,
-	 * otherwise use VEOL.
-	 */
-	esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape;
-	if ((tmp_tc.c_cc[VEOL] != esc)
-# ifdef	VEOL2
-	    && (tmp_tc.c_cc[VEOL2] != esc)
-# endif
-	    ) {
-		if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE))
-		    tmp_tc.c_cc[VEOL] = esc;
-# ifdef	VEOL2
-		else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE))
-		    tmp_tc.c_cc[VEOL2] = esc;
-# endif
-	}
-#else
-	if (tc.t_brkc == (cc_t)(_POSIX_VDISABLE))
-		tc.t_brkc = esc;
-#endif
-    } else {
-#ifdef	SIGINFO
-	(void) signal(SIGINFO, (void (*)(int))ayt_status);
-#endif
-#ifdef  SIGINT
-	(void) signal(SIGINT, SIG_DFL);
-#endif
-#ifdef  SIGQUIT
-	(void) signal(SIGQUIT, SIG_DFL);
-#endif
-#ifdef	SIGTSTP
-	(void) signal(SIGTSTP, SIG_DFL);
-# ifndef SOLARIS
-	(void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1)));
-# else	/* SOLARIS */
-	(void) sigrelse(SIGTSTP);
-# endif	/* SOLARIS */
-#endif	/* SIGTSTP */
-#ifndef USE_TERMIO
-	ltc = oltc;
-	tc = otc;
-	sb = ottyb;
-	lmode = olmode;
-#else
-	tmp_tc = old_tc;
-#endif
-    }
-#ifndef USE_TERMIO
-    ioctl(tin, TIOCLSET, (char *)&lmode);
-    ioctl(tin, TIOCSLTC, (char *)&ltc);
-    ioctl(tin, TIOCSETC, (char *)&tc);
-    ioctl(tin, TIOCSETN, (char *)&sb);
-#else
-    if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0)
-	tcsetattr(tin, TCSANOW, &tmp_tc);
-#endif
-
-    ioctl(tin, FIONBIO, (char *)&onoff);
-    ioctl(tout, FIONBIO, (char *)&onoff);
-
-}
-
-/*
- * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD).
- */
-#if B4800 != 4800
-#define	DECODE_BAUD
-#endif
-
-#ifdef	DECODE_BAUD
-#ifndef	B7200
-#define B7200   B4800
-#endif
-
-#ifndef	B14400
-#define B14400  B9600
-#endif
-
-#ifndef	B19200
-# define B19200 B14400
-#endif
-
-#ifndef	B28800
-#define B28800  B19200
-#endif
-
-#ifndef	B38400
-# define B38400 B28800
-#endif
-
-#ifndef B57600
-#define B57600  B38400
-#endif
-
-#ifndef B76800
-#define B76800  B57600
-#endif
-
-#ifndef B115200
-#define B115200 B76800
-#endif
-
-#ifndef B230400
-#define B230400 B115200
-#endif
-
-
-/*
- * This code assumes that the values B0, B50, B75...
- * are in ascending order.  They do not have to be
- * contiguous.
- */
-struct termspeeds {
-	long speed;
-	long value;
-} termspeeds[] = {
-	{ 0,      B0 },      { 50,    B50 },    { 75,     B75 },
-	{ 110,    B110 },    { 134,   B134 },   { 150,    B150 },
-	{ 200,    B200 },    { 300,   B300 },   { 600,    B600 },
-	{ 1200,   B1200 },   { 1800,  B1800 },  { 2400,   B2400 },
-	{ 4800,   B4800 },   { 7200,  B7200 },  { 9600,   B9600 },
-	{ 14400,  B14400 },  { 19200, B19200 }, { 28800,  B28800 },
-	{ 38400,  B38400 },  { 57600, B57600 }, { 115200, B115200 },
-	{ 230400, B230400 }, { -1,    B230400 }
-};
-#endif	/* DECODE_BAUD */
-
-void
-TerminalSpeeds(long *ispeed, long *ospeed)
-{
-#ifdef	DECODE_BAUD
-    struct termspeeds *tp;
-#endif	/* DECODE_BAUD */
-    long in, out;
-
-    out = cfgetospeed(&old_tc);
-    in = cfgetispeed(&old_tc);
-    if (in == 0)
-	in = out;
-
-#ifdef	DECODE_BAUD
-    tp = termspeeds;
-    while ((tp->speed != -1) && (tp->value < in))
-	tp++;
-    *ispeed = tp->speed;
-
-    tp = termspeeds;
-    while ((tp->speed != -1) && (tp->value < out))
-	tp++;
-    *ospeed = tp->speed;
-#else	/* DECODE_BAUD */
-	*ispeed = in;
-	*ospeed = out;
-#endif	/* DECODE_BAUD */
-}
-
-int
-TerminalWindowSize(long *rows, long *cols)
-{
-#ifdef	TIOCGWINSZ
-    struct winsize ws;
-
-    if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) {
-	*rows = ws.ws_row;
-	*cols = ws.ws_col;
-	return 1;
-    }
-#endif	/* TIOCGWINSZ */
-    return 0;
-}
-
-int
-NetClose(int fd)
-{
-    return close(fd);
-}
-
-static void
-NetNonblockingIO(int fd, int onoff)
-{
-    ioctl(fd, FIONBIO, (char *)&onoff);
-}
-
-
-/*
- * Various signal handling routines.
- */
-
-/* ARGSUSED */
-static SIG_FUNC_RET
-deadpeer(int sig __unused)
-{
-	setcommandmode();
-	longjmp(peerdied, -1);
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-intr(int sig __unused)
-{
-    if (localchars) {
-	intp();
-	return;
-    }
-    setcommandmode();
-    longjmp(toplevel, -1);
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-intr2(int sig __unused)
-{
-    if (localchars) {
-#ifdef	KLUDGELINEMODE
-	if (kludgelinemode)
-	    sendbrk();
-	else
-#endif
-	    sendabort();
-	return;
-    }
-}
-
-#ifdef	SIGTSTP
-/* ARGSUSED */
-SIG_FUNC_RET
-susp(int sig __unused)
-{
-    if ((rlogin != _POSIX_VDISABLE) && rlogin_susp())
-	return;
-    if (localchars)
-	sendsusp();
-}
-#endif
-
-#ifdef	SIGWINCH
-/* ARGSUSED */
-static SIG_FUNC_RET
-sendwin(int sig __unused)
-{
-    if (connected) {
-	sendnaws();
-    }
-}
-#endif
-
-#ifdef	SIGINFO
-/* ARGSUSED */
-SIG_FUNC_RET
-ayt(int sig __unused)
-{
-    if (connected)
-	sendayt();
-    else
-	ayt_status();
-}
-#endif
-
-
-void
-sys_telnet_init(void)
-{
-    (void) signal(SIGINT, intr);
-    (void) signal(SIGQUIT, intr2);
-    (void) signal(SIGPIPE, deadpeer);
-#ifdef	SIGWINCH
-    (void) signal(SIGWINCH, sendwin);
-#endif
-#ifdef	SIGTSTP
-    (void) signal(SIGTSTP, susp);
-#endif
-#ifdef	SIGINFO
-    (void) signal(SIGINFO, ayt);
-#endif
-
-    setconnmode(0);
-
-    NetNonblockingIO(net, 1);
-
-#if	defined(SO_OOBINLINE)
-    if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) {
-	perror("SetSockOpt");
-    }
-#endif	/* defined(SO_OOBINLINE) */
-}
-
-/*
- * Process rings -
- *
- *	This routine tries to fill up/empty our various rings.
- *
- *	The parameter specifies whether this is a poll operation,
- *	or a block-until-something-happens operation.
- *
- *	The return value is 1 if something happened, 0 if not.
- */
-
-int
-process_rings(int netin, int netout, int netex, int ttyin, int ttyout, int poll)
-{
-    int c;
-    int returnValue = 0;
-    static struct timeval TimeValue = { 0, 0 };
-    int maxfd = -1;
-    int tmp;
-
-    if ((netout || netin || netex) && net > maxfd)
-	maxfd = net;
-    
-    if (ttyout && tout > maxfd)
-	maxfd = tout;
-    if (ttyin && tin > maxfd)
-	maxfd = tin;
-    tmp = howmany(maxfd+1, NFDBITS) * sizeof(fd_mask);
-    if (tmp > fdsn) {
-	if (ibitsp)
-	    free(ibitsp);
-	if (obitsp)
-	    free(obitsp);
-	if (xbitsp)
-	    free(xbitsp);
-	
-	fdsn = tmp;
-	if ((ibitsp = (fd_set *)malloc(fdsn)) == NULL)
-	    err(1, "malloc");
-	if ((obitsp = (fd_set *)malloc(fdsn)) == NULL)
-	    err(1, "malloc");
-	if ((xbitsp = (fd_set *)malloc(fdsn)) == NULL)
-	    err(1, "malloc");
-	memset(ibitsp, 0, fdsn);
-	memset(obitsp, 0, fdsn);
-	memset(xbitsp, 0, fdsn);
-    }
-    
-    if (netout)
-	FD_SET(net, obitsp);
-    if (ttyout)
-	FD_SET(tout, obitsp);
-    if (ttyin)
-	FD_SET(tin, ibitsp);
-    if (netin)
-	FD_SET(net, ibitsp);
-    if (netex)
-	FD_SET(net, xbitsp);
-    if ((c = select(maxfd + 1, ibitsp, obitsp, xbitsp,
-	     (poll == 0)? (struct timeval *)0 : &TimeValue)) < 0) {
-	if (c == -1) {
-		    /*
-		     * we can get EINTR if we are in line mode,
-		     * and the user does an escape (TSTP), or
-		     * some other signal generator.
-		     */
-	    if (errno == EINTR) {
-		return 0;
-	    }
-		    /* I don't like this, does it ever happen? */
-	    printf("sleep(5) from telnet, after select: %s\r\n", strerror(errno));
-	    sleep(5);
-	}
-	return 0;
-    }
-
-    /*
-     * Any urgent data?
-     */
-    if (FD_ISSET(net, xbitsp)) {
-	FD_CLR(net, xbitsp);
-	SYNCHing = 1;
-	(void) ttyflush(1);	/* flush already enqueued data */
-    }
-
-    /*
-     * Something to read from the network...
-     */
-    if (FD_ISSET(net, ibitsp)) {
-	int canread;
-
-	FD_CLR(net, ibitsp);
-	canread = ring_empty_consecutive(&netiring);
-#if	!defined(SO_OOBINLINE)
-	    /*
-	     * In 4.2 (and some early 4.3) systems, the
-	     * OOB indication and data handling in the kernel
-	     * is such that if two separate TCP Urgent requests
-	     * come in, one byte of TCP data will be overlaid.
-	     * This is fatal for Telnet, but we try to live
-	     * with it.
-	     *
-	     * In addition, in 4.2 (and...), a special protocol
-	     * is needed to pick up the TCP Urgent data in
-	     * the correct sequence.
-	     *
-	     * What we do is:  if we think we are in urgent
-	     * mode, we look to see if we are "at the mark".
-	     * If we are, we do an OOB receive.  If we run
-	     * this twice, we will do the OOB receive twice,
-	     * but the second will fail, since the second
-	     * time we were "at the mark", but there wasn't
-	     * any data there (the kernel doesn't reset
-	     * "at the mark" until we do a normal read).
-	     * Once we've read the OOB data, we go ahead
-	     * and do normal reads.
-	     *
-	     * There is also another problem, which is that
-	     * since the OOB byte we read doesn't put us
-	     * out of OOB state, and since that byte is most
-	     * likely the TELNET DM (data mark), we would
-	     * stay in the TELNET SYNCH (SYNCHing) state.
-	     * So, clocks to the rescue.  If we've "just"
-	     * received a DM, then we test for the
-	     * presence of OOB data when the receive OOB
-	     * fails (and AFTER we did the normal mode read
-	     * to clear "at the mark").
-	     */
-	if (SYNCHing) {
-	    int atmark;
-	    static int bogus_oob = 0, first = 1;
-
-	    ioctl(net, SIOCATMARK, (char *)&atmark);
-	    if (atmark) {
-		c = recv(net, netiring.supply, canread, MSG_OOB);
-		if ((c == -1) && (errno == EINVAL)) {
-		    c = recv(net, netiring.supply, canread, 0);
-		    if (clocks.didnetreceive < clocks.gotDM) {
-			SYNCHing = stilloob(net);
-		    }
-		} else if (first && c > 0) {
-		    /*
-		     * Bogosity check.  Systems based on 4.2BSD
-		     * do not return an error if you do a second
-		     * recv(MSG_OOB).  So, we do one.  If it
-		     * succeeds and returns exactly the same
-		     * data, then assume that we are running
-		     * on a broken system and set the bogus_oob
-		     * flag.  (If the data was different, then
-		     * we probably got some valid new data, so
-		     * increment the count...)
-		     */
-		    int i;
-		    i = recv(net, netiring.supply + c, canread - c, MSG_OOB);
-		    if (i == c &&
-			memcmp(netiring.supply, netiring.supply + c, i) == 0) {
-			bogus_oob = 1;
-			first = 0;
-		    } else if (i < 0) {
-			bogus_oob = 0;
-			first = 0;
-		    } else
-			c += i;
-		}
-		if (bogus_oob && c > 0) {
-		    int i;
-		    /*
-		     * Bogosity.  We have to do the read
-		     * to clear the atmark to get out of
-		     * an infinate loop.
-		     */
-		    i = read(net, netiring.supply + c, canread - c);
-		    if (i > 0)
-			c += i;
-		}
-	    } else {
-		c = recv(net, netiring.supply, canread, 0);
-	    }
-	} else {
-	    c = recv(net, netiring.supply, canread, 0);
-	}
-	settimer(didnetreceive);
-#else	/* !defined(SO_OOBINLINE) */
-	c = recv(net, (char *)netiring.supply, canread, 0);
-#endif	/* !defined(SO_OOBINLINE) */
-	if (c < 0 && errno == EWOULDBLOCK) {
-	    c = 0;
-	} else if (c <= 0) {
-	    return -1;
-	}
-	if (netdata) {
-	    Dump('<', netiring.supply, c);
-	}
-	if (c)
-	    ring_supplied(&netiring, c);
-	returnValue = 1;
-    }
-
-    /*
-     * Something to read from the tty...
-     */
-    if (FD_ISSET(tin, ibitsp)) {
-	FD_CLR(tin, ibitsp);
-	c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring));
-	if (c < 0 && errno == EIO)
-	    c = 0;
-	if (c < 0 && errno == EWOULDBLOCK) {
-	    c = 0;
-	} else {
-	    /* EOF detection for line mode!!!! */
-	    if ((c == 0) && MODE_LOCAL_CHARS(globalmode) && isatty(tin)) {
-			/* must be an EOF... */
-		*ttyiring.supply = termEofChar;
-		c = 1;
-	    }
-	    if (c <= 0) {
-		return -1;
-	    }
-	    if (termdata) {
-		Dump('<', ttyiring.supply, c);
-	    }
-	    ring_supplied(&ttyiring, c);
-	}
-	returnValue = 1;		/* did something useful */
-    }
-
-    if (FD_ISSET(net, obitsp)) {
-	FD_CLR(net, obitsp);
-	returnValue |= netflush();
-    }
-    if (FD_ISSET(tout, obitsp)) {
-	FD_CLR(tout, obitsp);
-	returnValue |= (ttyflush(SYNCHing|flushout) > 0);
-    }
-
-    return returnValue;
-}
diff --git a/crypto/telnet/telnet/telnet.1 b/crypto/telnet/telnet/telnet.1
deleted file mode 100644
index 2bbc0b77ff33..000000000000
--- a/crypto/telnet/telnet/telnet.1
+++ /dev/null
@@ -1,1424 +0,0 @@
-.\" Copyright (c) 1983, 1990, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)telnet.1	8.6 (Berkeley) 6/1/94
-.\" $FreeBSD$
-.\"
-.Dd January 27, 2000
-.Dt TELNET 1
-.Os
-.Sh NAME
-.Nm telnet
-.Nd user interface to the
-.Tn TELNET
-protocol
-.Sh SYNOPSIS
-.Nm
-.Op Fl 468EFKLNacdfruxy
-.Op Fl S Ar tos
-.Op Fl X Ar authtype
-.Op Fl e Ar escapechar
-.Op Fl k Ar realm
-.Op Fl l Ar user
-.Op Fl n Ar tracefile
-.Op Fl s Ar src_addr
-.Oo
-.Ar host
-.Op Ar port
-.Oc
-.Sh DESCRIPTION
-The
-.Nm
-command
-is used to communicate with another host using the
-.Tn TELNET
-protocol.
-If
-.Nm
-is invoked without the
-.Ar host
-argument, it enters command mode,
-indicated by its prompt
-.Pq Dq Li telnet\&> .
-In this mode, it accepts and executes the commands listed below.
-If it is invoked with arguments, it performs an
-.Ic open
-command with those arguments.
-.Pp
-Options:
-.Bl -tag -width indent
-.It Fl 4
-Forces
-.Nm
-to use IPv4 addresses only.
-.It Fl 6
-Forces
-.Nm
-to use IPv6 addresses only.
-.It Fl 8
-Specifies an 8-bit data path.  This causes an attempt to
-negotiate the
-.Dv TELNET BINARY
-option on both input and output.
-.It Fl E
-Stops any character from being recognized as an escape character.
-.It Fl F
-If Kerberos V5 authentication is being used, the
-.Fl F
-option allows the local credentials to be forwarded
-to the remote system, including any credentials that
-have already been forwarded into the local environment.
-.It Fl K
-Specifies no automatic login to the remote system.
-.It Fl L
-Specifies an 8-bit data path on output.  This causes the
-.Dv BINARY
-option to be negotiated on output.
-.It Fl N
-Prevents IP address to name lookup when destination host is given
-as an IP address.
-.It Fl S Ar tos
-Sets the IP type-of-service (TOS) option for the telnet
-connection to the value
-.Ar tos ,
-which can be a numeric TOS value
-or, on systems that support it, a symbolic
-TOS name found in the
-.Pa /etc/iptos
-file.
-.It Fl X Ar atype
-Disables the
-.Ar atype
-type of authentication.
-.It Fl a
-Attempt automatic login.
-This is now the default, so this option is ignored.
-Currently, this sends the user name via the
-.Ev USER
-variable
-of the
-.Ev ENVIRON
-option if supported by the remote system.
-The name used is that of the current user as returned by
-.Xr getlogin 2
-if it agrees with the current user ID,
-otherwise it is the name associated with the user ID.
-.It Fl c
-Disables the reading of the user's
-.Pa \&.telnetrc
-file.  (See the
-.Ic toggle skiprc
-command on this man page.)
-.It Fl d
-Sets the initial value of the
-.Ic debug
-toggle to
-.Dv TRUE .
-.It Fl e Ar escapechar
-Sets the initial
-.Nm
-escape character to
-.Ar escapechar .
-If
-.Ar escapechar
-is omitted, then
-there will be no escape character.
-.It Fl f
-If Kerberos V5 authentication is being used, the
-.Fl f
-option allows the local credentials to be forwarded to the remote system.
-.It Fl k Ar realm
-If Kerberos authentication is being used, the
-.Fl k
-option requests that
-.Nm
-obtain tickets for the remote host in
-realm
-.Ar realm
-instead of the remote host's realm, as determined by
-.Xr krb_realmofhost 3 .
-.It Fl l Ar user
-When connecting to the remote system, if the remote system
-understands the
-.Ev ENVIRON
-option, then
-.Ar user
-will be sent to the remote system as the value for the variable
-.Ev USER .
-This option implies the
-.Fl a
-option.
-This option may also be used with the
-.Ic open
-command.
-.It Fl n Ar tracefile
-Opens
-.Ar tracefile
-for recording trace information.
-See the
-.Ic set tracefile
-command below.
-.It Fl r
-Specifies a user interface similar to
-.Xr rlogin 1 .
-In this
-mode, the escape character is set to the tilde (~) character,
-unless modified by the
-.Fl e
-option.
-.It Fl s Ar src_addr
-Set the source IP address for the
-.Nm
-connection to
-.Ar src_addr ,
-which can be an IP address or a host name.
-.It Fl u
-Forces
-.Nm
-to use
-.Dv AF_UNIX
-addresses only (e.g.,
-.Ux
-domain sockets, accessed with a file path).
-.It Fl x
-Turns on encryption of the data stream if possible.
-This is now the default, so this option is ignored.
-.It Fl y
-Suppresses encryption of the data stream.
-.It Ar host
-Indicates the official name, an alias, or the Internet address
-of a remote host.
-If
-.Ar host
-starts with a
-.Ql / ,
-.Nm
-establishes a connection to the corresponding named socket.
-.It Ar port
-Indicates a port number (address of an application).  If a number is
-not specified, the default
-.Nm
-port is used.
-.El
-.Pp
-When in rlogin mode, a line of the form ~.  disconnects from the
-remote host; ~ is the
-.Nm
-escape character.
-Similarly, the line ~^Z suspends the
-.Nm
-session.
-The line ~^] escapes to the normal
-.Nm
-escape prompt.
-.Pp
-Once a connection has been opened,
-.Nm
-will attempt to enable the
-.Dv TELNET LINEMODE
-option.
-If this fails, then
-.Nm
-will revert to one of two input modes:
-either \*(Lqcharacter at a time\*(Rq
-or \*(Lqold line by line\*(Rq
-depending on what the remote system supports.
-.Pp
-When
-.Dv LINEMODE
-is enabled, character processing is done on the
-local system, under the control of the remote system.  When input
-editing or character echoing is to be disabled, the remote system
-will relay that information.  The remote system will also relay
-changes to any special characters that happen on the remote
-system, so that they can take effect on the local system.
-.Pp
-In \*(Lqcharacter at a time\*(Rq mode, most
-text typed is immediately sent to the remote host for processing.
-.Pp
-In \*(Lqold line by line\*(Rq mode, all text is echoed locally,
-and (normally) only completed lines are sent to the remote host.
-The \*(Lqlocal echo character\*(Rq (initially \*(Lq^E\*(Rq) may be used
-to turn off and on the local echo
-(this would mostly be used to enter passwords
-without the password being echoed).
-.Pp
-If the
-.Dv LINEMODE
-option is enabled, or if the
-.Ic localchars
-toggle is
-.Dv TRUE
-(the default for \*(Lqold line by line\*(Rq; see below),
-the user's
-.Ic quit  ,
-.Ic intr ,
-and
-.Ic flush
-characters are trapped locally, and sent as
-.Tn TELNET
-protocol sequences to the remote side.
-If
-.Dv LINEMODE
-has ever been enabled, then the user's
-.Ic susp
-and
-.Ic eof
-are also sent as
-.Tn TELNET
-protocol sequences,
-and
-.Ic quit
-is sent as a
-.Dv TELNET ABORT
-instead of
-.Dv BREAK .
-There are options (see
-.Ic toggle
-.Ic autoflush
-and
-.Ic toggle
-.Ic autosynch
-below)
-which cause this action to flush subsequent output to the terminal
-(until the remote host acknowledges the
-.Tn TELNET
-sequence) and flush previous terminal input
-(in the case of
-.Ic quit
-and
-.Ic intr  ) .
-.Pp
-While connected to a remote host,
-.Nm
-command mode may be entered by typing the
-.Nm
-\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq).
-When in command mode, the normal terminal editing conventions are available.
-.Pp
-The following
-.Nm
-commands are available.
-Only enough of each command to uniquely identify it need be typed
-(this is also true for arguments to the
-.Ic mode  ,
-.Ic set ,
-.Ic toggle  ,
-.Ic unset ,
-.Ic slc  ,
-.Ic environ ,
-and
-.Ic display
-commands).
-.Pp
-.Bl -tag -width "mode type"
-.It Ic auth Ar argument ...
-The auth command manipulates the information sent through the
-.Dv TELNET AUTHENTICATE
-option.  Valid arguments for the
-.Ic auth
-command are:
-.Bl -tag -width "disable type"
-.It Ic disable Ar type
-Disables the specified type of authentication.  To
-obtain a list of available types, use the
-.Ic auth disable ?\&
-command.
-.It Ic enable Ar type
-Enables the specified type of authentication.  To
-obtain a list of available types, use the
-.Ic auth enable ?\&
-command.
-.It Ic status
-Lists the current status of the various types of
-authentication.
-.El
-.It Ic close
-Close a
-.Tn TELNET
-session and return to command mode.
-.It Ic display Ar argument ...
-Displays all, or some, of the
-.Ic set
-and
-.Ic toggle
-values (see below).
-.It Ic encrypt Ar argument ...
-The encrypt command manipulates the information sent through the
-.Dv TELNET ENCRYPT
-option.
-.Pp
-Valid arguments for the
-.Ic encrypt
-command are:
-.Bl -tag -width Ar
-.It Ic disable Ar type Xo
-.Op Cm input | output
-.Xc
-Disables the specified type of encryption.  If you
-omit the input and output, both input and output
-are disabled.  To obtain a list of available
-types, use the
-.Ic encrypt disable ?\&
-command.
-.It Ic enable Ar type Xo
-.Op Cm input | output
-.Xc
-Enables the specified type of encryption.  If you
-omit input and output, both input and output are
-enabled.  To obtain a list of available types, use the
-.Ic encrypt enable ?\&
-command.
-.It Ic input
-This is the same as the
-.Ic encrypt start input
-command.
-.It Ic -input
-This is the same as the
-.Ic encrypt stop input
-command.
-.It Ic output
-This is the same as the
-.Ic encrypt start output
-command.
-.It Ic -output
-This is the same as the
-.Ic encrypt stop output
-command.
-.It Ic start Op Cm input | output
-Attempts to start encryption.  If you omit
-.Ic input
-and
-.Ic output ,
-both input and output are enabled.  To
-obtain a list of available types, use the
-.Ic encrypt enable ?\&
-command.
-.It Ic status
-Lists the current status of encryption.
-.It Ic stop Op Cm input | output
-Stops encryption.  If you omit input and output,
-encryption is on both input and output.
-.It Ic type Ar type
-Sets the default type of encryption to be used
-with later
-.Ic encrypt start
-or
-.Ic encrypt stop
-commands.
-.El
-.It Ic environ Ar arguments ...
-The
-.Ic environ
-command is used to manipulate the
-variables that may be sent through the
-.Dv TELNET ENVIRON
-option.
-The initial set of variables is taken from the users
-environment, with only the
-.Ev DISPLAY
-and
-.Ev PRINTER
-variables being exported by default.
-The
-.Ev USER
-variable is also exported if the
-.Fl a
-or
-.Fl l
-options are used.
-.Pp
-Valid arguments for the
-.Ic environ
-command are:
-.Bl -tag -width Fl
-.It Ic define Ar variable value
-Define the variable
-.Ar variable
-to have a value of
-.Ar value .
-Any variables defined by this command are automatically exported.
-The
-.Ar value
-may be enclosed in single or double quotes so
-that tabs and spaces may be included.
-.It Ic undefine Ar variable
-Remove
-.Ar variable
-from the list of environment variables.
-.It Ic export Ar variable
-Mark the variable
-.Ar variable
-to be exported to the remote side.
-.It Ic unexport Ar variable
-Mark the variable
-.Ar variable
-to not be exported unless
-explicitly asked for by the remote side.
-.It Ic list
-List the current set of environment variables.
-Those marked with a
-.Cm *
-will be sent automatically,
-other variables will only be sent if explicitly requested.
-.It Ic ?\&
-Prints out help information for the
-.Ic environ
-command.
-.El
-.It Ic logout
-Sends the
-.Dv TELNET LOGOUT
-option to the remote side.
-This command is similar to a
-.Ic close
-command; however, if the remote side does not support the
-.Dv LOGOUT
-option, nothing happens.
-If, however, the remote side does support the
-.Dv LOGOUT
-option, this command should cause the remote side to close the
-.Tn TELNET
-connection.
-If the remote side also supports the concept of
-suspending a user's session for later reattachment,
-the logout argument indicates that you
-should terminate the session immediately.
-.It Ic mode Ar type
-.Ar Type
-is one of several options, depending on the state of the
-.Tn TELNET
-session.
-The remote host is asked for permission to go into the requested mode.
-If the remote host is capable of entering that mode, the requested
-mode will be entered.
-.Bl -tag -width Ar
-.It Ic character
-Disable the
-.Dv TELNET LINEMODE
-option, or, if the remote side does not understand the
-.Dv LINEMODE
-option, then enter \*(Lqcharacter at a time\*(Rq mode.
-.It Ic line
-Enable the
-.Dv TELNET LINEMODE
-option, or, if the remote side does not understand the
-.Dv LINEMODE
-option, then attempt to enter \*(Lqold-line-by-line\*(Rq mode.
-.It Ic isig Pq Ic \-isig
-Attempt to enable (disable) the
-.Dv TRAPSIG
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic edit Pq Ic \-edit
-Attempt to enable (disable) the
-.Dv EDIT
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic softtabs Pq Ic \-softtabs
-Attempt to enable (disable) the
-.Dv SOFT_TAB
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic litecho Pq Ic \-litecho
-Attempt to enable (disable) the
-.Dv LIT_ECHO
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic ?\&
-Prints out help information for the
-.Ic mode
-command.
-.El
-.It Xo
-.Ic open Ar host
-.Op Fl l Ar user
-.Op Oo Fl Oc Ns Ar port
-.Xc
-Open a connection to the named host.
-If no port number
-is specified,
-.Nm
-will attempt to contact a
-.Tn TELNET
-server at the default port.
-The host specification may be either a host name (see
-.Xr hosts  5  ) ,
-an Internet address specified in the \*(Lqdot notation\*(Rq (see
-.Xr inet 3 ) ,
-or IPv6 host name or IPv6 coloned-hexadecimal addreess.
-The
-.Fl l
-option may be used to specify the user name
-to be passed to the remote system via the
-.Ev ENVIRON
-option.
-When connecting to a non-standard port,
-.Nm
-omits any automatic initiation of
-.Tn TELNET
-options.  When the port number is preceded by a minus sign,
-the initial option negotiation is done.
-After establishing a connection, the file
-.Pa \&.telnetrc
-in the
-users home directory is opened.  Lines beginning with a # are
-comment lines.  Blank lines are ignored.  Lines that begin
-without white space are the start of a machine entry.  The
-first thing on the line is the name of the machine that is
-being connected to.  The rest of the line, and successive
-lines that begin with white space are assumed to be
-.Nm
-commands and are processed as if they had been typed
-in manually to the
-.Nm
-command prompt.
-.It Ic quit
-Close any open
-.Tn TELNET
-session and exit
-.Nm .
-An end of file (in command mode) will also close a session and exit.
-.It Ic send Ar arguments
-Sends one or more special character sequences to the remote host.
-The following are the arguments which may be specified
-(more than one argument may be specified at a time):
-.Pp
-.Bl -tag -width escape
-.It Ic abort
-Sends the
-.Dv TELNET ABORT
-(Abort
-processes)
-sequence.
-.It Ic ao
-Sends the
-.Dv TELNET AO
-(Abort Output) sequence, which should cause the remote system to flush
-all output
-.Em from
-the remote system
-.Em to
-the user's terminal.
-.It Ic ayt
-Sends the
-.Dv TELNET AYT
-(Are You There)
-sequence, to which the remote system may or may not choose to respond.
-.It Ic brk
-Sends the
-.Dv TELNET BRK
-(Break) sequence, which may have significance to the remote
-system.
-.It Ic ec
-Sends the
-.Dv TELNET EC
-(Erase Character)
-sequence, which should cause the remote system to erase the last character
-entered.
-.It Ic el
-Sends the
-.Dv TELNET EL
-(Erase Line)
-sequence, which should cause the remote system to erase the line currently
-being entered.
-.It Ic eof
-Sends the
-.Dv TELNET EOF
-(End Of File)
-sequence.
-.It Ic eor
-Sends the
-.Dv TELNET EOR
-(End of Record)
-sequence.
-.It Ic escape
-Sends the current
-.Nm
-escape character (initially \*(Lq^\*(Rq).
-.It Ic ga
-Sends the
-.Dv TELNET GA
-(Go Ahead)
-sequence, which likely has no significance to the remote system.
-.It Ic getstatus
-If the remote side supports the
-.Dv TELNET STATUS
-command,
-.Ic getstatus
-will send the subnegotiation to request that the server send
-its current option status.
-.It Ic ip
-Sends the
-.Dv TELNET IP
-(Interrupt Process) sequence, which should cause the remote
-system to abort the currently running process.
-.It Ic nop
-Sends the
-.Dv TELNET NOP
-(No OPeration)
-sequence.
-.It Ic susp
-Sends the
-.Dv TELNET SUSP
-(SUSPend process)
-sequence.
-.It Ic synch
-Sends the
-.Dv TELNET SYNCH
-sequence.
-This sequence causes the remote system to discard all previously typed
-(but not yet read) input.
-This sequence is sent as
-.Tn TCP
-urgent
-data (and may not work if the remote system is a
-.Bx 4.2
-system -- if
-it doesn't work, a lower case \*(Lqr\*(Rq may be echoed on the terminal).
-.It Ic do Ar cmd
-.It Ic dont Ar cmd
-.It Ic will Ar cmd
-.It Ic wont Ar cmd
-Sends the
-.Dv TELNET DO
-.Ar cmd
-sequence.
-.Ar Cmd
-can be either a decimal number between 0 and 255,
-or a symbolic name for a specific
-.Dv TELNET
-command.
-.Ar Cmd
-can also be either
-.Ic help
-or
-.Ic ?\&
-to print out help information, including
-a list of known symbolic names.
-.It Ic ?\&
-Prints out help information for the
-.Ic send
-command.
-.El
-.It Ic set Ar argument value
-.It Ic unset Ar argument value
-The
-.Ic set
-command will set any one of a number of
-.Nm
-variables to a specific value or to
-.Dv TRUE .
-The special value
-.Ic off
-turns off the function associated with
-the variable, this is equivalent to using the
-.Ic unset
-command.
-The
-.Ic unset
-command will disable or set to
-.Dv FALSE
-any of the specified functions.
-The values of variables may be interrogated with the
-.Ic display
-command.
-The variables which may be set or unset, but not toggled, are
-listed here.  In addition, any of the variables for the
-.Ic toggle
-command may be explicitly set or unset using
-the
-.Ic set
-and
-.Ic unset
-commands.
-.Bl -tag -width escape
-.It Ic ayt
-If
-.Tn TELNET
-is in localchars mode, or
-.Dv LINEMODE
-is enabled, and the status character is typed, a
-.Dv TELNET AYT
-sequence (see
-.Ic send ayt
-preceding) is sent to the
-remote host.  The initial value for the \*(LqAre You There\*(Rq
-character is the terminal's status character.
-.It Ic echo
-This is the value (initially \*(Lq^E\*(Rq) which, when in
-\*(Lqline by line\*(Rq mode, toggles between doing local echoing
-of entered characters (for normal processing), and suppressing
-echoing of entered characters (for entering, say, a password).
-.It Ic eof
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, entering this character
-as the first character on a line will cause this character to be
-sent to the remote system.
-The initial value of the eof character is taken to be the terminal's
-.Ic eof
-character.
-.It Ic erase
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below),
-.Sy and
-if
-.Nm
-is operating in \*(Lqcharacter at a time\*(Rq mode, then when this
-character is typed, a
-.Dv TELNET EC
-sequence (see
-.Ic send
-.Ic ec
-above)
-is sent to the remote system.
-The initial value for the erase character is taken to be
-the terminal's
-.Ic erase
-character.
-.It Ic escape
-This is the
-.Nm
-escape character (initially \*(Lq^[\*(Rq) which causes entry
-into
-.Nm
-command mode (when connected to a remote system).
-.It Ic flushoutput
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below)
-and the
-.Ic flushoutput
-character is typed, a
-.Dv TELNET AO
-sequence (see
-.Ic send
-.Ic ao
-above)
-is sent to the remote host.
-The initial value for the flush character is taken to be
-the terminal's
-.Ic flush
-character.
-.It Ic forw1
-.It Ic forw2
-If
-.Nm
-is operating in
-.Dv LINEMODE ,
-these are the
-characters that, when typed, cause partial lines to be
-forwarded to the remote system.  The initial value for
-the forwarding characters are taken from the terminal's
-eol and eol2 characters.
-.It Ic interrupt
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below)
-and the
-.Ic interrupt
-character is typed, a
-.Dv TELNET IP
-sequence (see
-.Ic send
-.Ic ip
-above)
-is sent to the remote host.
-The initial value for the interrupt character is taken to be
-the terminal's
-.Ic intr
-character.
-.It Ic kill
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below),
-.Ic and
-if
-.Nm
-is operating in \*(Lqcharacter at a time\*(Rq mode, then when this
-character is typed, a
-.Dv TELNET EL
-sequence (see
-.Ic send
-.Ic el
-above)
-is sent to the remote system.
-The initial value for the kill character is taken to be
-the terminal's
-.Ic kill
-character.
-.It Ic lnext
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, then this character is taken to
-be the terminal's
-.Ic lnext
-character.
-The initial value for the lnext character is taken to be
-the terminal's
-.Ic lnext
-character.
-.It Ic quit
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below)
-and the
-.Ic quit
-character is typed, a
-.Dv TELNET BRK
-sequence (see
-.Ic send
-.Ic brk
-above)
-is sent to the remote host.
-The initial value for the quit character is taken to be
-the terminal's
-.Ic quit
-character.
-.It Ic reprint
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, then this character is taken to
-be the terminal's
-.Ic reprint
-character.
-The initial value for the reprint character is taken to be
-the terminal's
-.Ic reprint
-character.
-.It Ic rlogin
-This is the rlogin escape character.
-If set, the normal
-.Nm
-escape character is ignored unless it is
-preceded by this character at the beginning of a line.
-This character, at the beginning of a line followed by
-a "."  closes the connection; when followed by a ^Z it
-suspends the
-.Nm
-command.  The initial state is to
-disable the
-.Nm rlogin
-escape character.
-.It Ic start
-If the
-.Dv TELNET TOGGLE-FLOW-CONTROL
-option has been enabled,
-then this character is taken to
-be the terminal's
-.Ic start
-character.
-The initial value for the start character is taken to be
-the terminal's
-.Ic start
-character.
-.It Ic stop
-If the
-.Dv TELNET TOGGLE-FLOW-CONTROL
-option has been enabled,
-then this character is taken to
-be the terminal's
-.Ic stop
-character.
-The initial value for the stop character is taken to be
-the terminal's
-.Ic stop
-character.
-.It Ic susp
-If
-.Nm
-is in
-.Ic localchars
-mode, or
-.Dv LINEMODE
-is enabled, and the
-.Ic suspend
-character is typed, a
-.Dv TELNET SUSP
-sequence (see
-.Ic send
-.Ic susp
-above)
-is sent to the remote host.
-The initial value for the suspend character is taken to be
-the terminal's
-.Ic suspend
-character.
-.It Ic tracefile
-This is the file to which the output, caused by
-.Ic netdata
-or
-.Ic option
-tracing being
-.Dv TRUE ,
-will be written.  If it is set to
-.Dq Fl ,
-then tracing information will be written to standard output (the default).
-.It Ic worderase
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, then this character is taken to
-be the terminal's
-.Ic worderase
-character.
-The initial value for the worderase character is taken to be
-the terminal's
-.Ic worderase
-character.
-.It Ic ?\&
-Displays the legal
-.Ic set
-.Pq Ic unset
-commands.
-.El
-.It Ic opie Ar sequence challenge
-The
-.Ic opie
-command computes a response to the OPIE challenge.
-.It Ic slc Ar state
-The
-.Ic slc
-command (Set Local Characters) is used to set
-or change the state of the special
-characters when the
-.Dv TELNET LINEMODE
-option has
-been enabled.  Special characters are characters that get
-mapped to
-.Tn TELNET
-commands sequences (like
-.Ic ip
-or
-.Ic quit  )
-or line editing characters (like
-.Ic erase
-and
-.Ic kill  ) .
-By default, the local special characters are exported.
-.Bl -tag -width Fl
-.It Ic check
-Verify the current settings for the current special characters.
-The remote side is requested to send all the current special
-character settings, and if there are any discrepancies with
-the local side, the local side will switch to the remote value.
-.It Ic export
-Switch to the local defaults for the special characters.  The
-local default characters are those of the local terminal at
-the time when
-.Nm
-was started.
-.It Ic import
-Switch to the remote defaults for the special characters.
-The remote default characters are those of the remote system
-at the time when the
-.Tn TELNET
-connection was established.
-.It Ic ?\&
-Prints out help information for the
-.Ic slc
-command.
-.El
-.It Ic status
-Show the current status of
-.Nm .
-This includes the peer one is connected to, as well
-as the current mode.
-.It Ic toggle Ar arguments ...
-Toggle (between
-.Dv TRUE
-and
-.Dv FALSE )
-various flags that control how
-.Nm
-responds to events.
-These flags may be set explicitly to
-.Dv TRUE
-or
-.Dv FALSE
-using the
-.Ic set
-and
-.Ic unset
-commands listed above.
-More than one argument may be specified.
-The state of these flags may be interrogated with the
-.Ic display
-command.
-Valid arguments are:
-.Bl -tag -width Ar
-.It Ic authdebug
-Turns on debugging information for the authentication code.
-.It Ic autoflush
-If
-.Ic autoflush
-and
-.Ic localchars
-are both
-.Dv TRUE ,
-then when the
-.Ic ao  ,
-or
-.Ic quit
-characters are recognized (and transformed into
-.Tn TELNET
-sequences; see
-.Ic set
-above for details),
-.Nm
-refuses to display any data on the user's terminal
-until the remote system acknowledges (via a
-.Dv TELNET TIMING MARK
-option)
-that it has processed those
-.Tn TELNET
-sequences.
-The initial value for this toggle is
-.Dv TRUE
-if the terminal user had not
-done an "stty noflsh", otherwise
-.Dv FALSE
-(see
-.Xr stty  1  ) .
-.It Ic autodecrypt
-When the
-.Dv TELNET ENCRYPT
-option is negotiated, by
-default the actual encryption (decryption) of the data
-stream does not start automatically.  The autoencrypt
-(autodecrypt) command states that encryption of the
-output (input) stream should be enabled as soon as
-possible.
-.It Ic autologin
-If the remote side supports the
-.Dv TELNET AUTHENTICATION
-option
-.Nm
-attempts to use it to perform automatic authentication.  If the
-.Dv AUTHENTICATION
-option is not supported, the user's login
-name are propagated through the
-.Dv TELNET ENVIRON
-option.
-This command is the same as specifying
-.Fl a
-option on the
-.Ic open
-command.
-.It Ic autosynch
-If
-.Ic autosynch
-and
-.Ic localchars
-are both
-.Dv TRUE ,
-then when either the
-.Ic intr
-or
-.Ic quit
-characters is typed (see
-.Ic set
-above for descriptions of the
-.Ic intr
-and
-.Ic quit
-characters), the resulting
-.Tn TELNET
-sequence sent is followed by the
-.Dv TELNET SYNCH
-sequence.
-This procedure
-.Ic should
-cause the remote system to begin throwing away all previously
-typed input until both of the
-.Tn TELNET
-sequences have been read and acted upon.
-The initial value of this toggle is
-.Dv FALSE .
-.It Ic binary
-Enable or disable the
-.Dv TELNET BINARY
-option on both input and output.
-.It Ic inbinary
-Enable or disable the
-.Dv TELNET BINARY
-option on input.
-.It Ic outbinary
-Enable or disable the
-.Dv TELNET BINARY
-option on output.
-.It Ic crlf
-If this is
-.Dv TRUE ,
-then carriage returns will be sent as
-.Li <CR><LF> .
-If this is
-.Dv FALSE ,
-then carriage returns will be send as
-.Li <CR><NUL> .
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic crmod
-Toggle carriage return mode.
-When this mode is enabled, most carriage return characters received from
-the remote host will be mapped into a carriage return followed by
-a line feed.
-This mode does not affect those characters typed by the user, only
-those received from the remote host.
-This mode is not very useful unless the remote host
-only sends carriage return, but never line feed.
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic debug
-Toggles socket level debugging (useful only to the
-.Ic super user  ) .
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic encdebug
-Turns on debugging information for the encryption code.
-.It Ic localchars
-If this is
-.Dv TRUE ,
-then the
-.Ic flush  ,
-.Ic interrupt ,
-.Ic quit  ,
-.Ic erase ,
-and
-.Ic kill
-characters (see
-.Ic set
-above) are recognized locally, and transformed into (hopefully) appropriate
-.Tn TELNET
-control sequences
-(respectively
-.Ic ao  ,
-.Ic ip ,
-.Ic brk  ,
-.Ic ec ,
-and
-.Ic el  ;
-see
-.Ic send
-above).
-The initial value for this toggle is
-.Dv TRUE
-in \*(Lqold line by line\*(Rq mode,
-and
-.Dv FALSE
-in \*(Lqcharacter at a time\*(Rq mode.
-When the
-.Dv LINEMODE
-option is enabled, the value of
-.Ic localchars
-is ignored, and assumed to always be
-.Dv TRUE .
-If
-.Dv LINEMODE
-has ever been enabled, then
-.Ic quit
-is sent as
-.Ic abort  ,
-and
-.Ic eof
-and
-.Ic suspend
-are sent as
-.Ic eof
-and
-.Ic susp
-(see
-.Ic send
-above).
-.It Ic netdata
-Toggles the display of all network data (in hexadecimal format).
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic options
-Toggles the display of some internal
-.Nm
-protocol processing (having to do with
-.Tn TELNET
-options).
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic prettydump
-When the
-.Ic netdata
-toggle is enabled, if
-.Ic prettydump
-is enabled the output from the
-.Ic netdata
-command will be formatted in a more user readable format.
-Spaces are put between each character in the output, and the
-beginning of any
-.Nm
-escape sequence is preceded by a '*' to aid in locating them.
-.It Ic skiprc
-When the skiprc toggle is
-.Dv TRUE ,
-.Nm
-skips the reading of the
-.Pa \&.telnetrc
-file in the users home
-directory when connections are opened.  The initial
-value for this toggle is
-.Dv FALSE .
-.It Ic termdata
-Toggles the display of all terminal data (in hexadecimal format).
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic verbose_encrypt
-When the
-.Ic verbose_encrypt
-toggle is
-.Dv TRUE ,
-.Nm
-prints out a message each time encryption is enabled or
-disabled.  The initial value for this toggle is
-.Dv FALSE .
-.It Ic ?\&
-Displays the legal
-.Ic toggle
-commands.
-.El
-.It Ic z
-Suspend
-.Nm .
-This command only works when the user is using the
-.Xr csh  1  .
-.It Ic \&! Op Ar command
-Execute a single command in a subshell on the local
-system.  If
-.Ar command
-is omitted, then an interactive
-subshell is invoked.
-.It Ic ?\& Op Ar command
-Get help.  With no arguments,
-.Nm
-prints a help summary.
-If
-.Ar command
-is specified,
-.Nm
-will print the help information for just that command.
-.El
-.Sh ENVIRONMENT
-.Nm
-uses at least the
-.Ev HOME ,
-.Ev SHELL ,
-.Ev DISPLAY ,
-and
-.Ev TERM
-environment variables.
-Other environment variables may be propagated
-to the other side via the
-.Dv TELNET ENVIRON
-option.
-.Sh SEE ALSO
-.Xr rlogin 1 ,
-.Xr rsh 1 ,
-.Xr hosts 5 ,
-.Xr nologin 5 ,
-.Xr telnetd 8
-.Sh FILES
-.Bl -tag -width ~/.telnetrc -compact
-.It Pa ~/.telnetrc
-user customized telnet startup values
-.El
-.Sh HISTORY
-The
-.Nm
-command appeared in
-.Bx 4.2 .
-.Pp
-IPv6 support was added by WIDE/KAME project.
-.Sh NOTES
-On some remote systems, echo has to be turned off manually when in
-\*(Lqold line by line\*(Rq mode.
-.Pp
-In \*(Lqold line by line\*(Rq mode or
-.Dv LINEMODE
-the terminal's
-.Ic eof
-character is only recognized (and sent to the remote system)
-when it is the first character on a line.
diff --git a/crypto/telnet/telnet/telnet.c b/crypto/telnet/telnet/telnet.c
deleted file mode 100644
index 82ee4649b703..000000000000
--- a/crypto/telnet/telnet/telnet.c
+++ /dev/null
@@ -1,2378 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)telnet.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-
-/* By the way, we need to include curses.h before telnet.h since,
- * among other things, telnet.h #defines 'DO', which is a variable
- * declared in curses.h.
- */
-
-#include <ctype.h>
-#include <curses.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <term.h>
-#include <unistd.h>
-#include <arpa/telnet.h>
-
-#include "ring.h"
-
-#include "defines.h"
-#include "externs.h"
-#include "types.h"
-#include "general.h"
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-#include <libtelnet/misc.h>
-
-#define	strip(x) ((my_want_state_is_wont(TELOPT_BINARY)) ? ((x)&0x7f) : (x))
-
-static unsigned char	subbuffer[SUBBUFSIZE],
-			*subpointer, *subend;	 /* buffer for sub-options */
-#define	SB_CLEAR()	subpointer = subbuffer;
-#define	SB_TERM()	{ subend = subpointer; SB_CLEAR(); }
-#define	SB_ACCUM(c)	if (subpointer < (subbuffer+sizeof subbuffer)) { \
-				*subpointer++ = (c); \
-			}
-
-#define	SB_GET()	((*subpointer++)&0xff)
-#define	SB_PEEK()	((*subpointer)&0xff)
-#define	SB_EOF()	(subpointer >= subend)
-#define	SB_LEN()	(subend - subpointer)
-
-char	options[256];		/* The combined options */
-char	do_dont_resp[256];
-char	will_wont_resp[256];
-
-int
-	eight = 0,
-	autologin = 0,	/* Autologin anyone? */
-	skiprc = 0,
-	connected,
-	showoptions,
-	ISend,		/* trying to send network data in */
-	telnet_debug = 0,
-	crmod,
-	netdata,	/* Print out network data flow */
-	crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
-	telnetport,
-	SYNCHing,	/* we are in TELNET SYNCH mode */
-	flushout,	/* flush output */
-	autoflush = 0,	/* flush output when interrupting? */
-	autosynch,	/* send interrupt characters with SYNCH? */
-	localflow,	/* we handle flow control locally */
-	restartany,	/* if flow control enabled, restart on any character */
-	localchars,	/* we recognize interrupt/quit */
-	donelclchars,	/* the user has set "localchars" */
-	donebinarytoggle,	/* the user has put us in binary */
-	dontlecho,	/* do we suppress local echoing right now? */
-	globalmode,
-	doaddrlookup = 1, /* do a reverse address lookup? */
-	clienteof = 0;
-
-char *prompt = 0;
-#ifdef ENCRYPTION
-char *line;		/* hack around breakage in sra.c :-( !! */
-#endif
-
-cc_t escape;
-cc_t rlogin;
-#ifdef	KLUDGELINEMODE
-cc_t echoc;
-#endif
-
-/*
- * Telnet receiver states for fsm
- */
-#define	TS_DATA		0
-#define	TS_IAC		1
-#define	TS_WILL		2
-#define	TS_WONT		3
-#define	TS_DO		4
-#define	TS_DONT		5
-#define	TS_CR		6
-#define	TS_SB		7		/* sub-option collection */
-#define	TS_SE		8		/* looking for sub-option end */
-
-static int	telrcv_state;
-#ifdef	OLD_ENVIRON
-unsigned char telopt_environ = TELOPT_NEW_ENVIRON;
-#else
-# define telopt_environ TELOPT_NEW_ENVIRON
-#endif
-
-jmp_buf	toplevel;
-jmp_buf	peerdied;
-
-int	flushline;
-int	linemode;
-
-#ifdef	KLUDGELINEMODE
-int	kludgelinemode = 1;
-#endif
-
-static int is_unique(char *, char **, char **);
-
-/*
- * The following are some clocks used to decide how to interpret
- * the relationship between various variables.
- */
-
-Clocks clocks;
-
-/*
- * Initialize telnet environment.
- */
-
-void
-init_telnet(void)
-{
-    env_init();
-
-    SB_CLEAR();
-    ClearArray(options);
-
-    connected = ISend = localflow = donebinarytoggle = 0;
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-    auth_encrypt_connect(connected);
-#endif
-#endif
-    restartany = -1;
-
-    SYNCHing = 0;
-
-    /* Don't change NetTrace */
-
-    escape = CONTROL(']');
-    rlogin = _POSIX_VDISABLE;
-#ifdef	KLUDGELINEMODE
-    echoc = CONTROL('E');
-#endif
-
-    flushline = 1;
-    telrcv_state = TS_DATA;
-}
-
-
-/*
- * These routines are in charge of sending option negotiations
- * to the other side.
- *
- * The basic idea is that we send the negotiation if either side
- * is in disagreement as to what the current state should be.
- */
-
-void
-send_do(int c, int init)
-{
-    if (init) {
-	if (((do_dont_resp[c] == 0) && my_state_is_do(c)) ||
-				my_want_state_is_do(c))
-	    return;
-	set_my_want_state_do(c);
-	do_dont_resp[c]++;
-    }
-    NET2ADD(IAC, DO);
-    NETADD(c);
-    printoption("SENT", DO, c);
-}
-
-void
-send_dont(int c, int init)
-{
-    if (init) {
-	if (((do_dont_resp[c] == 0) && my_state_is_dont(c)) ||
-				my_want_state_is_dont(c))
-	    return;
-	set_my_want_state_dont(c);
-	do_dont_resp[c]++;
-    }
-    NET2ADD(IAC, DONT);
-    NETADD(c);
-    printoption("SENT", DONT, c);
-}
-
-void
-send_will(int c, int init)
-{
-    if (init) {
-	if (((will_wont_resp[c] == 0) && my_state_is_will(c)) ||
-				my_want_state_is_will(c))
-	    return;
-	set_my_want_state_will(c);
-	will_wont_resp[c]++;
-    }
-    NET2ADD(IAC, WILL);
-    NETADD(c);
-    printoption("SENT", WILL, c);
-}
-
-void
-send_wont(int c, int init)
-{
-    if (init) {
-	if (((will_wont_resp[c] == 0) && my_state_is_wont(c)) ||
-				my_want_state_is_wont(c))
-	    return;
-	set_my_want_state_wont(c);
-	will_wont_resp[c]++;
-    }
-    NET2ADD(IAC, WONT);
-    NETADD(c);
-    printoption("SENT", WONT, c);
-}
-
-void
-willoption(int option)
-{
-	int new_state_ok = 0;
-
-	if (do_dont_resp[option]) {
-	    --do_dont_resp[option];
-	    if (do_dont_resp[option] && my_state_is_do(option))
-		--do_dont_resp[option];
-	}
-
-	if ((do_dont_resp[option] == 0) && my_want_state_is_dont(option)) {
-
-	    switch (option) {
-
-	    case TELOPT_ECHO:
-	    case TELOPT_BINARY:
-	    case TELOPT_SGA:
-		settimer(modenegotiated);
-		/* FALLTHROUGH */
-	    case TELOPT_STATUS:
-#ifdef	AUTHENTICATION
-	    case TELOPT_AUTHENTICATION:
-#endif
-#ifdef	ENCRYPTION
-	    case TELOPT_ENCRYPT:
-#endif /* ENCRYPTION */
-		new_state_ok = 1;
-		break;
-
-	    case TELOPT_TM:
-		if (flushout)
-		    flushout = 0;
-		/*
-		 * Special case for TM.  If we get back a WILL,
-		 * pretend we got back a WONT.
-		 */
-		set_my_want_state_dont(option);
-		set_my_state_dont(option);
-		return;			/* Never reply to TM will's/wont's */
-
-	    case TELOPT_LINEMODE:
-	    default:
-		break;
-	    }
-
-	    if (new_state_ok) {
-		set_my_want_state_do(option);
-		send_do(option, 0);
-		setconnmode(0);		/* possibly set new tty mode */
-	    } else {
-		do_dont_resp[option]++;
-		send_dont(option, 0);
-	    }
-	}
-	set_my_state_do(option);
-#ifdef	ENCRYPTION
-	if (option == TELOPT_ENCRYPT)
-		encrypt_send_support();
-#endif	/* ENCRYPTION */
-}
-
-void
-wontoption(int option)
-{
-	if (do_dont_resp[option]) {
-	    --do_dont_resp[option];
-	    if (do_dont_resp[option] && my_state_is_dont(option))
-		--do_dont_resp[option];
-	}
-
-	if ((do_dont_resp[option] == 0) && my_want_state_is_do(option)) {
-
-	    switch (option) {
-
-#ifdef	KLUDGELINEMODE
-	    case TELOPT_SGA:
-		if (!kludgelinemode)
-		    break;
-		/* FALLTHROUGH */
-#endif
-	    case TELOPT_ECHO:
-		settimer(modenegotiated);
-		break;
-
-	    case TELOPT_TM:
-		if (flushout)
-		    flushout = 0;
-		set_my_want_state_dont(option);
-		set_my_state_dont(option);
-		return;		/* Never reply to TM will's/wont's */
-
-	    default:
-		break;
-	    }
-	    set_my_want_state_dont(option);
-	    if (my_state_is_do(option))
-		send_dont(option, 0);
-	    setconnmode(0);			/* Set new tty mode */
-	} else if (option == TELOPT_TM) {
-	    /*
-	     * Special case for TM.
-	     */
-	    if (flushout)
-		flushout = 0;
-	    set_my_want_state_dont(option);
-	}
-	set_my_state_dont(option);
-}
-
-static void
-dooption(int option)
-{
-	int new_state_ok = 0;
-
-	if (will_wont_resp[option]) {
-	    --will_wont_resp[option];
-	    if (will_wont_resp[option] && my_state_is_will(option))
-		--will_wont_resp[option];
-	}
-
-	if (will_wont_resp[option] == 0) {
-	  if (my_want_state_is_wont(option)) {
-
-	    switch (option) {
-
-	    case TELOPT_TM:
-		/*
-		 * Special case for TM.  We send a WILL, but pretend
-		 * we sent WONT.
-		 */
-		send_will(option, 0);
-		set_my_want_state_wont(TELOPT_TM);
-		set_my_state_wont(TELOPT_TM);
-		return;
-
-	    case TELOPT_BINARY:		/* binary mode */
-	    case TELOPT_NAWS:		/* window size */
-	    case TELOPT_TSPEED:		/* terminal speed */
-	    case TELOPT_LFLOW:		/* local flow control */
-	    case TELOPT_TTYPE:		/* terminal type option */
-	    case TELOPT_SGA:		/* no big deal */
-#ifdef	ENCRYPTION
-	    case TELOPT_ENCRYPT:	/* encryption variable option */
-#endif	/* ENCRYPTION */
-		new_state_ok = 1;
-		break;
-
-	    case TELOPT_NEW_ENVIRON:	/* New environment variable option */
-#ifdef	OLD_ENVIRON
-		if (my_state_is_will(TELOPT_OLD_ENVIRON))
-			send_wont(TELOPT_OLD_ENVIRON, 1); /* turn off the old */
-		goto env_common;
-	    case TELOPT_OLD_ENVIRON:	/* Old environment variable option */
-		if (my_state_is_will(TELOPT_NEW_ENVIRON))
-			break;		/* Don't enable if new one is in use! */
-	    env_common:
-		telopt_environ = option;
-#endif
-		new_state_ok = 1;
-		break;
-
-#ifdef	AUTHENTICATION
-	    case TELOPT_AUTHENTICATION:
-		if (autologin)
-			new_state_ok = 1;
-		break;
-#endif
-
-	    case TELOPT_XDISPLOC:	/* X Display location */
-		if (env_getvalue("DISPLAY"))
-		    new_state_ok = 1;
-		break;
-
-	    case TELOPT_LINEMODE:
-#ifdef	KLUDGELINEMODE
-		kludgelinemode = 0;
-		send_do(TELOPT_SGA, 1);
-#endif
-		set_my_want_state_will(TELOPT_LINEMODE);
-		send_will(option, 0);
-		set_my_state_will(TELOPT_LINEMODE);
-		slc_init();
-		return;
-
-	    case TELOPT_ECHO:		/* We're never going to echo... */
-	    default:
-		break;
-	    }
-
-	    if (new_state_ok) {
-		set_my_want_state_will(option);
-		send_will(option, 0);
-		setconnmode(0);			/* Set new tty mode */
-	    } else {
-		will_wont_resp[option]++;
-		send_wont(option, 0);
-	    }
-	  } else {
-	    /*
-	     * Handle options that need more things done after the
-	     * other side has acknowledged the option.
-	     */
-	    switch (option) {
-	    case TELOPT_LINEMODE:
-#ifdef	KLUDGELINEMODE
-		kludgelinemode = 0;
-		send_do(TELOPT_SGA, 1);
-#endif
-		set_my_state_will(option);
-		slc_init();
-		send_do(TELOPT_SGA, 0);
-		return;
-	    }
-	  }
-	}
-	set_my_state_will(option);
-}
-
-static void
-dontoption(int option)
-{
-
-	if (will_wont_resp[option]) {
-	    --will_wont_resp[option];
-	    if (will_wont_resp[option] && my_state_is_wont(option))
-		--will_wont_resp[option];
-	}
-
-	if ((will_wont_resp[option] == 0) && my_want_state_is_will(option)) {
-	    switch (option) {
-	    case TELOPT_LINEMODE:
-		linemode = 0;	/* put us back to the default state */
-		break;
-#ifdef	OLD_ENVIRON
-	    case TELOPT_NEW_ENVIRON:
-		/*
-		 * The new environ option wasn't recognized, try
-		 * the old one.
-		 */
-		send_will(TELOPT_OLD_ENVIRON, 1);
-		telopt_environ = TELOPT_OLD_ENVIRON;
-		break;
-#endif
-	    }
-	    /* we always accept a DONT */
-	    set_my_want_state_wont(option);
-	    if (my_state_is_will(option))
-		send_wont(option, 0);
-	    setconnmode(0);			/* Set new tty mode */
-	}
-	set_my_state_wont(option);
-}
-
-/*
- * Given a buffer returned by tgetent(), this routine will turn
- * the pipe separated list of names in the buffer into an array
- * of pointers to null terminated names.  We toss out any bad,
- * duplicate, or verbose names (names with spaces).
- */
-
-static const char *name_unknown = "UNKNOWN";
-static const char *unknown[] = { NULL, NULL };
-
-static const char **
-mklist(char *buf, char *name)
-{
-	int n;
-	char c, *cp, **argvp, *cp2, **argv, **avt;
-
-	if (name) {
-		if (strlen(name) > 40) {
-			name = 0;
-			unknown[0] = name_unknown;
-		} else {
-			unknown[0] = name;
-			upcase(name);
-		}
-	} else
-		unknown[0] = name_unknown;
-	/*
-	 * Count up the number of names.
-	 */
-	for (n = 1, cp = buf; *cp && *cp != ':'; cp++) {
-		if (*cp == '|')
-			n++;
-	}
-	/*
-	 * Allocate an array to put the name pointers into
-	 */
-	argv = (char **)malloc((n+3)*sizeof(char *));
-	if (argv == 0)
-		return(unknown);
-
-	/*
-	 * Fill up the array of pointers to names.
-	 */
-	*argv = 0;
-	argvp = argv+1;
-	n = 0;
-	for (cp = cp2 = buf; (c = *cp);  cp++) {
-		if (c == '|' || c == ':') {
-			*cp++ = '\0';
-			/*
-			 * Skip entries that have spaces or are over 40
-			 * characters long.  If this is our environment
-			 * name, then put it up front.  Otherwise, as
-			 * long as this is not a duplicate name (case
-			 * insensitive) add it to the list.
-			 */
-			if (n || (cp - cp2 > 41))
-				;
-			else if (name && (strncasecmp(name, cp2, cp-cp2) == 0))
-				*argv = cp2;
-			else if (is_unique(cp2, argv+1, argvp))
-				*argvp++ = cp2;
-			if (c == ':')
-				break;
-			/*
-			 * Skip multiple delimiters. Reset cp2 to
-			 * the beginning of the next name. Reset n,
-			 * the flag for names with spaces.
-			 */
-			while ((c = *cp) == '|')
-				cp++;
-			cp2 = cp;
-			n = 0;
-		}
-		/*
-		 * Skip entries with spaces or non-ascii values.
-		 * Convert lower case letters to upper case.
-		 */
-		if ((c == ' ') || !isascii(c))
-			n = 1;
-		else if (islower(c))
-			*cp = toupper(c);
-	}
-
-	/*
-	 * Check for an old V6 2 character name.  If the second
-	 * name points to the beginning of the buffer, and is
-	 * only 2 characters long, move it to the end of the array.
-	 */
-	if ((argv[1] == buf) && (strlen(argv[1]) == 2)) {
-		--argvp;
-		for (avt = &argv[1]; avt < argvp; avt++)
-			*avt = *(avt+1);
-		*argvp++ = buf;
-	}
-
-	/*
-	 * Duplicate last name, for TTYPE option, and null
-	 * terminate the array.  If we didn't find a match on
-	 * our terminal name, put that name at the beginning.
-	 */
-	cp = *(argvp-1);
-	*argvp++ = cp;
-	*argvp = 0;
-
-	if (*argv == 0) {
-		if (name)
-			*argv = name;
-		else {
-			--argvp;
-			for (avt = argv; avt < argvp; avt++)
-				*avt = *(avt+1);
-		}
-	}
-	if (*argv)
-		return((const char **)argv);
-	else
-		return(unknown);
-}
-
-static int
-is_unique(char *name, char **as, char **ae)
-{
-	char **ap;
-	int n;
-
-	n = strlen(name) + 1;
-	for (ap = as; ap < ae; ap++)
-		if (strncasecmp(*ap, name, n) == 0)
-			return(0);
-	return (1);
-}
-
-#ifdef	TERMCAP
-char termbuf[1024];
-
-/*ARGSUSED*/
-static int
-setupterm(char *tname, int fd, int *errp)
-{
-	if (tgetent(termbuf, tname) == 1) {
-		termbuf[1023] = '\0';
-		if (errp)
-			*errp = 1;
-		return(0);
-	}
-	if (errp)
-		*errp = 0;
-	return(-1);
-}
-#else
-#define	termbuf	ttytype
-extern char ttytype[];
-#endif
-
-int resettermname = 1;
-
-static const char *
-gettermname(void)
-{
-	char *tname;
-	static const char **tnamep = 0;
-	static const char **next;
-	int err;
-
-	if (resettermname) {
-		resettermname = 0;
-		if (tnamep && tnamep != unknown)
-			free(tnamep);
-		if ((tname = env_getvalue("TERM")) &&
-				(setupterm(tname, 1, &err) == 0)) {
-			tnamep = mklist(termbuf, tname);
-		} else {
-			if (tname && (strlen(tname) <= 40)) {
-				unknown[0] = tname;
-				upcase(tname);
-			} else
-				unknown[0] = name_unknown;
-			tnamep = unknown;
-		}
-		next = tnamep;
-	}
-	if (*next == 0)
-		next = tnamep;
-	return(*next++);
-}
-/*
- * suboption()
- *
- *	Look at the sub-option buffer, and try to be helpful to the other
- * side.
- *
- *	Currently we recognize:
- *
- *		Terminal type, send request.
- *		Terminal speed (send request).
- *		Local flow control (is request).
- *		Linemode
- */
-
-static void
-suboption(void)
-{
-    unsigned char subchar;
-
-    printsub('<', subbuffer, SB_LEN()+2);
-    switch (subchar = SB_GET()) {
-    case TELOPT_TTYPE:
-	if (my_want_state_is_wont(TELOPT_TTYPE))
-	    return;
-	if (SB_EOF() || SB_GET() != TELQUAL_SEND) {
-	    return;
-	} else {
-	    const char *name;
-	    unsigned char temp[50];
-	    int len;
-
-	    name = gettermname();
-	    len = strlen(name) + 4 + 2;
-	    if (len < NETROOM()) {
-		sprintf(temp, "%c%c%c%c%s%c%c", IAC, SB, TELOPT_TTYPE,
-				TELQUAL_IS, name, IAC, SE);
-		ring_supply_data(&netoring, temp, len);
-		printsub('>', &temp[2], len-2);
-	    } else {
-		ExitString("No room in buffer for terminal type.\n", 1);
-		/*NOTREACHED*/
-	    }
-	}
-	break;
-    case TELOPT_TSPEED:
-	if (my_want_state_is_wont(TELOPT_TSPEED))
-	    return;
-	if (SB_EOF())
-	    return;
-	if (SB_GET() == TELQUAL_SEND) {
-	    long ospeed, ispeed;
-	    unsigned char temp[50];
-	    int len;
-
-	    TerminalSpeeds(&ispeed, &ospeed);
-
-	    sprintf((char *)temp, "%c%c%c%c%ld,%ld%c%c", IAC, SB, TELOPT_TSPEED,
-		    TELQUAL_IS, ospeed, ispeed, IAC, SE);
-	    len = strlen((char *)temp+4) + 4;	/* temp[3] is 0 ... */
-
-	    if (len < NETROOM()) {
-		ring_supply_data(&netoring, temp, len);
-		printsub('>', temp+2, len - 2);
-	    }
-/*@*/	    else printf("lm_will: not enough room in buffer\n");
-	}
-	break;
-    case TELOPT_LFLOW:
-	if (my_want_state_is_wont(TELOPT_LFLOW))
-	    return;
-	if (SB_EOF())
-	    return;
-	switch(SB_GET()) {
-	case LFLOW_RESTART_ANY:
-	    restartany = 1;
-	    break;
-	case LFLOW_RESTART_XON:
-	    restartany = 0;
-	    break;
-	case LFLOW_ON:
-	    localflow = 1;
-	    break;
-	case LFLOW_OFF:
-	    localflow = 0;
-	    break;
-	default:
-	    return;
-	}
-	setcommandmode();
-	setconnmode(0);
-	break;
-
-    case TELOPT_LINEMODE:
-	if (my_want_state_is_wont(TELOPT_LINEMODE))
-	    return;
-	if (SB_EOF())
-	    return;
-	switch (SB_GET()) {
-	case WILL:
-	    lm_will(subpointer, SB_LEN());
-	    break;
-	case WONT:
-	    lm_wont(subpointer, SB_LEN());
-	    break;
-	case DO:
-	    lm_do(subpointer, SB_LEN());
-	    break;
-	case DONT:
-	    lm_dont(subpointer, SB_LEN());
-	    break;
-	case LM_SLC:
-	    slc(subpointer, SB_LEN());
-	    break;
-	case LM_MODE:
-	    lm_mode(subpointer, SB_LEN(), 0);
-	    break;
-	default:
-	    break;
-	}
-	break;
-
-#ifdef	OLD_ENVIRON
-    case TELOPT_OLD_ENVIRON:
-#endif
-    case TELOPT_NEW_ENVIRON:
-	if (SB_EOF())
-	    return;
-	switch(SB_PEEK()) {
-	case TELQUAL_IS:
-	case TELQUAL_INFO:
-	    if (my_want_state_is_dont(subchar))
-		return;
-	    break;
-	case TELQUAL_SEND:
-	    if (my_want_state_is_wont(subchar)) {
-		return;
-	    }
-	    break;
-	default:
-	    return;
-	}
-	env_opt(subpointer, SB_LEN());
-	break;
-
-    case TELOPT_XDISPLOC:
-	if (my_want_state_is_wont(TELOPT_XDISPLOC))
-	    return;
-	if (SB_EOF())
-	    return;
-	if (SB_GET() == TELQUAL_SEND) {
-	    unsigned char temp[50], *dp;
-	    int len;
-
-	    if ((dp = env_getvalue("DISPLAY")) == NULL ||
-		strlen(dp) > sizeof(temp) - 7) {
-		/*
-		 * Something happened, we no longer have a DISPLAY
-		 * variable.  Or it is too long.  So, turn off the option.
-		 */
-		send_wont(TELOPT_XDISPLOC, 1);
-		break;
-	    }
-	    snprintf(temp, sizeof(temp), "%c%c%c%c%s%c%c", IAC, SB,
-		    TELOPT_XDISPLOC, TELQUAL_IS, dp, IAC, SE);
-	    len = strlen((char *)temp+4) + 4;	/* temp[3] is 0 ... */
-
-	    if (len < NETROOM()) {
-		ring_supply_data(&netoring, temp, len);
-		printsub('>', temp+2, len - 2);
-	    }
-/*@*/	    else printf("lm_will: not enough room in buffer\n");
-	}
-	break;
-
-#ifdef	AUTHENTICATION
-	case TELOPT_AUTHENTICATION: {
-		if (!autologin)
-			break;
-		if (SB_EOF())
-			return;
-		switch(SB_GET()) {
-		case TELQUAL_IS:
-			if (my_want_state_is_dont(TELOPT_AUTHENTICATION))
-				return;
-			auth_is(subpointer, SB_LEN());
-			break;
-		case TELQUAL_SEND:
-			if (my_want_state_is_wont(TELOPT_AUTHENTICATION))
-				return;
-			auth_send(subpointer, SB_LEN());
-			break;
-		case TELQUAL_REPLY:
-			if (my_want_state_is_wont(TELOPT_AUTHENTICATION))
-				return;
-			auth_reply(subpointer, SB_LEN());
-			break;
-		case TELQUAL_NAME:
-			if (my_want_state_is_dont(TELOPT_AUTHENTICATION))
-				return;
-			auth_name(subpointer, SB_LEN());
-			break;
-		}
-	}
-	break;
-#endif
-#ifdef	ENCRYPTION
-	case TELOPT_ENCRYPT:
-		if (SB_EOF())
-			return;
-		switch(SB_GET()) {
-		case ENCRYPT_START:
-			if (my_want_state_is_dont(TELOPT_ENCRYPT))
-				return;
-			encrypt_start(subpointer, SB_LEN());
-			break;
-		case ENCRYPT_END:
-			if (my_want_state_is_dont(TELOPT_ENCRYPT))
-				return;
-			encrypt_end();
-			break;
-		case ENCRYPT_SUPPORT:
-			if (my_want_state_is_wont(TELOPT_ENCRYPT))
-				return;
-			encrypt_support(subpointer, SB_LEN());
-			break;
-		case ENCRYPT_REQSTART:
-			if (my_want_state_is_wont(TELOPT_ENCRYPT))
-				return;
-			encrypt_request_start(subpointer, SB_LEN());
-			break;
-		case ENCRYPT_REQEND:
-			if (my_want_state_is_wont(TELOPT_ENCRYPT))
-				return;
-			/*
-			 * We can always send an REQEND so that we cannot
-			 * get stuck encrypting.  We should only get this
-			 * if we have been able to get in the correct mode
-			 * anyhow.
-			 */
-			encrypt_request_end();
-			break;
-		case ENCRYPT_IS:
-			if (my_want_state_is_dont(TELOPT_ENCRYPT))
-				return;
-			encrypt_is(subpointer, SB_LEN());
-			break;
-		case ENCRYPT_REPLY:
-			if (my_want_state_is_wont(TELOPT_ENCRYPT))
-				return;
-			encrypt_reply(subpointer, SB_LEN());
-			break;
-		case ENCRYPT_ENC_KEYID:
-			if (my_want_state_is_dont(TELOPT_ENCRYPT))
-				return;
-			encrypt_enc_keyid(subpointer, SB_LEN());
-			break;
-		case ENCRYPT_DEC_KEYID:
-			if (my_want_state_is_wont(TELOPT_ENCRYPT))
-				return;
-			encrypt_dec_keyid(subpointer, SB_LEN());
-			break;
-		default:
-			break;
-		}
-		break;
-#endif	/* ENCRYPTION */
-    default:
-	break;
-    }
-}
-
-static unsigned char str_lm[] = { IAC, SB, TELOPT_LINEMODE, 0, 0, IAC, SE };
-
-void
-lm_will(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_will: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:	/* We shouldn't ever get this... */
-    default:
-	str_lm[3] = DONT;
-	str_lm[4] = cmd[0];
-	if (NETROOM() > (int)sizeof(str_lm)) {
-	    ring_supply_data(&netoring, str_lm, sizeof(str_lm));
-	    printsub('>', &str_lm[2], sizeof(str_lm)-2);
-	}
-/*@*/	else printf("lm_will: not enough room in buffer\n");
-	break;
-    }
-}
-
-void
-lm_wont(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_wont: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:	/* We shouldn't ever get this... */
-    default:
-	/* We are always DONT, so don't respond */
-	return;
-    }
-}
-
-void
-lm_do(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_do: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:
-    default:
-	str_lm[3] = WONT;
-	str_lm[4] = cmd[0];
-	if (NETROOM() > (int)sizeof(str_lm)) {
-	    ring_supply_data(&netoring, str_lm, sizeof(str_lm));
-	    printsub('>', &str_lm[2], sizeof(str_lm)-2);
-	}
-/*@*/	else printf("lm_do: not enough room in buffer\n");
-	break;
-    }
-}
-
-void
-lm_dont(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_dont: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:
-    default:
-	/* we are always WONT, so don't respond */
-	break;
-    }
-}
-
-static unsigned char str_lm_mode[] = {
-	IAC, SB, TELOPT_LINEMODE, LM_MODE, 0, IAC, SE
-};
-
-void
-lm_mode(unsigned char *cmd, int len, int init)
-{
-	if (len != 1)
-		return;
-	if ((linemode&MODE_MASK&~MODE_ACK) == *cmd)
-		return;
-	if (*cmd&MODE_ACK)
-		return;
-	linemode = *cmd&(MODE_MASK&~MODE_ACK);
-	str_lm_mode[4] = linemode;
-	if (!init)
-	    str_lm_mode[4] |= MODE_ACK;
-	if (NETROOM() > (int)sizeof(str_lm_mode)) {
-	    ring_supply_data(&netoring, str_lm_mode, sizeof(str_lm_mode));
-	    printsub('>', &str_lm_mode[2], sizeof(str_lm_mode)-2);
-	}
-/*@*/	else printf("lm_mode: not enough room in buffer\n");
-	setconnmode(0);	/* set changed mode */
-}
-
-
-
-/*
- * slc()
- * Handle special character suboption of LINEMODE.
- */
-
-struct spc {
-	cc_t val;
-	cc_t *valp;
-	char flags;	/* Current flags & level */
-	char mylevel;	/* Maximum level & flags */
-} spc_data[NSLC+1];
-
-#define SLC_IMPORT	0
-#define	SLC_EXPORT	1
-#define SLC_RVALUE	2
-static int slc_mode = SLC_EXPORT;
-
-void
-slc_init(void)
-{
-	struct spc *spcp;
-
-	localchars = 1;
-	for (spcp = spc_data; spcp < &spc_data[NSLC+1]; spcp++) {
-		spcp->val = 0;
-		spcp->valp = 0;
-		spcp->flags = spcp->mylevel = SLC_NOSUPPORT;
-	}
-
-#define	initfunc(func, flags) { \
-					spcp = &spc_data[func]; \
-					if ((spcp->valp = tcval(func))) { \
-					    spcp->val = *spcp->valp; \
-					    spcp->mylevel = SLC_VARIABLE|flags; \
-					} else { \
-					    spcp->val = 0; \
-					    spcp->mylevel = SLC_DEFAULT; \
-					} \
-				    }
-
-	initfunc(SLC_SYNCH, 0);
-	/* No BRK */
-	initfunc(SLC_AO, 0);
-	initfunc(SLC_AYT, 0);
-	/* No EOR */
-	initfunc(SLC_ABORT, SLC_FLUSHIN|SLC_FLUSHOUT);
-	initfunc(SLC_EOF, 0);
-#ifndef	SYSV_TERMIO
-	initfunc(SLC_SUSP, SLC_FLUSHIN);
-#endif
-	initfunc(SLC_EC, 0);
-	initfunc(SLC_EL, 0);
-#ifndef	SYSV_TERMIO
-	initfunc(SLC_EW, 0);
-	initfunc(SLC_RP, 0);
-	initfunc(SLC_LNEXT, 0);
-#endif
-	initfunc(SLC_XON, 0);
-	initfunc(SLC_XOFF, 0);
-#ifdef	SYSV_TERMIO
-	spc_data[SLC_XON].mylevel = SLC_CANTCHANGE;
-	spc_data[SLC_XOFF].mylevel = SLC_CANTCHANGE;
-#endif
-	initfunc(SLC_FORW1, 0);
-#ifdef	USE_TERMIO
-	initfunc(SLC_FORW2, 0);
-	/* No FORW2 */
-#endif
-
-	initfunc(SLC_IP, SLC_FLUSHIN|SLC_FLUSHOUT);
-#undef	initfunc
-
-	if (slc_mode == SLC_EXPORT)
-		slc_export();
-	else
-		slc_import(1);
-
-}
-
-void
-slcstate(void)
-{
-    printf("Special characters are %s values\n",
-		slc_mode == SLC_IMPORT ? "remote default" :
-		slc_mode == SLC_EXPORT ? "local" :
-					 "remote");
-}
-
-void
-slc_mode_export(void)
-{
-    slc_mode = SLC_EXPORT;
-    if (my_state_is_will(TELOPT_LINEMODE))
-	slc_export();
-}
-
-void
-slc_mode_import(int def)
-{
-    slc_mode = def ? SLC_IMPORT : SLC_RVALUE;
-    if (my_state_is_will(TELOPT_LINEMODE))
-	slc_import(def);
-}
-
-unsigned char slc_import_val[] = {
-	IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_VARIABLE, 0, IAC, SE
-};
-unsigned char slc_import_def[] = {
-	IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_DEFAULT, 0, IAC, SE
-};
-
-void
-slc_import(int def)
-{
-    if (NETROOM() > (int)sizeof(slc_import_val)) {
-	if (def) {
-	    ring_supply_data(&netoring, slc_import_def, sizeof(slc_import_def));
-	    printsub('>', &slc_import_def[2], sizeof(slc_import_def)-2);
-	} else {
-	    ring_supply_data(&netoring, slc_import_val, sizeof(slc_import_val));
-	    printsub('>', &slc_import_val[2], sizeof(slc_import_val)-2);
-	}
-    }
-/*@*/ else printf("slc_import: not enough room\n");
-}
-
-void
-slc_export(void)
-{
-    struct spc *spcp;
-
-    TerminalDefaultChars();
-
-    slc_start_reply();
-    for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
-	if (spcp->mylevel != SLC_NOSUPPORT) {
-	    if (spcp->val == (cc_t)(_POSIX_VDISABLE))
-		spcp->flags = SLC_NOSUPPORT;
-	    else
-		spcp->flags = spcp->mylevel;
-	    if (spcp->valp)
-		spcp->val = *spcp->valp;
-	    slc_add_reply(spcp - spc_data, spcp->flags, spcp->val);
-	}
-    }
-    slc_end_reply();
-    (void)slc_update();
-    setconnmode(1);	/* Make sure the character values are set */
-}
-
-void
-slc(unsigned char *cp, int len)
-{
-	struct spc *spcp;
-	int func,level;
-
-	slc_start_reply();
-
-	for (; len >= 3; len -=3, cp +=3) {
-
-		func = cp[SLC_FUNC];
-
-		if (func == 0) {
-			/*
-			 * Client side: always ignore 0 function.
-			 */
-			continue;
-		}
-		if (func > NSLC) {
-			if ((cp[SLC_FLAGS] & SLC_LEVELBITS) != SLC_NOSUPPORT)
-				slc_add_reply(func, SLC_NOSUPPORT, 0);
-			continue;
-		}
-
-		spcp = &spc_data[func];
-
-		level = cp[SLC_FLAGS]&(SLC_LEVELBITS|SLC_ACK);
-
-		if ((cp[SLC_VALUE] == (unsigned char)spcp->val) &&
-		    ((level&SLC_LEVELBITS) == (spcp->flags&SLC_LEVELBITS))) {
-			continue;
-		}
-
-		if (level == (SLC_DEFAULT|SLC_ACK)) {
-			/*
-			 * This is an error condition, the SLC_ACK
-			 * bit should never be set for the SLC_DEFAULT
-			 * level.  Our best guess to recover is to
-			 * ignore the SLC_ACK bit.
-			 */
-			cp[SLC_FLAGS] &= ~SLC_ACK;
-		}
-
-		if (level == ((spcp->flags&SLC_LEVELBITS)|SLC_ACK)) {
-			spcp->val = (cc_t)cp[SLC_VALUE];
-			spcp->flags = cp[SLC_FLAGS];	/* include SLC_ACK */
-			continue;
-		}
-
-		level &= ~SLC_ACK;
-
-		if (level <= (spcp->mylevel&SLC_LEVELBITS)) {
-			spcp->flags = cp[SLC_FLAGS]|SLC_ACK;
-			spcp->val = (cc_t)cp[SLC_VALUE];
-		}
-		if (level == SLC_DEFAULT) {
-			if ((spcp->mylevel&SLC_LEVELBITS) != SLC_DEFAULT)
-				spcp->flags = spcp->mylevel;
-			else
-				spcp->flags = SLC_NOSUPPORT;
-		}
-		slc_add_reply(func, spcp->flags, spcp->val);
-	}
-	slc_end_reply();
-	if (slc_update())
-		setconnmode(1);	/* set the  new character values */
-}
-
-void
-slc_check(void)
-{
-    struct spc *spcp;
-
-    slc_start_reply();
-    for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
-	if (spcp->valp && spcp->val != *spcp->valp) {
-	    spcp->val = *spcp->valp;
-	    if (spcp->val == (cc_t)(_POSIX_VDISABLE))
-		spcp->flags = SLC_NOSUPPORT;
-	    else
-		spcp->flags = spcp->mylevel;
-	    slc_add_reply(spcp - spc_data, spcp->flags, spcp->val);
-	}
-    }
-    slc_end_reply();
-    setconnmode(1);
-}
-
-unsigned char slc_reply[128];
-unsigned char *slc_replyp;
-
-void
-slc_start_reply(void)
-{
-	slc_replyp = slc_reply;
-	*slc_replyp++ = IAC;
-	*slc_replyp++ = SB;
-	*slc_replyp++ = TELOPT_LINEMODE;
-	*slc_replyp++ = LM_SLC;
-}
-
-void
-slc_add_reply(unsigned char func, unsigned char flags, cc_t value)
-{
-	if ((*slc_replyp++ = func) == IAC)
-		*slc_replyp++ = IAC;
-	if ((*slc_replyp++ = flags) == IAC)
-		*slc_replyp++ = IAC;
-	if ((*slc_replyp++ = (unsigned char)value) == IAC)
-		*slc_replyp++ = IAC;
-}
-
-void
-slc_end_reply(void)
-{
-    int len;
-
-    *slc_replyp++ = IAC;
-    *slc_replyp++ = SE;
-    len = slc_replyp - slc_reply;
-    if (len <= 6)
-	return;
-    if (NETROOM() > len) {
-	ring_supply_data(&netoring, slc_reply, slc_replyp - slc_reply);
-	printsub('>', &slc_reply[2], slc_replyp - slc_reply - 2);
-    }
-/*@*/else printf("slc_end_reply: not enough room\n");
-}
-
-int
-slc_update(void)
-{
-	struct spc *spcp;
-	int need_update = 0;
-
-	for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
-		if (!(spcp->flags&SLC_ACK))
-			continue;
-		spcp->flags &= ~SLC_ACK;
-		if (spcp->valp && (*spcp->valp != spcp->val)) {
-			*spcp->valp = spcp->val;
-			need_update = 1;
-		}
-	}
-	return(need_update);
-}
-
-#ifdef	OLD_ENVIRON
-# ifdef	ENV_HACK
-/*
- * Earlier version of telnet/telnetd from the BSD code had
- * the definitions of VALUE and VAR reversed.  To ensure
- * maximum interoperability, we assume that the server is
- * an older BSD server, until proven otherwise.  The newer
- * BSD servers should be able to handle either definition,
- * so it is better to use the wrong values if we don't
- * know what type of server it is.
- */
-int env_auto = 1;
-int old_env_var = OLD_ENV_VAR;
-int old_env_value = OLD_ENV_VALUE;
-# else
-#  define old_env_var OLD_ENV_VAR
-#  define old_env_value OLD_ENV_VALUE
-# endif
-#endif
-
-void
-env_opt(unsigned char *buf, int len)
-{
-	unsigned char *ep = 0, *epc = 0;
-	int i;
-
-	switch(buf[0]&0xff) {
-	case TELQUAL_SEND:
-		env_opt_start();
-		if (len == 1) {
-			env_opt_add(NULL);
-		} else for (i = 1; i < len; i++) {
-			switch (buf[i]&0xff) {
-#ifdef	OLD_ENVIRON
-			case OLD_ENV_VAR:
-# ifdef	ENV_HACK
-				if (telopt_environ == TELOPT_OLD_ENVIRON
-				    && env_auto) {
-					/* Server has the same definitions */
-					old_env_var = OLD_ENV_VAR;
-					old_env_value = OLD_ENV_VALUE;
-				}
-				/* FALLTHROUGH */
-# endif
-			case OLD_ENV_VALUE:
-				/*
-				 * Although OLD_ENV_VALUE is not legal, we will
-				 * still recognize it, just in case it is an
-				 * old server that has VAR & VALUE mixed up...
-				 */
-				/* FALLTHROUGH */
-#else
-			case NEW_ENV_VAR:
-#endif
-			case ENV_USERVAR:
-				if (ep) {
-					*epc = 0;
-					env_opt_add(ep);
-				}
-				ep = epc = &buf[i+1];
-				break;
-			case ENV_ESC:
-				i++;
-				/*FALLTHROUGH*/
-			default:
-				if (epc)
-					*epc++ = buf[i];
-				break;
-			}
-		}
-		if (ep) {
-			*epc = 0;
-			env_opt_add(ep);
-		}
-		env_opt_end(1);
-		break;
-
-	case TELQUAL_IS:
-	case TELQUAL_INFO:
-		/* Ignore for now.  We shouldn't get it anyway. */
-		break;
-
-	default:
-		break;
-	}
-}
-
-#define	OPT_REPLY_SIZE	256
-unsigned char *opt_reply;
-unsigned char *opt_replyp;
-unsigned char *opt_replyend;
-
-void
-env_opt_start(void)
-{
-	if (opt_reply)
-		opt_reply = (unsigned char *)realloc(opt_reply, OPT_REPLY_SIZE);
-	else
-		opt_reply = (unsigned char *)malloc(OPT_REPLY_SIZE);
-	if (opt_reply == NULL) {
-/*@*/		printf("env_opt_start: malloc()/realloc() failed!!!\n");
-		opt_reply = opt_replyp = opt_replyend = NULL;
-		return;
-	}
-	opt_replyp = opt_reply;
-	opt_replyend = opt_reply + OPT_REPLY_SIZE;
-	*opt_replyp++ = IAC;
-	*opt_replyp++ = SB;
-	*opt_replyp++ = telopt_environ;
-	*opt_replyp++ = TELQUAL_IS;
-}
-
-void
-env_opt_start_info(void)
-{
-	env_opt_start();
-	if (opt_replyp)
-	    opt_replyp[-1] = TELQUAL_INFO;
-}
-
-void
-env_opt_add(unsigned char *ep)
-{
-	unsigned char *vp, c;
-
-	if (opt_reply == NULL)		/*XXX*/
-		return;			/*XXX*/
-
-	if (ep == NULL || *ep == '\0') {
-		/* Send user defined variables first. */
-		env_default(1, 0);
-		while ((ep = env_default(0, 0)))
-			env_opt_add(ep);
-
-		/* Now add the list of well know variables.  */
-		env_default(1, 1);
-		while ((ep = env_default(0, 1)))
-			env_opt_add(ep);
-		return;
-	}
-	vp = env_getvalue(ep);
-	if (opt_replyp + (vp ? strlen((char *)vp) : 0) +
-				strlen((char *)ep) + 6 > opt_replyend)
-	{
-		int len;
-		opt_replyend += OPT_REPLY_SIZE;
-		len = opt_replyend - opt_reply;
-		opt_reply = (unsigned char *)realloc(opt_reply, len);
-		if (opt_reply == NULL) {
-/*@*/			printf("env_opt_add: realloc() failed!!!\n");
-			opt_reply = opt_replyp = opt_replyend = NULL;
-			return;
-		}
-		opt_replyp = opt_reply + len - (opt_replyend - opt_replyp);
-		opt_replyend = opt_reply + len;
-	}
-	if (opt_welldefined(ep))
-#ifdef	OLD_ENVIRON
-		if (telopt_environ == TELOPT_OLD_ENVIRON)
-			*opt_replyp++ = old_env_var;
-		else
-#endif
-			*opt_replyp++ = NEW_ENV_VAR;
-	else
-		*opt_replyp++ = ENV_USERVAR;
-	for (;;) {
-		while ((c = *ep++)) {
-			switch(c&0xff) {
-			case IAC:
-				*opt_replyp++ = IAC;
-				break;
-			case NEW_ENV_VAR:
-			case NEW_ENV_VALUE:
-			case ENV_ESC:
-			case ENV_USERVAR:
-				*opt_replyp++ = ENV_ESC;
-				break;
-			}
-			*opt_replyp++ = c;
-		}
-		if ((ep = vp)) {
-#ifdef	OLD_ENVIRON
-			if (telopt_environ == TELOPT_OLD_ENVIRON)
-				*opt_replyp++ = old_env_value;
-			else
-#endif
-				*opt_replyp++ = NEW_ENV_VALUE;
-			vp = NULL;
-		} else
-			break;
-	}
-}
-
-int
-opt_welldefined(const char *ep)
-{
-	if ((strcmp(ep, "USER") == 0) ||
-	    (strcmp(ep, "DISPLAY") == 0) ||
-	    (strcmp(ep, "PRINTER") == 0) ||
-	    (strcmp(ep, "SYSTEMTYPE") == 0) ||
-	    (strcmp(ep, "JOB") == 0) ||
-	    (strcmp(ep, "ACCT") == 0))
-		return(1);
-	return(0);
-}
-
-void
-env_opt_end(int emptyok)
-{
-	int len;
-
-	len = opt_replyp - opt_reply + 2;
-	if (emptyok || len > 6) {
-		*opt_replyp++ = IAC;
-		*opt_replyp++ = SE;
-		if (NETROOM() > len) {
-			ring_supply_data(&netoring, opt_reply, len);
-			printsub('>', &opt_reply[2], len - 2);
-		}
-/*@*/		else printf("slc_end_reply: not enough room\n");
-	}
-	if (opt_reply) {
-		free(opt_reply);
-		opt_reply = opt_replyp = opt_replyend = NULL;
-	}
-}
-
-
-
-int
-telrcv(void)
-{
-    int c;
-    int scc;
-    unsigned char *sbp;
-    int count;
-    int returnValue = 0;
-
-    scc = 0;
-    count = 0;
-    while (TTYROOM() > 2) {
-	if (scc == 0) {
-	    if (count) {
-		ring_consumed(&netiring, count);
-		returnValue = 1;
-		count = 0;
-	    }
-	    sbp = netiring.consume;
-	    scc = ring_full_consecutive(&netiring);
-	    if (scc == 0) {
-		/* No more data coming in */
-		break;
-	    }
-	}
-
-	c = *sbp++ & 0xff, scc--; count++;
-#ifdef	ENCRYPTION
-	if (decrypt_input)
-		c = (*decrypt_input)(c);
-#endif	/* ENCRYPTION */
-
-	switch (telrcv_state) {
-
-	case TS_CR:
-	    telrcv_state = TS_DATA;
-	    if (c == '\0') {
-		break;	/* Ignore \0 after CR */
-	    }
-	    else if ((c == '\n') && my_want_state_is_dont(TELOPT_ECHO) && !crmod) {
-		TTYADD(c);
-		break;
-	    }
-	    /* FALLTHROUGH */
-
-	case TS_DATA:
-	    if (c == IAC) {
-		telrcv_state = TS_IAC;
-		break;
-	    }
-		    /*
-		     * The 'crmod' hack (see following) is needed
-		     * since we can't * set CRMOD on output only.
-		     * Machines like MULTICS like to send \r without
-		     * \n; since we must turn off CRMOD to get proper
-		     * input, the mapping is done here (sigh).
-		     */
-	    if ((c == '\r') && my_want_state_is_dont(TELOPT_BINARY)) {
-		if (scc > 0) {
-		    c = *sbp&0xff;
-#ifdef	ENCRYPTION
-		    if (decrypt_input)
-			c = (*decrypt_input)(c);
-#endif	/* ENCRYPTION */
-		    if (c == 0) {
-			sbp++, scc--; count++;
-			/* a "true" CR */
-			TTYADD('\r');
-		    } else if (my_want_state_is_dont(TELOPT_ECHO) &&
-					(c == '\n')) {
-			sbp++, scc--; count++;
-			TTYADD('\n');
-		    } else {
-#ifdef	ENCRYPTION
-			if (decrypt_input)
-			    (*decrypt_input)(-1);
-#endif	/* ENCRYPTION */
-
-			TTYADD('\r');
-			if (crmod) {
-				TTYADD('\n');
-			}
-		    }
-		} else {
-		    telrcv_state = TS_CR;
-		    TTYADD('\r');
-		    if (crmod) {
-			    TTYADD('\n');
-		    }
-		}
-	    } else {
-		TTYADD(c);
-	    }
-	    continue;
-
-	case TS_IAC:
-process_iac:
-	    switch (c) {
-
-	    case WILL:
-		telrcv_state = TS_WILL;
-		continue;
-
-	    case WONT:
-		telrcv_state = TS_WONT;
-		continue;
-
-	    case DO:
-		telrcv_state = TS_DO;
-		continue;
-
-	    case DONT:
-		telrcv_state = TS_DONT;
-		continue;
-
-	    case DM:
-		    /*
-		     * We may have missed an urgent notification,
-		     * so make sure we flush whatever is in the
-		     * buffer currently.
-		     */
-		printoption("RCVD", IAC, DM);
-		SYNCHing = 1;
-		(void) ttyflush(1);
-		SYNCHing = stilloob();
-		settimer(gotDM);
-		break;
-
-	    case SB:
-		SB_CLEAR();
-		telrcv_state = TS_SB;
-		continue;
-
-	    case IAC:
-		TTYADD(IAC);
-		break;
-
-	    case NOP:
-	    case GA:
-	    default:
-		printoption("RCVD", IAC, c);
-		break;
-	    }
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_WILL:
-	    printoption("RCVD", WILL, c);
-	    willoption(c);
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_WONT:
-	    printoption("RCVD", WONT, c);
-	    wontoption(c);
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_DO:
-	    printoption("RCVD", DO, c);
-	    dooption(c);
-	    if (c == TELOPT_NAWS) {
-		sendnaws();
-	    } else if (c == TELOPT_LFLOW) {
-		localflow = 1;
-		setcommandmode();
-		setconnmode(0);
-	    }
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_DONT:
-	    printoption("RCVD", DONT, c);
-	    dontoption(c);
-	    flushline = 1;
-	    setconnmode(0);	/* set new tty mode (maybe) */
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_SB:
-	    if (c == IAC) {
-		telrcv_state = TS_SE;
-	    } else {
-		SB_ACCUM(c);
-	    }
-	    continue;
-
-	case TS_SE:
-	    if (c != SE) {
-		if (c != IAC) {
-		    /*
-		     * This is an error.  We only expect to get
-		     * "IAC IAC" or "IAC SE".  Several things may
-		     * have happend.  An IAC was not doubled, the
-		     * IAC SE was left off, or another option got
-		     * inserted into the suboption are all possibilities.
-		     * If we assume that the IAC was not doubled,
-		     * and really the IAC SE was left off, we could
-		     * get into an infinate loop here.  So, instead,
-		     * we terminate the suboption, and process the
-		     * partial suboption if we can.
-		     */
-		    SB_ACCUM(IAC);
-		    SB_ACCUM(c);
-		    subpointer -= 2;
-		    SB_TERM();
-
-		    printoption("In SUBOPTION processing, RCVD", IAC, c);
-		    suboption();	/* handle sub-option */
-		    telrcv_state = TS_IAC;
-		    goto process_iac;
-		}
-		SB_ACCUM(c);
-		telrcv_state = TS_SB;
-	    } else {
-		SB_ACCUM(IAC);
-		SB_ACCUM(SE);
-		subpointer -= 2;
-		SB_TERM();
-		suboption();	/* handle sub-option */
-		telrcv_state = TS_DATA;
-	    }
-	}
-    }
-    if (count)
-	ring_consumed(&netiring, count);
-    return returnValue||count;
-}
-
-static int bol = 1, local = 0;
-
-int
-rlogin_susp(void)
-{
-    if (local) {
-	local = 0;
-	bol = 1;
-	command(0, "z\n", 2);
-	return(1);
-    }
-    return(0);
-}
-
-static int
-telsnd(void)
-{
-    int tcc;
-    int count;
-    int returnValue = 0;
-    unsigned char *tbp;
-
-    tcc = 0;
-    count = 0;
-    while (NETROOM() > 2) {
-	int sc;
-	int c;
-
-	if (tcc == 0) {
-	    if (count) {
-		ring_consumed(&ttyiring, count);
-		returnValue = 1;
-		count = 0;
-	    }
-	    tbp = ttyiring.consume;
-	    tcc = ring_full_consecutive(&ttyiring);
-	    if (tcc == 0) {
-		break;
-	    }
-	}
-	c = *tbp++ & 0xff, sc = strip(c), tcc--; count++;
-	if (rlogin != _POSIX_VDISABLE) {
-		if (bol) {
-			bol = 0;
-			if (sc == rlogin) {
-				local = 1;
-				continue;
-			}
-		} else if (local) {
-			local = 0;
-			if (sc == '.' || c == termEofChar) {
-				bol = 1;
-				command(0, "close\n", 6);
-				continue;
-			}
-			if (sc == termSuspChar) {
-				bol = 1;
-				command(0, "z\n", 2);
-				continue;
-			}
-			if (sc == escape) {
-				command(0, tbp, tcc);
-				bol = 1;
-				count += tcc;
-				tcc = 0;
-				flushline = 1;
-				break;
-			}
-			if (sc != rlogin) {
-				++tcc;
-				--tbp;
-				--count;
-				c = sc = rlogin;
-			}
-		}
-		if ((sc == '\n') || (sc == '\r'))
-			bol = 1;
-	} else if (escape != _POSIX_VDISABLE && sc == escape) {
-	    /*
-	     * Double escape is a pass through of a single escape character.
-	     */
-	    if (tcc && strip(*tbp) == escape) {
-		tbp++;
-		tcc--;
-		count++;
-		bol = 0;
-	    } else {
-		command(0, (char *)tbp, tcc);
-		bol = 1;
-		count += tcc;
-		tcc = 0;
-		flushline = 1;
-		break;
-	    }
-	} else
-	    bol = 0;
-#ifdef	KLUDGELINEMODE
-	if (kludgelinemode && (globalmode&MODE_EDIT) && (sc == echoc)) {
-	    if (tcc > 0 && strip(*tbp) == echoc) {
-		tcc--; tbp++; count++;
-	    } else {
-		dontlecho = !dontlecho;
-		settimer(echotoggle);
-		setconnmode(0);
-		flushline = 1;
-		break;
-	    }
-	}
-#endif
-	if (MODE_LOCAL_CHARS(globalmode)) {
-	    if (TerminalSpecialChars(sc) == 0) {
-		bol = 1;
-		break;
-	    }
-	}
-	if (my_want_state_is_wont(TELOPT_BINARY)) {
-	    switch (c) {
-	    case '\n':
-		    /*
-		     * If we are in CRMOD mode (\r ==> \n)
-		     * on our local machine, then probably
-		     * a newline (unix) is CRLF (TELNET).
-		     */
-		if (MODE_LOCAL_CHARS(globalmode)) {
-		    NETADD('\r');
-		}
-		NETADD('\n');
-		bol = flushline = 1;
-		break;
-	    case '\r':
-		if (!crlf) {
-		    NET2ADD('\r', '\0');
-		} else {
-		    NET2ADD('\r', '\n');
-		}
-		bol = flushline = 1;
-		break;
-	    case IAC:
-		NET2ADD(IAC, IAC);
-		break;
-	    default:
-		NETADD(c);
-		break;
-	    }
-	} else if (c == IAC) {
-	    NET2ADD(IAC, IAC);
-	} else {
-	    NETADD(c);
-	}
-    }
-    if (count)
-	ring_consumed(&ttyiring, count);
-    return returnValue||count;		/* Non-zero if we did anything */
-}
-
-/*
- * Scheduler()
- *
- * Try to do something.
- *
- * If we do something useful, return 1; else return 0.
- *
- */
-
-static int
-Scheduler(int block)
-{
-		/* One wants to be a bit careful about setting returnValue
-		 * to one, since a one implies we did some useful work,
-		 * and therefore probably won't be called to block next
-		 */
-    int returnValue;
-    int netin, netout, netex, ttyin, ttyout;
-
-    /* Decide which rings should be processed */
-
-    netout = ring_full_count(&netoring) &&
-	    (flushline ||
-		(my_want_state_is_wont(TELOPT_LINEMODE)
-#ifdef	KLUDGELINEMODE
-			&& (!kludgelinemode || my_want_state_is_do(TELOPT_SGA))
-#endif
-		) ||
-			my_want_state_is_will(TELOPT_BINARY));
-    ttyout = ring_full_count(&ttyoring);
-
-    ttyin = ring_empty_count(&ttyiring) && (clienteof == 0);
-
-    netin = !ISend && ring_empty_count(&netiring);
-
-    netex = !SYNCHing;
-
-    /* Call to system code to process rings */
-
-    returnValue = process_rings(netin, netout, netex, ttyin, ttyout, !block);
-
-    /* Now, look at the input rings, looking for work to do. */
-
-    if (ring_full_count(&ttyiring)) {
-	    returnValue |= telsnd();
-    }
-
-    if (ring_full_count(&netiring)) {
-	returnValue |= telrcv();
-    }
-    return returnValue;
-}
-
-#ifdef	AUTHENTICATION
-#define __unusedhere
-#else
-#define __unusedhere __unused
-#endif
-/*
- * Select from tty and network...
- */
-void
-telnet(char *user __unusedhere)
-{
-    sys_telnet_init();
-
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-    {
-	static char local_host[256] = { 0 };
-
-	if (!local_host[0]) {
-		gethostname(local_host, sizeof(local_host));
-		local_host[sizeof(local_host)-1] = 0;
-	}
-	auth_encrypt_init(local_host, hostname, "TELNET", 0);
-	auth_encrypt_user(user);
-    }
-#endif
-#endif
-    if (telnetport) {
-#ifdef	AUTHENTICATION
-	if (autologin)
-		send_will(TELOPT_AUTHENTICATION, 1);
-#endif
-#ifdef	ENCRYPTION
-	send_do(TELOPT_ENCRYPT, 1);
-	send_will(TELOPT_ENCRYPT, 1);
-#endif	/* ENCRYPTION */
-	send_do(TELOPT_SGA, 1);
-	send_will(TELOPT_TTYPE, 1);
-	send_will(TELOPT_NAWS, 1);
-	send_will(TELOPT_TSPEED, 1);
-	send_will(TELOPT_LFLOW, 1);
-	send_will(TELOPT_LINEMODE, 1);
-	send_will(TELOPT_NEW_ENVIRON, 1);
-	send_do(TELOPT_STATUS, 1);
-	if (env_getvalue("DISPLAY"))
-	    send_will(TELOPT_XDISPLOC, 1);
-	if (eight)
-	    tel_enter_binary(eight);
-    }
-
-    for (;;) {
-	int schedValue;
-
-	while ((schedValue = Scheduler(0)) != 0) {
-	    if (schedValue == -1) {
-		setcommandmode();
-		return;
-	    }
-	}
-
-	if (Scheduler(1) == -1) {
-	    setcommandmode();
-	    return;
-	}
-    }
-}
-
-#if	0	/* XXX - this not being in is a bug */
-/*
- * nextitem()
- *
- *	Return the address of the next "item" in the TELNET data
- * stream.  This will be the address of the next character if
- * the current address is a user data character, or it will
- * be the address of the character following the TELNET command
- * if the current address is a TELNET IAC ("I Am a Command")
- * character.
- */
-
-static char *
-nextitem(char *current)
-{
-    if ((*current&0xff) != IAC) {
-	return current+1;
-    }
-    switch (*(current+1)&0xff) {
-    case DO:
-    case DONT:
-    case WILL:
-    case WONT:
-	return current+3;
-    case SB:		/* loop forever looking for the SE */
-	{
-	    char *look = current+2;
-
-	    for (;;) {
-		if ((*look++&0xff) == IAC) {
-		    if ((*look++&0xff) == SE) {
-			return look;
-		    }
-		}
-	    }
-	}
-    default:
-	return current+2;
-    }
-}
-#endif	/* 0 */
-
-/*
- * netclear()
- *
- *	We are about to do a TELNET SYNCH operation.  Clear
- * the path to the network.
- *
- *	Things are a bit tricky since we may have sent the first
- * byte or so of a previous TELNET command into the network.
- * So, we have to scan the network buffer from the beginning
- * until we are up to where we want to be.
- *
- *	A side effect of what we do, just to keep things
- * simple, is to clear the urgent data pointer.  The principal
- * caller should be setting the urgent data pointer AFTER calling
- * us in any case.
- */
-
-static void
-netclear(void)
-{
-	/* Deleted */
-}
-
-/*
- * These routines add various telnet commands to the data stream.
- */
-
-static void
-doflush(void)
-{
-    NET2ADD(IAC, DO);
-    NETADD(TELOPT_TM);
-    flushline = 1;
-    flushout = 1;
-    (void) ttyflush(1);			/* Flush/drop output */
-    /* do printoption AFTER flush, otherwise the output gets tossed... */
-    printoption("SENT", DO, TELOPT_TM);
-}
-
-void
-xmitAO(void)
-{
-    NET2ADD(IAC, AO);
-    printoption("SENT", IAC, AO);
-    if (autoflush) {
-	doflush();
-    }
-}
-
-void
-xmitEL(void)
-{
-    NET2ADD(IAC, EL);
-    printoption("SENT", IAC, EL);
-}
-
-void
-xmitEC(void)
-{
-    NET2ADD(IAC, EC);
-    printoption("SENT", IAC, EC);
-}
-
-int
-dosynch(char *ch __unused)
-{
-    netclear();			/* clear the path to the network */
-    NETADD(IAC);
-    setneturg();
-    NETADD(DM);
-    printoption("SENT", IAC, DM);
-    return 1;
-}
-
-int want_status_response = 0;
-
-int
-get_status(char *ch __unused)
-{
-    unsigned char tmp[16];
-    unsigned char *cp;
-
-    if (my_want_state_is_dont(TELOPT_STATUS)) {
-	printf("Remote side does not support STATUS option\n");
-	return 0;
-    }
-    cp = tmp;
-
-    *cp++ = IAC;
-    *cp++ = SB;
-    *cp++ = TELOPT_STATUS;
-    *cp++ = TELQUAL_SEND;
-    *cp++ = IAC;
-    *cp++ = SE;
-    if (NETROOM() >= cp - tmp) {
-	ring_supply_data(&netoring, tmp, cp-tmp);
-	printsub('>', tmp+2, cp - tmp - 2);
-    }
-    ++want_status_response;
-    return 1;
-}
-
-void
-intp(void)
-{
-    NET2ADD(IAC, IP);
-    printoption("SENT", IAC, IP);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendbrk(void)
-{
-    NET2ADD(IAC, BREAK);
-    printoption("SENT", IAC, BREAK);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendabort(void)
-{
-    NET2ADD(IAC, ABORT);
-    printoption("SENT", IAC, ABORT);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendsusp(void)
-{
-    NET2ADD(IAC, SUSP);
-    printoption("SENT", IAC, SUSP);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendeof(void)
-{
-    NET2ADD(IAC, xEOF);
-    printoption("SENT", IAC, xEOF);
-}
-
-void
-sendayt(void)
-{
-    NET2ADD(IAC, AYT);
-    printoption("SENT", IAC, AYT);
-}
-
-/*
- * Send a window size update to the remote system.
- */
-
-void
-sendnaws(void)
-{
-    long rows, cols;
-    unsigned char tmp[16];
-    unsigned char *cp;
-
-    if (my_state_is_wont(TELOPT_NAWS))
-	return;
-
-#define	PUTSHORT(cp, x) { if ((*cp++ = ((x)>>8)&0xff) == IAC) *cp++ = IAC; \
-			    if ((*cp++ = ((x))&0xff) == IAC) *cp++ = IAC; }
-
-    if (TerminalWindowSize(&rows, &cols) == 0) {	/* Failed */
-	return;
-    }
-
-    cp = tmp;
-
-    *cp++ = IAC;
-    *cp++ = SB;
-    *cp++ = TELOPT_NAWS;
-    PUTSHORT(cp, cols);
-    PUTSHORT(cp, rows);
-    *cp++ = IAC;
-    *cp++ = SE;
-    if (NETROOM() >= cp - tmp) {
-	ring_supply_data(&netoring, tmp, cp-tmp);
-	printsub('>', tmp+2, cp - tmp - 2);
-    }
-}
-
-void
-tel_enter_binary(int rw)
-{
-    if (rw&1)
-	send_do(TELOPT_BINARY, 1);
-    if (rw&2)
-	send_will(TELOPT_BINARY, 1);
-}
-
-void
-tel_leave_binary(int rw)
-{
-    if (rw&1)
-	send_dont(TELOPT_BINARY, 1);
-    if (rw&2)
-	send_wont(TELOPT_BINARY, 1);
-}
diff --git a/crypto/telnet/telnet/terminal.c b/crypto/telnet/telnet/terminal.c
deleted file mode 100644
index 3dda1c5bf886..000000000000
--- a/crypto/telnet/telnet/terminal.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)terminal.c	8.2 (Berkeley) 2/16/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <arpa/telnet.h>
-#include <sys/types.h>
-
-#include <stdlib.h>
-
-#include "ring.h"
-
-#include "externs.h"
-#include "types.h"
-
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-Ring		ttyoring, ttyiring;
-unsigned char	ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ];
-
-int termdata;			/* Debugging flag */
-
-#ifdef	USE_TERMIO
-# ifndef VDISCARD
-cc_t termFlushChar;
-# endif
-# ifndef VLNEXT
-cc_t termLiteralNextChar;
-# endif
-# ifndef VSUSP
-cc_t termSuspChar;
-# endif
-# ifndef VWERASE
-cc_t termWerasChar;
-# endif
-# ifndef VREPRINT
-cc_t termRprntChar;
-# endif
-# ifndef VSTART
-cc_t termStartChar;
-# endif
-# ifndef VSTOP
-cc_t termStopChar;
-# endif
-# ifndef VEOL
-cc_t termForw1Char;
-# endif
-# ifndef VEOL2
-cc_t termForw2Char;
-# endif
-# ifndef VSTATUS
-cc_t termAytChar;
-# endif
-#else
-cc_t termForw2Char;
-cc_t termAytChar;
-#endif
-
-/*
- * initialize the terminal data structures.
- */
-
-void
-init_terminal(void)
-{
-    if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) {
-	exit(1);
-    }
-    if (ring_init(&ttyiring, ttyibuf, sizeof ttyibuf) != 1) {
-	exit(1);
-    }
-    autoflush = TerminalAutoFlush();
-}
-
-/*
- *		Send as much data as possible to the terminal.
- *
- *		Return value:
- *			-1: No useful work done, data waiting to go out.
- *			 0: No data was waiting, so nothing was done.
- *			 1: All waiting data was written out.
- *			 n: All data - n was written out.
- */
-
-int
-ttyflush(int drop)
-{
-    int n, n0, n1;
-
-    n0 = ring_full_count(&ttyoring);
-    if ((n1 = n = ring_full_consecutive(&ttyoring)) > 0) {
-	if (drop) {
-	    TerminalFlushOutput();
-	    /* we leave 'n' alone! */
-	} else {
-	    n = TerminalWrite(ttyoring.consume, n);
-	}
-    }
-    if (n > 0) {
-	if (termdata && n) {
-	    Dump('>', ttyoring.consume, n);
-	}
-	/*
-	 * If we wrote everything, and the full count is
-	 * larger than what we wrote, then write the
-	 * rest of the buffer.
-	 */
-	if (n1 == n && n0 > n) {
-		n1 = n0 - n;
-		if (!drop)
-			n1 = TerminalWrite(ttyoring.bottom, n1);
-		if (n1 > 0)
-			n += n1;
-	}
-	ring_consumed(&ttyoring, n);
-    }
-    if (n < 0)
-	return -1;
-    if (n == n0) {
-	if (n0)
-	    return -1;
-	return 0;
-    }
-    return n0 - n + 1;
-}
-
-
-/*
- * These routines decides on what the mode should be (based on the values
- * of various global variables).
- */
-
-
-int
-getconnmode(void)
-{
-    extern int linemode;
-    int mode = 0;
-#ifdef	KLUDGELINEMODE
-    extern int kludgelinemode;
-#endif
-
-    if (my_want_state_is_dont(TELOPT_ECHO))
-	mode |= MODE_ECHO;
-
-    if (localflow)
-	mode |= MODE_FLOW;
-
-    if (my_want_state_is_will(TELOPT_BINARY))
-	mode |= MODE_INBIN;
-
-    if (his_want_state_is_will(TELOPT_BINARY))
-	mode |= MODE_OUTBIN;
-
-#ifdef	KLUDGELINEMODE
-    if (kludgelinemode) {
-	if (my_want_state_is_dont(TELOPT_SGA)) {
-	    mode |= (MODE_TRAPSIG|MODE_EDIT);
-	    if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) {
-		mode &= ~MODE_ECHO;
-	    }
-	}
-	return(mode);
-    }
-#endif
-    if (my_want_state_is_will(TELOPT_LINEMODE))
-	mode |= linemode;
-    return(mode);
-}
-
-void
-setconnmode(int force)
-{
-#ifdef	ENCRYPTION
-    static int enc_passwd = 0;
-#endif	/* ENCRYPTION */
-    int newmode;
-
-    newmode = getconnmode()|(force?MODE_FORCE:0);
-
-    TerminalNewMode(newmode);
-
-#ifdef  ENCRYPTION
-    if ((newmode & (MODE_ECHO|MODE_EDIT)) == MODE_EDIT) {
-	if (my_want_state_is_will(TELOPT_ENCRYPT)
-				&& (enc_passwd == 0) && !encrypt_output) {
-	    encrypt_request_start(0, 0);
-	    enc_passwd = 1;
-	}
-    } else {
-	if (enc_passwd) {
-	    encrypt_request_end();
-	    enc_passwd = 0;
-	}
-    }
-#endif	/* ENCRYPTION */
-
-}
-
-void
-setcommandmode(void)
-{
-    TerminalNewMode(-1);
-}
diff --git a/crypto/telnet/telnet/types.h b/crypto/telnet/telnet/types.h
deleted file mode 100644
index 191d311fd154..000000000000
--- a/crypto/telnet/telnet/types.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)types.h	8.1 (Berkeley) 6/6/93
- */
-
-typedef struct {
-    char *modedescriptions;
-    char modetype;
-} Modelist;
-
-extern Modelist modelist[];
-
-typedef struct {
-    int
-	system,			/* what the current time is */
-	echotoggle,		/* last time user entered echo character */
-	modenegotiated,		/* last time operating mode negotiated */
-	didnetreceive,		/* last time we read data from network */
-	gotDM;			/* when did we last see a data mark */
-} Clocks;
-
-extern Clocks clocks;
diff --git a/crypto/telnet/telnet/utilities.c b/crypto/telnet/telnet/utilities.c
deleted file mode 100644
index b0cfe37bbabd..000000000000
--- a/crypto/telnet/telnet/utilities.c
+++ /dev/null
@@ -1,912 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)utilities.c	8.3 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#define	TELOPTS
-#define	TELCMDS
-#define	SLC_NAMES
-#include <arpa/telnet.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "general.h"
-
-#include "fdset.h"
-
-#include "ring.h"
-
-#include "defines.h"
-
-#include "externs.h"
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-FILE	*NetTrace = 0;		/* Not in bss, since needs to stay */
-int	prettydump;
-
-/*
- * upcase()
- *
- *	Upcase (in place) the argument.
- */
-
-void
-upcase(char *argument)
-{
-    int c;
-
-    while ((c = *argument) != 0) {
-	if (islower(c)) {
-	    *argument = toupper(c);
-	}
-	argument++;
-    }
-}
-
-/*
- * SetSockOpt()
- *
- * Compensate for differences in 4.2 and 4.3 systems.
- */
-
-int
-SetSockOpt(int fd, int level, int option, int yesno)
-{
-    return setsockopt(fd, level, option,
-				(char *)&yesno, sizeof yesno);
-}
-
-/*
- * The following are routines used to print out debugging information.
- */
-
-unsigned char NetTraceFile[256] = "(standard output)";
-
-void
-SetNetTrace(char *file)
-{
-    if (NetTrace && NetTrace != stdout)
-	fclose(NetTrace);
-    if (file  && (strcmp(file, "-") != 0)) {
-	NetTrace = fopen(file, "w");
-	if (NetTrace) {
-	    strcpy((char *)NetTraceFile, file);
-	    return;
-	}
-	fprintf(stderr, "Cannot open %s.\n", file);
-    }
-    NetTrace = stdout;
-    strcpy((char *)NetTraceFile, "(standard output)");
-}
-
-void
-Dump(char direction, unsigned char *buffer, int length)
-{
-#   define BYTES_PER_LINE	32
-#   define min(x,y)	((x<y)? x:y)
-    unsigned char *pThis;
-    int offset;
-
-    offset = 0;
-
-    while (length) {
-	/* print one line */
-	fprintf(NetTrace, "%c 0x%x\t", direction, offset);
-	pThis = buffer;
-	if (prettydump) {
-	    buffer = buffer + min(length, BYTES_PER_LINE/2);
-	    while (pThis < buffer) {
-		fprintf(NetTrace, "%c%.2x",
-		    (((*pThis)&0xff) == 0xff) ? '*' : ' ',
-		    (*pThis)&0xff);
-		pThis++;
-	    }
-	    length -= BYTES_PER_LINE/2;
-	    offset += BYTES_PER_LINE/2;
-	} else {
-	    buffer = buffer + min(length, BYTES_PER_LINE);
-	    while (pThis < buffer) {
-		fprintf(NetTrace, "%.2x", (*pThis)&0xff);
-		pThis++;
-	    }
-	    length -= BYTES_PER_LINE;
-	    offset += BYTES_PER_LINE;
-	}
-	if (NetTrace == stdout) {
-	    fprintf(NetTrace, "\r\n");
-	} else {
-	    fprintf(NetTrace, "\n");
-	}
-	if (length < 0) {
-	    fflush(NetTrace);
-	    return;
-	}
-	/* find next unique line */
-    }
-    fflush(NetTrace);
-}
-
-
-void
-printoption(const char *direction, int cmd, int option)
-{
-	if (!showoptions)
-		return;
-	if (cmd == IAC) {
-		if (TELCMD_OK(option))
-		    fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option));
-		else
-		    fprintf(NetTrace, "%s IAC %d", direction, option);
-	} else {
-		const char *fmt;
-		fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" :
-			(cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0;
-		if (fmt) {
-		    fprintf(NetTrace, "%s %s ", direction, fmt);
-		    if (TELOPT_OK(option))
-			fprintf(NetTrace, "%s", TELOPT(option));
-		    else if (option == TELOPT_EXOPL)
-			fprintf(NetTrace, "EXOPL");
-		    else
-			fprintf(NetTrace, "%d", option);
-		} else
-		    fprintf(NetTrace, "%s %d %d", direction, cmd, option);
-	}
-	if (NetTrace == stdout) {
-	    fprintf(NetTrace, "\r\n");
-	    fflush(NetTrace);
-	} else {
-	    fprintf(NetTrace, "\n");
-	}
-	return;
-}
-
-void
-optionstatus(void)
-{
-    int i;
-    extern char will_wont_resp[], do_dont_resp[];
-
-    for (i = 0; i < 256; i++) {
-	if (do_dont_resp[i]) {
-	    if (TELOPT_OK(i))
-		printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]);
-	    else if (TELCMD_OK(i))
-		printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]);
-	    else
-		printf("resp DO_DONT %d: %d\n", i,
-				do_dont_resp[i]);
-	    if (my_want_state_is_do(i)) {
-		if (TELOPT_OK(i))
-		    printf("want DO   %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want DO   %s\n", TELCMD(i));
-		else
-		    printf("want DO   %d\n", i);
-	    } else {
-		if (TELOPT_OK(i))
-		    printf("want DONT %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want DONT %s\n", TELCMD(i));
-		else
-		    printf("want DONT %d\n", i);
-	    }
-	} else {
-	    if (my_state_is_do(i)) {
-		if (TELOPT_OK(i))
-		    printf("     DO   %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("     DO   %s\n", TELCMD(i));
-		else
-		    printf("     DO   %d\n", i);
-	    }
-	}
-	if (will_wont_resp[i]) {
-	    if (TELOPT_OK(i))
-		printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]);
-	    else if (TELCMD_OK(i))
-		printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]);
-	    else
-		printf("resp WILL_WONT %d: %d\n",
-				i, will_wont_resp[i]);
-	    if (my_want_state_is_will(i)) {
-		if (TELOPT_OK(i))
-		    printf("want WILL %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want WILL %s\n", TELCMD(i));
-		else
-		    printf("want WILL %d\n", i);
-	    } else {
-		if (TELOPT_OK(i))
-		    printf("want WONT %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want WONT %s\n", TELCMD(i));
-		else
-		    printf("want WONT %d\n", i);
-	    }
-	} else {
-	    if (my_state_is_will(i)) {
-		if (TELOPT_OK(i))
-		    printf("     WILL %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("     WILL %s\n", TELCMD(i));
-		else
-		    printf("     WILL %d\n", i);
-	    }
-	}
-    }
-
-}
-
-void
-printsub(char direction, unsigned char *pointer, int length)
-{
-    int i;
-#ifdef	AUTHENTICATION
-    char buf[512];
-#endif
-    extern int want_status_response;
-
-    if (showoptions || direction == 0 ||
-	(want_status_response && (pointer[0] == TELOPT_STATUS))) {
-	if (direction) {
-	    fprintf(NetTrace, "%s IAC SB ",
-				(direction == '<')? "RCVD":"SENT");
-	    if (length >= 3) {
-		int j;
-
-		i = pointer[length-2];
-		j = pointer[length-1];
-
-		if (i != IAC || j != SE) {
-		    fprintf(NetTrace, "(terminated by ");
-		    if (TELOPT_OK(i))
-			fprintf(NetTrace, "%s ", TELOPT(i));
-		    else if (TELCMD_OK(i))
-			fprintf(NetTrace, "%s ", TELCMD(i));
-		    else
-			fprintf(NetTrace, "%d ", i);
-		    if (TELOPT_OK(j))
-			fprintf(NetTrace, "%s", TELOPT(j));
-		    else if (TELCMD_OK(j))
-			fprintf(NetTrace, "%s", TELCMD(j));
-		    else
-			fprintf(NetTrace, "%d", j);
-		    fprintf(NetTrace, ", not IAC SE!) ");
-		}
-	    }
-	    length -= 2;
-	}
-	if (length < 1) {
-	    fprintf(NetTrace, "(Empty suboption??\?)");
-	    if (NetTrace == stdout)
-		fflush(NetTrace);
-	    return;
-	}
-	switch (pointer[0]) {
-	case TELOPT_TTYPE:
-	    fprintf(NetTrace, "TERMINAL-TYPE ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		fprintf(NetTrace, "SEND");
-		break;
-	    default:
-		fprintf(NetTrace,
-				"- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-	case TELOPT_TSPEED:
-	    fprintf(NetTrace, "TERMINAL-SPEED");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, " IS ");
-		fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2);
-		break;
-	    default:
-		if (pointer[1] == 1)
-		    fprintf(NetTrace, " SEND");
-		else
-		    fprintf(NetTrace, " %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " ?%d?", pointer[i]);
-		break;
-	    }
-	    break;
-
-	case TELOPT_LFLOW:
-	    fprintf(NetTrace, "TOGGLE-FLOW-CONTROL");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case LFLOW_OFF:
-		fprintf(NetTrace, " OFF"); break;
-	    case LFLOW_ON:
-		fprintf(NetTrace, " ON"); break;
-	    case LFLOW_RESTART_ANY:
-		fprintf(NetTrace, " RESTART-ANY"); break;
-	    case LFLOW_RESTART_XON:
-		fprintf(NetTrace, " RESTART-XON"); break;
-	    default:
-		fprintf(NetTrace, " %d (unknown)", pointer[1]);
-	    }
-	    for (i = 2; i < length; i++)
-		fprintf(NetTrace, " ?%d?", pointer[i]);
-	    break;
-
-	case TELOPT_NAWS:
-	    fprintf(NetTrace, "NAWS");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    if (length == 2) {
-		fprintf(NetTrace, " ?%d?", pointer[1]);
-		break;
-	    }
-	    fprintf(NetTrace, " %d %d (%d)",
-		pointer[1], pointer[2],
-		(int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
-	    if (length == 4) {
-		fprintf(NetTrace, " ?%d?", pointer[3]);
-		break;
-	    }
-	    fprintf(NetTrace, " %d %d (%d)",
-		pointer[3], pointer[4],
-		(int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
-	    for (i = 5; i < length; i++)
-		fprintf(NetTrace, " ?%d?", pointer[i]);
-	    break;
-
-#ifdef	AUTHENTICATION
-	case TELOPT_AUTHENTICATION:
-	    fprintf(NetTrace, "AUTHENTICATION");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case TELQUAL_REPLY:
-	    case TELQUAL_IS:
-		fprintf(NetTrace, " %s ", (pointer[1] == TELQUAL_IS) ?
-							"IS" : "REPLY");
-		if (AUTHTYPE_NAME_OK(pointer[2]))
-		    fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[2]));
-		else
-		    fprintf(NetTrace, "%d ", pointer[2]);
-		if (length < 3) {
-		    fprintf(NetTrace, "(partial suboption??\?)");
-		    break;
-		}
-		fprintf(NetTrace, "%s|%s",
-			((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
-			"CLIENT" : "SERVER",
-			((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
-			"MUTUAL" : "ONE-WAY");
-
-		auth_printsub(&pointer[1], length - 1, buf, sizeof(buf));
-		fprintf(NetTrace, "%s", buf);
-		break;
-
-	    case TELQUAL_SEND:
-		i = 2;
-		fprintf(NetTrace, " SEND ");
-		while (i < length) {
-		    if (AUTHTYPE_NAME_OK(pointer[i]))
-			fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[i]));
-		    else
-			fprintf(NetTrace, "%d ", pointer[i]);
-		    if (++i >= length) {
-			fprintf(NetTrace, "(partial suboption??\?)");
-			break;
-		    }
-		    fprintf(NetTrace, "%s|%s ",
-			((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
-							"CLIENT" : "SERVER",
-			((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
-							"MUTUAL" : "ONE-WAY");
-		    ++i;
-		}
-		break;
-
-	    case TELQUAL_NAME:
-		i = 2;
-		fprintf(NetTrace, " NAME \"");
-		while (i < length)
-		    putc(pointer[i++], NetTrace);
-		putc('"', NetTrace);
-		break;
-
-	    default:
-		    for (i = 2; i < length; i++)
-			fprintf(NetTrace, " ?%d?", pointer[i]);
-		    break;
-	    }
-	    break;
-#endif
-
-#ifdef	ENCRYPTION
-	case TELOPT_ENCRYPT:
-	    fprintf(NetTrace, "ENCRYPT");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case ENCRYPT_START:
-		fprintf(NetTrace, " START");
-		break;
-
-	    case ENCRYPT_END:
-		fprintf(NetTrace, " END");
-		break;
-
-	    case ENCRYPT_REQSTART:
-		fprintf(NetTrace, " REQUEST-START");
-		break;
-
-	    case ENCRYPT_REQEND:
-		fprintf(NetTrace, " REQUEST-END");
-		break;
-
-	    case ENCRYPT_IS:
-	    case ENCRYPT_REPLY:
-		fprintf(NetTrace, " %s ", (pointer[1] == ENCRYPT_IS) ?
-							"IS" : "REPLY");
-		if (length < 3) {
-		    fprintf(NetTrace, " (partial suboption??\?)");
-		    break;
-		}
-		if (ENCTYPE_NAME_OK(pointer[2]))
-		    fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[2]));
-		else
-		    fprintf(NetTrace, " %d (unknown)", pointer[2]);
-
-		encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf));
-		fprintf(NetTrace, "%s", buf);
-		break;
-
-	    case ENCRYPT_SUPPORT:
-		i = 2;
-		fprintf(NetTrace, " SUPPORT ");
-		while (i < length) {
-		    if (ENCTYPE_NAME_OK(pointer[i]))
-			fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[i]));
-		    else
-			fprintf(NetTrace, "%d ", pointer[i]);
-		    i++;
-		}
-		break;
-
-	    case ENCRYPT_ENC_KEYID:
-		fprintf(NetTrace, " ENC_KEYID ");
-		goto encommon;
-
-	    case ENCRYPT_DEC_KEYID:
-		fprintf(NetTrace, " DEC_KEYID ");
-		goto encommon;
-
-	    default:
-		fprintf(NetTrace, " %d (unknown)", pointer[1]);
-	    encommon:
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " %d", pointer[i]);
-		break;
-	    }
-	    break;
-#endif	/* ENCRYPTION */
-
-	case TELOPT_LINEMODE:
-	    fprintf(NetTrace, "LINEMODE ");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case WILL:
-		fprintf(NetTrace, "WILL ");
-		goto common;
-	    case WONT:
-		fprintf(NetTrace, "WONT ");
-		goto common;
-	    case DO:
-		fprintf(NetTrace, "DO ");
-		goto common;
-	    case DONT:
-		fprintf(NetTrace, "DONT ");
-	    common:
-		if (length < 3) {
-		    fprintf(NetTrace, "(no option??\?)");
-		    break;
-		}
-		switch (pointer[2]) {
-		case LM_FORWARDMASK:
-		    fprintf(NetTrace, "Forward Mask");
-		    for (i = 3; i < length; i++)
-			fprintf(NetTrace, " %x", pointer[i]);
-		    break;
-		default:
-		    fprintf(NetTrace, "%d (unknown)", pointer[2]);
-		    for (i = 3; i < length; i++)
-			fprintf(NetTrace, " %d", pointer[i]);
-		    break;
-		}
-		break;
-
-	    case LM_SLC:
-		fprintf(NetTrace, "SLC");
-		for (i = 2; i < length - 2; i += 3) {
-		    if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
-			fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC]));
-		    else
-			fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]);
-		    switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
-		    case SLC_NOSUPPORT:
-			fprintf(NetTrace, " NOSUPPORT"); break;
-		    case SLC_CANTCHANGE:
-			fprintf(NetTrace, " CANTCHANGE"); break;
-		    case SLC_VARIABLE:
-			fprintf(NetTrace, " VARIABLE"); break;
-		    case SLC_DEFAULT:
-			fprintf(NetTrace, " DEFAULT"); break;
-		    }
-		    fprintf(NetTrace, "%s%s%s",
-			pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
-		    if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
-						SLC_FLUSHOUT| SLC_LEVELBITS))
-			fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]);
-		    fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]);
-		    if ((pointer[i+SLC_VALUE] == IAC) &&
-			(pointer[i+SLC_VALUE+1] == IAC))
-				i++;
-		}
-		for (; i < length; i++)
-		    fprintf(NetTrace, " ?%d?", pointer[i]);
-		break;
-
-	    case LM_MODE:
-		fprintf(NetTrace, "MODE ");
-		if (length < 3) {
-		    fprintf(NetTrace, "(no mode??\?)");
-		    break;
-		}
-		{
-		    char tbuf[64];
-		    sprintf(tbuf, "%s%s%s%s%s",
-			pointer[2]&MODE_EDIT ? "|EDIT" : "",
-			pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
-			pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
-			pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
-			pointer[2]&MODE_ACK ? "|ACK" : "");
-		    fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0");
-		}
-		if (pointer[2]&~(MODE_MASK))
-		    fprintf(NetTrace, " (0x%x)", pointer[2]);
-		for (i = 3; i < length; i++)
-		    fprintf(NetTrace, " ?0x%x?", pointer[i]);
-		break;
-	    default:
-		fprintf(NetTrace, "%d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " %d", pointer[i]);
-	    }
-	    break;
-
-	case TELOPT_STATUS: {
-	    const char *cp;
-	    int j, k;
-
-	    fprintf(NetTrace, "STATUS");
-
-	    switch (pointer[1]) {
-	    default:
-		if (pointer[1] == TELQUAL_SEND)
-		    fprintf(NetTrace, " SEND");
-		else
-		    fprintf(NetTrace, " %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " ?%d?", pointer[i]);
-		break;
-	    case TELQUAL_IS:
-		if (--want_status_response < 0)
-		    want_status_response = 0;
-		if (NetTrace == stdout)
-		    fprintf(NetTrace, " IS\r\n");
-		else
-		    fprintf(NetTrace, " IS\n");
-
-		for (i = 2; i < length; i++) {
-		    switch(pointer[i]) {
-		    case DO:	cp = "DO"; goto common2;
-		    case DONT:	cp = "DONT"; goto common2;
-		    case WILL:	cp = "WILL"; goto common2;
-		    case WONT:	cp = "WONT"; goto common2;
-		    common2:
-			i++;
-			if (TELOPT_OK((int)pointer[i]))
-			    fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i]));
-			else
-			    fprintf(NetTrace, " %s %d", cp, pointer[i]);
-
-			if (NetTrace == stdout)
-			    fprintf(NetTrace, "\r\n");
-			else
-			    fprintf(NetTrace, "\n");
-			break;
-
-		    case SB:
-			fprintf(NetTrace, " SB ");
-			i++;
-			j = k = i;
-			while (j < length) {
-			    if (pointer[j] == SE) {
-				if (j+1 == length)
-				    break;
-				if (pointer[j+1] == SE)
-				    j++;
-				else
-				    break;
-			    }
-			    pointer[k++] = pointer[j++];
-			}
-			printsub(0, &pointer[i], k - i);
-			if (i < length) {
-			    fprintf(NetTrace, " SE");
-			    i = j;
-			} else
-			    i = j - 1;
-
-			if (NetTrace == stdout)
-			    fprintf(NetTrace, "\r\n");
-			else
-			    fprintf(NetTrace, "\n");
-
-			break;
-
-		    default:
-			fprintf(NetTrace, " %d", pointer[i]);
-			break;
-		    }
-		}
-		break;
-	    }
-	    break;
-	  }
-
-	case TELOPT_XDISPLOC:
-	    fprintf(NetTrace, "X-DISPLAY-LOCATION ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		fprintf(NetTrace, "SEND");
-		break;
-	    default:
-		fprintf(NetTrace, "- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-
-	case TELOPT_NEW_ENVIRON:
-	    fprintf(NetTrace, "NEW-ENVIRON ");
-#ifdef	OLD_ENVIRON
-	    goto env_common1;
-	case TELOPT_OLD_ENVIRON:
-	    fprintf(NetTrace, "OLD-ENVIRON");
-	env_common1:
-#endif
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, "IS ");
-		goto env_common;
-	    case TELQUAL_SEND:
-		fprintf(NetTrace, "SEND ");
-		goto env_common;
-	    case TELQUAL_INFO:
-		fprintf(NetTrace, "INFO ");
-	    env_common:
-		{
-		    int noquote = 2;
-#if defined(ENV_HACK) && defined(OLD_ENVIRON)
-		    extern int old_env_var, old_env_value;
-#endif
-		    for (i = 2; i < length; i++ ) {
-			switch (pointer[i]) {
-			case NEW_ENV_VALUE:
-#ifdef OLD_ENVIRON
-		     /*	case NEW_ENV_OVAR: */
-			    if (pointer[0] == TELOPT_OLD_ENVIRON) {
-# ifdef	ENV_HACK
-				if (old_env_var == OLD_ENV_VALUE)
-				    fprintf(NetTrace, "\" (VALUE) " + noquote);
-				else
-# endif
-				    fprintf(NetTrace, "\" VAR " + noquote);
-			    } else
-#endif /* OLD_ENVIRON */
-				fprintf(NetTrace, "\" VALUE " + noquote);
-			    noquote = 2;
-			    break;
-
-			case NEW_ENV_VAR:
-#ifdef OLD_ENVIRON
-		     /* case OLD_ENV_VALUE: */
-			    if (pointer[0] == TELOPT_OLD_ENVIRON) {
-# ifdef	ENV_HACK
-				if (old_env_value == OLD_ENV_VAR)
-				    fprintf(NetTrace, "\" (VAR) " + noquote);
-				else
-# endif
-				    fprintf(NetTrace, "\" VALUE " + noquote);
-			    } else
-#endif /* OLD_ENVIRON */
-				fprintf(NetTrace, "\" VAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_ESC:
-			    fprintf(NetTrace, "\" ESC " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_USERVAR:
-			    fprintf(NetTrace, "\" USERVAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			default:
-			    if (isprint(pointer[i]) && pointer[i] != '"') {
-				if (noquote) {
-				    putc('"', NetTrace);
-				    noquote = 0;
-				}
-				putc(pointer[i], NetTrace);
-			    } else {
-				fprintf(NetTrace, "\" %03o " + noquote,
-							pointer[i]);
-				noquote = 2;
-			    }
-			    break;
-			}
-		    }
-		    if (!noquote)
-			putc('"', NetTrace);
-		    break;
-		}
-	    }
-	    break;
-
-	default:
-	    if (TELOPT_OK(pointer[0]))
-		fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0]));
-	    else
-		fprintf(NetTrace, "%d (unknown)", pointer[0]);
-	    for (i = 1; i < length; i++)
-		fprintf(NetTrace, " %d", pointer[i]);
-	    break;
-	}
-	if (direction) {
-	    if (NetTrace == stdout)
-		fprintf(NetTrace, "\r\n");
-	    else
-		fprintf(NetTrace, "\n");
-	}
-	if (NetTrace == stdout)
-	    fflush(NetTrace);
-    }
-}
-
-/* EmptyTerminal - called to make sure that the terminal buffer is empty.
- *			Note that we consider the buffer to run all the
- *			way to the kernel (thus the select).
- */
-
-static void
-EmptyTerminal(void)
-{
-    fd_set	o;
-
-    FD_ZERO(&o);
-
-    if (TTYBYTES() == 0) {
-	FD_SET(tout, &o);
-	(void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
-			(struct timeval *) 0);	/* wait for TTLOWAT */
-    } else {
-	while (TTYBYTES()) {
-	    (void) ttyflush(0);
-	    FD_SET(tout, &o);
-	    (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
-				(struct timeval *) 0);	/* wait for TTLOWAT */
-	}
-    }
-}
-
-static void
-SetForExit(void)
-{
-    setconnmode(0);
-    do {
-	(void)telrcv();			/* Process any incoming data */
-	EmptyTerminal();
-    } while (ring_full_count(&netiring));	/* While there is any */
-    setcommandmode();
-    fflush(stdout);
-    fflush(stderr);
-    setconnmode(0);
-    EmptyTerminal();			/* Flush the path to the tty */
-    setcommandmode();
-}
-
-void
-Exit(int returnCode)
-{
-    SetForExit();
-    exit(returnCode);
-}
-
-void
-ExitString(const char *string, int returnCode)
-{
-    SetForExit();
-    fwrite(string, 1, strlen(string), stderr);
-    exit(returnCode);
-}
diff --git a/crypto/telnet/telnetd/authenc.c b/crypto/telnet/telnetd/authenc.c
deleted file mode 100644
index 9377b522c972..000000000000
--- a/crypto/telnet/telnetd/authenc.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)authenc.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-/* Above "#ifdef"s actually "or"'ed together. XXX MarkM
- */
-#include "telnetd.h"
-#include <libtelnet/misc.h>
-
-int
-net_write(unsigned char *str, int len)
-{
-	if (nfrontp + len < netobuf + BUFSIZ) {
-		output_datalen(str, len);
-		return(len);
-	}
-	return(0);
-}
-
-void
-net_encrypt(void)
-{
-#ifdef	ENCRYPTION
-	char *s = (nclearto > nbackp) ? nclearto : nbackp;
-	if (s < nfrontp && encrypt_output) {
-		(*encrypt_output)((unsigned char *)s, nfrontp - s);
-	}
-	nclearto = nfrontp;
-#endif /* ENCRYPTION */
-}
-
-int
-telnet_spin(void)
-{
-	ttloop();
-	return(0);
-}
-
-char *
-telnet_getenv(char *val)
-{
-	return(getenv(val));
-}
-
-char *
-telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused)
-{
-	return(NULL);
-}
-#endif	/* ENCRYPTION */
-#endif	/* AUTHENTICATION */
diff --git a/crypto/telnet/telnetd/defs.h b/crypto/telnet/telnetd/defs.h
deleted file mode 100644
index d727f367c045..000000000000
--- a/crypto/telnet/telnetd/defs.h
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)defs.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Telnet server defines
- */
-#include <sys/types.h>
-#include <sys/param.h>
-
-#ifndef	BSD
-# define	BSD 43
-#endif
-
-#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS)
-#define TELOPTS
-#define TELCMDS
-#define	SLC_NAMES
-#endif
-
-#if	defined(SYSV_TERMIO) && !defined(USE_TERMIO)
-# define	USE_TERMIO
-#endif
-
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include <fcntl.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#ifndef	FILIO_H
-#include <sys/ioctl.h>
-#else
-#include <sys/filio.h>
-#endif
-
-#include <netinet/in.h>
-
-#include <arpa/telnet.h>
-
-#include <stdio.h>
-#ifdef	__STDC__
-#include <stdlib.h>
-#endif
-#include <signal.h>
-#include <errno.h>
-#include <netdb.h>
-#include <syslog.h>
-#ifndef	LOG_DAEMON
-#define	LOG_DAEMON	0
-#endif
-#ifndef	LOG_ODELAY
-#define	LOG_ODELAY	0
-#endif
-#include <ctype.h>
-#ifndef NO_STRING_H
-#include <string.h>
-#else
-#include <strings.h>
-#endif
-
-#ifndef	USE_TERMIO
-#include <sgtty.h>
-#else
-# ifdef	SYSV_TERMIO
-# include <termio.h>
-# else
-# include <termios.h>
-# endif
-#endif
-#if !defined(USE_TERMIO) || defined(NO_CC_T)
-typedef unsigned char cc_t;
-#endif
-
-#ifdef	__STDC__
-#include <unistd.h>
-#endif
-
-#ifndef _POSIX_VDISABLE
-# ifdef VDISABLE
-#  define _POSIX_VDISABLE VDISABLE
-# else
-#  define _POSIX_VDISABLE ((unsigned char)'\377')
-# endif
-#endif
-
-#if	!defined(TIOCSCTTY) && defined(TCSETCTTY)
-# define	TIOCSCTTY TCSETCTTY
-#endif
-
-#ifndef	FD_SET
-#ifndef	HAVE_fd_set
-typedef struct fd_set { int fds_bits[1]; } fd_set;
-#endif
-
-#define	FD_SET(n, p)	((p)->fds_bits[0] |= (1<<(n)))
-#define	FD_CLR(n, p)	((p)->fds_bits[0] &= ~(1<<(n)))
-#define	FD_ISSET(n, p)	((p)->fds_bits[0] & (1<<(n)))
-#define FD_ZERO(p)	((p)->fds_bits[0] = 0)
-#endif	/* FD_SET */
-
-/*
- * I/O data buffers defines
- */
-#define	NETSLOP	64
-
-#define	NIACCUM(c)	{   *netip++ = c; \
-			    ncc++; \
-			}
-
-/* clock manipulations */
-#define	settimer(x)	(clocks.x = ++clocks.system)
-#define	sequenceIs(x,y)	(clocks.x < clocks.y)
-
-/*
- * Linemode support states, in decreasing order of importance
- */
-#define REAL_LINEMODE	0x04
-#define KLUDGE_OK	0x03
-#define	NO_AUTOKLUDGE	0x02
-#define KLUDGE_LINEMODE	0x01
-#define NO_LINEMODE	0x00
-
-/*
- * Structures of information for each special character function.
- */
-typedef struct {
-	unsigned char	flag;		/* the flags for this function */
-	cc_t		val;		/* the value of the special character */
-} slcent, *Slcent;
-
-typedef struct {
-	slcent		defset;		/* the default settings */
-	slcent		current;	/* the current settings */
-	cc_t		*sptr;		/* a pointer to the char in */
-					/* system data structures */
-} slcfun, *Slcfun;
-
-#ifdef DIAGNOSTICS
-/*
- * Diagnostics capabilities
- */
-#define	TD_REPORT	0x01	/* Report operations to client */
-#define TD_EXERCISE	0x02	/* Exercise client's implementation */
-#define TD_NETDATA	0x04	/* Display received data stream */
-#define TD_PTYDATA	0x08	/* Display data passed to pty */
-#define	TD_OPTIONS	0x10	/* Report just telnet options */
-#endif /* DIAGNOSTICS */
-
-/*
- * We keep track of each side of the option negotiation.
- */
-
-#define	MY_STATE_WILL		0x01
-#define	MY_WANT_STATE_WILL	0x02
-#define	MY_STATE_DO		0x04
-#define	MY_WANT_STATE_DO	0x08
-
-/*
- * Macros to check the current state of things
- */
-
-#define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)
-#define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)
-#define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)
-#define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)
-
-#define	my_state_is_dont(opt)		(!my_state_is_do(opt))
-#define	my_state_is_wont(opt)		(!my_state_is_will(opt))
-#define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))
-#define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))
-
-#define	set_my_state_do(opt)		(options[opt] |= MY_STATE_DO)
-#define	set_my_state_will(opt)		(options[opt] |= MY_STATE_WILL)
-#define	set_my_want_state_do(opt)	(options[opt] |= MY_WANT_STATE_DO)
-#define	set_my_want_state_will(opt)	(options[opt] |= MY_WANT_STATE_WILL)
-
-#define	set_my_state_dont(opt)		(options[opt] &= ~MY_STATE_DO)
-#define	set_my_state_wont(opt)		(options[opt] &= ~MY_STATE_WILL)
-#define	set_my_want_state_dont(opt)	(options[opt] &= ~MY_WANT_STATE_DO)
-#define	set_my_want_state_wont(opt)	(options[opt] &= ~MY_WANT_STATE_WILL)
-
-/*
- * Tricky code here.  What we want to know is if the MY_STATE_WILL
- * and MY_WANT_STATE_WILL bits have the same value.  Since the two
- * bits are adjacent, a little arithmatic will show that by adding
- * in the lower bit, the upper bit will be set if the two bits were
- * different, and clear if they were the same.
- */
-#define my_will_wont_is_changing(opt) \
-			((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
-
-#define my_do_dont_is_changing(opt) \
-			((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
-
-/*
- * Make everything symetrical
- */
-
-#define	HIS_STATE_WILL			MY_STATE_DO
-#define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO
-#define HIS_STATE_DO			MY_STATE_WILL
-#define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL
-
-#define	his_state_is_do			my_state_is_will
-#define	his_state_is_will		my_state_is_do
-#define his_want_state_is_do		my_want_state_is_will
-#define his_want_state_is_will		my_want_state_is_do
-
-#define	his_state_is_dont		my_state_is_wont
-#define	his_state_is_wont		my_state_is_dont
-#define his_want_state_is_dont		my_want_state_is_wont
-#define his_want_state_is_wont		my_want_state_is_dont
-
-#define	set_his_state_do		set_my_state_will
-#define	set_his_state_will		set_my_state_do
-#define	set_his_want_state_do		set_my_want_state_will
-#define	set_his_want_state_will		set_my_want_state_do
-
-#define	set_his_state_dont		set_my_state_wont
-#define	set_his_state_wont		set_my_state_dont
-#define	set_his_want_state_dont		set_my_want_state_wont
-#define	set_his_want_state_wont		set_my_want_state_dont
-
-#define his_will_wont_is_changing	my_do_dont_is_changing
-#define his_do_dont_is_changing		my_will_wont_is_changing
diff --git a/crypto/telnet/telnetd/ext.h b/crypto/telnet/telnetd/ext.h
deleted file mode 100644
index 448ba68b92fd..000000000000
--- a/crypto/telnet/telnetd/ext.h
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)ext.h	8.2 (Berkeley) 12/15/93
- * $FreeBSD$
- */
-
-/*
- * Telnet server variable declarations
- */
-extern char	options[256];
-extern char	do_dont_resp[256];
-extern char	will_wont_resp[256];
-extern int	linemode;	/* linemode on/off */
-#ifdef	LINEMODE
-extern int	uselinemode;	/* what linemode to use (on/off) */
-extern int	editmode;	/* edit modes in use */
-extern int	useeditmode;	/* edit modes to use */
-extern int	alwayslinemode;	/* command line option */
-extern int	lmodetype;	/* Client support for linemode */
-#endif	/* LINEMODE */
-extern int	flowmode;	/* current flow control state */
-extern int	restartany;	/* restart output on any character state */
-#ifdef DIAGNOSTICS
-extern int	diagnostic;	/* telnet diagnostic capabilities */
-#endif /* DIAGNOSTICS */
-#ifdef BFTPDAEMON
-extern int	bftpd;		/* behave as bftp daemon */
-#endif /* BFTPDAEMON */
-#ifdef	AUTHENTICATION
-extern int	auth_level;
-#endif
-
-extern slcfun	slctab[NSLC + 1];	/* slc mapping table */
-
-char	*terminaltype;
-
-/*
- * I/O data buffers, pointers, and counters.
- */
-extern char	ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
-
-extern char	netibuf[BUFSIZ], *netip;
-
-extern char	netobuf[BUFSIZ], *nfrontp, *nbackp;
-extern char	*neturg;		/* one past last bye of urgent data */
-
-extern int	pcc, ncc;
-
-extern int	pty, net;
-extern char	line[16];
-extern int	SYNCHing;		/* we are in TELNET SYNCH mode */
-
-extern void
-	_termstat(void),
-	add_slc(char, char, cc_t),
-	check_slc(void),
-	change_slc(char, char, cc_t),
-	cleanup(int),
-	clientstat(int, int, int),
-	copy_termbuf(char *, size_t),
-	deferslc(void),
-	defer_terminit(void),
-	do_opt_slc(unsigned char *, int),
-	doeof(void),
-	dooption(int),
-	dontoption(int),
-	edithost(char *, char *),
-	fatal(int, const char *),
-	fatalperror(int, const char *),
-	get_slc_defaults(void),
-	init_env(void),
-	init_termbuf(void),
-	interrupt(void),
-	localstat(void),
-	flowstat(void),
-	netclear(void),
-	netflush(void),
-#ifdef DIAGNOSTICS
-	printoption(const char *, int),
-	printdata(const char *, char *, int),
-	printsub(char, unsigned char *, int),
-#endif
-	process_slc(unsigned char, unsigned char, cc_t),
-	ptyflush(void),
-	putchr(int),
-	putf(char *, char *),
-	recv_ayt(void),
-	send_do(int, int),
-	send_dont(int, int),
-	send_slc(void),
-	send_status(void),
-	send_will(int, int),
-	send_wont(int, int),
-	sendbrk(void),
-	sendsusp(void),
-	set_termbuf(void),
-	start_login(char *, int, char *),
-	start_slc(int),
-#ifdef	AUTHENTICATION
-	start_slave(char *),
-#else
-	start_slave(char *, int, char *),
-#endif
-	suboption(void),
-	telrcv(void),
-	ttloop(void),
-	tty_binaryin(int),
-	tty_binaryout(int);
-
-extern int
-	end_slc(unsigned char **),
-	getnpty(void),
-#ifndef convex
-	getpty(int *),
-#endif
-	login_tty(int),
-	spcset(int, cc_t *, cc_t **),
-	stilloob(int),
-	terminit(void),
-	termstat(void),
-	tty_flowmode(void),
-	tty_restartany(void),
-	tty_isbinaryin(void),
-	tty_isbinaryout(void),
-	tty_iscrnl(void),
-	tty_isecho(void),
-	tty_isediting(void),
-	tty_islitecho(void),
-	tty_isnewmap(void),
-	tty_israw(void),
-	tty_issofttab(void),
-	tty_istrapsig(void),
-	tty_linemode(void);
-
-extern void
-	tty_rspeed(int),
-	tty_setecho(int),
-	tty_setedit(int),
-	tty_setlinemode(int),
-	tty_setlitecho(int),
-	tty_setsig(int),
-	tty_setsofttab(int),
-	tty_tspeed(int),
-	willoption(int),
-	wontoption(int);
-
-int	output_data(const char *, ...) __printflike(1, 2);
-void	output_datalen(const char *, int);
-void	startslave(char *, int, char *);
-
-#ifdef	ENCRYPTION
-extern void	(*encrypt_output)(unsigned char *, int);
-extern int	(*decrypt_input)(int);
-extern char	*nclearto;
-#endif	/* ENCRYPTION */
-
-
-/*
- * The following are some clocks used to decide how to interpret
- * the relationship between various variables.
- */
-
-extern struct {
-    int
-	system,			/* what the current time is */
-	echotoggle,		/* last time user entered echo character */
-	modenegotiated,		/* last time operating mode negotiated */
-	didnetreceive,		/* last time we read data from network */
-	ttypesubopt,		/* ttype subopt is received */
-	tspeedsubopt,		/* tspeed subopt is received */
-	environsubopt,		/* environ subopt is received */
-	oenvironsubopt,		/* old environ subopt is received */
-	xdisplocsubopt,		/* xdisploc subopt is received */
-	baseline,		/* time started to do timed action */
-	gotDM;			/* when did we last see a data mark */
-} clocks;
-
-#ifndef	DEFAULT_IM
-#   ifdef ultrix
-#    define DEFAULT_IM	"\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r"
-#   else
-#    ifdef __FreeBSD__
-#     define DEFAULT_IM  "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r"
-#    else
-#    define DEFAULT_IM	"\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r"
-#    endif
-#   endif
-#endif
diff --git a/crypto/telnet/telnetd/global.c b/crypto/telnet/telnetd/global.c
deleted file mode 100644
index 2ed82d0b6aee..000000000000
--- a/crypto/telnet/telnetd/global.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)global.c	8.1 (Berkeley) 6/4/93";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * Allocate global variables.  We do this
- * by including the header file that defines
- * them all as externs, but first we define
- * the keyword "extern" to be nothing, so that
- * we will actually allocate the space.
- */
-
-#include "defs.h"
-#define extern
-#include "ext.h"
diff --git a/crypto/telnet/telnetd/pathnames.h b/crypto/telnet/telnetd/pathnames.h
deleted file mode 100644
index ed8ee887a39e..000000000000
--- a/crypto/telnet/telnetd/pathnames.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)pathnames.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-#if BSD > 43
-
-# include <paths.h>
-
-# ifndef _PATH_LOGIN
-#  define	_PATH_LOGIN	"/usr/bin/login"
-# endif
-
-#else
-
-# define	_PATH_TTY	"/dev/tty"
-# ifndef _PATH_LOGIN
-#  define	_PATH_LOGIN	"/bin/login"
-# endif
-
-#endif
-
-#ifdef BFTPDAEMON
-#define		BFTPPATH	"/usr/ucb/bftp"
-#endif  /* BFTPDAEMON */
diff --git a/crypto/telnet/telnetd/slc.c b/crypto/telnet/telnetd/slc.c
deleted file mode 100644
index ad034418d313..000000000000
--- a/crypto/telnet/telnetd/slc.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)slc.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "telnetd.h"
-
-#ifdef	LINEMODE
-/*
- * local variables
- */
-static unsigned char	*def_slcbuf = (unsigned char *)0;
-static int		def_slclen = 0;
-static int		slcchange;	/* change to slc is requested */
-static unsigned char	*slcptr;	/* pointer into slc buffer */
-static unsigned char	slcbuf[NSLC*6];	/* buffer for slc negotiation */
-
-/*
- * send_slc
- *
- * Write out the current special characters to the client.
- */
-void
-send_slc(void)
-{
-	int i;
-
-	/*
-	 * Send out list of triplets of special characters
-	 * to client.  We only send info on the characters
-	 * that are currently supported.
-	 */
-	for (i = 1; i <= NSLC; i++) {
-		if ((slctab[i].defset.flag & SLC_LEVELBITS) == SLC_NOSUPPORT)
-			continue;
-		add_slc((unsigned char)i, slctab[i].current.flag,
-							slctab[i].current.val);
-	}
-
-}  /* end of send_slc */
-
-/*
- * default_slc
- *
- * Set pty special characters to all the defaults.
- */
-static void
-default_slc(void)
-{
-	int i;
-
-	for (i = 1; i <= NSLC; i++) {
-		slctab[i].current.val = slctab[i].defset.val;
-		if (slctab[i].current.val == (cc_t)(_POSIX_VDISABLE))
-			slctab[i].current.flag = SLC_NOSUPPORT;
-		else
-			slctab[i].current.flag = slctab[i].defset.flag;
-		if (slctab[i].sptr) {
-			*(slctab[i].sptr) = slctab[i].defset.val;
-		}
-	}
-	slcchange = 1;
-
-}  /* end of default_slc */
-#endif	/* LINEMODE */
-
-/*
- * get_slc_defaults
- *
- * Initialize the slc mapping table.
- */
-void
-get_slc_defaults(void)
-{
-	int i;
-
-	init_termbuf();
-
-	for (i = 1; i <= NSLC; i++) {
-		slctab[i].defset.flag =
-			spcset(i, &slctab[i].defset.val, &slctab[i].sptr);
-		slctab[i].current.flag = SLC_NOSUPPORT;
-		slctab[i].current.val = 0;
-	}
-
-}  /* end of get_slc_defaults */
-
-#ifdef	LINEMODE
-/*
- * add_slc
- *
- * Add an slc triplet to the slc buffer.
- */
-void
-add_slc(char func, char flag, cc_t val)
-{
-
-	if ((*slcptr++ = (unsigned char)func) == 0xff)
-		*slcptr++ = 0xff;
-
-	if ((*slcptr++ = (unsigned char)flag) == 0xff)
-		*slcptr++ = 0xff;
-
-	if ((*slcptr++ = (unsigned char)val) == 0xff)
-		*slcptr++ = 0xff;
-
-}  /* end of add_slc */
-
-/*
- * start_slc
- *
- * Get ready to process incoming slc's and respond to them.
- *
- * The parameter getit is non-zero if it is necessary to grab a copy
- * of the terminal control structures.
- */
-void
-start_slc(int getit)
-{
-
-	slcchange = 0;
-	if (getit)
-		init_termbuf();
-	(void) sprintf((char *)slcbuf, "%c%c%c%c",
-					IAC, SB, TELOPT_LINEMODE, LM_SLC);
-	slcptr = slcbuf + 4;
-
-}  /* end of start_slc */
-
-/*
- * end_slc
- *
- * Finish up the slc negotiation.  If something to send, then send it.
- */
-int
-end_slc(unsigned char **bufp)
-{
-	int len;
-
-	/*
-	 * If a change has occured, store the new terminal control
-	 * structures back to the terminal driver.
-	 */
-	if (slcchange) {
-		set_termbuf();
-	}
-
-	/*
-	 * If the pty state has not yet been fully processed and there is a
-	 * deferred slc request from the client, then do not send any
-	 * sort of slc negotiation now.  We will respond to the client's
-	 * request very soon.
-	 */
-	if (def_slcbuf && (terminit() == 0)) {
-		return(0);
-	}
-
-	if (slcptr > (slcbuf + 4)) {
-		if (bufp) {
-			*bufp = &slcbuf[4];
-			return(slcptr - slcbuf - 4);
-		} else {
-			(void) sprintf((char *)slcptr, "%c%c", IAC, SE);
-			slcptr += 2;
-			len = slcptr - slcbuf;
-			output_datalen(slcbuf, len);
-			netflush();  /* force it out immediately */
-			DIAG(TD_OPTIONS, printsub('>', slcbuf+2, len-2););
-		}
-	}
-	return (0);
-
-}  /* end of end_slc */
-
-/*
- * process_slc
- *
- * Figure out what to do about the client's slc
- */
-void
-process_slc(unsigned char func, unsigned char flag, cc_t val)
-{
-	int hislevel, mylevel, ack;
-
-	/*
-	 * Ensure that we know something about this function
-	 */
-	if (func > NSLC) {
-		add_slc(func, SLC_NOSUPPORT, 0);
-		return;
-	}
-
-	/*
-	 * Process the special case requests of 0 SLC_DEFAULT 0
-	 * and 0 SLC_VARIABLE 0.  Be a little forgiving here, don't
-	 * worry about whether the value is actually 0 or not.
-	 */
-	if (func == 0) {
-		if ((flag = flag & SLC_LEVELBITS) == SLC_DEFAULT) {
-			default_slc();
-			send_slc();
-		} else if (flag == SLC_VARIABLE) {
-			send_slc();
-		}
-		return;
-	}
-
-	/*
-	 * Appears to be a function that we know something about.  So
-	 * get on with it and see what we know.
-	 */
-
-	hislevel = flag & SLC_LEVELBITS;
-	mylevel = slctab[func].current.flag & SLC_LEVELBITS;
-	ack = flag & SLC_ACK;
-	/*
-	 * ignore the command if:
-	 * the function value and level are the same as what we already have;
-	 * or the level is the same and the ack bit is set
-	 */
-	if (hislevel == mylevel && (val == slctab[func].current.val || ack)) {
-		return;
-	} else if (ack) {
-		/*
-		 * If we get here, we got an ack, but the levels don't match.
-		 * This shouldn't happen.  If it does, it is probably because
-		 * we have sent two requests to set a variable without getting
-		 * a response between them, and this is the first response.
-		 * So, ignore it, and wait for the next response.
-		 */
-		return;
-	} else {
-		change_slc(func, flag, val);
-	}
-
-}  /* end of process_slc */
-
-/*
- * change_slc
- *
- * Process a request to change one of our special characters.
- * Compare client's request with what we are capable of supporting.
- */
-void
-change_slc(char func, char flag, cc_t val)
-{
-	int hislevel, mylevel;
-
-	hislevel = flag & SLC_LEVELBITS;
-	mylevel = slctab[(int)func].defset.flag & SLC_LEVELBITS;
-	/*
-	 * If client is setting a function to NOSUPPORT
-	 * or DEFAULT, then we can easily and directly
-	 * accomodate the request.
-	 */
-	if (hislevel == SLC_NOSUPPORT) {
-		slctab[(int)func].current.flag = flag;
-		slctab[(int)func].current.val = (cc_t)_POSIX_VDISABLE;
-		flag |= SLC_ACK;
-		add_slc(func, flag, val);
-		return;
-	}
-	if (hislevel == SLC_DEFAULT) {
-		/*
-		 * Special case here.  If client tells us to use
-		 * the default on a function we don't support, then
-		 * return NOSUPPORT instead of what we may have as a
-		 * default level of DEFAULT.
-		 */
-		if (mylevel == SLC_DEFAULT) {
-			slctab[(int)func].current.flag = SLC_NOSUPPORT;
-		} else {
-			slctab[(int)func].current.flag = slctab[(int)func].defset.flag;
-		}
-		slctab[(int)func].current.val = slctab[(int)func].defset.val;
-		add_slc(func, slctab[(int)func].current.flag,
-						slctab[(int)func].current.val);
-		return;
-	}
-
-	/*
-	 * Client wants us to change to a new value or he
-	 * is telling us that he can't change to our value.
-	 * Some of the slc's we support and can change,
-	 * some we do support but can't change,
-	 * and others we don't support at all.
-	 * If we can change it then we have a pointer to
-	 * the place to put the new value, so change it,
-	 * otherwise, continue the negotiation.
-	 */
-	if (slctab[(int)func].sptr) {
-		/*
-		 * We can change this one.
-		 */
-		slctab[(int)func].current.val = val;
-		*(slctab[(int)func].sptr) = val;
-		slctab[(int)func].current.flag = flag;
-		flag |= SLC_ACK;
-		slcchange = 1;
-		add_slc(func, flag, val);
-	} else {
-		/*
-		* It is not possible for us to support this
-		* request as he asks.
-		*
-		* If our level is DEFAULT, then just ack whatever was
-		* sent.
-		*
-		* If he can't change and we can't change,
-		* then degenerate to NOSUPPORT.
-		*
-		* Otherwise we send our level back to him, (CANTCHANGE
-		* or NOSUPPORT) and if CANTCHANGE, send
-		* our value as well.
-		*/
-		if (mylevel == SLC_DEFAULT) {
-			slctab[(int)func].current.flag = flag;
-			slctab[(int)func].current.val = val;
-			flag |= SLC_ACK;
-		} else if (hislevel == SLC_CANTCHANGE &&
-				    mylevel == SLC_CANTCHANGE) {
-			flag &= ~SLC_LEVELBITS;
-			flag |= SLC_NOSUPPORT;
-			slctab[(int)func].current.flag = flag;
-		} else {
-			flag &= ~SLC_LEVELBITS;
-			flag |= mylevel;
-			slctab[(int)func].current.flag = flag;
-			if (mylevel == SLC_CANTCHANGE) {
-				slctab[(int)func].current.val =
-					slctab[(int)func].defset.val;
-				val = slctab[(int)func].current.val;
-			}
-		}
-		add_slc(func, flag, val);
-	}
-
-}  /* end of change_slc */
-
-#if	defined(USE_TERMIO) && (VEOF == VMIN)
-cc_t oldeofc = '\004';
-#endif
-
-/*
- * check_slc
- *
- * Check the special characters in use and notify the client if any have
- * changed.  Only those characters that are capable of being changed are
- * likely to have changed.  If a local change occurs, kick the support level
- * and flags up to the defaults.
- */
-void
-check_slc(void)
-{
-	int i;
-
-	for (i = 1; i <= NSLC; i++) {
-#if	defined(USE_TERMIO) && (VEOF == VMIN)
-		/*
-		 * In a perfect world this would be a neat little
-		 * function.  But in this world, we should not notify
-		 * client of changes to the VEOF char when
-		 * ICANON is off, because it is not representing
-		 * a special character.
-		 */
-		if (i == SLC_EOF) {
-			if (!tty_isediting())
-				continue;
-			else if (slctab[i].sptr)
-				oldeofc = *(slctab[i].sptr);
-		}
-#endif	/* defined(USE_TERMIO) && defined(SYSV_TERMIO) */
-		if (slctab[i].sptr &&
-				(*(slctab[i].sptr) != slctab[i].current.val)) {
-			slctab[i].current.val = *(slctab[i].sptr);
-			if (*(slctab[i].sptr) == (cc_t)_POSIX_VDISABLE)
-				slctab[i].current.flag = SLC_NOSUPPORT;
-			else
-				slctab[i].current.flag = slctab[i].defset.flag;
-			add_slc((unsigned char)i, slctab[i].current.flag,
-						slctab[i].current.val);
-		}
-	}
-}  /* check_slc */
-
-/*
- * do_opt_slc
- *
- * Process an slc option buffer.  Defer processing of incoming slc's
- * until after the terminal state has been processed.  Save the first slc
- * request that comes along, but discard all others.
- *
- * ptr points to the beginning of the buffer, len is the length.
- */
-void
-do_opt_slc(unsigned char *ptr, int len)
-{
-	unsigned char func, flag;
-	cc_t val;
-	unsigned char *end = ptr + len;
-
-	if (terminit()) {  /* go ahead */
-		while (ptr < end) {
-			func = *ptr++;
-			if (ptr >= end) break;
-			flag = *ptr++;
-			if (ptr >= end) break;
-			val = (cc_t)*ptr++;
-
-			process_slc(func, flag, val);
-
-		}
-	} else {
-		/*
-		 * save this slc buffer if it is the first, otherwise dump
-		 * it.
-		 */
-		if (def_slcbuf == (unsigned char *)0) {
-			def_slclen = len;
-			def_slcbuf = (unsigned char *)malloc((unsigned)len);
-			if (def_slcbuf == (unsigned char *)0)
-				return;  /* too bad */
-			memmove(def_slcbuf, ptr, len);
-		}
-	}
-
-}  /* end of do_opt_slc */
-
-/*
- * deferslc
- *
- * Do slc stuff that was deferred.
- */
-void
-deferslc(void)
-{
-	if (def_slcbuf) {
-		start_slc(1);
-		do_opt_slc(def_slcbuf, def_slclen);
-		(void) end_slc(0);
-		free(def_slcbuf);
-		def_slcbuf = (unsigned char *)0;
-		def_slclen = 0;
-	}
-
-}  /* end of deferslc */
-
-#endif	/* LINEMODE */
diff --git a/crypto/telnet/telnetd/state.c b/crypto/telnet/telnetd/state.c
deleted file mode 100644
index 9db4516096a0..000000000000
--- a/crypto/telnet/telnetd/state.c
+++ /dev/null
@@ -1,1631 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)state.c	8.5 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <stdarg.h>
-#include "telnetd.h"
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-unsigned char	doopt[] = { IAC, DO, '%', 'c', 0 };
-unsigned char	dont[] = { IAC, DONT, '%', 'c', 0 };
-unsigned char	will[] = { IAC, WILL, '%', 'c', 0 };
-unsigned char	wont[] = { IAC, WONT, '%', 'c', 0 };
-int	not42 = 1;
-
-/*
- * Buffer for sub-options, and macros
- * for suboptions buffer manipulations
- */
-unsigned char subbuffer[512], *subpointer= subbuffer, *subend= subbuffer;
-
-#define	SB_CLEAR()	subpointer = subbuffer
-#define	SB_TERM()	{ subend = subpointer; SB_CLEAR(); }
-#define	SB_ACCUM(c)	if (subpointer < (subbuffer+sizeof subbuffer)) { \
-				*subpointer++ = (c); \
-			}
-#define	SB_GET()	((*subpointer++)&0xff)
-#define	SB_EOF()	(subpointer >= subend)
-#define	SB_LEN()	(subend - subpointer)
-
-#ifdef	ENV_HACK
-unsigned char *subsave;
-#define SB_SAVE()	subsave = subpointer;
-#define	SB_RESTORE()	subpointer = subsave;
-#endif
-
-
-/*
- * State for recv fsm
- */
-#define	TS_DATA		0	/* base state */
-#define	TS_IAC		1	/* look for double IAC's */
-#define	TS_CR		2	/* CR-LF ->'s CR */
-#define	TS_SB		3	/* throw away begin's... */
-#define	TS_SE		4	/* ...end's (suboption negotiation) */
-#define	TS_WILL		5	/* will option negotiation */
-#define	TS_WONT		6	/* wont " */
-#define	TS_DO		7	/* do " */
-#define	TS_DONT		8	/* dont " */
-
-static void doclientstat(void);
-
-void
-telrcv(void)
-{
-	int c;
-	static int state = TS_DATA;
-
-	while (ncc > 0) {
-		if ((&ptyobuf[BUFSIZ] - pfrontp) < 2)
-			break;
-		c = *netip++ & 0377, ncc--;
-#ifdef	ENCRYPTION
-		if (decrypt_input)
-			c = (*decrypt_input)(c);
-#endif	/* ENCRYPTION */
-		switch (state) {
-
-		case TS_CR:
-			state = TS_DATA;
-			/* Strip off \n or \0 after a \r */
-			if ((c == 0) || (c == '\n')) {
-				break;
-			}
-			/* FALLTHROUGH */
-
-		case TS_DATA:
-			if (c == IAC) {
-				state = TS_IAC;
-				break;
-			}
-			/*
-			 * We now map \r\n ==> \r for pragmatic reasons.
-			 * Many client implementations send \r\n when
-			 * the user hits the CarriageReturn key.
-			 *
-			 * We USED to map \r\n ==> \n, since \r\n says
-			 * that we want to be in column 1 of the next
-			 * printable line, and \n is the standard
-			 * unix way of saying that (\r is only good
-			 * if CRMOD is set, which it normally is).
-			 */
-			if ((c == '\r') && his_state_is_wont(TELOPT_BINARY)) {
-				int nc = *netip;
-#ifdef	ENCRYPTION
-				if (decrypt_input)
-					nc = (*decrypt_input)(nc & 0xff);
-#endif	/* ENCRYPTION */
-#ifdef	LINEMODE
-				/*
-				 * If we are operating in linemode,
-				 * convert to local end-of-line.
-				 */
-				if (linemode && (ncc > 0) && (('\n' == nc) ||
-					 ((0 == nc) && tty_iscrnl())) ) {
-					netip++; ncc--;
-					c = '\n';
-				} else
-#endif
-				{
-#ifdef	ENCRYPTION
-					if (decrypt_input)
-						(void)(*decrypt_input)(-1);
-#endif	/* ENCRYPTION */
-					state = TS_CR;
-				}
-			}
-			*pfrontp++ = c;
-			break;
-
-		case TS_IAC:
-gotiac:			switch (c) {
-
-			/*
-			 * Send the process on the pty side an
-			 * interrupt.  Do this with a NULL or
-			 * interrupt char; depending on the tty mode.
-			 */
-			case IP:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				interrupt();
-				break;
-
-			case BREAK:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				sendbrk();
-				break;
-
-			/*
-			 * Are You There?
-			 */
-			case AYT:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				recv_ayt();
-				break;
-
-			/*
-			 * Abort Output
-			 */
-			case AO:
-			    {
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				ptyflush();	/* half-hearted */
-				init_termbuf();
-
-				if (slctab[SLC_AO].sptr &&
-				    *slctab[SLC_AO].sptr != (cc_t)(_POSIX_VDISABLE)) {
-				    *pfrontp++ =
-					(unsigned char)*slctab[SLC_AO].sptr;
-				}
-
-				netclear();	/* clear buffer back */
-				output_data("%c%c", IAC, DM);
-				neturg = nfrontp-1; /* off by one XXX */
-				DIAG(TD_OPTIONS,
-					printoption("td: send IAC", DM));
-				break;
-			    }
-
-			/*
-			 * Erase Character and
-			 * Erase Line
-			 */
-			case EC:
-			case EL:
-			    {
-				cc_t ch;
-
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				ptyflush();	/* half-hearted */
-				init_termbuf();
-				if (c == EC)
-					ch = *slctab[SLC_EC].sptr;
-				else
-					ch = *slctab[SLC_EL].sptr;
-				if (ch != (cc_t)(_POSIX_VDISABLE))
-					*pfrontp++ = (unsigned char)ch;
-				break;
-			    }
-
-			/*
-			 * Check for urgent data...
-			 */
-			case DM:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				SYNCHing = stilloob(net);
-				settimer(gotDM);
-				break;
-
-
-			/*
-			 * Begin option subnegotiation...
-			 */
-			case SB:
-				state = TS_SB;
-				SB_CLEAR();
-				continue;
-
-			case WILL:
-				state = TS_WILL;
-				continue;
-
-			case WONT:
-				state = TS_WONT;
-				continue;
-
-			case DO:
-				state = TS_DO;
-				continue;
-
-			case DONT:
-				state = TS_DONT;
-				continue;
-			case EOR:
-				if (his_state_is_will(TELOPT_EOR))
-					doeof();
-				break;
-
-			/*
-			 * Handle RFC 10xx Telnet linemode option additions
-			 * to command stream (EOF, SUSP, ABORT).
-			 */
-			case xEOF:
-				doeof();
-				break;
-
-			case SUSP:
-				sendsusp();
-				break;
-
-			case ABORT:
-				sendbrk();
-				break;
-
-			case IAC:
-				*pfrontp++ = c;
-				break;
-			}
-			state = TS_DATA;
-			break;
-
-		case TS_SB:
-			if (c == IAC) {
-				state = TS_SE;
-			} else {
-				SB_ACCUM(c);
-			}
-			break;
-
-		case TS_SE:
-			if (c != SE) {
-				if (c != IAC) {
-					/*
-					 * bad form of suboption negotiation.
-					 * handle it in such a way as to avoid
-					 * damage to local state.  Parse
-					 * suboption buffer found so far,
-					 * then treat remaining stream as
-					 * another command sequence.
-					 */
-
-					/* for DIAGNOSTICS */
-					SB_ACCUM(IAC);
-					SB_ACCUM(c);
-					subpointer -= 2;
-
-					SB_TERM();
-					suboption();
-					state = TS_IAC;
-					goto gotiac;
-				}
-				SB_ACCUM(c);
-				state = TS_SB;
-			} else {
-				/* for DIAGNOSTICS */
-				SB_ACCUM(IAC);
-				SB_ACCUM(SE);
-				subpointer -= 2;
-
-				SB_TERM();
-				suboption();	/* handle sub-option */
-				state = TS_DATA;
-			}
-			break;
-
-		case TS_WILL:
-			willoption(c);
-			state = TS_DATA;
-			continue;
-
-		case TS_WONT:
-			wontoption(c);
-			state = TS_DATA;
-			continue;
-
-		case TS_DO:
-			dooption(c);
-			state = TS_DATA;
-			continue;
-
-		case TS_DONT:
-			dontoption(c);
-			state = TS_DATA;
-			continue;
-
-		default:
-			syslog(LOG_ERR, "panic state=%d", state);
-			printf("telnetd: panic state=%d\n", state);
-			exit(1);
-		}
-	}
-}  /* end of telrcv */
-
-/*
- * The will/wont/do/dont state machines are based on Dave Borman's
- * Telnet option processing state machine.
- *
- * These correspond to the following states:
- *	my_state = the last negotiated state
- *	want_state = what I want the state to go to
- *	want_resp = how many requests I have sent
- * All state defaults are negative, and resp defaults to 0.
- *
- * When initiating a request to change state to new_state:
- *
- * if ((want_resp == 0 && new_state == my_state) || want_state == new_state) {
- *	do nothing;
- * } else {
- *	want_state = new_state;
- *	send new_state;
- *	want_resp++;
- * }
- *
- * When receiving new_state:
- *
- * if (want_resp) {
- *	want_resp--;
- *	if (want_resp && (new_state == my_state))
- *		want_resp--;
- * }
- * if ((want_resp == 0) && (new_state != want_state)) {
- *	if (ok_to_switch_to new_state)
- *		want_state = new_state;
- *	else
- *		want_resp++;
- *	send want_state;
- * }
- * my_state = new_state;
- *
- * Note that new_state is implied in these functions by the function itself.
- * will and do imply positive new_state, wont and dont imply negative.
- *
- * Finally, there is one catch.  If we send a negative response to a
- * positive request, my_state will be the positive while want_state will
- * remain negative.  my_state will revert to negative when the negative
- * acknowlegment arrives from the peer.  Thus, my_state generally tells
- * us not only the last negotiated state, but also tells us what the peer
- * wants to be doing as well.  It is important to understand this difference
- * as we may wish to be processing data streams based on our desired state
- * (want_state) or based on what the peer thinks the state is (my_state).
- *
- * This all works fine because if the peer sends a positive request, the data
- * that we receive prior to negative acknowlegment will probably be affected
- * by the positive state, and we can process it as such (if we can; if we
- * can't then it really doesn't matter).  If it is that important, then the
- * peer probably should be buffering until this option state negotiation
- * is complete.
- *
- */
-void
-send_do(int option, int init)
-{
-	if (init) {
-		if ((do_dont_resp[option] == 0 && his_state_is_will(option)) ||
-		    his_want_state_is_will(option))
-			return;
-		/*
-		 * Special case for TELOPT_TM:  We send a DO, but pretend
-		 * that we sent a DONT, so that we can send more DOs if
-		 * we want to.
-		 */
-		if (option == TELOPT_TM)
-			set_his_want_state_wont(option);
-		else
-			set_his_want_state_will(option);
-		do_dont_resp[option]++;
-	}
-	output_data((const char *)doopt, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send do", option));
-}
-
-void
-willoption(int option)
-{
-	int changeok = 0;
-	void (*func)(void) = 0;
-
-	/*
-	 * process input from peer.
-	 */
-
-	DIAG(TD_OPTIONS, printoption("td: recv will", option));
-
-	if (do_dont_resp[option]) {
-		do_dont_resp[option]--;
-		if (do_dont_resp[option] && his_state_is_will(option))
-			do_dont_resp[option]--;
-	}
-	if (do_dont_resp[option] == 0) {
-	    if (his_want_state_is_wont(option)) {
-		switch (option) {
-
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryin(1);
-			set_termbuf();
-			changeok++;
-			break;
-
-		case TELOPT_ECHO:
-			/*
-			 * See comments below for more info.
-			 */
-			not42 = 0;	/* looks like a 4.2 system */
-			break;
-
-		case TELOPT_TM:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			/*
-			 * This telnetd implementation does not really
-			 * support timing marks, it just uses them to
-			 * support the kludge linemode stuff.  If we
-			 * receive a will or wont TM in response to our
-			 * do TM request that may have been sent to
-			 * determine kludge linemode support, process
-			 * it, otherwise TM should get a negative
-			 * response back.
-			 */
-			/*
-			 * Handle the linemode kludge stuff.
-			 * If we are not currently supporting any
-			 * linemode at all, then we assume that this
-			 * is the client telling us to use kludge
-			 * linemode in response to our query.  Set the
-			 * linemode type that is to be supported, note
-			 * that the client wishes to use linemode, and
-			 * eat the will TM as though it never arrived.
-			 */
-			if (lmodetype < KLUDGE_LINEMODE) {
-				lmodetype = KLUDGE_LINEMODE;
-				clientstat(TELOPT_LINEMODE, WILL, 0);
-				send_wont(TELOPT_SGA, 1);
-			} else if (lmodetype == NO_AUTOKLUDGE) {
-				lmodetype = KLUDGE_OK;
-			}
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			/*
-			 * We never respond to a WILL TM, and
-			 * we leave the state WONT.
-			 */
-			return;
-
-		case TELOPT_LFLOW:
-			/*
-			 * If we are going to support flow control
-			 * option, then don't worry peer that we can't
-			 * change the flow control characters.
-			 */
-			slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XON].defset.flag |= SLC_DEFAULT;
-			slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XOFF].defset.flag |= SLC_DEFAULT;
-		case TELOPT_TTYPE:
-		case TELOPT_SGA:
-		case TELOPT_NAWS:
-		case TELOPT_TSPEED:
-		case TELOPT_XDISPLOC:
-		case TELOPT_NEW_ENVIRON:
-		case TELOPT_OLD_ENVIRON:
-			changeok++;
-			break;
-
-#ifdef	LINEMODE
-		case TELOPT_LINEMODE:
-# ifdef	KLUDGELINEMODE
-			/*
-			 * Note client's desire to use linemode.
-			 */
-			lmodetype = REAL_LINEMODE;
-# endif	/* KLUDGELINEMODE */
-			func = doclientstat;
-			changeok++;
-			break;
-#endif	/* LINEMODE */
-
-#ifdef	AUTHENTICATION
-		case TELOPT_AUTHENTICATION:
-			func = auth_request;
-			changeok++;
-			break;
-#endif
-
-#ifdef	ENCRYPTION
-		case TELOPT_ENCRYPT:
-			func = encrypt_send_support;
-			changeok++;
-			break;
-#endif	/* ENCRYPTION */
-
-		default:
-			break;
-		}
-		if (changeok) {
-			set_his_want_state_will(option);
-			send_do(option, 0);
-		} else {
-			do_dont_resp[option]++;
-			send_dont(option, 0);
-		}
-	    } else {
-		/*
-		 * Option processing that should happen when
-		 * we receive conformation of a change in
-		 * state that we had requested.
-		 */
-		switch (option) {
-		case TELOPT_ECHO:
-			not42 = 0;	/* looks like a 4.2 system */
-			/*
-			 * Egads, he responded "WILL ECHO".  Turn
-			 * it off right now!
-			 */
-			send_dont(option, 1);
-			/*
-			 * "WILL ECHO".  Kludge upon kludge!
-			 * A 4.2 client is now echoing user input at
-			 * the tty.  This is probably undesireable and
-			 * it should be stopped.  The client will
-			 * respond WONT TM to the DO TM that we send to
-			 * check for kludge linemode.  When the WONT TM
-			 * arrives, linemode will be turned off and a
-			 * change propogated to the pty.  This change
-			 * will cause us to process the new pty state
-			 * in localstat(), which will notice that
-			 * linemode is off and send a WILL ECHO
-			 * so that we are properly in character mode and
-			 * all is well.
-			 */
-			break;
-#ifdef	LINEMODE
-		case TELOPT_LINEMODE:
-# ifdef	KLUDGELINEMODE
-			/*
-			 * Note client's desire to use linemode.
-			 */
-			lmodetype = REAL_LINEMODE;
-# endif	/* KLUDGELINEMODE */
-			func = doclientstat;
-			break;
-#endif	/* LINEMODE */
-
-#ifdef	AUTHENTICATION
-		case TELOPT_AUTHENTICATION:
-			func = auth_request;
-			break;
-#endif
-
-#ifdef	ENCRYPTION
-		case TELOPT_ENCRYPT:
-			func = encrypt_send_support;
-			break;
-#endif	/* ENCRYPTION */
-		case TELOPT_LFLOW:
-			func = flowstat;
-			break;
-		}
-	    }
-	}
-	set_his_state_will(option);
-	if (func)
-		(*func)();
-}  /* end of willoption */
-
-void
-send_dont(int option, int init)
-{
-	if (init) {
-		if ((do_dont_resp[option] == 0 && his_state_is_wont(option)) ||
-		    his_want_state_is_wont(option))
-			return;
-		set_his_want_state_wont(option);
-		do_dont_resp[option]++;
-	}
-	output_data((const char *)dont, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send dont", option));
-}
-
-void
-wontoption(int option)
-{
-	/*
-	 * Process client input.
-	 */
-
-	DIAG(TD_OPTIONS, printoption("td: recv wont", option));
-
-	if (do_dont_resp[option]) {
-		do_dont_resp[option]--;
-		if (do_dont_resp[option] && his_state_is_wont(option))
-			do_dont_resp[option]--;
-	}
-	if (do_dont_resp[option] == 0) {
-	    if (his_want_state_is_will(option)) {
-		/* it is always ok to change to negative state */
-		switch (option) {
-		case TELOPT_ECHO:
-			not42 = 1; /* doesn't seem to be a 4.2 system */
-			break;
-
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryin(0);
-			set_termbuf();
-			break;
-
-#ifdef	LINEMODE
-		case TELOPT_LINEMODE:
-# ifdef	KLUDGELINEMODE
-			/*
-			 * If real linemode is supported, then client is
-			 * asking to turn linemode off.
-			 */
-			if (lmodetype != REAL_LINEMODE)
-				break;
-			lmodetype = KLUDGE_LINEMODE;
-# endif	/* KLUDGELINEMODE */
-			clientstat(TELOPT_LINEMODE, WONT, 0);
-			break;
-#endif	/* LINEMODE */
-
-		case TELOPT_TM:
-			/*
-			 * If we get a WONT TM, and had sent a DO TM,
-			 * don't respond with a DONT TM, just leave it
-			 * as is.  Short circut the state machine to
-			 * achive this.
-			 */
-			set_his_want_state_wont(TELOPT_TM);
-			return;
-
-		case TELOPT_LFLOW:
-			/*
-			 * If we are not going to support flow control
-			 * option, then let peer know that we can't
-			 * change the flow control characters.
-			 */
-			slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XON].defset.flag |= SLC_CANTCHANGE;
-			slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XOFF].defset.flag |= SLC_CANTCHANGE;
-			break;
-
-#ifdef	AUTHENTICATION
-		case TELOPT_AUTHENTICATION:
-			auth_finished(0, AUTH_REJECT);
-			break;
-#endif
-
-		/*
-		 * For options that we might spin waiting for
-		 * sub-negotiation, if the client turns off the
-		 * option rather than responding to the request,
-		 * we have to treat it here as if we got a response
-		 * to the sub-negotiation, (by updating the timers)
-		 * so that we'll break out of the loop.
-		 */
-		case TELOPT_TTYPE:
-			settimer(ttypesubopt);
-			break;
-
-		case TELOPT_TSPEED:
-			settimer(tspeedsubopt);
-			break;
-
-		case TELOPT_XDISPLOC:
-			settimer(xdisplocsubopt);
-			break;
-
-		case TELOPT_OLD_ENVIRON:
-			settimer(oenvironsubopt);
-			break;
-
-		case TELOPT_NEW_ENVIRON:
-			settimer(environsubopt);
-			break;
-
-		default:
-			break;
-		}
-		set_his_want_state_wont(option);
-		if (his_state_is_will(option))
-			send_dont(option, 0);
-	    } else {
-		switch (option) {
-		case TELOPT_TM:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			if (lmodetype < NO_AUTOKLUDGE) {
-				lmodetype = NO_LINEMODE;
-				clientstat(TELOPT_LINEMODE, WONT, 0);
-				send_will(TELOPT_SGA, 1);
-				send_will(TELOPT_ECHO, 1);
-			}
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			break;
-
-#ifdef AUTHENTICATION
-		case TELOPT_AUTHENTICATION:
-			auth_finished(0, AUTH_REJECT);
-			break;
-#endif
-		default:
-			break;
-		}
-	    }
-	}
-	set_his_state_wont(option);
-
-}  /* end of wontoption */
-
-void
-send_will(int option, int init)
-{
-	if (init) {
-		if ((will_wont_resp[option] == 0 && my_state_is_will(option))||
-		    my_want_state_is_will(option))
-			return;
-		set_my_want_state_will(option);
-		will_wont_resp[option]++;
-	}
-	output_data((const char *)will, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send will", option));
-}
-
-#if	!defined(LINEMODE) || !defined(KLUDGELINEMODE)
-/*
- * When we get a DONT SGA, we will try once to turn it
- * back on.  If the other side responds DONT SGA, we
- * leave it at that.  This is so that when we talk to
- * clients that understand KLUDGELINEMODE but not LINEMODE,
- * we'll keep them in char-at-a-time mode.
- */
-int turn_on_sga = 0;
-#endif
-
-void
-dooption(int option)
-{
-	int changeok = 0;
-
-	/*
-	 * Process client input.
-	 */
-
-	DIAG(TD_OPTIONS, printoption("td: recv do", option));
-
-	if (will_wont_resp[option]) {
-		will_wont_resp[option]--;
-		if (will_wont_resp[option] && my_state_is_will(option))
-			will_wont_resp[option]--;
-	}
-	if ((will_wont_resp[option] == 0) && (my_want_state_is_wont(option))) {
-		switch (option) {
-		case TELOPT_ECHO:
-#ifdef	LINEMODE
-# ifdef	KLUDGELINEMODE
-			if (lmodetype == NO_LINEMODE)
-# else
-			if (his_state_is_wont(TELOPT_LINEMODE))
-# endif
-#endif
-			{
-				init_termbuf();
-				tty_setecho(1);
-				set_termbuf();
-			}
-			changeok++;
-			break;
-
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryout(1);
-			set_termbuf();
-			changeok++;
-			break;
-
-		case TELOPT_SGA:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			/*
-			 * If kludge linemode is in use, then we must
-			 * process an incoming do SGA for linemode
-			 * purposes.
-			 */
-			if (lmodetype == KLUDGE_LINEMODE) {
-				/*
-				 * Receipt of "do SGA" in kludge
-				 * linemode is the peer asking us to
-				 * turn off linemode.  Make note of
-				 * the request.
-				 */
-				clientstat(TELOPT_LINEMODE, WONT, 0);
-				/*
-				 * If linemode did not get turned off
-				 * then don't tell peer that we did.
-				 * Breaking here forces a wont SGA to
-				 * be returned.
-				 */
-				if (linemode)
-					break;
-			}
-#else
-			turn_on_sga = 0;
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			changeok++;
-			break;
-
-		case TELOPT_STATUS:
-			changeok++;
-			break;
-
-		case TELOPT_TM:
-			/*
-			 * Special case for TM.  We send a WILL, but
-			 * pretend we sent a WONT.
-			 */
-			send_will(option, 0);
-			set_my_want_state_wont(option);
-			set_my_state_wont(option);
-			return;
-
-		case TELOPT_LOGOUT:
-			/*
-			 * When we get a LOGOUT option, respond
-			 * with a WILL LOGOUT, make sure that
-			 * it gets written out to the network,
-			 * and then just go away...
-			 */
-			set_my_want_state_will(TELOPT_LOGOUT);
-			send_will(TELOPT_LOGOUT, 0);
-			set_my_state_will(TELOPT_LOGOUT);
-			(void)netflush();
-			cleanup(0);
-			/* NOT REACHED */
-			break;
-
-#ifdef	ENCRYPTION
-		case TELOPT_ENCRYPT:
-			changeok++;
-			break;
-#endif	/* ENCRYPTION */
-		case TELOPT_LINEMODE:
-		case TELOPT_TTYPE:
-		case TELOPT_NAWS:
-		case TELOPT_TSPEED:
-		case TELOPT_LFLOW:
-		case TELOPT_XDISPLOC:
-#ifdef	TELOPT_ENVIRON
-		case TELOPT_NEW_ENVIRON:
-#endif
-		case TELOPT_OLD_ENVIRON:
-		default:
-			break;
-		}
-		if (changeok) {
-			set_my_want_state_will(option);
-			send_will(option, 0);
-		} else {
-			will_wont_resp[option]++;
-			send_wont(option, 0);
-		}
-	}
-	set_my_state_will(option);
-
-}  /* end of dooption */
-
-void
-send_wont(int option, int init)
-{
-	if (init) {
-		if ((will_wont_resp[option] == 0 && my_state_is_wont(option)) ||
-		    my_want_state_is_wont(option))
-			return;
-		set_my_want_state_wont(option);
-		will_wont_resp[option]++;
-	}
-	output_data((const char *)wont, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send wont", option));
-}
-
-void
-dontoption(int option)
-{
-	/*
-	 * Process client input.
-	 */
-
-
-	DIAG(TD_OPTIONS, printoption("td: recv dont", option));
-
-	if (will_wont_resp[option]) {
-		will_wont_resp[option]--;
-		if (will_wont_resp[option] && my_state_is_wont(option))
-			will_wont_resp[option]--;
-	}
-	if ((will_wont_resp[option] == 0) && (my_want_state_is_will(option))) {
-		switch (option) {
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryout(0);
-			set_termbuf();
-			break;
-
-		case TELOPT_ECHO:	/* we should stop echoing */
-#ifdef	LINEMODE
-# ifdef	KLUDGELINEMODE
-			if ((lmodetype != REAL_LINEMODE) &&
-			    (lmodetype != KLUDGE_LINEMODE))
-# else
-			if (his_state_is_wont(TELOPT_LINEMODE))
-# endif
-#endif
-			{
-				init_termbuf();
-				tty_setecho(0);
-				set_termbuf();
-			}
-			break;
-
-		case TELOPT_SGA:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			/*
-			 * If kludge linemode is in use, then we
-			 * must process an incoming do SGA for
-			 * linemode purposes.
-			 */
-			if ((lmodetype == KLUDGE_LINEMODE) ||
-			    (lmodetype == KLUDGE_OK)) {
-				/*
-				 * The client is asking us to turn
-				 * linemode on.
-				 */
-				lmodetype = KLUDGE_LINEMODE;
-				clientstat(TELOPT_LINEMODE, WILL, 0);
-				/*
-				 * If we did not turn line mode on,
-				 * then what do we say?  Will SGA?
-				 * This violates design of telnet.
-				 * Gross.  Very Gross.
-				 */
-			}
-			break;
-#else
-			set_my_want_state_wont(option);
-			if (my_state_is_will(option))
-				send_wont(option, 0);
-			set_my_state_wont(option);
-			if (turn_on_sga ^= 1)
-				send_will(option, 1);
-			return;
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-
-		default:
-			break;
-		}
-
-		set_my_want_state_wont(option);
-		if (my_state_is_will(option))
-			send_wont(option, 0);
-	}
-	set_my_state_wont(option);
-
-}  /* end of dontoption */
-
-#ifdef	ENV_HACK
-int env_ovar = -1;
-int env_ovalue = -1;
-#else	/* ENV_HACK */
-# define env_ovar OLD_ENV_VAR
-# define env_ovalue OLD_ENV_VALUE
-#endif	/* ENV_HACK */
-
-/*
- * suboption()
- *
- *	Look at the sub-option buffer, and try to be helpful to the other
- * side.
- *
- *	Currently we recognize:
- *
- *	Terminal type is
- *	Linemode
- *	Window size
- *	Terminal speed
- */
-void
-suboption(void)
-{
-    int subchar;
-
-    DIAG(TD_OPTIONS, {netflush(); printsub('<', subpointer, SB_LEN()+2);});
-
-    subchar = SB_GET();
-    switch (subchar) {
-    case TELOPT_TSPEED: {
-	int xspeed, rspeed;
-
-	if (his_state_is_wont(TELOPT_TSPEED))	/* Ignore if option disabled */
-		break;
-
-	settimer(tspeedsubopt);
-
-	if (SB_EOF() || SB_GET() != TELQUAL_IS)
-		return;
-
-	xspeed = atoi((char *)subpointer);
-
-	while (SB_GET() != ',' && !SB_EOF());
-	if (SB_EOF())
-		return;
-
-	rspeed = atoi((char *)subpointer);
-	clientstat(TELOPT_TSPEED, xspeed, rspeed);
-
-	break;
-
-    }  /* end of case TELOPT_TSPEED */
-
-    case TELOPT_TTYPE: {		/* Yaaaay! */
-	static char terminalname[41];
-
-	if (his_state_is_wont(TELOPT_TTYPE))	/* Ignore if option disabled */
-		break;
-	settimer(ttypesubopt);
-
-	if (SB_EOF() || SB_GET() != TELQUAL_IS) {
-	    return;		/* ??? XXX but, this is the most robust */
-	}
-
-	terminaltype = terminalname;
-
-	while ((terminaltype < (terminalname + sizeof terminalname-1)) &&
-								    !SB_EOF()) {
-	    int c;
-
-	    c = SB_GET();
-	    if (isupper(c)) {
-		c = tolower(c);
-	    }
-	    *terminaltype++ = c;    /* accumulate name */
-	}
-	*terminaltype = 0;
-	terminaltype = terminalname;
-	break;
-    }  /* end of case TELOPT_TTYPE */
-
-    case TELOPT_NAWS: {
-	int xwinsize, ywinsize;
-
-	if (his_state_is_wont(TELOPT_NAWS))	/* Ignore if option disabled */
-		break;
-
-	if (SB_EOF())
-		return;
-	xwinsize = SB_GET() << 8;
-	if (SB_EOF())
-		return;
-	xwinsize |= SB_GET();
-	if (SB_EOF())
-		return;
-	ywinsize = SB_GET() << 8;
-	if (SB_EOF())
-		return;
-	ywinsize |= SB_GET();
-	clientstat(TELOPT_NAWS, xwinsize, ywinsize);
-
-	break;
-
-    }  /* end of case TELOPT_NAWS */
-
-#ifdef	LINEMODE
-    case TELOPT_LINEMODE: {
-	int request;
-
-	if (his_state_is_wont(TELOPT_LINEMODE))	/* Ignore if option disabled */
-		break;
-	/*
-	 * Process linemode suboptions.
-	 */
-	if (SB_EOF())
-	    break;		/* garbage was sent */
-	request = SB_GET();	/* get will/wont */
-
-	if (SB_EOF())
-	    break;		/* another garbage check */
-
-	if (request == LM_SLC) {  /* SLC is not preceeded by WILL or WONT */
-		/*
-		 * Process suboption buffer of slc's
-		 */
-		start_slc(1);
-		do_opt_slc(subpointer, subend - subpointer);
-		(void) end_slc(0);
-		break;
-	} else if (request == LM_MODE) {
-		if (SB_EOF())
-		    return;
-		useeditmode = SB_GET();  /* get mode flag */
-		clientstat(LM_MODE, 0, 0);
-		break;
-	}
-
-	if (SB_EOF())
-	    break;
-	switch (SB_GET()) {  /* what suboption? */
-	case LM_FORWARDMASK:
-		/*
-		 * According to spec, only server can send request for
-		 * forwardmask, and client can only return a positive response.
-		 * So don't worry about it.
-		 */
-
-	default:
-		break;
-	}
-	break;
-    }  /* end of case TELOPT_LINEMODE */
-#endif
-    case TELOPT_STATUS: {
-	int mode;
-
-	if (SB_EOF())
-	    break;
-	mode = SB_GET();
-	switch (mode) {
-	case TELQUAL_SEND:
-	    if (my_state_is_will(TELOPT_STATUS))
-		send_status();
-	    break;
-
-	case TELQUAL_IS:
-	    break;
-
-	default:
-	    break;
-	}
-	break;
-    }  /* end of case TELOPT_STATUS */
-
-    case TELOPT_XDISPLOC: {
-	if (SB_EOF() || SB_GET() != TELQUAL_IS)
-		return;
-	settimer(xdisplocsubopt);
-	subpointer[SB_LEN()] = '\0';
-	(void)setenv("DISPLAY", (char *)subpointer, 1);
-	break;
-    }  /* end of case TELOPT_XDISPLOC */
-
-#ifdef	TELOPT_NEW_ENVIRON
-    case TELOPT_NEW_ENVIRON:
-#endif
-    case TELOPT_OLD_ENVIRON: {
-	int c;
-	char *cp, *varp, *valp;
-
-	if (SB_EOF())
-		return;
-	c = SB_GET();
-	if (c == TELQUAL_IS) {
-		if (subchar == TELOPT_OLD_ENVIRON)
-			settimer(oenvironsubopt);
-		else
-			settimer(environsubopt);
-	} else if (c != TELQUAL_INFO) {
-		return;
-	}
-
-#ifdef	TELOPT_NEW_ENVIRON
-	if (subchar == TELOPT_NEW_ENVIRON) {
-	    while (!SB_EOF()) {
-		c = SB_GET();
-		if ((c == NEW_ENV_VAR) || (c == ENV_USERVAR))
-			break;
-	    }
-	} else
-#endif
-	{
-#ifdef	ENV_HACK
-	    /*
-	     * We only want to do this if we haven't already decided
-	     * whether or not the other side has its VALUE and VAR
-	     * reversed.
-	     */
-	    if (env_ovar < 0) {
-		int last = -1;		/* invalid value */
-		int empty = 0;
-		int got_var = 0, got_value = 0, got_uservar = 0;
-
-		/*
-		 * The other side might have its VALUE and VAR values
-		 * reversed.  To be interoperable, we need to determine
-		 * which way it is.  If the first recognized character
-		 * is a VAR or VALUE, then that will tell us what
-		 * type of client it is.  If the fist recognized
-		 * character is a USERVAR, then we continue scanning
-		 * the suboption looking for two consecutive
-		 * VAR or VALUE fields.  We should not get two
-		 * consecutive VALUE fields, so finding two
-		 * consecutive VALUE or VAR fields will tell us
-		 * what the client is.
-		 */
-		SB_SAVE();
-		while (!SB_EOF()) {
-			c = SB_GET();
-			switch(c) {
-			case OLD_ENV_VAR:
-				if (last < 0 || last == OLD_ENV_VAR
-				    || (empty && (last == OLD_ENV_VALUE)))
-					goto env_ovar_ok;
-				got_var++;
-				last = OLD_ENV_VAR;
-				break;
-			case OLD_ENV_VALUE:
-				if (last < 0 || last == OLD_ENV_VALUE
-				    || (empty && (last == OLD_ENV_VAR)))
-					goto env_ovar_wrong;
-				got_value++;
-				last = OLD_ENV_VALUE;
-				break;
-			case ENV_USERVAR:
-				/* count strings of USERVAR as one */
-				if (last != ENV_USERVAR)
-					got_uservar++;
-				if (empty) {
-					if (last == OLD_ENV_VALUE)
-						goto env_ovar_ok;
-					if (last == OLD_ENV_VAR)
-						goto env_ovar_wrong;
-				}
-				last = ENV_USERVAR;
-				break;
-			case ENV_ESC:
-				if (!SB_EOF())
-					c = SB_GET();
-				/* FALLTHROUGH */
-			default:
-				empty = 0;
-				continue;
-			}
-			empty = 1;
-		}
-		if (empty) {
-			if (last == OLD_ENV_VALUE)
-				goto env_ovar_ok;
-			if (last == OLD_ENV_VAR)
-				goto env_ovar_wrong;
-		}
-		/*
-		 * Ok, the first thing was a USERVAR, and there
-		 * are not two consecutive VAR or VALUE commands,
-		 * and none of the VAR or VALUE commands are empty.
-		 * If the client has sent us a well-formed option,
-		 * then the number of VALUEs received should always
-		 * be less than or equal to the number of VARs and
-		 * USERVARs received.
-		 *
-		 * If we got exactly as many VALUEs as VARs and
-		 * USERVARs, the client has the same definitions.
-		 *
-		 * If we got exactly as many VARs as VALUEs and
-		 * USERVARS, the client has reversed definitions.
-		 */
-		if (got_uservar + got_var == got_value) {
-	    env_ovar_ok:
-			env_ovar = OLD_ENV_VAR;
-			env_ovalue = OLD_ENV_VALUE;
-		} else if (got_uservar + got_value == got_var) {
-	    env_ovar_wrong:
-			env_ovar = OLD_ENV_VALUE;
-			env_ovalue = OLD_ENV_VAR;
-			DIAG(TD_OPTIONS,
-			    output_data("ENVIRON VALUE and VAR are reversed!\r\n"));
-
-		}
-	    }
-	    SB_RESTORE();
-#endif
-
-	    while (!SB_EOF()) {
-		c = SB_GET();
-		if ((c == env_ovar) || (c == ENV_USERVAR))
-			break;
-	    }
-	}
-
-	if (SB_EOF())
-		return;
-
-	cp = varp = (char *)subpointer;
-	valp = 0;
-
-	while (!SB_EOF()) {
-		c = SB_GET();
-		if (subchar == TELOPT_OLD_ENVIRON) {
-			if (c == env_ovar)
-				c = NEW_ENV_VAR;
-			else if (c == env_ovalue)
-				c = NEW_ENV_VALUE;
-		}
-		switch (c) {
-
-		case NEW_ENV_VALUE:
-			*cp = '\0';
-			cp = valp = (char *)subpointer;
-			break;
-
-		case NEW_ENV_VAR:
-		case ENV_USERVAR:
-			*cp = '\0';
-			if (valp)
-				(void)setenv(varp, valp, 1);
-			else
-				unsetenv(varp);
-			cp = varp = (char *)subpointer;
-			valp = 0;
-			break;
-
-		case ENV_ESC:
-			if (SB_EOF())
-				break;
-			c = SB_GET();
-			/* FALLTHROUGH */
-		default:
-			*cp++ = c;
-			break;
-		}
-	}
-	*cp = '\0';
-	if (valp)
-		(void)setenv(varp, valp, 1);
-	else
-		unsetenv(varp);
-	break;
-    }  /* end of case TELOPT_NEW_ENVIRON */
-#ifdef	AUTHENTICATION
-    case TELOPT_AUTHENTICATION:
-	if (SB_EOF())
-		break;
-	switch(SB_GET()) {
-	case TELQUAL_SEND:
-	case TELQUAL_REPLY:
-		/*
-		 * These are sent by us and cannot be sent by
-		 * the client.
-		 */
-		break;
-	case TELQUAL_IS:
-		auth_is(subpointer, SB_LEN());
-		break;
-	case TELQUAL_NAME:
-		auth_name(subpointer, SB_LEN());
-		break;
-	}
-	break;
-#endif
-#ifdef	ENCRYPTION
-    case TELOPT_ENCRYPT:
-	if (SB_EOF())
-		break;
-	switch(SB_GET()) {
-	case ENCRYPT_SUPPORT:
-		encrypt_support(subpointer, SB_LEN());
-		break;
-	case ENCRYPT_IS:
-		encrypt_is(subpointer, SB_LEN());
-		break;
-	case ENCRYPT_REPLY:
-		encrypt_reply(subpointer, SB_LEN());
-		break;
-	case ENCRYPT_START:
-		encrypt_start(subpointer, SB_LEN());
-		break;
-	case ENCRYPT_END:
-		encrypt_end();
-		break;
-	case ENCRYPT_REQSTART:
-		encrypt_request_start(subpointer, SB_LEN());
-		break;
-	case ENCRYPT_REQEND:
-		/*
-		 * We can always send an REQEND so that we cannot
-		 * get stuck encrypting.  We should only get this
-		 * if we have been able to get in the correct mode
-		 * anyhow.
-		 */
-		encrypt_request_end();
-		break;
-	case ENCRYPT_ENC_KEYID:
-		encrypt_enc_keyid(subpointer, SB_LEN());
-		break;
-	case ENCRYPT_DEC_KEYID:
-		encrypt_dec_keyid(subpointer, SB_LEN());
-		break;
-	default:
-		break;
-	}
-	break;
-#endif	/* ENCRYPTION */
-
-    default:
-	break;
-    }  /* end of switch */
-
-}  /* end of suboption */
-
-static void
-doclientstat(void)
-{
-	clientstat(TELOPT_LINEMODE, WILL, 0);
-}
-
-#define	ADD(c)	 *ncp++ = c
-#define	ADD_DATA(c) { *ncp++ = c; if (c == SE || c == IAC) *ncp++ = c; }
-void
-send_status(void)
-{
-	unsigned char statusbuf[256];
-	unsigned char *ncp;
-	unsigned char i;
-
-	ncp = statusbuf;
-
-	netflush();	/* get rid of anything waiting to go out */
-
-	ADD(IAC);
-	ADD(SB);
-	ADD(TELOPT_STATUS);
-	ADD(TELQUAL_IS);
-
-	/*
-	 * We check the want_state rather than the current state,
-	 * because if we received a DO/WILL for an option that we
-	 * don't support, and the other side didn't send a DONT/WONT
-	 * in response to our WONT/DONT, then the "state" will be
-	 * WILL/DO, and the "want_state" will be WONT/DONT.  We
-	 * need to go by the latter.
-	 */
-	for (i = 0; i < (unsigned char)NTELOPTS; i++) {
-		if (my_want_state_is_will(i)) {
-			ADD(WILL);
-			ADD_DATA(i);
-			if (i == IAC)
-				ADD(IAC);
-		}
-		if (his_want_state_is_will(i)) {
-			ADD(DO);
-			ADD_DATA(i);
-			if (i == IAC)
-				ADD(IAC);
-		}
-	}
-
-	if (his_want_state_is_will(TELOPT_LFLOW)) {
-		ADD(SB);
-		ADD(TELOPT_LFLOW);
-		if (flowmode) {
-			ADD(LFLOW_ON);
-		} else {
-			ADD(LFLOW_OFF);
-		}
-		ADD(SE);
-
-		if (restartany >= 0) {
-			ADD(SB);
-			ADD(TELOPT_LFLOW);
-			if (restartany) {
-				ADD(LFLOW_RESTART_ANY);
-			} else {
-				ADD(LFLOW_RESTART_XON);
-			}
-			ADD(SE);
-		}
-	}
-
-#ifdef	LINEMODE
-	if (his_want_state_is_will(TELOPT_LINEMODE)) {
-		unsigned char *cp, *cpe;
-		int len;
-
-		ADD(SB);
-		ADD(TELOPT_LINEMODE);
-		ADD(LM_MODE);
-		ADD_DATA(editmode);
-		ADD(SE);
-
-		ADD(SB);
-		ADD(TELOPT_LINEMODE);
-		ADD(LM_SLC);
-		start_slc(0);
-		send_slc();
-		len = end_slc(&cp);
-		for (cpe = cp + len; cp < cpe; cp++)
-			ADD_DATA(*cp);
-		ADD(SE);
-	}
-#endif	/* LINEMODE */
-
-	ADD(IAC);
-	ADD(SE);
-
-	output_datalen(statusbuf, ncp - statusbuf);
-	netflush();	/* Send it on its way */
-
-	DIAG(TD_OPTIONS,
-		{printsub('>', statusbuf, ncp - statusbuf); netflush();});
-}
-
-/*
- * This function appends data to nfrontp and advances nfrontp.
- * Returns the number of characters written altogether (the
- * buffer may have been flushed in the process).
- */
-
-int
-output_data(const char *format, ...)
-{
-	va_list args;
-	int len;
-	char *buf;
-
-	va_start(args, format);
-	if ((len = vasprintf(&buf, format, args)) == -1)
-		return -1;
-	output_datalen(buf, len);
-	va_end(args);
-	free(buf);
-	return (len);
-}
-
-void
-output_datalen(const char *buf, int len)
-{
-	int remaining, copied;
-	
-	remaining = BUFSIZ - (nfrontp - netobuf);
-	while (len > 0) {
-		/* Free up enough space if the room is too low*/
-		if ((len > BUFSIZ ? BUFSIZ : len) > remaining) {
-			netflush();
-			remaining = BUFSIZ - (nfrontp - netobuf);
-		}
-
-		/* Copy out as much as will fit */
-		copied = remaining > len ? len : remaining;
-		memmove(nfrontp, buf, copied);
-		nfrontp += copied;
-		len -= copied;
-		remaining -= copied;
-		buf += copied;
-	}
-	return;
-}
diff --git a/crypto/telnet/telnetd/sys_term.c b/crypto/telnet/telnetd/sys_term.c
deleted file mode 100644
index 151c5b45215d..000000000000
--- a/crypto/telnet/telnetd/sys_term.c
+++ /dev/null
@@ -1,1339 +0,0 @@
- /*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)sys_term.c	8.4+1 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/tty.h>
-#include <libutil.h>
-#include <stdlib.h>
-#include <utmp.h>
-
-#include "telnetd.h"
-#include "pathnames.h"
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-
-int cleanopen(char *);
-void scrub_env(void);
-
-struct	utmp wtmp;
-
-#ifdef _PATH_WTMP
-char    wtmpf[] = _PATH_WTMP;
-#else
-char	wtmpf[]	= "/var/log/wtmp";
-#endif
-#ifdef _PATH_UTMP
-char    utmpf[] = _PATH_UTMP;
-#else
-char	utmpf[] = "/var/run/utmp";
-#endif
-
-char	*envinit[3];
-extern char **environ;
-
-#define SCPYN(a, b)	(void) strncpy(a, b, sizeof(a))
-#define SCMPN(a, b)	strncmp(a, b, sizeof(a))
-
-#ifdef	t_erase
-#undef	t_erase
-#undef	t_kill
-#undef	t_intrc
-#undef	t_quitc
-#undef	t_startc
-#undef	t_stopc
-#undef	t_eofc
-#undef	t_brkc
-#undef	t_suspc
-#undef	t_dsuspc
-#undef	t_rprntc
-#undef	t_flushc
-#undef	t_werasc
-#undef	t_lnextc
-#endif
-
-#ifndef	USE_TERMIO
-struct termbuf {
-	struct sgttyb sg;
-	struct tchars tc;
-	struct ltchars ltc;
-	int state;
-	int lflags;
-} termbuf, termbuf2;
-# define	cfsetospeed(tp, val)	(tp)->sg.sg_ospeed = (val)
-# define	cfsetispeed(tp, val)	(tp)->sg.sg_ispeed = (val)
-# define	cfgetospeed(tp)		(tp)->sg.sg_ospeed
-# define	cfgetispeed(tp)		(tp)->sg.sg_ispeed
-#else	/* USE_TERMIO */
-# ifndef	TCSANOW
-#  ifdef TCSETS
-#   define	TCSANOW		TCSETS
-#   define	TCSADRAIN	TCSETSW
-#   define	tcgetattr(f, t)	ioctl(f, TCGETS, (char *)t)
-#  else
-#   ifdef TCSETA
-#    define	TCSANOW		TCSETA
-#    define	TCSADRAIN	TCSETAW
-#    define	tcgetattr(f, t)	ioctl(f, TCGETA, (char *)t)
-#   else
-#    define	TCSANOW		TIOCSETA
-#    define	TCSADRAIN	TIOCSETAW
-#    define	tcgetattr(f, t)	ioctl(f, TIOCGETA, (char *)t)
-#   endif
-#  endif
-#  define	tcsetattr(f, a, t)	ioctl(f, a, t)
-#  define	cfsetospeed(tp, val)	(tp)->c_cflag &= ~CBAUD; \
-					(tp)->c_cflag |= (val)
-#  define	cfgetospeed(tp)		((tp)->c_cflag & CBAUD)
-#  ifdef CIBAUD
-#   define	cfsetispeed(tp, val)	(tp)->c_cflag &= ~CIBAUD; \
-					(tp)->c_cflag |= ((val)<<IBSHIFT)
-#   define	cfgetispeed(tp)		(((tp)->c_cflag & CIBAUD)>>IBSHIFT)
-#  else
-#   define	cfsetispeed(tp, val)	(tp)->c_cflag &= ~CBAUD; \
-					(tp)->c_cflag |= (val)
-#   define	cfgetispeed(tp)		((tp)->c_cflag & CBAUD)
-#  endif
-# endif /* TCSANOW */
-struct termios termbuf, termbuf2;	/* pty control structure */
-#endif	/* USE_TERMIO */
-
-#include <sys/types.h>
-#include <libutil.h>
-
-int cleanopen(char *);
-void scrub_env(void);
-static char **addarg(char **, const char *);
-
-/*
- * init_termbuf()
- * copy_termbuf(cp)
- * set_termbuf()
- *
- * These three routines are used to get and set the "termbuf" structure
- * to and from the kernel.  init_termbuf() gets the current settings.
- * copy_termbuf() hands in a new "termbuf" to write to the kernel, and
- * set_termbuf() writes the structure into the kernel.
- */
-
-void
-init_termbuf(void)
-{
-#ifndef	USE_TERMIO
-	(void) ioctl(pty, TIOCGETP, (char *)&termbuf.sg);
-	(void) ioctl(pty, TIOCGETC, (char *)&termbuf.tc);
-	(void) ioctl(pty, TIOCGLTC, (char *)&termbuf.ltc);
-# ifdef	TIOCGSTATE
-	(void) ioctl(pty, TIOCGSTATE, (char *)&termbuf.state);
-# endif
-#else
-	(void) tcgetattr(pty, &termbuf);
-#endif
-	termbuf2 = termbuf;
-}
-
-#if	defined(LINEMODE) && defined(TIOCPKT_IOCTL)
-void
-copy_termbuf(char *cp, size_t len)
-{
-	if (len > sizeof(termbuf))
-		len = sizeof(termbuf);
-	memmove((char *)&termbuf, cp, len);
-	termbuf2 = termbuf;
-}
-#endif	/* defined(LINEMODE) && defined(TIOCPKT_IOCTL) */
-
-void
-set_termbuf(void)
-{
-	/*
-	 * Only make the necessary changes.
-	 */
-#ifndef	USE_TERMIO
-	if (memcmp((char *)&termbuf.sg, (char *)&termbuf2.sg,
-							sizeof(termbuf.sg)))
-		(void) ioctl(pty, TIOCSETN, (char *)&termbuf.sg);
-	if (memcmp((char *)&termbuf.tc, (char *)&termbuf2.tc,
-							sizeof(termbuf.tc)))
-		(void) ioctl(pty, TIOCSETC, (char *)&termbuf.tc);
-	if (memcmp((char *)&termbuf.ltc, (char *)&termbuf2.ltc,
-							sizeof(termbuf.ltc)))
-		(void) ioctl(pty, TIOCSLTC, (char *)&termbuf.ltc);
-	if (termbuf.lflags != termbuf2.lflags)
-		(void) ioctl(pty, TIOCLSET, (char *)&termbuf.lflags);
-#else	/* USE_TERMIO */
-	if (memcmp((char *)&termbuf, (char *)&termbuf2, sizeof(termbuf)))
-		(void) tcsetattr(pty, TCSANOW, &termbuf);
-#endif	/* USE_TERMIO */
-}
-
-
-/*
- * spcset(func, valp, valpp)
- *
- * This function takes various special characters (func), and
- * sets *valp to the current value of that character, and
- * *valpp to point to where in the "termbuf" structure that
- * value is kept.
- *
- * It returns the SLC_ level of support for this function.
- */
-
-#ifndef	USE_TERMIO
-int
-spcset(int func, cc_t *valp, cc_t **valpp)
-{
-	switch(func) {
-	case SLC_EOF:
-		*valp = termbuf.tc.t_eofc;
-		*valpp = (cc_t *)&termbuf.tc.t_eofc;
-		return(SLC_VARIABLE);
-	case SLC_EC:
-		*valp = termbuf.sg.sg_erase;
-		*valpp = (cc_t *)&termbuf.sg.sg_erase;
-		return(SLC_VARIABLE);
-	case SLC_EL:
-		*valp = termbuf.sg.sg_kill;
-		*valpp = (cc_t *)&termbuf.sg.sg_kill;
-		return(SLC_VARIABLE);
-	case SLC_IP:
-		*valp = termbuf.tc.t_intrc;
-		*valpp = (cc_t *)&termbuf.tc.t_intrc;
-		return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_ABORT:
-		*valp = termbuf.tc.t_quitc;
-		*valpp = (cc_t *)&termbuf.tc.t_quitc;
-		return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_XON:
-		*valp = termbuf.tc.t_startc;
-		*valpp = (cc_t *)&termbuf.tc.t_startc;
-		return(SLC_VARIABLE);
-	case SLC_XOFF:
-		*valp = termbuf.tc.t_stopc;
-		*valpp = (cc_t *)&termbuf.tc.t_stopc;
-		return(SLC_VARIABLE);
-	case SLC_AO:
-		*valp = termbuf.ltc.t_flushc;
-		*valpp = (cc_t *)&termbuf.ltc.t_flushc;
-		return(SLC_VARIABLE);
-	case SLC_SUSP:
-		*valp = termbuf.ltc.t_suspc;
-		*valpp = (cc_t *)&termbuf.ltc.t_suspc;
-		return(SLC_VARIABLE);
-	case SLC_EW:
-		*valp = termbuf.ltc.t_werasc;
-		*valpp = (cc_t *)&termbuf.ltc.t_werasc;
-		return(SLC_VARIABLE);
-	case SLC_RP:
-		*valp = termbuf.ltc.t_rprntc;
-		*valpp = (cc_t *)&termbuf.ltc.t_rprntc;
-		return(SLC_VARIABLE);
-	case SLC_LNEXT:
-		*valp = termbuf.ltc.t_lnextc;
-		*valpp = (cc_t *)&termbuf.ltc.t_lnextc;
-		return(SLC_VARIABLE);
-	case SLC_FORW1:
-		*valp = termbuf.tc.t_brkc;
-		*valpp = (cc_t *)&termbuf.ltc.t_lnextc;
-		return(SLC_VARIABLE);
-	case SLC_BRK:
-	case SLC_SYNCH:
-	case SLC_AYT:
-	case SLC_EOR:
-		*valp = (cc_t)0;
-		*valpp = (cc_t *)0;
-		return(SLC_DEFAULT);
-	default:
-		*valp = (cc_t)0;
-		*valpp = (cc_t *)0;
-		return(SLC_NOSUPPORT);
-	}
-}
-
-#else	/* USE_TERMIO */
-
-
-#define	setval(a, b)	*valp = termbuf.c_cc[a]; \
-			*valpp = &termbuf.c_cc[a]; \
-			return(b);
-#define	defval(a) *valp = ((cc_t)a); *valpp = (cc_t *)0; return(SLC_DEFAULT);
-
-int
-spcset(int func, cc_t *valp, cc_t **valpp)
-{
-	switch(func) {
-	case SLC_EOF:
-		setval(VEOF, SLC_VARIABLE);
-	case SLC_EC:
-		setval(VERASE, SLC_VARIABLE);
-	case SLC_EL:
-		setval(VKILL, SLC_VARIABLE);
-	case SLC_IP:
-		setval(VINTR, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_ABORT:
-		setval(VQUIT, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_XON:
-#ifdef	VSTART
-		setval(VSTART, SLC_VARIABLE);
-#else
-		defval(0x13);
-#endif
-	case SLC_XOFF:
-#ifdef	VSTOP
-		setval(VSTOP, SLC_VARIABLE);
-#else
-		defval(0x11);
-#endif
-	case SLC_EW:
-#ifdef	VWERASE
-		setval(VWERASE, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-	case SLC_RP:
-#ifdef	VREPRINT
-		setval(VREPRINT, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-	case SLC_LNEXT:
-#ifdef	VLNEXT
-		setval(VLNEXT, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-	case SLC_AO:
-#if	!defined(VDISCARD) && defined(VFLUSHO)
-# define VDISCARD VFLUSHO
-#endif
-#ifdef	VDISCARD
-		setval(VDISCARD, SLC_VARIABLE|SLC_FLUSHOUT);
-#else
-		defval(0);
-#endif
-	case SLC_SUSP:
-#ifdef	VSUSP
-		setval(VSUSP, SLC_VARIABLE|SLC_FLUSHIN);
-#else
-		defval(0);
-#endif
-#ifdef	VEOL
-	case SLC_FORW1:
-		setval(VEOL, SLC_VARIABLE);
-#endif
-#ifdef	VEOL2
-	case SLC_FORW2:
-		setval(VEOL2, SLC_VARIABLE);
-#endif
-	case SLC_AYT:
-#ifdef	VSTATUS
-		setval(VSTATUS, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-
-	case SLC_BRK:
-	case SLC_SYNCH:
-	case SLC_EOR:
-		defval(0);
-
-	default:
-		*valp = 0;
-		*valpp = 0;
-		return(SLC_NOSUPPORT);
-	}
-}
-#endif	/* USE_TERMIO */
-
-/*
- * getpty()
- *
- * Allocate a pty.  As a side effect, the external character
- * array "line" contains the name of the slave side.
- *
- * Returns the file descriptor of the opened pty.
- */
-char alpha[] = "0123456789abcdefghijklmnopqrstuv";
-char line[16];
-
-int
-getpty(int *ptynum __unused)
-{
-	int p;
-	const char *cp;
-	char *p1, *p2;
-	int i;
-
-	(void) strcpy(line, _PATH_DEV);
-	(void) strcat(line, "ptyXX");
-	p1 = &line[8];
-	p2 = &line[9];
-
-	for (cp = "pqrsPQRS"; *cp; cp++) {
-		struct stat stb;
-
-		*p1 = *cp;
-		*p2 = '0';
-		/*
-		 * This stat() check is just to keep us from
-		 * looping through all 256 combinations if there
-		 * aren't that many ptys available.
-		 */
-		if (stat(line, &stb) < 0)
-			break;
-		for (i = 0; i < 32; i++) {
-			*p2 = alpha[i];
-			p = open(line, 2);
-			if (p > 0) {
-				line[5] = 't';
-				chown(line, 0, 0);
-				chmod(line, 0600);
-					return(p);
-			}
-		}
-	}
-	return(-1);
-}
-
-#ifdef	LINEMODE
-/*
- * tty_flowmode()	Find out if flow control is enabled or disabled.
- * tty_linemode()	Find out if linemode (external processing) is enabled.
- * tty_setlinemod(on)	Turn on/off linemode.
- * tty_isecho()		Find out if echoing is turned on.
- * tty_setecho(on)	Enable/disable character echoing.
- * tty_israw()		Find out if terminal is in RAW mode.
- * tty_binaryin(on)	Turn on/off BINARY on input.
- * tty_binaryout(on)	Turn on/off BINARY on output.
- * tty_isediting()	Find out if line editing is enabled.
- * tty_istrapsig()	Find out if signal trapping is enabled.
- * tty_setedit(on)	Turn on/off line editing.
- * tty_setsig(on)	Turn on/off signal trapping.
- * tty_issofttab()	Find out if tab expansion is enabled.
- * tty_setsofttab(on)	Turn on/off soft tab expansion.
- * tty_islitecho()	Find out if typed control chars are echoed literally
- * tty_setlitecho()	Turn on/off literal echo of control chars
- * tty_tspeed(val)	Set transmit speed to val.
- * tty_rspeed(val)	Set receive speed to val.
- */
-
-
-int
-tty_linemode(void)
-{
-#ifndef	USE_TERMIO
-	return(termbuf.state & TS_EXTPROC);
-#else
-	return(termbuf.c_lflag & EXTPROC);
-#endif
-}
-
-void
-tty_setlinemode(int on)
-{
-#ifdef	TIOCEXT
-	set_termbuf();
-	(void) ioctl(pty, TIOCEXT, (char *)&on);
-	init_termbuf();
-#else	/* !TIOCEXT */
-# ifdef	EXTPROC
-	if (on)
-		termbuf.c_lflag |= EXTPROC;
-	else
-		termbuf.c_lflag &= ~EXTPROC;
-# endif
-#endif	/* TIOCEXT */
-}
-#endif	/* LINEMODE */
-
-int
-tty_isecho(void)
-{
-#ifndef USE_TERMIO
-	return (termbuf.sg.sg_flags & ECHO);
-#else
-	return (termbuf.c_lflag & ECHO);
-#endif
-}
-
-int
-tty_flowmode(void)
-{
-#ifndef USE_TERMIO
-	return(((termbuf.tc.t_startc) > 0 && (termbuf.tc.t_stopc) > 0) ? 1 : 0);
-#else
-	return((termbuf.c_iflag & IXON) ? 1 : 0);
-#endif
-}
-
-int
-tty_restartany(void)
-{
-#ifndef USE_TERMIO
-# ifdef	DECCTQ
-	return((termbuf.lflags & DECCTQ) ? 0 : 1);
-# else
-	return(-1);
-# endif
-#else
-	return((termbuf.c_iflag & IXANY) ? 1 : 0);
-#endif
-}
-
-void
-tty_setecho(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags |= ECHO|CRMOD;
-	else
-		termbuf.sg.sg_flags &= ~(ECHO|CRMOD);
-#else
-	if (on)
-		termbuf.c_lflag |= ECHO;
-	else
-		termbuf.c_lflag &= ~ECHO;
-#endif
-}
-
-int
-tty_israw(void)
-{
-#ifndef USE_TERMIO
-	return(termbuf.sg.sg_flags & RAW);
-#else
-	return(!(termbuf.c_lflag & ICANON));
-#endif
-}
-
-#ifdef	AUTHENTICATION
-#if	defined(NO_LOGIN_F) && defined(LOGIN_R)
-int
-tty_setraw(int on)
-{
-#  ifndef USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags |= RAW;
-	else
-		termbuf.sg.sg_flags &= ~RAW;
-#  else
-	if (on)
-		termbuf.c_lflag &= ~ICANON;
-	else
-		termbuf.c_lflag |= ICANON;
-#  endif
-}
-#endif
-#endif /* AUTHENTICATION */
-
-void
-tty_binaryin(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.lflags |= LPASS8;
-	else
-		termbuf.lflags &= ~LPASS8;
-#else
-	if (on) {
-		termbuf.c_iflag &= ~ISTRIP;
-	} else {
-		termbuf.c_iflag |= ISTRIP;
-	}
-#endif
-}
-
-void
-tty_binaryout(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.lflags |= LLITOUT;
-	else
-		termbuf.lflags &= ~LLITOUT;
-#else
-	if (on) {
-		termbuf.c_cflag &= ~(CSIZE|PARENB);
-		termbuf.c_cflag |= CS8;
-		termbuf.c_oflag &= ~OPOST;
-	} else {
-		termbuf.c_cflag &= ~CSIZE;
-		termbuf.c_cflag |= CS7|PARENB;
-		termbuf.c_oflag |= OPOST;
-	}
-#endif
-}
-
-int
-tty_isbinaryin(void)
-{
-#ifndef	USE_TERMIO
-	return(termbuf.lflags & LPASS8);
-#else
-	return(!(termbuf.c_iflag & ISTRIP));
-#endif
-}
-
-int
-tty_isbinaryout(void)
-{
-#ifndef	USE_TERMIO
-	return(termbuf.lflags & LLITOUT);
-#else
-	return(!(termbuf.c_oflag&OPOST));
-#endif
-}
-
-#ifdef	LINEMODE
-int
-tty_isediting(void)
-{
-#ifndef USE_TERMIO
-	return(!(termbuf.sg.sg_flags & (CBREAK|RAW)));
-#else
-	return(termbuf.c_lflag & ICANON);
-#endif
-}
-
-int
-tty_istrapsig(void)
-{
-#ifndef USE_TERMIO
-	return(!(termbuf.sg.sg_flags&RAW));
-#else
-	return(termbuf.c_lflag & ISIG);
-#endif
-}
-
-void
-tty_setedit(int on)
-{
-#ifndef USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags &= ~CBREAK;
-	else
-		termbuf.sg.sg_flags |= CBREAK;
-#else
-	if (on)
-		termbuf.c_lflag |= ICANON;
-	else
-		termbuf.c_lflag &= ~ICANON;
-#endif
-}
-
-void
-tty_setsig(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		;
-#else
-	if (on)
-		termbuf.c_lflag |= ISIG;
-	else
-		termbuf.c_lflag &= ~ISIG;
-#endif
-}
-#endif	/* LINEMODE */
-
-int
-tty_issofttab(void)
-{
-#ifndef	USE_TERMIO
-	return (termbuf.sg.sg_flags & XTABS);
-#else
-# ifdef	OXTABS
-	return (termbuf.c_oflag & OXTABS);
-# endif
-# ifdef	TABDLY
-	return ((termbuf.c_oflag & TABDLY) == TAB3);
-# endif
-#endif
-}
-
-void
-tty_setsofttab(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags |= XTABS;
-	else
-		termbuf.sg.sg_flags &= ~XTABS;
-#else
-	if (on) {
-# ifdef	OXTABS
-		termbuf.c_oflag |= OXTABS;
-# endif
-# ifdef	TABDLY
-		termbuf.c_oflag &= ~TABDLY;
-		termbuf.c_oflag |= TAB3;
-# endif
-	} else {
-# ifdef	OXTABS
-		termbuf.c_oflag &= ~OXTABS;
-# endif
-# ifdef	TABDLY
-		termbuf.c_oflag &= ~TABDLY;
-		termbuf.c_oflag |= TAB0;
-# endif
-	}
-#endif
-}
-
-int
-tty_islitecho(void)
-{
-#ifndef	USE_TERMIO
-	return (!(termbuf.lflags & LCTLECH));
-#else
-# ifdef	ECHOCTL
-	return (!(termbuf.c_lflag & ECHOCTL));
-# endif
-# ifdef	TCTLECH
-	return (!(termbuf.c_lflag & TCTLECH));
-# endif
-# if	!defined(ECHOCTL) && !defined(TCTLECH)
-	return (0);	/* assumes ctl chars are echoed '^x' */
-# endif
-#endif
-}
-
-void
-tty_setlitecho(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.lflags &= ~LCTLECH;
-	else
-		termbuf.lflags |= LCTLECH;
-#else
-# ifdef	ECHOCTL
-	if (on)
-		termbuf.c_lflag &= ~ECHOCTL;
-	else
-		termbuf.c_lflag |= ECHOCTL;
-# endif
-# ifdef	TCTLECH
-	if (on)
-		termbuf.c_lflag &= ~TCTLECH;
-	else
-		termbuf.c_lflag |= TCTLECH;
-# endif
-#endif
-}
-
-int
-tty_iscrnl(void)
-{
-#ifndef	USE_TERMIO
-	return (termbuf.sg.sg_flags & CRMOD);
-#else
-	return (termbuf.c_iflag & ICRNL);
-#endif
-}
-
-/*
- * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD).
- */
-#if B4800 != 4800
-#define	DECODE_BAUD
-#endif
-
-#ifdef	DECODE_BAUD
-
-/*
- * A table of available terminal speeds
- */
-struct termspeeds {
-	int	speed;
-	int	value;
-} termspeeds[] = {
-	{ 0,      B0 },      { 50,    B50 },    { 75,     B75 },
-	{ 110,    B110 },    { 134,   B134 },   { 150,    B150 },
-	{ 200,    B200 },    { 300,   B300 },   { 600,    B600 },
-	{ 1200,   B1200 },   { 1800,  B1800 },  { 2400,   B2400 },
-	{ 4800,   B4800 },
-#ifdef	B7200
-	{ 7200,  B7200 },
-#endif
-	{ 9600,   B9600 },
-#ifdef	B14400
-	{ 14400,  B14400 },
-#endif
-#ifdef	B19200
-	{ 19200,  B19200 },
-#endif
-#ifdef	B28800
-	{ 28800,  B28800 },
-#endif
-#ifdef	B38400
-	{ 38400,  B38400 },
-#endif
-#ifdef	B57600
-	{ 57600,  B57600 },
-#endif
-#ifdef	B115200
-	{ 115200, B115200 },
-#endif
-#ifdef	B230400
-	{ 230400, B230400 },
-#endif
-	{ -1,     0 }
-};
-#endif	/* DECODE_BAUD */
-
-void
-tty_tspeed(int val)
-{
-#ifdef	DECODE_BAUD
-	struct termspeeds *tp;
-
-	for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++)
-		;
-	if (tp->speed == -1)	/* back up to last valid value */
-		--tp;
-	cfsetospeed(&termbuf, tp->value);
-#else	/* DECODE_BAUD */
-	cfsetospeed(&termbuf, val);
-#endif	/* DECODE_BAUD */
-}
-
-void
-tty_rspeed(int val)
-{
-#ifdef	DECODE_BAUD
-	struct termspeeds *tp;
-
-	for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++)
-		;
-	if (tp->speed == -1)	/* back up to last valid value */
-		--tp;
-	cfsetispeed(&termbuf, tp->value);
-#else	/* DECODE_BAUD */
-	cfsetispeed(&termbuf, val);
-#endif	/* DECODE_BAUD */
-}
-
-/*
- * getptyslave()
- *
- * Open the slave side of the pty, and do any initialization
- * that is necessary.
- */
-static void
-getptyslave(void)
-{
-	int t = -1;
-	char erase;
-
-# ifdef	LINEMODE
-	int waslm;
-# endif
-# ifdef	TIOCGWINSZ
-	struct winsize ws;
-	extern int def_row, def_col;
-# endif
-	extern int def_tspeed, def_rspeed;
-	/*
-	 * Opening the slave side may cause initilization of the
-	 * kernel tty structure.  We need remember the state of
-	 * 	if linemode was turned on
-	 *	terminal window size
-	 *	terminal speed
-	 *	erase character
-	 * so that we can re-set them if we need to.
-	 */
-# ifdef	LINEMODE
-	waslm = tty_linemode();
-# endif
-	erase = termbuf.c_cc[VERASE];
-
-	/*
-	 * Make sure that we don't have a controlling tty, and
-	 * that we are the session (process group) leader.
-	 */
-# ifdef	TIOCNOTTY
-	t = open(_PATH_TTY, O_RDWR);
-	if (t >= 0) {
-		(void) ioctl(t, TIOCNOTTY, (char *)0);
-		(void) close(t);
-	}
-# endif
-
-	t = cleanopen(line);
-	if (t < 0)
-		fatalperror(net, line);
-
-
-	/*
-	 * set up the tty modes as we like them to be.
-	 */
-	init_termbuf();
-# ifdef	TIOCGWINSZ
-	if (def_row || def_col) {
-		memset((char *)&ws, 0, sizeof(ws));
-		ws.ws_col = def_col;
-		ws.ws_row = def_row;
-		(void)ioctl(t, TIOCSWINSZ, (char *)&ws);
-	}
-# endif
-
-	/*
-	 * Settings for sgtty based systems
-	 */
-# ifndef	USE_TERMIO
-	termbuf.sg.sg_flags |= CRMOD|ANYP|ECHO|XTABS;
-# endif	/* USE_TERMIO */
-
-	/*
-	 * Settings for all other termios/termio based
-	 * systems, other than 4.4BSD.  In 4.4BSD the
-	 * kernel does the initial terminal setup.
-	 */
-	tty_rspeed((def_rspeed > 0) ? def_rspeed : 9600);
-	tty_tspeed((def_tspeed > 0) ? def_tspeed : 9600);
-	if (erase)
-		termbuf.c_cc[VERASE] = erase;
-# ifdef	LINEMODE
-	if (waslm)
-		tty_setlinemode(1);
-# endif	/* LINEMODE */
-
-	/*
-	 * Set the tty modes, and make this our controlling tty.
-	 */
-	set_termbuf();
-	if (login_tty(t) == -1)
-		fatalperror(net, "login_tty");
-	if (net > 2)
-		(void) close(net);
-#ifdef	AUTHENTICATION
-#if	defined(NO_LOGIN_F) && defined(LOGIN_R)
-	/*
-	 * Leave the pty open so that we can write out the rlogin
-	 * protocol for /bin/login, if the authentication works.
-	 */
-#else
-	if (pty > 2) {
-		(void) close(pty);
-		pty = -1;
-	}
-#endif
-#endif /* AUTHENTICATION */
-}
-
-#ifndef	O_NOCTTY
-#define	O_NOCTTY	0
-#endif
-/*
- * Open the specified slave side of the pty,
- * making sure that we have a clean tty.
- */
-int
-cleanopen(char *li)
-{
-	int t;
-
-	/*
-	 * Make sure that other people can't open the
-	 * slave side of the connection.
-	 */
-	(void) chown(li, 0, 0);
-	(void) chmod(li, 0600);
-
-	(void) revoke(li);
-
-	t = open(line, O_RDWR|O_NOCTTY);
-
-	if (t < 0)
-		return(-1);
-
-	return(t);
-}
-
-/*
- * startslave(host)
- *
- * Given a hostname, do whatever
- * is necessary to startup the login process on the slave side of the pty.
- */
-
-/* ARGSUSED */
-void
-startslave(char *host, int autologin, char *autoname)
-{
-	int i;
-
-#ifdef	AUTHENTICATION
-	if (!autoname || !autoname[0])
-		autologin = 0;
-
-	if (autologin < auth_level) {
-		fatal(net, "Authorization failed");
-		exit(1);
-	}
-#endif
-
-
-	if ((i = fork()) < 0)
-		fatalperror(net, "fork");
-	if (i) {
-	} else {
-		getptyslave();
-		start_login(host, autologin, autoname);
-		/*NOTREACHED*/
-	}
-}
-
-void
-init_env(void)
-{
-	char **envp;
-
-	envp = envinit;
-	if ((*envp = getenv("TZ")))
-		*envp++ -= 3;
-	*envp = 0;
-	environ = envinit;
-}
-
-
-/*
- * start_login(host)
- *
- * Assuming that we are now running as a child processes, this
- * function will turn us into the login process.
- */
-
-#ifndef AUTHENTICATION
-#define undef1 __unused
-#else
-#define undef1
-#endif
-
-void
-start_login(char *host undef1, int autologin undef1, char *name undef1)
-{
-	char **argv;
-
-	scrub_env();
-
-	/*
-	 * -h : pass on name of host.
-	 *		WARNING:  -h is accepted by login if and only if
-	 *			getuid() == 0.
-	 * -p : don't clobber the environment (so terminal type stays set).
-	 *
-	 * -f : force this login, he has already been authenticated
-	 */
-	argv = addarg(0, "login");
-
-#if	!defined(NO_LOGIN_H)
-#ifdef	AUTHENTICATION
-# if	defined(NO_LOGIN_F) && defined(LOGIN_R)
-	/*
-	 * Don't add the "-h host" option if we are going
-	 * to be adding the "-r host" option down below...
-	 */
-	if ((auth_level < 0) || (autologin != AUTH_VALID))
-# endif
-	{
-		argv = addarg(argv, "-h");
-		argv = addarg(argv, host);
-	}
-#endif /* AUTHENTICATION */
-#endif
-#if	!defined(NO_LOGIN_P)
-	argv = addarg(argv, "-p");
-#endif
-#ifdef	LINEMODE
-	/*
-	 * Set the environment variable "LINEMODE" to either
-	 * "real" or "kludge" if we are operating in either
-	 * real or kludge linemode.
-	 */
-	if (lmodetype == REAL_LINEMODE)
-		setenv("LINEMODE", "real", 1);
-# ifdef KLUDGELINEMODE
-	else if (lmodetype == KLUDGE_LINEMODE || lmodetype == KLUDGE_OK)
-		setenv("LINEMODE", "kludge", 1);
-# endif
-#endif
-#ifdef	BFTPDAEMON
-	/*
-	 * Are we working as the bftp daemon?  If so, then ask login
-	 * to start bftp instead of shell.
-	 */
-	if (bftpd) {
-		argv = addarg(argv, "-e");
-		argv = addarg(argv, BFTPPATH);
-	} else
-#endif
-#ifdef	AUTHENTICATION
-	if (auth_level >= 0 && autologin == AUTH_VALID) {
-# if	!defined(NO_LOGIN_F)
-		argv = addarg(argv, "-f");
-		argv = addarg(argv, "--");
-		argv = addarg(argv, name);
-# else
-#  if defined(LOGIN_R)
-		/*
-		 * We don't have support for "login -f", but we
-		 * can fool /bin/login into thinking that we are
-		 * rlogind, and allow us to log in without a
-		 * password.  The rlogin protocol expects
-		 *	local-user\0remote-user\0term/speed\0
-		 */
-
-		if (pty > 2) {
-			char *cp;
-			char speed[128];
-			int isecho, israw, xpty, len;
-			extern int def_rspeed;
-#  ifndef LOGIN_HOST
-			/*
-			 * Tell login that we are coming from "localhost".
-			 * If we passed in the real host name, then the
-			 * user would have to allow .rhost access from
-			 * every machine that they want authenticated
-			 * access to work from, which sort of defeats
-			 * the purpose of an authenticated login...
-			 * So, we tell login that the session is coming
-			 * from "localhost", and the user will only have
-			 * to have "localhost" in their .rhost file.
-			 */
-#			define LOGIN_HOST "localhost"
-#  endif
-			argv = addarg(argv, "-r");
-			argv = addarg(argv, LOGIN_HOST);
-
-			xpty = pty;
-			pty = 0;
-			init_termbuf();
-			isecho = tty_isecho();
-			israw = tty_israw();
-			if (isecho || !israw) {
-				tty_setecho(0);		/* Turn off echo */
-				tty_setraw(1);		/* Turn on raw */
-				set_termbuf();
-			}
-			len = strlen(name)+1;
-			write(xpty, name, len);
-			write(xpty, name, len);
-			snprintf(speed, sizeof(speed),
-				"%s/%d", (cp = getenv("TERM")) ? cp : "",
-				(def_rspeed > 0) ? def_rspeed : 9600);
-			len = strlen(speed)+1;
-			write(xpty, speed, len);
-
-			if (isecho || !israw) {
-				init_termbuf();
-				tty_setecho(isecho);
-				tty_setraw(israw);
-				set_termbuf();
-				if (!israw) {
-					/*
-					 * Write a newline to ensure
-					 * that login will be able to
-					 * read the line...
-					 */
-					write(xpty, "\n", 1);
-				}
-			}
-			pty = xpty;
-		}
-#  else
-		argv = addarg(argv, "--");
-		argv = addarg(argv, name);
-#  endif
-# endif
-	} else
-#endif
-	if (getenv("USER")) {
- 		argv = addarg(argv, "--");
-		argv = addarg(argv, getenv("USER"));
-#if	defined(LOGIN_ARGS) && defined(NO_LOGIN_P)
-		{
-			char **cpp;
-			for (cpp = environ; *cpp; cpp++)
-				argv = addarg(argv, *cpp);
-		}
-#endif
-		/*
-		 * Assume that login will set the USER variable
-		 * correctly.  For SysV systems, this means that
-		 * USER will no longer be set, just LOGNAME by
-		 * login.  (The problem is that if the auto-login
-		 * fails, and the user then specifies a different
-		 * account name, he can get logged in with both
-		 * LOGNAME and USER in his environment, but the
-		 * USER value will be wrong.
-		 */
-		unsetenv("USER");
-	}
-#ifdef	AUTHENTICATION
-#if	defined(NO_LOGIN_F) && defined(LOGIN_R)
-	if (pty > 2)
-		close(pty);
-#endif
-#endif /* AUTHENTICATION */
-	closelog();
-
-	if (altlogin == NULL) {
-		altlogin = _PATH_LOGIN;
-	}
-	execv(altlogin, argv);
-
-	syslog(LOG_ERR, "%s: %m", altlogin);
-	fatalperror(net, altlogin);
-	/*NOTREACHED*/
-}
-
-static char **
-addarg(char **argv, const char *val)
-{
-	char **cpp;
-
-	if (argv == NULL) {
-		/*
-		 * 10 entries, a leading length, and a null
-		 */
-		argv = (char **)malloc(sizeof(*argv) * 12);
-		if (argv == NULL)
-			return(NULL);
-		*argv++ = (char *)10;
-		*argv = (char *)0;
-	}
-	for (cpp = argv; *cpp; cpp++)
-		;
-	if (cpp == &argv[(long)argv[-1]]) {
-		--argv;
-		*argv = (char *)((long)(*argv) + 10);
-		argv = (char **)realloc(argv, sizeof(*argv)*((long)(*argv) + 2));
-		if (argv == NULL)
-			return(NULL);
-		argv++;
-		cpp = &argv[(long)argv[-1] - 10];
-	}
-	*cpp++ = strdup(val);
-	*cpp = 0;
-	return(argv);
-}
-
-/*
- * scrub_env()
- *
- * We only accept the environment variables listed below.
- */
-void
-scrub_env(void)
-{
-	static const char *rej[] = {
-		"TERMCAP=/",
-		NULL
-	};
-
-	static const char *acc[] = {
-		"XAUTH=", "XAUTHORITY=", "DISPLAY=",
-		"TERM=",
-		"EDITOR=",
-		"PAGER=",
-		"LOGNAME=",
-		"POSIXLY_CORRECT=",
-		"PRINTER=",
-		NULL
-	};
-
-	char **cpp, **cpp2;
-	const char **p;
- 
- 	for (cpp2 = cpp = environ; *cpp; cpp++) {
-		int reject_it = 0;
-
-		for(p = rej; *p; p++)
-			if(strncmp(*cpp, *p, strlen(*p)) == 0) {
-				reject_it = 1;
-				break;
-			}
-		if (reject_it)
-			continue;
-
-		for(p = acc; *p; p++)
-			if(strncmp(*cpp, *p, strlen(*p)) == 0)
-				break;
-		if(*p != NULL)
- 			*cpp2++ = *cpp;
- 	}
-	*cpp2 = NULL;
-}
-
-/*
- * cleanup()
- *
- * This is the routine to call when we are all through, to
- * clean up anything that needs to be cleaned up.
- */
-/* ARGSUSED */
-void
-cleanup(int sig __unused)
-{
-	char *p;
-	sigset_t mask;
-
-	p = line + sizeof(_PATH_DEV) - 1;
-	/*
-	 * Block all signals before clearing the utmp entry.  We don't want to
-	 * be called again after calling logout() and then not add the wtmp
-	 * entry because of not finding the corresponding entry in utmp.
-	 */
-	sigfillset(&mask);
-	sigprocmask(SIG_SETMASK, &mask, NULL);
-	if (logout(p))
-		logwtmp(p, "", "");
-	(void)chmod(line, 0666);
-	(void)chown(line, 0, 0);
-	*p = 'p';
-	(void)chmod(line, 0666);
-	(void)chown(line, 0, 0);
-	(void) shutdown(net, 2);
-	_exit(1);
-}
diff --git a/crypto/telnet/telnetd/telnetd.8 b/crypto/telnet/telnetd/telnetd.8
deleted file mode 100644
index b11fbac76059..000000000000
--- a/crypto/telnet/telnetd/telnetd.8
+++ /dev/null
@@ -1,587 +0,0 @@
-.\" Copyright (c) 1983, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)telnetd.8	8.4 (Berkeley) 6/1/94
-.\" $FreeBSD$
-.\"
-.Dd January 27, 2000
-.Dt TELNETD 8
-.Os
-.Sh NAME
-.Nm telnetd
-.Nd DARPA
-.Tn TELNET
-protocol server
-.Sh SYNOPSIS
-.Nm /usr/libexec/telnetd
-.Op Fl BUhlkn
-.Op Fl D Ar debugmode
-.Op Fl S Ar tos
-.Op Fl X Ar authtype
-.Op Fl a Ar authmode
-.Op Fl edebug
-.Op Fl p Ar loginprog
-.Op Fl u Ar len
-.Op Fl debug Op Ar port
-.Sh DESCRIPTION
-The
-.Nm
-command is a server which supports the
-.Tn DARPA
-standard
-.Tn TELNET
-virtual terminal protocol.
-.Nm Telnetd
-is normally invoked by the internet server (see
-.Xr inetd 8 )
-for requests to connect to the
-.Tn TELNET
-port as indicated by the
-.Pa /etc/services
-file (see
-.Xr services 5 ) .
-The
-.Fl debug
-option may be used to start up
-.Nm
-manually, instead of through
-.Xr inetd 8 .
-If started up this way,
-.Ar port
-may be specified to run
-.Nm
-on an alternate
-.Tn TCP
-port number.
-.Pp
-The
-.Nm
-command accepts the following options:
-.Bl -tag -width indent
-.It Fl a Ar authmode
-This option may be used for specifying what mode should
-be used for authentication.
-Note that this option is only useful if
-.Nm
-has been compiled with support for the
-.Dv AUTHENTICATION
-option.
-There are several valid values for
-.Ar authmode :
-.Bl -tag -width debug
-.It Cm debug
-Turn on authentication debugging code.
-.It Cm user
-Only allow connections when the remote user
-can provide valid authentication information
-to identify the remote user,
-and is allowed access to the specified account
-without providing a password.
-.It Cm valid
-Only allow connections when the remote user
-can provide valid authentication information
-to identify the remote user.
-The
-.Xr login 1
-command will provide any additional user verification
-needed if the remote user is not allowed automatic
-access to the specified account.
-.It Cm other
-Only allow connections that supply some authentication information.
-This option is currently not supported
-by any of the existing authentication mechanisms,
-and is thus the same as specifying
-.Fl a
-.Cm valid .
-.It Cm none
-This is the default state.
-Authentication information is not required.
-If no or insufficient authentication information
-is provided, then the
-.Xr login 1
-program will provide the necessary user
-verification.
-.It Cm off
-Disable the authentication code.
-All user verification will happen through the
-.Xr login 1
-program.
-.El
-.It Fl B
-Specify bftp server mode.  In this mode,
-.Nm
-causes login to start a
-.Xr bftp 1
-session rather than the user's
-normal shell.  In bftp daemon mode normal
-logins are not supported, and it must be used
-on a port other than the normal
-.Tn TELNET
-port.
-.It Fl D Ar debugmode
-This option may be used for debugging purposes.
-This allows
-.Nm
-to print out debugging information
-to the connection, allowing the user to see what
-.Nm
-is doing.
-There are several possible values for
-.Ar debugmode :
-.Bl -tag -width exercise
-.It Cm options
-Print information about the negotiation of
-.Tn TELNET
-options.
-.It Cm report
-Print the
-.Cm options
-information, plus some additional information
-about what processing is going on.
-.It Cm netdata
-Display the data stream received by
-.Nm .
-.It Cm ptydata
-Display data written to the pty.
-.It Cm exercise
-Has not been implemented yet.
-.El
-.It Fl debug
-Enable debugging on each socket created by
-.Nm
-(see
-.Dv SO_DEBUG
-in
-.Xr socket 2 ) .
-.It Fl edebug
-If
-.Nm
-has been compiled with support for data encryption, then the
-.Fl edebug
-option may be used to enable encryption debugging code.
-.It Fl h
-Disable the printing of host-specific information before
-login has been completed.
-.It Fl k
-This option is only useful if
-.Nm
-has been compiled with both linemode and kludge linemode
-support.  If the
-.Fl k
-option is specified, then if the remote client does not
-support the
-.Dv LINEMODE
-option, then
-.Nm
-will operate in character at a time mode.
-It will still support kludge linemode, but will only
-go into kludge linemode if the remote client requests
-it.
-(This is done by the client sending
-.Dv DONT SUPPRESS-GO-AHEAD
-and
-.Dv DONT ECHO . )
-The
-.Fl k
-option is most useful when there are remote clients
-that do not support kludge linemode, but pass the heuristic
-(if they respond with
-.Dv WILL TIMING-MARK
-in response to a
-.Dv DO TIMING-MARK )
-for kludge linemode support.
-.It Fl l
-Specify line mode. Try to force clients to use line-
-at-a-time mode.
-If the
-.Dv LINEMODE
-option is not supported, it will go
-into kludge linemode.
-.It Fl n
-Disable
-.Dv TCP
-keep-alives.  Normally
-.Nm
-enables the
-.Tn TCP
-keep-alive mechanism to probe connections that
-have been idle for some period of time to determine
-if the client is still there, so that idle connections
-from machines that have crashed or can no longer
-be reached may be cleaned up.
-.It Fl p Ar loginprog
-Specify an alternate
-.Xr login 1
-command to run to complete the login.  The alternate command must
-understand the same command arguments as the standard login.
-.It Fl S Ar tos
-.It Fl u Ar len
-This option is used to specify the size of the field
-in the
-.Dv utmp
-structure that holds the remote host name.
-If the resolved host name is longer than
-.Ar len ,
-the dotted decimal value will be used instead.
-This allows hosts with very long host names that
-overflow this field to still be uniquely identified.
-Specifying
-.Fl u0
-indicates that only dotted decimal addresses
-should be put into the
-.Pa utmp
-file.
-.It Fl U
-This option causes
-.Nm
-to refuse connections from addresses that
-cannot be mapped back into a symbolic name
-via the
-.Xr gethostbyaddr 3
-routine.
-.It Fl X Ar authtype
-This option is only valid if
-.Nm
-has been built with support for the authentication option.
-It disables the use of
-.Ar authtype
-authentication, and
-can be used to temporarily disable
-a specific authentication type without having to recompile
-.Nm .
-.El
-.Pp
-.Nm Telnetd
-operates by allocating a pseudo-terminal device (see
-.Xr pty 4 )
-for a client, then creating a login process which has
-the slave side of the pseudo-terminal as
-.Dv stdin ,
-.Dv stdout
-and
-.Dv stderr .
-.Nm Telnetd
-manipulates the master side of the pseudo-terminal,
-implementing the
-.Tn TELNET
-protocol and passing characters
-between the remote client and the login process.
-.Pp
-When a
-.Tn TELNET
-session is started up,
-.Nm
-sends
-.Tn TELNET
-options to the client side indicating
-a willingness to do the
-following
-.Tn TELNET
-options, which are described in more detail below:
-.Bd -literal -offset indent
-DO AUTHENTICATION
-WILL ENCRYPT
-DO TERMINAL TYPE
-DO TSPEED
-DO XDISPLOC
-DO NEW-ENVIRON
-DO ENVIRON
-WILL SUPPRESS GO AHEAD
-DO ECHO
-DO LINEMODE
-DO NAWS
-WILL STATUS
-DO LFLOW
-DO TIMING-MARK
-.Ed
-.Pp
-The pseudo-terminal allocated to the client is configured
-to operate in
-.Dq cooked
-mode, and with
-.Dv XTABS and
-.Dv CRMOD
-enabled (see
-.Xr tty 4 ) .
-.Pp
-.Nm Telnetd
-has support for enabling locally the following
-.Tn TELNET
-options:
-.Bl -tag -width "DO AUTHENTICATION"
-.It "WILL ECHO"
-When the
-.Dv LINEMODE
-option is enabled, a
-.Dv WILL ECHO
-or
-.Dv WONT ECHO
-will be sent to the client to indicate the
-current state of terminal echoing.
-When terminal echo is not desired, a
-.Dv WILL ECHO
-is sent to indicate that
-.Nm
-will take care of echoing any data that needs to be
-echoed to the terminal, and then nothing is echoed.
-When terminal echo is desired, a
-.Dv WONT ECHO
-is sent to indicate that
-.Nm
-will not be doing any terminal echoing, so the
-client should do any terminal echoing that is needed.
-.It "WILL BINARY"
-Indicate that the client is willing to send a
-8 bits of data, rather than the normal 7 bits
-of the Network Virtual Terminal.
-.It "WILL SGA"
-Indicate that it will not be sending
-.Dv IAC GA ,
-go ahead, commands.
-.It "WILL STATUS"
-Indicate a willingness to send the client, upon
-request, of the current status of all
-.Tn TELNET
-options.
-.It "WILL TIMING-MARK"
-Whenever a
-.Dv DO TIMING-MARK
-command is received, it is always responded
-to with a
-.Dv WILL TIMING-MARK .
-.It "WILL LOGOUT"
-When a
-.Dv DO LOGOUT
-is received, a
-.Dv WILL LOGOUT
-is sent in response, and the
-.Tn TELNET
-session is shut down.
-.It "WILL ENCRYPT"
-Only sent if
-.Nm
-is compiled with support for data encryption, and
-indicates a willingness to decrypt
-the data stream.
-.El
-.Pp
-.Nm Telnetd
-has support for enabling remotely the following
-.Tn TELNET
-options:
-.Bl -tag -width "DO AUTHENTICATION"
-.It "DO BINARY"
-Sent to indicate that
-.Nm
-is willing to receive an 8 bit data stream.
-.It "DO LFLOW"
-Requests that the client handle flow control
-characters remotely.
-.It "DO ECHO"
-This is not really supported, but is sent to identify a
-.Bx 4.2
-.Xr telnet 1
-client, which will improperly respond with
-.Dv WILL ECHO .
-If a
-.Dv WILL ECHO
-is received, a
-.Dv DONT ECHO
-will be sent in response.
-.It "DO TERMINAL-TYPE"
-Indicate a desire to be able to request the
-name of the type of terminal that is attached
-to the client side of the connection.
-.It "DO SGA"
-Indicate that it does not need to receive
-.Dv IAC GA ,
-the go ahead command.
-.It "DO NAWS"
-Requests that the client inform the server when
-the window (display) size changes.
-.It "DO TERMINAL-SPEED"
-Indicate a desire to be able to request information
-about the speed of the serial line to which
-the client is attached.
-.It "DO XDISPLOC"
-Indicate a desire to be able to request the name
-of the X Window System display that is associated with
-the telnet client.
-.It "DO NEW-ENVIRON"
-Indicate a desire to be able to request environment
-variable information, as described in RFC 1572.
-.It "DO ENVIRON"
-Indicate a desire to be able to request environment
-variable information, as described in RFC 1408.
-.It "DO LINEMODE"
-Only sent if
-.Nm
-is compiled with support for linemode, and
-requests that the client do line by line processing.
-.It "DO TIMING-MARK"
-Only sent if
-.Nm
-is compiled with support for both linemode and
-kludge linemode, and the client responded with
-.Dv WONT LINEMODE .
-If the client responds with
-.Dv WILL TM ,
-the it is assumed that the client supports
-kludge linemode.
-Note that the
-.Op Fl k
-option can be used to disable this.
-.It "DO AUTHENTICATION"
-Only sent if
-.Nm
-is compiled with support for authentication, and
-indicates a willingness to receive authentication
-information for automatic login.
-.It "DO ENCRYPT"
-Only sent if
-.Nm
-is compiled with support for data encryption, and
-indicates a willingness to decrypt
-the data stream.
-.El
-.Sh NOTES
-By default
-.Nm
-will read the
-.Em \&he ,
-.Em \&hn ,
-and
-.Em \&im
-capabilities from
-.Pa /etc/gettytab
-and use that information (if present) to determine
-what to display before the login: prompt. You can
-also use a System V style
-.Pa /etc/issue
-file by using the
-.Em \&if
-capability, which will override
-.Em \&im .
-The information specified in either
-.Em \&im
-or
-.Em \&if
-will be displayed to both console and remote logins.
-.\" .Sh ENVIRONMENT
-.Sh FILES
-.Bl -tag -width /usr/ucb/bftp -compact
-.It Pa /etc/services
-.It Pa /etc/gettytab
-.It Pa /etc/iptos
-(if supported)
-.It Pa /usr/ucb/bftp
-(if supported)
-.El
-.Sh "SEE ALSO"
-.Xr bftp 1 ,
-.Xr login 1 ,
-.Xr gettytab 5 ,
-.Xr telnet 1
-(if supported)
-.Sh STANDARDS
-.Bl -tag -compact -width RFC-1572
-.It Cm RFC-854
-.Tn TELNET
-PROTOCOL SPECIFICATION
-.It Cm RFC-855
-TELNET OPTION SPECIFICATIONS
-.It Cm RFC-856
-TELNET BINARY TRANSMISSION
-.It Cm RFC-857
-TELNET ECHO OPTION
-.It Cm RFC-858
-TELNET SUPPRESS GO AHEAD OPTION
-.It Cm RFC-859
-TELNET STATUS OPTION
-.It Cm RFC-860
-TELNET TIMING MARK OPTION
-.It Cm RFC-861
-TELNET EXTENDED OPTIONS - LIST OPTION
-.It Cm RFC-885
-TELNET END OF RECORD OPTION
-.It Cm RFC-1073
-Telnet Window Size Option
-.It Cm RFC-1079
-Telnet Terminal Speed Option
-.It Cm RFC-1091
-Telnet Terminal-Type Option
-.It Cm RFC-1096
-Telnet X Display Location Option
-.It Cm RFC-1123
-Requirements for Internet Hosts -- Application and Support
-.It Cm RFC-1184
-Telnet Linemode Option
-.It Cm RFC-1372
-Telnet Remote Flow Control Option
-.It Cm RFC-1416
-Telnet Authentication Option
-.It Cm RFC-1411
-Telnet Authentication: Kerberos Version 4
-.It Cm RFC-1412
-Telnet Authentication: SPX
-.It Cm RFC-1571
-Telnet Environment Option Interoperability Issues
-.It Cm RFC-1572
-Telnet Environment Option
-.El
-.Sh BUGS
-Some
-.Tn TELNET
-commands are only partially implemented.
-.Pp
-Because of bugs in the original
-.Bx 4.2
-.Xr telnet 1 ,
-.Nm
-performs some dubious protocol exchanges to try to discover if the remote
-client is, in fact, a
-.Bx 4.2
-.Xr telnet 1 .
-.Pp
-Binary mode
-has no common interpretation except between similar operating systems
-(Unix in this case).
-.Pp
-The terminal type name received from the remote client is converted to
-lower case.
-.Pp
-.Nm Telnetd
-never sends
-.Tn TELNET
-.Dv IAC GA
-(go ahead) commands.
-.Sh HISTORY
-IPv6 support was added by WIDE/KAME project.
diff --git a/crypto/telnet/telnetd/telnetd.c b/crypto/telnet/telnetd/telnetd.c
deleted file mode 100644
index bdb76d7a786d..000000000000
--- a/crypto/telnet/telnetd/telnetd.c
+++ /dev/null
@@ -1,1226 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)telnetd.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "telnetd.h"
-#include "pathnames.h"
-
-#include <sys/mman.h>
-#include <err.h>
-#include <libutil.h>
-#include <paths.h>
-#include <termcap.h>
-#include <utmp.h>
-
-#include <arpa/inet.h>
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-int	auth_level = 0;
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-#include <libtelnet/misc.h>
-
-char	remote_hostname[MAXHOSTNAMELEN];
-size_t	utmp_len = sizeof(remote_hostname) - 1;
-int	registerd_host_only = 0;
-
-
-/*
- * I/O data buffers,
- * pointers, and counters.
- */
-char	ptyibuf[BUFSIZ], *ptyip = ptyibuf;
-char	ptyibuf2[BUFSIZ];
-
-int readstream(int, char *, int);
-void doit(struct sockaddr *);
-int terminaltypeok(char *);
-
-int	hostinfo = 1;			/* do we print login banner? */
-
-static int debug = 0;
-int keepalive = 1;
-const char *altlogin;
-
-void doit(struct sockaddr *);
-int terminaltypeok(char *);
-void startslave(char *, int, char *);
-extern void usage(void);
-static void _gettermname(void);
-
-/*
- * The string to pass to getopt().  We do it this way so
- * that only the actual options that we support will be
- * passed off to getopt().
- */
-char valid_opts[] = {
-	'd', ':', 'h', 'k', 'n', 'p', ':', 'S', ':', 'u', ':', 'U',
-	'4', '6',
-#ifdef	AUTHENTICATION
-	'a', ':', 'X', ':',
-#endif
-#ifdef BFTPDAEMON
-	'B',
-#endif
-#ifdef DIAGNOSTICS
-	'D', ':',
-#endif
-#ifdef	ENCRYPTION
-	'e', ':',
-#endif
-#ifdef	LINEMODE
-	'l',
-#endif
-	'\0'
-};
-
-int family = AF_INET;
-
-#ifndef	MAXHOSTNAMELEN
-#define	MAXHOSTNAMELEN 256
-#endif	/* MAXHOSTNAMELEN */
-
-char *hostname;
-char host_name[MAXHOSTNAMELEN];
-
-extern void telnet(int, int, char *);
-
-int level;
-char user_name[256];
-
-int
-main(int argc, char *argv[])
-{
-	struct sockaddr_storage from;
-	int on = 1, fromlen;
-	int ch;
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-	int tos = -1;
-#endif
-
-	pfrontp = pbackp = ptyobuf;
-	netip = netibuf;
-	nfrontp = nbackp = netobuf;
-#ifdef	ENCRYPTION
-	nclearto = 0;
-#endif	/* ENCRYPTION */
-
-	/*
-	 * This initialization causes linemode to default to a configuration
-	 * that works on all telnet clients, including the FreeBSD client.
-	 * This is not quite the same as the telnet client issuing a "mode
-	 * character" command, but has most of the same benefits, and is
-	 * preferable since some clients (like usofts) don't have the
-	 * mode character command anyway and linemode breaks things.
-	 * The most notable symptom of fix is that csh "set filec" operations
-	 * like <ESC> (filename completion) and ^D (choices) keys now work
-	 * in telnet sessions and can be used more than once on the same line.
-	 * CR/LF handling is also corrected in some termio modes.  This 
-	 * change resolves problem reports bin/771 and bin/1037.
-	 */
-
-	linemode=1;	/*Default to mode that works on bulk of clients*/
-
-	while ((ch = getopt(argc, argv, valid_opts)) != -1) {
-		switch(ch) {
-
-#ifdef	AUTHENTICATION
-		case 'a':
-			/*
-			 * Check for required authentication level
-			 */
-			if (strcmp(optarg, "debug") == 0) {
-				extern int auth_debug_mode;
-				auth_debug_mode = 1;
-			} else if (strcasecmp(optarg, "none") == 0) {
-				auth_level = 0;
-			} else if (strcasecmp(optarg, "other") == 0) {
-				auth_level = AUTH_OTHER;
-			} else if (strcasecmp(optarg, "user") == 0) {
-				auth_level = AUTH_USER;
-			} else if (strcasecmp(optarg, "valid") == 0) {
-				auth_level = AUTH_VALID;
-			} else if (strcasecmp(optarg, "off") == 0) {
-				/*
-				 * This hack turns off authentication
-				 */
-				auth_level = -1;
-			} else {
-				warnx("unknown authorization level for -a");
-			}
-			break;
-#endif	/* AUTHENTICATION */
-
-#ifdef BFTPDAEMON
-		case 'B':
-			bftpd++;
-			break;
-#endif /* BFTPDAEMON */
-
-		case 'd':
-			if (strcmp(optarg, "ebug") == 0) {
-				debug++;
-				break;
-			}
-			usage();
-			/* NOTREACHED */
-			break;
-
-#ifdef DIAGNOSTICS
-		case 'D':
-			/*
-			 * Check for desired diagnostics capabilities.
-			 */
-			if (!strcmp(optarg, "report")) {
-				diagnostic |= TD_REPORT|TD_OPTIONS;
-			} else if (!strcmp(optarg, "exercise")) {
-				diagnostic |= TD_EXERCISE;
-			} else if (!strcmp(optarg, "netdata")) {
-				diagnostic |= TD_NETDATA;
-			} else if (!strcmp(optarg, "ptydata")) {
-				diagnostic |= TD_PTYDATA;
-			} else if (!strcmp(optarg, "options")) {
-				diagnostic |= TD_OPTIONS;
-			} else {
-				usage();
-				/* NOT REACHED */
-			}
-			break;
-#endif /* DIAGNOSTICS */
-
-#ifdef	ENCRYPTION
-		case 'e':
-			if (strcmp(optarg, "debug") == 0) {
-				extern int encrypt_debug_mode;
-				encrypt_debug_mode = 1;
-				break;
-			}
-			usage();
-			/* NOTREACHED */
-			break;
-#endif	/* ENCRYPTION */
-
-		case 'h':
-			hostinfo = 0;
-			break;
-
-#ifdef	LINEMODE
-		case 'l':
-			alwayslinemode = 1;
-			break;
-#endif	/* LINEMODE */
-
-		case 'k':
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			lmodetype = NO_AUTOKLUDGE;
-#else
-			/* ignore -k option if built without kludge linemode */
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			break;
-
-		case 'n':
-			keepalive = 0;
-			break;
-
-		case 'p':
-			altlogin = optarg;
-			break;
-
-		case 'S':
-#ifdef	HAS_GETTOS
-			if ((tos = parsetos(optarg, "tcp")) < 0)
-				warnx("%s%s%s",
-					"bad TOS argument '", optarg,
-					"'; will try to use default TOS");
-#else
-			warnx("TOS option unavailable; -S flag not supported");
-#endif
-			break;
-
-		case 'u':
-			utmp_len = (size_t)atoi(optarg);
-			if (utmp_len >= sizeof(remote_hostname))
-				utmp_len = sizeof(remote_hostname) - 1;
-			break;
-
-		case 'U':
-			registerd_host_only = 1;
-			break;
-
-#ifdef	AUTHENTICATION
-		case 'X':
-			/*
-			 * Check for invalid authentication types
-			 */
-			auth_disable_name(optarg);
-			break;
-#endif	/* AUTHENTICATION */
-
-		case '4':
-			family = AF_INET;
-			break;
-
-#ifdef INET6
-		case '6':
-			family = AF_INET6;
-			break;
-#endif
-
-		default:
-			warnx("%c: unknown option", ch);
-			/* FALLTHROUGH */
-		case '?':
-			usage();
-			/* NOTREACHED */
-		}
-	}
-
-	argc -= optind;
-	argv += optind;
-
-	if (debug) {
-	    int s, ns, foo, error;
-	    const char *service = "telnet";
-	    struct addrinfo hints, *res;
-
-	    if (argc > 1) {
-		usage();
-		/* NOT REACHED */
-	    } else if (argc == 1)
-		service = *argv;
-
-	    memset(&hints, 0, sizeof(hints));
-	    hints.ai_flags = AI_PASSIVE;
-	    hints.ai_family = family;
-	    hints.ai_socktype = SOCK_STREAM;
-	    hints.ai_protocol = 0;
-	    error = getaddrinfo(NULL, service, &hints, &res);
-
-	    if (error) {
-		errx(1, "tcp/%s: %s\n", service, gai_strerror(error));
-		if (error == EAI_SYSTEM)
-		    errx(1, "tcp/%s: %s\n", service, strerror(errno));
-		usage();
-	    }
-
-	    s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
-	    if (s < 0)
-		    err(1, "socket");
-	    (void) setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
-				(char *)&on, sizeof(on));
-	    if (bind(s, res->ai_addr, res->ai_addrlen) < 0)
-		err(1, "bind");
-	    if (listen(s, 1) < 0)
-		err(1, "listen");
-	    foo = res->ai_addrlen;
-	    ns = accept(s, res->ai_addr, &foo);
-	    if (ns < 0)
-		err(1, "accept");
-	    (void) dup2(ns, 0);
-	    (void) close(ns);
-	    (void) close(s);
-#ifdef convex
-	} else if (argc == 1) {
-		; /* VOID*/		/* Just ignore the host/port name */
-#endif
-	} else if (argc > 0) {
-		usage();
-		/* NOT REACHED */
-	}
-
-	openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON);
-	fromlen = sizeof (from);
-	if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) {
-		warn("getpeername");
-		_exit(1);
-	}
-	if (keepalive &&
-	    setsockopt(0, SOL_SOCKET, SO_KEEPALIVE,
-			(char *)&on, sizeof (on)) < 0) {
-		syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m");
-	}
-
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-	if (from.ss_family == AF_INET) {
-# if	defined(HAS_GETTOS)
-		struct tosent *tp;
-		if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
-			tos = tp->t_tos;
-# endif
-		if (tos < 0)
-			tos = 020;	/* Low Delay bit */
-		if (tos
-		   && (setsockopt(0, IPPROTO_IP, IP_TOS,
-				  (char *)&tos, sizeof(tos)) < 0)
-		   && (errno != ENOPROTOOPT) )
-			syslog(LOG_WARNING, "setsockopt (IP_TOS): %m");
-	}
-#endif	/* defined(IPPROTO_IP) && defined(IP_TOS) */
-	net = 0;
-	doit((struct sockaddr *)&from);
-	/* NOTREACHED */
-	return(0);
-}  /* end of main */
-
-	void
-usage()
-{
-	fprintf(stderr, "usage: telnetd");
-#ifdef	AUTHENTICATION
-	fprintf(stderr, " [-a (debug|other|user|valid|off|none)]\n\t");
-#endif
-#ifdef BFTPDAEMON
-	fprintf(stderr, " [-B]");
-#endif
-	fprintf(stderr, " [-debug]");
-#ifdef DIAGNOSTICS
-	fprintf(stderr, " [-D (options|report|exercise|netdata|ptydata)]\n\t");
-#endif
-#ifdef	AUTHENTICATION
-	fprintf(stderr, " [-edebug]");
-#endif
-	fprintf(stderr, " [-h]");
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-	fprintf(stderr, " [-k]");
-#endif
-#ifdef LINEMODE
-	fprintf(stderr, " [-l]");
-#endif
-	fprintf(stderr, " [-n]");
-	fprintf(stderr, "\n\t");
-#ifdef	HAS_GETTOS
-	fprintf(stderr, " [-S tos]");
-#endif
-#ifdef	AUTHENTICATION
-	fprintf(stderr, " [-X auth-type]");
-#endif
-	fprintf(stderr, " [-u utmp_hostname_length] [-U]");
-	fprintf(stderr, " [port]\n");
-	exit(1);
-}
-
-/*
- * getterminaltype
- *
- *	Ask the other end to send along its terminal type and speed.
- * Output is the variable terminaltype filled in.
- */
-static unsigned char ttytype_sbbuf[] = {
-	IAC, SB, TELOPT_TTYPE, TELQUAL_SEND, IAC, SE
-};
-
-
-#ifndef	AUTHENTICATION
-#define undef2 __unused
-#else
-#define undef2
-#endif
-
-static int
-getterminaltype(char *name undef2)
-{
-    int retval = -1;
-
-    settimer(baseline);
-#ifdef	AUTHENTICATION
-    /*
-     * Handle the Authentication option before we do anything else.
-     */
-    send_do(TELOPT_AUTHENTICATION, 1);
-    while (his_will_wont_is_changing(TELOPT_AUTHENTICATION))
-	ttloop();
-    if (his_state_is_will(TELOPT_AUTHENTICATION)) {
-	retval = auth_wait(name);
-    }
-#endif
-
-#ifdef	ENCRYPTION
-    send_will(TELOPT_ENCRYPT, 1);
-#endif	/* ENCRYPTION */
-    send_do(TELOPT_TTYPE, 1);
-    send_do(TELOPT_TSPEED, 1);
-    send_do(TELOPT_XDISPLOC, 1);
-    send_do(TELOPT_NEW_ENVIRON, 1);
-    send_do(TELOPT_OLD_ENVIRON, 1);
-    while (
-#ifdef	ENCRYPTION
-	   his_do_dont_is_changing(TELOPT_ENCRYPT) ||
-#endif	/* ENCRYPTION */
-	   his_will_wont_is_changing(TELOPT_TTYPE) ||
-	   his_will_wont_is_changing(TELOPT_TSPEED) ||
-	   his_will_wont_is_changing(TELOPT_XDISPLOC) ||
-	   his_will_wont_is_changing(TELOPT_NEW_ENVIRON) ||
-	   his_will_wont_is_changing(TELOPT_OLD_ENVIRON)) {
-	ttloop();
-    }
-#ifdef	ENCRYPTION
-    /*
-     * Wait for the negotiation of what type of encryption we can
-     * send with.  If autoencrypt is not set, this will just return.
-     */
-    if (his_state_is_will(TELOPT_ENCRYPT)) {
-	encrypt_wait();
-    }
-#endif	/* ENCRYPTION */
-    if (his_state_is_will(TELOPT_TSPEED)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_TSPEED, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    if (his_state_is_will(TELOPT_XDISPLOC)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_XDISPLOC, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    if (his_state_is_will(TELOPT_NEW_ENVIRON)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_NEW_ENVIRON, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    else if (his_state_is_will(TELOPT_OLD_ENVIRON)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_OLD_ENVIRON, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    if (his_state_is_will(TELOPT_TTYPE)) {
-
-	output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf);
-	DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2,
-					sizeof ttytype_sbbuf - 2););
-    }
-    if (his_state_is_will(TELOPT_TSPEED)) {
-	while (sequenceIs(tspeedsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_XDISPLOC)) {
-	while (sequenceIs(xdisplocsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_NEW_ENVIRON)) {
-	while (sequenceIs(environsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_OLD_ENVIRON)) {
-	while (sequenceIs(oenvironsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_TTYPE)) {
-	char first[256], last[256];
-
-	while (sequenceIs(ttypesubopt, baseline))
-	    ttloop();
-
-	/*
-	 * If the other side has already disabled the option, then
-	 * we have to just go with what we (might) have already gotten.
-	 */
-	if (his_state_is_will(TELOPT_TTYPE) && !terminaltypeok(terminaltype)) {
-	    (void) strncpy(first, terminaltype, sizeof(first)-1);
-	    first[sizeof(first)-1] = '\0';
-	    for(;;) {
-		/*
-		 * Save the unknown name, and request the next name.
-		 */
-		(void) strncpy(last, terminaltype, sizeof(last)-1);
-		last[sizeof(last)-1] = '\0';
-		_gettermname();
-		if (terminaltypeok(terminaltype))
-		    break;
-		if ((strncmp(last, terminaltype, sizeof(last)) == 0) ||
-		    his_state_is_wont(TELOPT_TTYPE)) {
-		    /*
-		     * We've hit the end.  If this is the same as
-		     * the first name, just go with it.
-		     */
-		    if (strncmp(first, terminaltype, sizeof(first)) == 0)
-			break;
-		    /*
-		     * Get the terminal name one more time, so that
-		     * RFC1091 compliant telnets will cycle back to
-		     * the start of the list.
-		     */
-		     _gettermname();
-		    if (strncmp(first, terminaltype, sizeof(first)) != 0) {
-			(void) strncpy(terminaltype, first, sizeof(terminaltype)-1);
-			terminaltype[sizeof(terminaltype)-1] = '\0';
-		    }
-		    break;
-		}
-	    }
-	}
-    }
-    return(retval);
-}  /* end of getterminaltype */
-
-static void
-_gettermname(void)
-{
-    /*
-     * If the client turned off the option,
-     * we can't send another request, so we
-     * just return.
-     */
-    if (his_state_is_wont(TELOPT_TTYPE))
-	return;
-    settimer(baseline);
-    output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf);
-    DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2,
-					sizeof ttytype_sbbuf - 2););
-    while (sequenceIs(ttypesubopt, baseline))
-	ttloop();
-}
-
-int
-terminaltypeok(char *s)
-{
-    char buf[1024];
-
-    if (terminaltype == NULL)
-	return(1);
-
-    /*
-     * tgetent() will return 1 if the type is known, and
-     * 0 if it is not known.  If it returns -1, it couldn't
-     * open the database.  But if we can't open the database,
-     * it won't help to say we failed, because we won't be
-     * able to verify anything else.  So, we treat -1 like 1.
-     */
-    if (tgetent(buf, s) == 0)
-	return(0);
-    return(1);
-}
-
-/*
- * Get a pty, scan input lines.
- */
-void
-doit(struct sockaddr *who)
-{
-	int err_; /* XXX */
-	int ptynum;
-
-	/*
-	 * Find an available pty to use.
-	 */
-#ifndef	convex
-	pty = getpty(&ptynum);
-	if (pty < 0)
-		fatal(net, "All network ports in use");
-#else
-	for (;;) {
-		char *lp;
-
-		if ((lp = getpty()) == NULL)
-			fatal(net, "Out of ptys");
-
-		if ((pty = open(lp, 2)) >= 0) {
-			strlcpy(line,lp,sizeof(line));
-			line[5] = 't';
-			break;
-		}
-	}
-#endif
-
-	/* get name of connected client */
-	if (realhostname_sa(remote_hostname, sizeof(remote_hostname) - 1,
-	    who, who->sa_len) == HOSTNAME_INVALIDADDR && registerd_host_only)
-		fatal(net, "Couldn't resolve your address into a host name.\r\n\
-	Please contact your net administrator");
-	remote_hostname[sizeof(remote_hostname) - 1] = '\0';
-
-	trimdomain(remote_hostname, UT_HOSTSIZE);
-	if (!isdigit(remote_hostname[0]) && strlen(remote_hostname) > utmp_len)
-		err_ = getnameinfo(who, who->sa_len, remote_hostname,
-				  sizeof(remote_hostname), NULL, 0,
-				  NI_NUMERICHOST|NI_WITHSCOPEID);
-		/* XXX: do 'err_' check */
-
-	(void) gethostname(host_name, sizeof(host_name) - 1);
-	host_name[sizeof(host_name) - 1] = '\0';
-	hostname = host_name;
-
-#ifdef	AUTHENTICATION
-#ifdef	ENCRYPTION
-/* The above #ifdefs should actually be "or"'ed, not "and"'ed.
- * This is a byproduct of needing "#ifdef" and not "#if defined()"
- * for unifdef. XXX MarkM
- */
-	auth_encrypt_init(hostname, remote_hostname, "TELNETD", 1);
-#endif
-#endif
-
-	init_env();
-	/*
-	 * get terminal type.
-	 */
-	*user_name = 0;
-	level = getterminaltype(user_name);
-	setenv("TERM", terminaltype ? terminaltype : "network", 1);
-
-	telnet(net, pty, remote_hostname);	/* begin server process */
-
-	/*NOTREACHED*/
-}  /* end of doit */
-
-/*
- * Main loop.  Select from pty and network, and
- * hand data to telnet receiver finite state machine.
- */
-void
-telnet(int f, int p, char *host)
-{
-	int on = 1;
-#define	TABBUFSIZ	512
-	char	defent[TABBUFSIZ];
-	char	defstrs[TABBUFSIZ];
-#undef	TABBUFSIZ
-	char *HE;
-	char *HN;
-	char *IM;
-	int nfd;
-
-	/*
-	 * Initialize the slc mapping table.
-	 */
-	get_slc_defaults();
-
-	/*
-	 * Do some tests where it is desireable to wait for a response.
-	 * Rather than doing them slowly, one at a time, do them all
-	 * at once.
-	 */
-	if (my_state_is_wont(TELOPT_SGA))
-		send_will(TELOPT_SGA, 1);
-	/*
-	 * Is the client side a 4.2 (NOT 4.3) system?  We need to know this
-	 * because 4.2 clients are unable to deal with TCP urgent data.
-	 *
-	 * To find out, we send out a "DO ECHO".  If the remote system
-	 * answers "WILL ECHO" it is probably a 4.2 client, and we note
-	 * that fact ("WILL ECHO" ==> that the client will echo what
-	 * WE, the server, sends it; it does NOT mean that the client will
-	 * echo the terminal input).
-	 */
-	send_do(TELOPT_ECHO, 1);
-
-#ifdef	LINEMODE
-	if (his_state_is_wont(TELOPT_LINEMODE)) {
-		/* Query the peer for linemode support by trying to negotiate
-		 * the linemode option.
-		 */
-		linemode = 0;
-		editmode = 0;
-		send_do(TELOPT_LINEMODE, 1);  /* send do linemode */
-	}
-#endif	/* LINEMODE */
-
-	/*
-	 * Send along a couple of other options that we wish to negotiate.
-	 */
-	send_do(TELOPT_NAWS, 1);
-	send_will(TELOPT_STATUS, 1);
-	flowmode = 1;		/* default flow control state */
-	restartany = -1;	/* uninitialized... */
-	send_do(TELOPT_LFLOW, 1);
-
-	/*
-	 * Spin, waiting for a response from the DO ECHO.  However,
-	 * some REALLY DUMB telnets out there might not respond
-	 * to the DO ECHO.  So, we spin looking for NAWS, (most dumb
-	 * telnets so far seem to respond with WONT for a DO that
-	 * they don't understand...) because by the time we get the
-	 * response, it will already have processed the DO ECHO.
-	 * Kludge upon kludge.
-	 */
-	while (his_will_wont_is_changing(TELOPT_NAWS))
-		ttloop();
-
-	/*
-	 * But...
-	 * The client might have sent a WILL NAWS as part of its
-	 * startup code; if so, we'll be here before we get the
-	 * response to the DO ECHO.  We'll make the assumption
-	 * that any implementation that understands about NAWS
-	 * is a modern enough implementation that it will respond
-	 * to our DO ECHO request; hence we'll do another spin
-	 * waiting for the ECHO option to settle down, which is
-	 * what we wanted to do in the first place...
-	 */
-	if (his_want_state_is_will(TELOPT_ECHO) &&
-	    his_state_is_will(TELOPT_NAWS)) {
-		while (his_will_wont_is_changing(TELOPT_ECHO))
-			ttloop();
-	}
-	/*
-	 * On the off chance that the telnet client is broken and does not
-	 * respond to the DO ECHO we sent, (after all, we did send the
-	 * DO NAWS negotiation after the DO ECHO, and we won't get here
-	 * until a response to the DO NAWS comes back) simulate the
-	 * receipt of a will echo.  This will also send a WONT ECHO
-	 * to the client, since we assume that the client failed to
-	 * respond because it believes that it is already in DO ECHO
-	 * mode, which we do not want.
-	 */
-	if (his_want_state_is_will(TELOPT_ECHO)) {
-		DIAG(TD_OPTIONS, output_data("td: simulating recv\r\n"));
-		willoption(TELOPT_ECHO);
-	}
-
-	/*
-	 * Finally, to clean things up, we turn on our echo.  This
-	 * will break stupid 4.2 telnets out of local terminal echo.
-	 */
-
-	if (my_state_is_wont(TELOPT_ECHO))
-		send_will(TELOPT_ECHO, 1);
-
-	/*
-	 * Turn on packet mode
-	 */
-	(void) ioctl(p, TIOCPKT, (char *)&on);
-
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-	/*
-	 * Continuing line mode support.  If client does not support
-	 * real linemode, attempt to negotiate kludge linemode by sending
-	 * the do timing mark sequence.
-	 */
-	if (lmodetype < REAL_LINEMODE)
-		send_do(TELOPT_TM, 1);
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-
-	/*
-	 * Call telrcv() once to pick up anything received during
-	 * terminal type negotiation, 4.2/4.3 determination, and
-	 * linemode negotiation.
-	 */
-	telrcv();
-
-	(void) ioctl(f, FIONBIO, (char *)&on);
-	(void) ioctl(p, FIONBIO, (char *)&on);
-
-#if	defined(SO_OOBINLINE)
-	(void) setsockopt(net, SOL_SOCKET, SO_OOBINLINE,
-				(char *)&on, sizeof on);
-#endif	/* defined(SO_OOBINLINE) */
-
-#ifdef	SIGTSTP
-	(void) signal(SIGTSTP, SIG_IGN);
-#endif
-#ifdef	SIGTTOU
-	/*
-	 * Ignoring SIGTTOU keeps the kernel from blocking us
-	 * in ttioct() in /sys/tty.c.
-	 */
-	(void) signal(SIGTTOU, SIG_IGN);
-#endif
-
-	(void) signal(SIGCHLD, cleanup);
-
-#ifdef  TIOCNOTTY
-	{
-		int t;
-		t = open(_PATH_TTY, O_RDWR);
-		if (t >= 0) {
-			(void) ioctl(t, TIOCNOTTY, (char *)0);
-			(void) close(t);
-		}
-	}
-#endif
-
-	/*
-	 * Show banner that getty never gave.
-	 *
-	 * We put the banner in the pty input buffer.  This way, it
-	 * gets carriage return null processing, etc., just like all
-	 * other pty --> client data.
-	 */
-
-	if (getent(defent, "default") == 1) {
-		char *cp=defstrs;
-
-		HE = Getstr("he", &cp);
-		HN = Getstr("hn", &cp);
-		IM = Getstr("im", &cp);
-		if (HN && *HN)
-			(void) strlcpy(host_name, HN, sizeof(host_name));
-		if (IM == 0)
-			IM = strdup("");
-	} else {
-		IM = strdup(DEFAULT_IM);
-		HE = 0;
-	}
-	edithost(HE, host_name);
-	if (hostinfo && *IM)
-		putf(IM, ptyibuf2);
-
-	if (pcc)
-		(void) strncat(ptyibuf2, ptyip, pcc+1);
-	ptyip = ptyibuf2;
-	pcc = strlen(ptyip);
-#ifdef	LINEMODE
-	/*
-	 * Last check to make sure all our states are correct.
-	 */
-	init_termbuf();
-	localstat();
-#endif	/* LINEMODE */
-
-	DIAG(TD_REPORT, output_data("td: Entering processing loop\r\n"));
-
-	/*
-	 * Startup the login process on the slave side of the terminal
-	 * now.  We delay this until here to insure option negotiation
-	 * is complete.
-	 */
-	startslave(host, level, user_name);
-
-	nfd = ((f > p) ? f : p) + 1;
-	for (;;) {
-		fd_set ibits, obits, xbits;
-		int c;
-
-		if (ncc < 0 && pcc < 0)
-			break;
-
-		FD_ZERO(&ibits);
-		FD_ZERO(&obits);
-		FD_ZERO(&xbits);
-		/*
-		 * Never look for input if there's still
-		 * stuff in the corresponding output buffer
-		 */
-		if (nfrontp - nbackp || pcc > 0) {
-			FD_SET(f, &obits);
-		} else {
-			FD_SET(p, &ibits);
-		}
-		if (pfrontp - pbackp || ncc > 0) {
-			FD_SET(p, &obits);
-		} else {
-			FD_SET(f, &ibits);
-		}
-		if (!SYNCHing) {
-			FD_SET(f, &xbits);
-		}
-		if ((c = select(nfd, &ibits, &obits, &xbits,
-						(struct timeval *)0)) < 1) {
-			if (c == -1) {
-				if (errno == EINTR) {
-					continue;
-				}
-			}
-			sleep(5);
-			continue;
-		}
-
-		/*
-		 * Any urgent data?
-		 */
-		if (FD_ISSET(net, &xbits)) {
-		    SYNCHing = 1;
-		}
-
-		/*
-		 * Something to read from the network...
-		 */
-		if (FD_ISSET(net, &ibits)) {
-#if	!defined(SO_OOBINLINE)
-			/*
-			 * In 4.2 (and 4.3 beta) systems, the
-			 * OOB indication and data handling in the kernel
-			 * is such that if two separate TCP Urgent requests
-			 * come in, one byte of TCP data will be overlaid.
-			 * This is fatal for Telnet, but we try to live
-			 * with it.
-			 *
-			 * In addition, in 4.2 (and...), a special protocol
-			 * is needed to pick up the TCP Urgent data in
-			 * the correct sequence.
-			 *
-			 * What we do is:  if we think we are in urgent
-			 * mode, we look to see if we are "at the mark".
-			 * If we are, we do an OOB receive.  If we run
-			 * this twice, we will do the OOB receive twice,
-			 * but the second will fail, since the second
-			 * time we were "at the mark", but there wasn't
-			 * any data there (the kernel doesn't reset
-			 * "at the mark" until we do a normal read).
-			 * Once we've read the OOB data, we go ahead
-			 * and do normal reads.
-			 *
-			 * There is also another problem, which is that
-			 * since the OOB byte we read doesn't put us
-			 * out of OOB state, and since that byte is most
-			 * likely the TELNET DM (data mark), we would
-			 * stay in the TELNET SYNCH (SYNCHing) state.
-			 * So, clocks to the rescue.  If we've "just"
-			 * received a DM, then we test for the
-			 * presence of OOB data when the receive OOB
-			 * fails (and AFTER we did the normal mode read
-			 * to clear "at the mark").
-			 */
-		    if (SYNCHing) {
-			int atmark;
-
-			(void) ioctl(net, SIOCATMARK, (char *)&atmark);
-			if (atmark) {
-			    ncc = recv(net, netibuf, sizeof (netibuf), MSG_OOB);
-			    if ((ncc == -1) && (errno == EINVAL)) {
-				ncc = read(net, netibuf, sizeof (netibuf));
-				if (sequenceIs(didnetreceive, gotDM)) {
-				    SYNCHing = stilloob(net);
-				}
-			    }
-			} else {
-			    ncc = read(net, netibuf, sizeof (netibuf));
-			}
-		    } else {
-			ncc = read(net, netibuf, sizeof (netibuf));
-		    }
-		    settimer(didnetreceive);
-#else	/* !defined(SO_OOBINLINE)) */
-		    ncc = read(net, netibuf, sizeof (netibuf));
-#endif	/* !defined(SO_OOBINLINE)) */
-		    if (ncc < 0 && errno == EWOULDBLOCK)
-			ncc = 0;
-		    else {
-			if (ncc <= 0) {
-			    break;
-			}
-			netip = netibuf;
-		    }
-		    DIAG((TD_REPORT | TD_NETDATA),
-			output_data("td: netread %d chars\r\n", ncc));
-		    DIAG(TD_NETDATA, printdata("nd", netip, ncc));
-		}
-
-		/*
-		 * Something to read from the pty...
-		 */
-		if (FD_ISSET(p, &ibits)) {
-			pcc = read(p, ptyibuf, BUFSIZ);
-			/*
-			 * On some systems, if we try to read something
-			 * off the master side before the slave side is
-			 * opened, we get EIO.
-			 */
-			if (pcc < 0 && (errno == EWOULDBLOCK ||
-#ifdef	EAGAIN
-					errno == EAGAIN ||
-#endif
-					errno == EIO)) {
-				pcc = 0;
-			} else {
-				if (pcc <= 0)
-					break;
-#ifdef	LINEMODE
-				/*
-				 * If ioctl from pty, pass it through net
-				 */
-				if (ptyibuf[0] & TIOCPKT_IOCTL) {
-					copy_termbuf(ptyibuf+1, pcc-1);
-					localstat();
-					pcc = 1;
-				}
-#endif	/* LINEMODE */
-				if (ptyibuf[0] & TIOCPKT_FLUSHWRITE) {
-					netclear();	/* clear buffer back */
-#ifndef	NO_URGENT
-					/*
-					 * There are client telnets on some
-					 * operating systems get screwed up
-					 * royally if we send them urgent
-					 * mode data.
-					 */
-					output_data("%c%c", IAC, DM);
-					neturg = nfrontp-1; /* off by one XXX */
-					DIAG(TD_OPTIONS,
-					    printoption("td: send IAC", DM));
-
-#endif
-				}
-				if (his_state_is_will(TELOPT_LFLOW) &&
-				    (ptyibuf[0] &
-				     (TIOCPKT_NOSTOP|TIOCPKT_DOSTOP))) {
-					int newflow =
-					    ptyibuf[0] & TIOCPKT_DOSTOP ? 1 : 0;
-					if (newflow != flowmode) {
-						flowmode = newflow;
-						output_data("%c%c%c%c%c%c",
-							IAC, SB, TELOPT_LFLOW,
-							flowmode ? LFLOW_ON
-								 : LFLOW_OFF,
-							IAC, SE);
-						DIAG(TD_OPTIONS, printsub('>',
-						    (unsigned char *)nfrontp-4,
-						    4););
-					}
-				}
-				pcc--;
-				ptyip = ptyibuf+1;
-			}
-		}
-
-		while (pcc > 0) {
-			if ((&netobuf[BUFSIZ] - nfrontp) < 2)
-				break;
-			c = *ptyip++ & 0377, pcc--;
-			if (c == IAC)
-				output_data("%c", c);
-			output_data("%c", c);
-			if ((c == '\r') && (my_state_is_wont(TELOPT_BINARY))) {
-				if (pcc > 0 && ((*ptyip & 0377) == '\n')) {
-					output_data("%c", *ptyip++ & 0377);
-					pcc--;
-				} else
-					output_data("%c", '\0');
-			}
-		}
-
-		if (FD_ISSET(f, &obits) && (nfrontp - nbackp) > 0)
-			netflush();
-		if (ncc > 0)
-			telrcv();
-		if (FD_ISSET(p, &obits) && (pfrontp - pbackp) > 0)
-			ptyflush();
-	}
-	cleanup(0);
-}  /* end of telnet */
-
-#ifndef	TCSIG
-# ifdef	TIOCSIG
-#  define TCSIG TIOCSIG
-# endif
-#endif
-
-/*
- * Send interrupt to process on other side of pty.
- * If it is in raw mode, just write NULL;
- * otherwise, write intr char.
- */
-void
-interrupt(void)
-{
-	ptyflush();	/* half-hearted */
-
-#ifdef	TCSIG
-	(void) ioctl(pty, TCSIG, (char *)SIGINT);
-#else	/* TCSIG */
-	init_termbuf();
-	*pfrontp++ = slctab[SLC_IP].sptr ?
-			(unsigned char)*slctab[SLC_IP].sptr : '\177';
-#endif	/* TCSIG */
-}
-
-/*
- * Send quit to process on other side of pty.
- * If it is in raw mode, just write NULL;
- * otherwise, write quit char.
- */
-void
-sendbrk(void)
-{
-	ptyflush();	/* half-hearted */
-#ifdef	TCSIG
-	(void) ioctl(pty, TCSIG, (char *)SIGQUIT);
-#else	/* TCSIG */
-	init_termbuf();
-	*pfrontp++ = slctab[SLC_ABORT].sptr ?
-			(unsigned char)*slctab[SLC_ABORT].sptr : '\034';
-#endif	/* TCSIG */
-}
-
-void
-sendsusp(void)
-{
-#ifdef	SIGTSTP
-	ptyflush();	/* half-hearted */
-# ifdef	TCSIG
-	(void) ioctl(pty, TCSIG, (char *)SIGTSTP);
-# else	/* TCSIG */
-	*pfrontp++ = slctab[SLC_SUSP].sptr ?
-			(unsigned char)*slctab[SLC_SUSP].sptr : '\032';
-# endif	/* TCSIG */
-#endif	/* SIGTSTP */
-}
-
-/*
- * When we get an AYT, if ^T is enabled, use that.  Otherwise,
- * just send back "[Yes]".
- */
-void
-recv_ayt(void)
-{
-#if	defined(SIGINFO) && defined(TCSIG)
-	if (slctab[SLC_AYT].sptr && *slctab[SLC_AYT].sptr != _POSIX_VDISABLE) {
-		(void) ioctl(pty, TCSIG, (char *)SIGINFO);
-		return;
-	}
-#endif
-	output_data("\r\n[Yes]\r\n");
-}
-
-void
-doeof(void)
-{
-	init_termbuf();
-
-#if	defined(LINEMODE) && defined(USE_TERMIO) && (VEOF == VMIN)
-	if (!tty_isediting()) {
-		extern char oldeofc;
-		*pfrontp++ = oldeofc;
-		return;
-	}
-#endif
-	*pfrontp++ = slctab[SLC_EOF].sptr ?
-			(unsigned char)*slctab[SLC_EOF].sptr : '\004';
-}
diff --git a/crypto/telnet/telnetd/telnetd.h b/crypto/telnet/telnetd/telnetd.h
deleted file mode 100644
index 5bfc572f518d..000000000000
--- a/crypto/telnet/telnetd/telnetd.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)telnetd.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-
-#include "defs.h"
-#include "ext.h"
-
-#ifdef	DIAGNOSTICS
-#define	DIAG(a,b)	if (diagnostic & (a)) b
-#else
-#define	DIAG(a,b)
-#endif
-
-/* other external variables */
-extern	char **environ;
-extern	const char *altlogin;
diff --git a/crypto/telnet/telnetd/termstat.c b/crypto/telnet/telnetd/termstat.c
deleted file mode 100644
index 36f599722308..000000000000
--- a/crypto/telnet/telnetd/termstat.c
+++ /dev/null
@@ -1,632 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)termstat.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "telnetd.h"
-
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-/*
- * local variables
- */
-int def_tspeed = -1, def_rspeed = -1;
-#ifdef	TIOCSWINSZ
-int def_row = 0, def_col = 0;
-#endif
-#ifdef	LINEMODE
-static int _terminit = 0;
-#endif	/* LINEMODE */
-
-#ifdef	LINEMODE
-/*
- * localstat
- *
- * This function handles all management of linemode.
- *
- * Linemode allows the client to do the local editing of data
- * and send only complete lines to the server.  Linemode state is
- * based on the state of the pty driver.  If the pty is set for
- * external processing, then we can use linemode.  Further, if we
- * can use real linemode, then we can look at the edit control bits
- * in the pty to determine what editing the client should do.
- *
- * Linemode support uses the following state flags to keep track of
- * current and desired linemode state.
- *	alwayslinemode : true if -l was specified on the telnetd
- * 	command line.  It means to have linemode on as much as
- *	possible.
- *
- * 	lmodetype: signifies whether the client can
- *	handle real linemode, or if use of kludgeomatic linemode
- *	is preferred.  It will be set to one of the following:
- *		REAL_LINEMODE : use linemode option
- *		NO_KLUDGE : don't initiate kludge linemode.
- *		KLUDGE_LINEMODE : use kludge linemode
- *		NO_LINEMODE : client is ignorant of linemode
- *
- *	linemode, uselinemode : linemode is true if linemode
- *	is currently on, uselinemode is the state that we wish
- *	to be in.  If another function wishes to turn linemode
- *	on or off, it sets or clears uselinemode.
- *
- *	editmode, useeditmode : like linemode/uselinemode, but
- *	these contain the edit mode states (edit and trapsig).
- *
- * The state variables correspond to some of the state information
- * in the pty.
- *	linemode:
- *		In real linemode, this corresponds to whether the pty
- *		expects external processing of incoming data.
- *		In kludge linemode, this more closely corresponds to the
- *		whether normal processing is on or not.  (ICANON in
- *		system V, or COOKED mode in BSD.)
- *		If the -l option was specified (alwayslinemode), then
- *		an attempt is made to force external processing on at
- *		all times.
- *
- * The following heuristics are applied to determine linemode
- * handling within the server.
- *	1) Early on in starting up the server, an attempt is made
- *	   to negotiate the linemode option.  If this succeeds
- *	   then lmodetype is set to REAL_LINEMODE and all linemode
- *	   processing occurs in the context of the linemode option.
- *	2) If the attempt to negotiate the linemode option failed,
- *	   and the "-k" (don't initiate kludge linemode) isn't set,
- *	   then we try to use kludge linemode.  We test for this
- *	   capability by sending "do Timing Mark".  If a positive
- *	   response comes back, then we assume that the client
- *	   understands kludge linemode (ech!) and the
- *	   lmodetype flag is set to KLUDGE_LINEMODE.
- *	3) Otherwise, linemode is not supported at all and
- *	   lmodetype remains set to NO_LINEMODE (which happens
- *	   to be 0 for convenience).
- *	4) At any time a command arrives that implies a higher
- *	   state of linemode support in the client, we move to that
- *	   linemode support.
- *
- * A short explanation of kludge linemode is in order here.
- *	1) The heuristic to determine support for kludge linemode
- *	   is to send a do timing mark.  We assume that a client
- *	   that supports timing marks also supports kludge linemode.
- *	   A risky proposition at best.
- *	2) Further negotiation of linemode is done by changing the
- *	   the server's state regarding SGA.  If server will SGA,
- *	   then linemode is off, if server won't SGA, then linemode
- *	   is on.
- */
-void
-localstat(void)
-{
-	int need_will_echo = 0;
-
-	/*
-	 * Check for changes to flow control if client supports it.
-	 */
-	flowstat();
-
-	/*
-	 * Check linemode on/off state
-	 */
-	uselinemode = tty_linemode();
-
-	/*
-	 * If alwayslinemode is on, and pty is changing to turn it off, then
-	 * force linemode back on.
-	 */
-	if (alwayslinemode && linemode && !uselinemode) {
-		uselinemode = 1;
-		tty_setlinemode(uselinemode);
-	}
-
-	if (uselinemode) {
-		/*
-		 * Check for state of BINARY options.
-		 *
-		 * We only need to do the binary dance if we are actually going
-		 * to use linemode.  As this confuses some telnet clients
-		 * that don't support linemode, and doesn't gain us
-		 * anything, we don't do it unless we're doing linemode.
-		 * -Crh (henrich@msu.edu)
-		 */
-
-		if (tty_isbinaryin()) {
-			if (his_want_state_is_wont(TELOPT_BINARY))
-				send_do(TELOPT_BINARY, 1);
-		} else {
-			if (his_want_state_is_will(TELOPT_BINARY))
-				send_dont(TELOPT_BINARY, 1);
-		}
-
-		if (tty_isbinaryout()) {
-			if (my_want_state_is_wont(TELOPT_BINARY))
-				send_will(TELOPT_BINARY, 1);
-		} else {
-			if (my_want_state_is_will(TELOPT_BINARY))
-				send_wont(TELOPT_BINARY, 1);
-		}
-	}
-
-#ifdef	ENCRYPTION
-	/*
-	 * If the terminal is not echoing, but editing is enabled,
-	 * something like password input is going to happen, so
-	 * if we the other side is not currently sending encrypted
-	 * data, ask the other side to start encrypting.
-	 */
-	if (his_state_is_will(TELOPT_ENCRYPT)) {
-		static int enc_passwd = 0;
-		if (uselinemode && !tty_isecho() && tty_isediting()
-		    && (enc_passwd == 0) && !decrypt_input) {
-			encrypt_send_request_start();
-			enc_passwd = 1;
-		} else if (enc_passwd) {
-			encrypt_send_request_end();
-			enc_passwd = 0;
-		}
-	}
-#endif	/* ENCRYPTION */
-
-	/*
-	 * Do echo mode handling as soon as we know what the
-	 * linemode is going to be.
-	 * If the pty has echo turned off, then tell the client that
-	 * the server will echo.  If echo is on, then the server
-	 * will echo if in character mode, but in linemode the
-	 * client should do local echoing.  The state machine will
-	 * not send anything if it is unnecessary, so don't worry
-	 * about that here.
-	 *
-	 * If we need to send the WILL ECHO (because echo is off),
-	 * then delay that until after we have changed the MODE.
-	 * This way, when the user is turning off both editing
-	 * and echo, the client will get editing turned off first.
-	 * This keeps the client from going into encryption mode
-	 * and then right back out if it is doing auto-encryption
-	 * when passwords are being typed.
-	 */
-	if (uselinemode) {
-		if (tty_isecho())
-			send_wont(TELOPT_ECHO, 1);
-		else
-			need_will_echo = 1;
-#ifdef	KLUDGELINEMODE
-		if (lmodetype == KLUDGE_OK)
-			lmodetype = KLUDGE_LINEMODE;
-#endif
-	}
-
-	/*
-	 * If linemode is being turned off, send appropriate
-	 * command and then we're all done.
-	 */
-	 if (!uselinemode && linemode) {
-# ifdef	KLUDGELINEMODE
-		if (lmodetype == REAL_LINEMODE) {
-# endif	/* KLUDGELINEMODE */
-			send_dont(TELOPT_LINEMODE, 1);
-# ifdef	KLUDGELINEMODE
-		} else if (lmodetype == KLUDGE_LINEMODE)
-			send_will(TELOPT_SGA, 1);
-# endif	/* KLUDGELINEMODE */
-		send_will(TELOPT_ECHO, 1);
-		linemode = uselinemode;
-		goto done;
-	}
-
-# ifdef	KLUDGELINEMODE
-	/*
-	 * If using real linemode check edit modes for possible later use.
-	 * If we are in kludge linemode, do the SGA negotiation.
-	 */
-	if (lmodetype == REAL_LINEMODE) {
-# endif	/* KLUDGELINEMODE */
-		useeditmode = 0;
-		if (tty_isediting())
-			useeditmode |= MODE_EDIT;
-		if (tty_istrapsig())
-			useeditmode |= MODE_TRAPSIG;
-		if (tty_issofttab())
-			useeditmode |= MODE_SOFT_TAB;
-		if (tty_islitecho())
-			useeditmode |= MODE_LIT_ECHO;
-# ifdef	KLUDGELINEMODE
-	} else if (lmodetype == KLUDGE_LINEMODE) {
-		if (tty_isediting() && uselinemode)
-			send_wont(TELOPT_SGA, 1);
-		else
-			send_will(TELOPT_SGA, 1);
-	}
-# endif	/* KLUDGELINEMODE */
-
-	/*
-	 * Negotiate linemode on if pty state has changed to turn it on.
-	 * Send appropriate command and send along edit mode, then all done.
-	 */
-	if (uselinemode && !linemode) {
-# ifdef	KLUDGELINEMODE
-		if (lmodetype == KLUDGE_LINEMODE) {
-			send_wont(TELOPT_SGA, 1);
-		} else if (lmodetype == REAL_LINEMODE) {
-# endif	/* KLUDGELINEMODE */
-			send_do(TELOPT_LINEMODE, 1);
-			/* send along edit modes */
-			output_data("%c%c%c%c%c%c%c", IAC, SB,
-				TELOPT_LINEMODE, LM_MODE, useeditmode,
-				IAC, SE);
-			editmode = useeditmode;
-# ifdef	KLUDGELINEMODE
-		}
-# endif	/* KLUDGELINEMODE */
-		linemode = uselinemode;
-		goto done;
-	}
-
-# ifdef	KLUDGELINEMODE
-	/*
-	 * None of what follows is of any value if not using
-	 * real linemode.
-	 */
-	if (lmodetype < REAL_LINEMODE)
-		goto done;
-# endif	/* KLUDGELINEMODE */
-
-	if (linemode && his_state_is_will(TELOPT_LINEMODE)) {
-		/*
-		 * If edit mode changed, send edit mode.
-		 */
-		 if (useeditmode != editmode) {
-			/*
-			 * Send along appropriate edit mode mask.
-			 */
-			output_data("%c%c%c%c%c%c%c", IAC, SB,
-				TELOPT_LINEMODE, LM_MODE, useeditmode,
-				IAC, SE);
-			editmode = useeditmode;
-		}
-
-
-		/*
-		 * Check for changes to special characters in use.
-		 */
-		start_slc(0);
-		check_slc();
-		(void) end_slc(0);
-	}
-
-done:
-	if (need_will_echo)
-		send_will(TELOPT_ECHO, 1);
-	/*
-	 * Some things should be deferred until after the pty state has
-	 * been set by the local process.  Do those things that have been
-	 * deferred now.  This only happens once.
-	 */
-	if (_terminit == 0) {
-		_terminit = 1;
-		defer_terminit();
-	}
-
-	netflush();
-	set_termbuf();
-	return;
-
-}  /* end of localstat */
-#endif	/* LINEMODE */
-
-/*
- * flowstat
- *
- * Check for changes to flow control
- */
-void
-flowstat(void)
-{
-	if (his_state_is_will(TELOPT_LFLOW)) {
-		if (tty_flowmode() != flowmode) {
-			flowmode = tty_flowmode();
-			output_data("%c%c%c%c%c%c",
-					IAC, SB, TELOPT_LFLOW,
-					flowmode ? LFLOW_ON : LFLOW_OFF,
-					IAC, SE);
-		}
-		if (tty_restartany() != restartany) {
-			restartany = tty_restartany();
-			output_data("%c%c%c%c%c%c",
-					IAC, SB, TELOPT_LFLOW,
-					restartany ? LFLOW_RESTART_ANY
-						   : LFLOW_RESTART_XON,
-					IAC, SE);
-		}
-	}
-}
-
-/*
- * clientstat
- *
- * Process linemode related requests from the client.
- * Client can request a change to only one of linemode, editmode or slc's
- * at a time, and if using kludge linemode, then only linemode may be
- * affected.
- */
-void
-clientstat(int code, int parm1, int parm2)
-{
-
-	/*
-	 * Get a copy of terminal characteristics.
-	 */
-	init_termbuf();
-
-	/*
-	 * Process request from client. code tells what it is.
-	 */
-	switch (code) {
-#ifdef	LINEMODE
-	case TELOPT_LINEMODE:
-		/*
-		 * Don't do anything unless client is asking us to change
-		 * modes.
-		 */
-		uselinemode = (parm1 == WILL);
-		if (uselinemode != linemode) {
-# ifdef	KLUDGELINEMODE
-			/*
-			 * If using kludge linemode, make sure that
-			 * we can do what the client asks.
-			 * We can not turn off linemode if alwayslinemode
-			 * and the ICANON bit is set.
-			 */
-			if (lmodetype == KLUDGE_LINEMODE) {
-				if (alwayslinemode && tty_isediting()) {
-					uselinemode = 1;
-				}
-			}
-
-			/*
-			 * Quit now if we can't do it.
-			 */
-			if (uselinemode == linemode)
-				return;
-
-			/*
-			 * If using real linemode and linemode is being
-			 * turned on, send along the edit mode mask.
-			 */
-			if (lmodetype == REAL_LINEMODE && uselinemode)
-# else	/* KLUDGELINEMODE */
-			if (uselinemode)
-# endif	/* KLUDGELINEMODE */
-			{
-				useeditmode = 0;
-				if (tty_isediting())
-					useeditmode |= MODE_EDIT;
-				if (tty_istrapsig)
-					useeditmode |= MODE_TRAPSIG;
-				if (tty_issofttab())
-					useeditmode |= MODE_SOFT_TAB;
-				if (tty_islitecho())
-					useeditmode |= MODE_LIT_ECHO;
-				output_data("%c%c%c%c%c%c%c", IAC,
-					SB, TELOPT_LINEMODE, LM_MODE,
-							useeditmode, IAC, SE);
-				editmode = useeditmode;
-			}
-
-
-			tty_setlinemode(uselinemode);
-
-			linemode = uselinemode;
-
-			if (!linemode)
-				send_will(TELOPT_ECHO, 1);
-		}
-		break;
-
-	case LM_MODE:
-	    {
-		int ack, changed;
-
-		/*
-		 * Client has sent along a mode mask.  If it agrees with
-		 * what we are currently doing, ignore it; if not, it could
-		 * be viewed as a request to change.  Note that the server
-		 * will change to the modes in an ack if it is different from
-		 * what we currently have, but we will not ack the ack.
-		 */
-		 useeditmode &= MODE_MASK;
-		 ack = (useeditmode & MODE_ACK);
-		 useeditmode &= ~MODE_ACK;
-
-		 if ((changed = (useeditmode ^ editmode))) {
-			/*
-			 * This check is for a timing problem.  If the
-			 * state of the tty has changed (due to the user
-			 * application) we need to process that info
-			 * before we write in the state contained in the
-			 * ack!!!  This gets out the new MODE request,
-			 * and when the ack to that command comes back
-			 * we'll set it and be in the right mode.
-			 */
-			if (ack)
-				localstat();
-			if (changed & MODE_EDIT)
-				tty_setedit(useeditmode & MODE_EDIT);
-
-			if (changed & MODE_TRAPSIG)
-				tty_setsig(useeditmode & MODE_TRAPSIG);
-
-			if (changed & MODE_SOFT_TAB)
-				tty_setsofttab(useeditmode & MODE_SOFT_TAB);
-
-			if (changed & MODE_LIT_ECHO)
-				tty_setlitecho(useeditmode & MODE_LIT_ECHO);
-
-			set_termbuf();
-
- 			if (!ack) {
-				output_data("%c%c%c%c%c%c%c", IAC,
-					SB, TELOPT_LINEMODE, LM_MODE,
- 					useeditmode|MODE_ACK,
- 					IAC, SE);
- 			}
-
-			editmode = useeditmode;
-		}
-
-		break;
-
-	    }  /* end of case LM_MODE */
-#endif	/* LINEMODE */
-
-	case TELOPT_NAWS:
-#ifdef	TIOCSWINSZ
-	    {
-		struct winsize ws;
-
-		def_col = parm1;
-		def_row = parm2;
-#ifdef	LINEMODE
-		/*
-		 * Defer changing window size until after terminal is
-		 * initialized.
-		 */
-		if (terminit() == 0)
-			return;
-#endif	/* LINEMODE */
-
-		/*
-		 * Change window size as requested by client.
-		 */
-
-		ws.ws_col = parm1;
-		ws.ws_row = parm2;
-		(void) ioctl(pty, TIOCSWINSZ, (char *)&ws);
-	    }
-#endif	/* TIOCSWINSZ */
-
-		break;
-
-	case TELOPT_TSPEED:
-	    {
-		def_tspeed = parm1;
-		def_rspeed = parm2;
-#ifdef	LINEMODE
-		/*
-		 * Defer changing the terminal speed.
-		 */
-		if (terminit() == 0)
-			return;
-#endif	/* LINEMODE */
-		/*
-		 * Change terminal speed as requested by client.
-		 * We set the receive speed first, so that if we can't
-		 * store separate receive and transmit speeds, the transmit
-		 * speed will take precedence.
-		 */
-		tty_rspeed(parm2);
-		tty_tspeed(parm1);
-		set_termbuf();
-
-		break;
-
-	    }  /* end of case TELOPT_TSPEED */
-
-	default:
-		/* What? */
-		break;
-	}  /* end of switch */
-
-	netflush();
-
-}  /* end of clientstat */
-
-#ifdef	LINEMODE
-/*
- * defer_terminit
- *
- * Some things should not be done until after the login process has started
- * and all the pty modes are set to what they are supposed to be.  This
- * function is called when the pty state has been processed for the first time.
- * It calls other functions that do things that were deferred in each module.
- */
-void
-defer_terminit(void)
-{
-
-	/*
-	 * local stuff that got deferred.
-	 */
-	if (def_tspeed != -1) {
-		clientstat(TELOPT_TSPEED, def_tspeed, def_rspeed);
-		def_tspeed = def_rspeed = 0;
-	}
-
-#ifdef	TIOCSWINSZ
-	if (def_col || def_row) {
-		struct winsize ws;
-
-		memset((char *)&ws, 0, sizeof(ws));
-		ws.ws_col = def_col;
-		ws.ws_row = def_row;
-		(void) ioctl(pty, TIOCSWINSZ, (char *)&ws);
-	}
-#endif
-
-	/*
-	 * The only other module that currently defers anything.
-	 */
-	deferslc();
-
-}  /* end of defer_terminit */
-
-/*
- * terminit
- *
- * Returns true if the pty state has been processed yet.
- */
-int
-terminit(void)
-{
-	return(_terminit);
-
-}  /* end of terminit */
-#endif	/* LINEMODE */
diff --git a/crypto/telnet/telnetd/utility.c b/crypto/telnet/telnetd/utility.c
deleted file mode 100644
index 54e23270be18..000000000000
--- a/crypto/telnet/telnetd/utility.c
+++ /dev/null
@@ -1,1081 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)utility.c	8.4 (Berkeley) 5/30/95";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifdef __FreeBSD__
-#include <locale.h>
-#include <sys/utsname.h>
-#endif
-#include <string.h>
-#define PRINTOPTIONS
-#include "telnetd.h"
-
-#ifdef	AUTHENTICATION
-#include <libtelnet/auth.h>
-#endif
-#ifdef	ENCRYPTION
-#include <libtelnet/encrypt.h>
-#endif
-
-/*
- * utility functions performing io related tasks
- */
-
-/*
- * ttloop
- *
- *	A small subroutine to flush the network output buffer, get some data
- * from the network, and pass it through the telnet state machine.  We
- * also flush the pty input buffer (by dropping its data) if it becomes
- * too full.
- */
-
-    void
-ttloop()
-{
-
-    DIAG(TD_REPORT, output_data("td: ttloop\r\n"));
-    if (nfrontp - nbackp > 0) {
-	netflush();
-    }
-    ncc = read(net, netibuf, sizeof netibuf);
-    if (ncc < 0) {
-	syslog(LOG_INFO, "ttloop:  read: %m");
-	exit(1);
-    } else if (ncc == 0) {
-	syslog(LOG_INFO, "ttloop:  peer died: %m");
-	exit(1);
-    }
-    DIAG(TD_REPORT, output_data("td: ttloop read %d chars\r\n", ncc));
-    netip = netibuf;
-    telrcv();			/* state machine */
-    if (ncc > 0) {
-	pfrontp = pbackp = ptyobuf;
-	telrcv();
-    }
-}  /* end of ttloop */
-
-/*
- * Check a descriptor to see if out of band data exists on it.
- */
-int
-stilloob(int s)
-{
-    static struct timeval timeout = { 0, 0 };
-    fd_set	excepts;
-    int value;
-
-    do {
-	FD_ZERO(&excepts);
-	FD_SET(s, &excepts);
-	memset((char *)&timeout, 0, sizeof timeout);
-	value = select(s+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout);
-    } while ((value == -1) && (errno == EINTR));
-
-    if (value < 0) {
-	fatalperror(pty, "select");
-    }
-    if (FD_ISSET(s, &excepts)) {
-	return 1;
-    } else {
-	return 0;
-    }
-}
-
-void
-ptyflush(void)
-{
-	int n;
-
-	if ((n = pfrontp - pbackp) > 0) {
-		DIAG(TD_REPORT | TD_PTYDATA,
-		    output_data("td: ptyflush %d chars\r\n", n));
-		DIAG(TD_PTYDATA, printdata("pd", pbackp, n));
-		n = write(pty, pbackp, n);
-	}
-	if (n < 0) {
-		if (errno == EWOULDBLOCK || errno == EINTR)
-			return;
-		cleanup(0);
-	}
-	pbackp += n;
-	if (pbackp == pfrontp)
-		pbackp = pfrontp = ptyobuf;
-}
-
-/*
- * nextitem()
- *
- *	Return the address of the next "item" in the TELNET data
- * stream.  This will be the address of the next character if
- * the current address is a user data character, or it will
- * be the address of the character following the TELNET command
- * if the current address is a TELNET IAC ("I Am a Command")
- * character.
- */
-static char *
-nextitem(char *current)
-{
-    if ((*current&0xff) != IAC) {
-	return current+1;
-    }
-    switch (*(current+1)&0xff) {
-    case DO:
-    case DONT:
-    case WILL:
-    case WONT:
-	return current+3;
-    case SB:		/* loop forever looking for the SE */
-	{
-	    char *look = current+2;
-
-	    for (;;) {
-		if ((*look++&0xff) == IAC) {
-		    if ((*look++&0xff) == SE) {
-			return look;
-		    }
-		}
-	    }
-	}
-    default:
-	return current+2;
-    }
-}  /* end of nextitem */
-
-/*
- * netclear()
- *
- *	We are about to do a TELNET SYNCH operation.  Clear
- * the path to the network.
- *
- *	Things are a bit tricky since we may have sent the first
- * byte or so of a previous TELNET command into the network.
- * So, we have to scan the network buffer from the beginning
- * until we are up to where we want to be.
- *
- *	A side effect of what we do, just to keep things
- * simple, is to clear the urgent data pointer.  The principal
- * caller should be setting the urgent data pointer AFTER calling
- * us in any case.
- */
-void
-netclear(void)
-{
-    char *thisitem, *next;
-    char *good;
-#define	wewant(p)	((nfrontp > p) && ((*p&0xff) == IAC) && \
-				((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL))
-
-#ifdef	ENCRYPTION
-    thisitem = nclearto > netobuf ? nclearto : netobuf;
-#else	/* ENCRYPTION */
-    thisitem = netobuf;
-#endif	/* ENCRYPTION */
-
-    while ((next = nextitem(thisitem)) <= nbackp) {
-	thisitem = next;
-    }
-
-    /* Now, thisitem is first before/at boundary. */
-
-#ifdef	ENCRYPTION
-    good = nclearto > netobuf ? nclearto : netobuf;
-#else	/* ENCRYPTION */
-    good = netobuf;	/* where the good bytes go */
-#endif	/* ENCRYPTION */
-
-    while (nfrontp > thisitem) {
-	if (wewant(thisitem)) {
-	    int length;
-
-	    next = thisitem;
-	    do {
-		next = nextitem(next);
-	    } while (wewant(next) && (nfrontp > next));
-	    length = next-thisitem;
-	    memmove(good, thisitem, length);
-	    good += length;
-	    thisitem = next;
-	} else {
-	    thisitem = nextitem(thisitem);
-	}
-    }
-
-    nbackp = netobuf;
-    nfrontp = good;		/* next byte to be sent */
-    neturg = 0;
-}  /* end of netclear */
-
-/*
- *  netflush
- *		Send as much data as possible to the network,
- *	handling requests for urgent data.
- */
-void
-netflush(void)
-{
-    int n;
-    extern int not42;
-
-    while ((n = nfrontp - nbackp) > 0) {
-#if 0
-	/* XXX This causes output_data() to recurse and die */
-	DIAG(TD_REPORT, {
-	    n += output_data("td: netflush %d chars\r\n", n);
-	});
-#endif
-#ifdef	ENCRYPTION
-	if (encrypt_output) {
-		char *s = nclearto ? nclearto : nbackp;
-		if (nfrontp - s > 0) {
-			(*encrypt_output)((unsigned char *)s, nfrontp-s);
-			nclearto = nfrontp;
-		}
-	}
-#endif	/* ENCRYPTION */
-	/*
-	 * if no urgent data, or if the other side appears to be an
-	 * old 4.2 client (and thus unable to survive TCP urgent data),
-	 * write the entire buffer in non-OOB mode.
-	 */
-	if ((neturg == 0) || (not42 == 0)) {
-	    n = write(net, nbackp, n);	/* normal write */
-	} else {
-	    n = neturg - nbackp;
-	    /*
-	     * In 4.2 (and 4.3) systems, there is some question about
-	     * what byte in a sendOOB operation is the "OOB" data.
-	     * To make ourselves compatible, we only send ONE byte
-	     * out of band, the one WE THINK should be OOB (though
-	     * we really have more the TCP philosophy of urgent data
-	     * rather than the Unix philosophy of OOB data).
-	     */
-	    if (n > 1) {
-		n = send(net, nbackp, n-1, 0);	/* send URGENT all by itself */
-	    } else {
-		n = send(net, nbackp, n, MSG_OOB);	/* URGENT data */
-	    }
-	}
-	if (n == -1) {
-	    if (errno == EWOULDBLOCK || errno == EINTR)
-		continue;
-	    cleanup(0);
-	    /* NOTREACHED */
-	}
-	nbackp += n;
-#ifdef	ENCRYPTION
-	if (nbackp > nclearto)
-	    nclearto = 0;
-#endif	/* ENCRYPTION */
-	if (nbackp >= neturg) {
-	    neturg = 0;
-	}
-	if (nbackp == nfrontp) {
-	    nbackp = nfrontp = netobuf;
-#ifdef	ENCRYPTION
-	    nclearto = 0;
-#endif	/* ENCRYPTION */
-	}
-    }
-    return;
-}  /* end of netflush */
-
-
-/*
- * miscellaneous functions doing a variety of little jobs follow ...
- */
-
-
-void
-fatal(int f, const char *msg)
-{
-	char buf[BUFSIZ];
-
-	(void) snprintf(buf, sizeof(buf), "telnetd: %s.\r\n", msg);
-#ifdef	ENCRYPTION
-	if (encrypt_output) {
-		/*
-		 * Better turn off encryption first....
-		 * Hope it flushes...
-		 */
-		encrypt_send_end();
-		netflush();
-	}
-#endif	/* ENCRYPTION */
-	(void) write(f, buf, (int)strlen(buf));
-	sleep(1);	/*XXX*/
-	exit(1);
-}
-
-void
-fatalperror(int f, const char *msg)
-{
-	char buf[BUFSIZ];
-
-	(void) snprintf(buf, sizeof(buf), "%s: %s", msg, strerror(errno));
-	fatal(f, buf);
-}
-
-char editedhost[32];
-
-void
-edithost(char *pat, char *host)
-{
-	char *res = editedhost;
-
-	if (!pat)
-		pat = strdup("");
-	while (*pat) {
-		switch (*pat) {
-
-		case '#':
-			if (*host)
-				host++;
-			break;
-
-		case '@':
-			if (*host)
-				*res++ = *host++;
-			break;
-
-		default:
-			*res++ = *pat;
-			break;
-		}
-		if (res == &editedhost[sizeof editedhost - 1]) {
-			*res = '\0';
-			return;
-		}
-		pat++;
-	}
-	if (*host)
-		(void) strncpy(res, host,
-				sizeof editedhost - (res - editedhost) -1);
-	else
-		*res = '\0';
-	editedhost[sizeof editedhost - 1] = '\0';
-}
-
-static char *putlocation;
-
-static void
-putstr(const char *s)
-{
-
-	while (*s)
-		putchr(*s++);
-}
-
-void
-putchr(int cc)
-{
-	*putlocation++ = cc;
-}
-
-#ifdef __FreeBSD__
-static char fmtstr[] = { "%+" };
-#else
-static char fmtstr[] = { "%l:%M%P on %A, %d %B %Y" };
-#endif
-
-void
-putf(char *cp, char *where)
-{
-	char *slash;
-	time_t t;
-	char db[100];
-#ifdef __FreeBSD__
-	static struct utsname kerninfo;
-
-	if (!*kerninfo.sysname)
-		uname(&kerninfo);
-#endif
-
-	putlocation = where;
-
-	while (*cp) {
-		if (*cp =='\n') {
-			putstr("\r\n");
-			cp++;
-			continue;
-		} else if (*cp != '%') {
-			putchr(*cp++);
-			continue;
-		}
-		switch (*++cp) {
-
-		case 't':
-#ifdef	STREAMSPTY
-			/* names are like /dev/pts/2 -- we want pts/2 */
-			slash = strchr(line+1, '/');
-#else
-			slash = strrchr(line, '/');
-#endif
-			if (slash == (char *) 0)
-				putstr(line);
-			else
-				putstr(&slash[1]);
-			break;
-
-		case 'h':
-			putstr(editedhost);
-			break;
-
-		case 'd':
-#ifdef __FreeBSD__
-			setlocale(LC_TIME, "");
-#endif
-			(void)time(&t);
-			(void)strftime(db, sizeof(db), fmtstr, localtime(&t));
-			putstr(db);
-			break;
-
-#ifdef __FreeBSD__
-		case 's':
-			putstr(kerninfo.sysname);
-			break;
-
-		case 'm':
-			putstr(kerninfo.machine);
-			break;
-
-		case 'r':
-			putstr(kerninfo.release);
-			break;
-
-		case 'v':
-			putstr(kerninfo.version);
-			break;
-#endif
-
-		case '%':
-			putchr('%');
-			break;
-		}
-		cp++;
-	}
-}
-
-#ifdef DIAGNOSTICS
-/*
- * Print telnet options and commands in plain text, if possible.
- */
-void
-printoption(const char *fmt, int option)
-{
-	if (TELOPT_OK(option))
-		output_data("%s %s\r\n", fmt, TELOPT(option));
-	else if (TELCMD_OK(option))
-		output_data("%s %s\r\n", fmt, TELCMD(option));
-	else
-		output_data("%s %d\r\n", fmt, option);
-	return;
-}
-
-void
-printsub(char direction, unsigned char *pointer, int length)
-{
-    int i = 0;
-
-	if (!(diagnostic & TD_OPTIONS))
-		return;
-
-	if (direction) {
-	    output_data("td: %s suboption ",
-					direction == '<' ? "recv" : "send");
-	    if (length >= 3) {
-		int j;
-
-		i = pointer[length-2];
-		j = pointer[length-1];
-
-		if (i != IAC || j != SE) {
-		    output_data("(terminated by ");
-		    if (TELOPT_OK(i))
-			output_data("%s ", TELOPT(i));
-		    else if (TELCMD_OK(i))
-			output_data("%s ", TELCMD(i));
-		    else
-			output_data("%d ", i);
-		    if (TELOPT_OK(j))
-			output_data("%s", TELOPT(j));
-		    else if (TELCMD_OK(j))
-			output_data("%s", TELCMD(j));
-		    else
-			output_data("%d", j);
-		    output_data(", not IAC SE!) ");
-		}
-	    }
-	    length -= 2;
-	}
-	if (length < 1) {
-	    output_data("(Empty suboption??\?)");
-	    return;
-	}
-	switch (pointer[0]) {
-	case TELOPT_TTYPE:
-	    output_data("TERMINAL-TYPE ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data("IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		output_data("SEND");
-		break;
-	    default:
-		output_data(
-				"- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-	case TELOPT_TSPEED:
-	    output_data("TERMINAL-SPEED");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data(" IS %.*s", length-2, (char *)pointer+2);
-		break;
-	    default:
-		if (pointer[1] == 1)
-		    output_data(" SEND");
-		else
-		    output_data(" %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++) {
-		    output_data(" ?%d?", pointer[i]);
-		}
-		break;
-	    }
-	    break;
-
-	case TELOPT_LFLOW:
-	    output_data("TOGGLE-FLOW-CONTROL");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case LFLOW_OFF:
-		output_data(" OFF"); break;
-	    case LFLOW_ON:
-		output_data(" ON"); break;
-	    case LFLOW_RESTART_ANY:
-		output_data(" RESTART-ANY"); break;
-	    case LFLOW_RESTART_XON:
-		output_data(" RESTART-XON"); break;
-	    default:
-		output_data(" %d (unknown)", pointer[1]);
-	    }
-	    for (i = 2; i < length; i++) {
-		output_data(" ?%d?", pointer[i]);
-	    }
-	    break;
-
-	case TELOPT_NAWS:
-	    output_data("NAWS");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    if (length == 2) {
-		output_data(" ?%d?", pointer[1]);
-		break;
-	    }
-	    output_data(" %d %d (%d)",
-		pointer[1], pointer[2],
-		(int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
-	    if (length == 4) {
-		output_data(" ?%d?", pointer[3]);
-		break;
-	    }
-	    output_data(" %d %d (%d)",
-		pointer[3], pointer[4],
-		(int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
-	    for (i = 5; i < length; i++) {
-		output_data(" ?%d?", pointer[i]);
-	    }
-	    break;
-
-	case TELOPT_LINEMODE:
-	    output_data("LINEMODE ");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case WILL:
-		output_data("WILL ");
-		goto common;
-	    case WONT:
-		output_data("WONT ");
-		goto common;
-	    case DO:
-		output_data("DO ");
-		goto common;
-	    case DONT:
-		output_data("DONT ");
-	    common:
-		if (length < 3) {
-		    output_data("(no option??\?)");
-		    break;
-		}
-		switch (pointer[2]) {
-		case LM_FORWARDMASK:
-		    output_data("Forward Mask");
-		    for (i = 3; i < length; i++) {
-			output_data(" %x", pointer[i]);
-		    }
-		    break;
-		default:
-		    output_data("%d (unknown)", pointer[2]);
-		    for (i = 3; i < length; i++) {
-			output_data(" %d", pointer[i]);
-		    }
-		    break;
-		}
-		break;
-
-	    case LM_SLC:
-		output_data("SLC");
-		for (i = 2; i < length - 2; i += 3) {
-		    if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
-			output_data(" %s", SLC_NAME(pointer[i+SLC_FUNC]));
-		    else
-			output_data(" %d", pointer[i+SLC_FUNC]);
-		    switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
-		    case SLC_NOSUPPORT:
-			output_data(" NOSUPPORT"); break;
-		    case SLC_CANTCHANGE:
-			output_data(" CANTCHANGE"); break;
-		    case SLC_VARIABLE:
-			output_data(" VARIABLE"); break;
-		    case SLC_DEFAULT:
-			output_data(" DEFAULT"); break;
-		    }
-		    output_data("%s%s%s",
-			pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
-		    if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
-						SLC_FLUSHOUT| SLC_LEVELBITS)) {
-			output_data("(0x%x)", pointer[i+SLC_FLAGS]);
-		    }
-		    output_data(" %d;", pointer[i+SLC_VALUE]);
-		    if ((pointer[i+SLC_VALUE] == IAC) &&
-			(pointer[i+SLC_VALUE+1] == IAC))
-				i++;
-		}
-		for (; i < length; i++) {
-		    output_data(" ?%d?", pointer[i]);
-		}
-		break;
-
-	    case LM_MODE:
-		output_data("MODE ");
-		if (length < 3) {
-		    output_data("(no mode??\?)");
-		    break;
-		}
-		{
-		    char tbuf[32];
-		    sprintf(tbuf, "%s%s%s%s%s",
-			pointer[2]&MODE_EDIT ? "|EDIT" : "",
-			pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
-			pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
-			pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
-			pointer[2]&MODE_ACK ? "|ACK" : "");
-		    output_data("%s", tbuf[1] ? &tbuf[1] : "0");
-		}
-		if (pointer[2]&~(MODE_EDIT|MODE_TRAPSIG|MODE_ACK)) {
-		    output_data(" (0x%x)", pointer[2]);
-		}
-		for (i = 3; i < length; i++) {
-		    output_data(" ?0x%x?", pointer[i]);
-		}
-		break;
-	    default:
-		output_data("%d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++) {
-		    output_data(" %d", pointer[i]);
-		}
-	    }
-	    break;
-
-	case TELOPT_STATUS: {
-	    const char *cp;
-	    int j, k;
-
-	    output_data("STATUS");
-
-	    switch (pointer[1]) {
-	    default:
-		if (pointer[1] == TELQUAL_SEND)
-		    output_data(" SEND");
-		else
-		    output_data(" %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++) {
-		    output_data(" ?%d?", pointer[i]);
-		}
-		break;
-	    case TELQUAL_IS:
-		output_data(" IS\r\n");
-
-		for (i = 2; i < length; i++) {
-		    switch(pointer[i]) {
-		    case DO:	cp = "DO"; goto common2;
-		    case DONT:	cp = "DONT"; goto common2;
-		    case WILL:	cp = "WILL"; goto common2;
-		    case WONT:	cp = "WONT"; goto common2;
-		    common2:
-			i++;
-			if (TELOPT_OK(pointer[i]))
-			    output_data(" %s %s", cp, TELOPT(pointer[i]));
-			else
-			    output_data(" %s %d", cp, pointer[i]);
-
-			output_data("\r\n");
-			break;
-
-		    case SB:
-			output_data(" SB ");
-			i++;
-			j = k = i;
-			while (j < length) {
-			    if (pointer[j] == SE) {
-				if (j+1 == length)
-				    break;
-				if (pointer[j+1] == SE)
-				    j++;
-				else
-				    break;
-			    }
-			    pointer[k++] = pointer[j++];
-			}
-			printsub(0, &pointer[i], k - i);
-			if (i < length) {
-			    output_data(" SE");
-			    i = j;
-			} else
-			    i = j - 1;
-
-			output_data("\r\n");
-
-			break;
-
-		    default:
-			output_data(" %d", pointer[i]);
-			break;
-		    }
-		}
-		break;
-	    }
-	    break;
-	  }
-
-	case TELOPT_XDISPLOC:
-	    output_data("X-DISPLAY-LOCATION ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data("IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		output_data("SEND");
-		break;
-	    default:
-		output_data("- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-
-	case TELOPT_NEW_ENVIRON:
-	    output_data("NEW-ENVIRON ");
-	    goto env_common1;
-	case TELOPT_OLD_ENVIRON:
-	    output_data("OLD-ENVIRON");
-	env_common1:
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data("IS ");
-		goto env_common;
-	    case TELQUAL_SEND:
-		output_data("SEND ");
-		goto env_common;
-	    case TELQUAL_INFO:
-		output_data("INFO ");
-	    env_common:
-		{
-		    int noquote = 2;
-		    for (i = 2; i < length; i++ ) {
-			switch (pointer[i]) {
-			case NEW_ENV_VAR:
-			    output_data("\" VAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			case NEW_ENV_VALUE:
-			    output_data("\" VALUE " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_ESC:
-			    output_data("\" ESC " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_USERVAR:
-			    output_data("\" USERVAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			default:
-			    if (isprint(pointer[i]) && pointer[i] != '"') {
-				if (noquote) {
-				    output_data("\"");
-				    noquote = 0;
-				}
-				output_data("%c", pointer[i]);
-			    } else {
-				output_data("\" %03o " + noquote,
-							pointer[i]);
-				noquote = 2;
-			    }
-			    break;
-			}
-		    }
-		    if (!noquote)
-			output_data("\"");
-		    break;
-		}
-	    }
-	    break;
-
-#ifdef	AUTHENTICATION
-	case TELOPT_AUTHENTICATION:
-	    output_data("AUTHENTICATION");
-
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case TELQUAL_REPLY:
-	    case TELQUAL_IS:
-		output_data(" %s ", (pointer[1] == TELQUAL_IS) ?
-							"IS" : "REPLY");
-		if (AUTHTYPE_NAME_OK(pointer[2]))
-		    output_data("%s ", AUTHTYPE_NAME(pointer[2]));
-		else
-		    output_data("%d ", pointer[2]);
-		if (length < 3) {
-		    output_data("(partial suboption??\?)");
-		    break;
-		}
-		output_data("%s|%s",
-			((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
-			"CLIENT" : "SERVER",
-			((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
-			"MUTUAL" : "ONE-WAY");
-
-    		{
-		    char buf[512];
-		    auth_printsub(&pointer[1], length - 1, buf, sizeof(buf));
-		    output_data("%s", buf);
-		}
-		break;
-
-	    case TELQUAL_SEND:
-		i = 2;
-		output_data(" SEND ");
-		while (i < length) {
-		    if (AUTHTYPE_NAME_OK(pointer[i]))
-			output_data("%s ", AUTHTYPE_NAME(pointer[i]));
-		    else
-			output_data("%d ", pointer[i]);
-		    if (++i >= length) {
-			output_data("(partial suboption??\?)");
-			break;
-		    }
-		    output_data("%s|%s ",
-			((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
-							"CLIENT" : "SERVER",
-			((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
-							"MUTUAL" : "ONE-WAY");
-		    ++i;
-		}
-		break;
-
-	    case TELQUAL_NAME:
-		output_data(" NAME \"%.*s\"", length - 2, pointer + 2);
-		break;
-
-	    default:
-		    for (i = 2; i < length; i++) {
-			output_data(" ?%d?", pointer[i]);
-		    }
-		    break;
-	    }
-	    break;
-#endif
-
-#ifdef	ENCRYPTION
-	case TELOPT_ENCRYPT:
-	    output_data("ENCRYPT");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case ENCRYPT_START:
-		output_data(" START");
-		break;
-
-	    case ENCRYPT_END:
-		output_data(" END");
-		break;
-
-	    case ENCRYPT_REQSTART:
-		output_data(" REQUEST-START");
-		break;
-
-	    case ENCRYPT_REQEND:
-		output_data(" REQUEST-END");
-		break;
-
-	    case ENCRYPT_IS:
-	    case ENCRYPT_REPLY:
-		output_data(" %s ", (pointer[1] == ENCRYPT_IS) ?
-							"IS" : "REPLY");
-		if (length < 3) {
-		    output_data(" (partial suboption??\?)");
-		    break;
-		}
-		if (ENCTYPE_NAME_OK(pointer[2]))
-		    output_data("%s ", ENCTYPE_NAME(pointer[2]));
-		else
-		    output_data(" %d (unknown)", pointer[2]);
-
-		{
-		    char buf[512];
-		    encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf));
-		    output_data("%s", buf);
-		}
-		break;
-
-	    case ENCRYPT_SUPPORT:
-		i = 2;
-		output_data(" SUPPORT ");
-		while (i < length) {
-		    if (ENCTYPE_NAME_OK(pointer[i]))
-			output_data("%s ", ENCTYPE_NAME(pointer[i]));
-		    else
-			output_data("%d ", pointer[i]);
-		    i++;
-		}
-		break;
-
-	    case ENCRYPT_ENC_KEYID:
-		output_data(" ENC_KEYID");
-		goto encommon;
-
-	    case ENCRYPT_DEC_KEYID:
-		output_data(" DEC_KEYID");
-		goto encommon;
-
-	    default:
-		output_data(" %d (unknown)", pointer[1]);
-	    encommon:
-		for (i = 2; i < length; i++) {
-		    output_data(" %d", pointer[i]);
-		}
-		break;
-	    }
-	    break;
-#endif	/* ENCRYPTION */
-
-	default:
-	    if (TELOPT_OK(pointer[0]))
-		output_data("%s (unknown)", TELOPT(pointer[0]));
-	    else
-		output_data("%d (unknown)", pointer[i]);
-	    for (i = 1; i < length; i++) {
-		output_data(" %d", pointer[i]);
-	    }
-	    break;
-	}
-	output_data("\r\n");
-}
-
-/*
- * Dump a data buffer in hex and ascii to the output data stream.
- */
-void
-printdata(const char *tag, char *ptr, int cnt)
-{
-	int i;
-	char xbuf[30];
-
-	while (cnt) {
-		/* flush net output buffer if no room for new data) */
-		if ((&netobuf[BUFSIZ] - nfrontp) < 80) {
-			netflush();
-		}
-
-		/* add a line of output */
-		output_data("%s: ", tag);
-		for (i = 0; i < 20 && cnt; i++) {
-			output_data("%02x", *ptr);
-			if (isprint(*ptr)) {
-				xbuf[i] = *ptr;
-			} else {
-				xbuf[i] = '.';
-			}
-			if (i % 2) {
-				output_data(" ");
-			}
-			cnt--;
-			ptr++;
-		}
-		xbuf[i] = '\0';
-		output_data(" %s\r\n", xbuf );
-	}
-}
-#endif /* DIAGNOSTICS */
diff --git a/kerberos5/Makefile b/kerberos5/Makefile
index 3681fbd8edee..2bdbd254bce7 100644
--- a/kerberos5/Makefile
+++ b/kerberos5/Makefile
@@ -3,7 +3,8 @@
 SUBDIR=	doc lib libexec usr.bin usr.sbin
 
 # These are the programs which depend on Kerberos.
-KPROGS=	lib/libpam secure/lib/libssh secure/usr.bin/ssh secure/usr.sbin/sshd
+KPROGS=	lib/libpam \
+	secure/lib/libssh secure/usr.bin/ssh secure/usr.sbin/sshd
 
 # This target is used to rebuild these programs WITH Kerberos.
 kerberize:
diff --git a/kerberos5/Makefile.inc b/kerberos5/Makefile.inc
index 111f94379ebb..d4e46cb5bdf9 100644
--- a/kerberos5/Makefile.inc
+++ b/kerberos5/Makefile.inc
@@ -7,7 +7,6 @@ NOLINT=		true
 
 KRB5DIR=	${.CURDIR}/../../../crypto/heimdal
 ROKENDIR=	${.CURDIR}/../../lib/libroken
-TELNETDIR=	${.CURDIR}/../../../crypto/telnet
 
 CFLAGS+=-I${INCLUDEOBJDIR} -DHAVE_CONFIG_H
 
@@ -62,12 +61,6 @@ LIBSL=		${.OBJDIR}/../../lib/libsl/libsl.a
 LIBSL=		${.CURDIR}/../../lib/libsl/libsl.a
 .endif
 
-.if exists(${.OBJDIR}/../../lib/libtelnet)
-LIBTELNET=	${.OBJDIR}/../../lib/libtelnet/libtelnet.a
-.else
-LIBTELNET=	${.CURDIR}/../../lib/libtelnet/libtelnet.a
-.endif
-
 COMPILE_ET=     compile_et
 
 .ORDER: asn1_err.c asn1_err.h
diff --git a/kerberos5/lib/Makefile b/kerberos5/lib/Makefile
index f94bb0a43d54..7223a5d584d1 100644
--- a/kerberos5/lib/Makefile
+++ b/kerberos5/lib/Makefile
@@ -1,5 +1,5 @@
 # $FreeBSD$
 
-SUBDIR=	libroken libvers libasn1 libhdb libkrb5 libkadm5clnt libkadm5srv libsl libgssapi libtelnet
+SUBDIR=	libroken libvers libasn1 libhdb libkrb5 libkadm5clnt libkadm5srv libsl libgssapi
 
 .include <bsd.subdir.mk>
diff --git a/kerberos5/lib/libtelnet/Makefile b/kerberos5/lib/libtelnet/Makefile
deleted file mode 100644
index 223df0372e65..000000000000
--- a/kerberos5/lib/libtelnet/Makefile
+++ /dev/null
@@ -1,34 +0,0 @@
-# $FreeBSD$
-
-LIB=		telnet
-
-INTERNALLIB=	yes
-
-SRCS=		genget.c getent.c misc.c encrypt.c auth.c \
-		enc_des.c sra.c pk.c
-SRCS+=		kerberos5.c
-
-#WARNS?=		2
-
-CFLAGS+=	-DENCRYPTION -DAUTHENTICATION -DSRA -I${TELNETDIR}
-CFLAGS+=	-DKRB5 -I${KRB5DIR}/lib/krb5 -I${KRB5OBJDIR} -I${ASN1OBJDIR}
-CFLAGS+=	-DFORWARD -Dnet_write=telnet_net_write
-
-INCS=		${TELNETDIR}/arpa/telnet.h
-INCSDIR=	${INCLUDEDIR}/arpa
-
-.include <bsd.lib.mk>
-
-.PATH:	${TELNETDIR}/libtelnet
-
-#
-# Remove obsolete shared libraries, if any.  We don't bother moving them
-# to /usr/lib/compat, since they were only used by telnet, telnetd and
-# tn3270.
-#
-beforeinstall: __remove-stale-libs
-__remove-stale-libs: .PHONY
-.if exists(${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0)
-	-chflags noschg ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0
-	rm -f ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0
-.endif
diff --git a/kerberos5/libexec/Makefile b/kerberos5/libexec/Makefile
index b81f7690ca47..adaa8cdbcbb7 100644
--- a/kerberos5/libexec/Makefile
+++ b/kerberos5/libexec/Makefile
@@ -1,5 +1,5 @@
 # $FreeBSD$
 
-SUBDIR=	ipropd-master ipropd-slave hpropd kadmind kdc kpasswdd telnetd
+SUBDIR=	ipropd-master ipropd-slave hpropd kadmind kdc kpasswdd
 
 .include <bsd.subdir.mk>
diff --git a/kerberos5/libexec/telnetd/Makefile b/kerberos5/libexec/telnetd/Makefile
deleted file mode 100644
index 9bf03566c848..000000000000
--- a/kerberos5/libexec/telnetd/Makefile
+++ /dev/null
@@ -1,28 +0,0 @@
-# $FreeBSD$
-
-# Do not define -DKLUDGELINEMODE, as it does not interact well with many
-# telnet implementations.
-
-PROG=		telnetd
-MAN=		telnetd.8
-
-SRCS=		global.c slc.c state.c sys_term.c telnetd.c \
-		termstat.c utility.c authenc.c
-
-CFLAGS+=	-DLINEMODE -DUSE_TERMIO -DDIAGNOSTICS -DOLD_ENVIRON \
-		-DENV_HACK -DAUTHENTICATION -DENCRYPTION \
-		-I${TELNETDIR} -DINET6
-CFLAGS+=	-DKRB5 -DFORWARD -Dnet_write=telnet_net_write
-
-WARNS?=		2
-
-DPADD=		${LIBUTIL} ${LIBTERMCAP} ${LIBTELNET} ${LIBMP} ${LIBCRYPTO} \
-		${LIBKRB5} ${LIBASN1} ${LIBROKEN} ${LIBCOM_ERR} \
-		${LIBCRYPT} ${LIBPAM}
-LDADD=		-lutil -ltermcap ${LIBTELNET} -lmp -lcrypto \
-		-lkrb5 -lasn1 -lroken -lcom_err \
-		-lcrypt ${MINUSLPAM}
-
-.include <bsd.prog.mk>
-
-.PATH:	${TELNETDIR}/telnetd
diff --git a/kerberos5/usr.bin/Makefile b/kerberos5/usr.bin/Makefile
index 89c750371d34..86dea8af24aa 100644
--- a/kerberos5/usr.bin/Makefile
+++ b/kerberos5/usr.bin/Makefile
@@ -1,5 +1,5 @@
 # $FreeBSD$
 
-SUBDIR=	kadmin kdestroy kinit klist kpasswd ksu krb5-config telnet
+SUBDIR=	kadmin kdestroy kinit klist kpasswd ksu krb5-config
 
 .include <bsd.subdir.mk>
diff --git a/kerberos5/usr.bin/telnet/Makefile b/kerberos5/usr.bin/telnet/Makefile
deleted file mode 100644
index 329283b2381a..000000000000
--- a/kerberos5/usr.bin/telnet/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-# $FreeBSD$
-
-PROG=		telnet
-
-SRCS=		authenc.c commands.c main.c network.c ring.c sys_bsd.c \
-		telnet.c terminal.c utilities.c
-
-CFLAGS+=	-DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DOPIE \
-		-DENCRYPTION -DAUTHENTICATION -DIPSEC -DINET6 \
-		-I${TELNETDIR} -I${TELNETDIR}/libtelnet/
-
-CFLAGS+=	-DKRB5 -DFORWARD -Dnet_write=telnet_net_write
-
-WARNS?=		2
-
-DPADD=		${LIBTERMCAP} ${LIBTELNET} ${LIBMP} \
-		${LIBKRB5} ${LIBASN1} ${LIBCOM_ERR} ${LIBROKEN} \
-		${LIBCRYPTO} ${LIBCRYPT} ${LIBIPSEC} ${LIBPAM}
-LDADD=		-ltermcap ${LIBTELNET} -lmp \
-		-lkrb5 -lasn1 -lcom_err -lroken \
-		-lcrypto -lcrypt -lipsec ${MINUSLPAM}
-
-.include <bsd.prog.mk>
-
-.PATH:	${TELNETDIR}/telnet
diff --git a/lib/Makefile b/lib/Makefile
index ab5ae75b7ab9..1f6ca1bacf67 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -5,8 +5,8 @@
 # built are visible:
 #
 # csu must be built before all shared libaries for ELF.
-# libcom_err must be built before libkrb and libpam.
-# libcrypt must be built before libkrb and libpam.
+# libcom_err must be built before libkrb5 and libpam.
+# libcrypt must be built before libkrb5 and libpam.
 # libkvm must be built before libdevstat.
 # msun must be built before libg++ and libstdc++.
 # libmd must be built before libatm, libopie, libradius, and libtacplus.
@@ -29,7 +29,7 @@ SUBDIR=	${_csu} libcom_err libcrypt libkvm msun libmd \
 	libipx libisc libmenu ${_libmilter} ${_libmp} ${_libncp} \
 	libnetgraph libopie libpam libpanel libpcap ${_libpthread} \
 	${_libsm} ${_libsmb} ${_libsmdb} ${_libsmutil} \
-	libstand ${_libtelnet} ${_libthr} libufs libugidfw libusbhid \
+	libstand libtelnet ${_libthr} libufs libugidfw libusbhid \
 	${_libvgl} libwrap libxpg4 liby libz
 
 .if exists(${.CURDIR}/csu/${MACHINE_ARCH}-elf)
@@ -89,12 +89,6 @@ _compat=	compat
 _libdisk=	libdisk
 .endif
 
-.if defined(RELEASEDIR) || \
-    (!exists(${.CURDIR}/../secure) && !exists(${.CURDIR}/../kerberos5)) || \
-    defined(NOCRYPT) || defined(NO_OPENSSL) || defined(NO_KERBEROS)
-_libtelnet=	libtelnet
-.endif
-
 .if exists(${.CURDIR}/../crypto) && !defined(NOCRYPT) && !defined(NO_OPENSSL)
 _libmp=		libmp
 .endif
diff --git a/lib/libtelnet/Makefile b/lib/libtelnet/Makefile
index 542a2615290e..4ee31fb46985 100644
--- a/lib/libtelnet/Makefile
+++ b/lib/libtelnet/Makefile
@@ -1,33 +1,29 @@
 #	From: @(#)Makefile	8.2 (Berkeley) 12/15/93
 # $FreeBSD$
 
+TELNETDIR=	${.CURDIR}/../../contrib/telnet
+.PATH:		${TELNETDIR}/libtelnet
+
 LIB=		telnet
 
 INTERNALLIB=	yes
 
 SRCS=		genget.c getent.c misc.c
+CFLAGS+=	-I${TELNETDIR}
 
 WARNS?=		2
 
-unifdef:
-	-cd ${.CURDIR} ; \
-	( for i in *.[ch] ; do \
-		unifdef -UAUTHENTICATION -UENCRYPTION \
-			${.CURDIR}/../../crypto/telnet/libtelnet/$$i \
-				> ${.CURDIR}/$$i ; \
-		echo $$i ; \
-	done )
+.if !defined(NO_CRYPTO)
+SRCS+=		encrypt.c auth.c enc_des.c sra.c pk.c
+CFLAGS+=	-DENCRYPTION -DAUTHENTICATION -DSRA
+.if !defined(NO_KERBEROS)
+SRCS+=		kerberos5.c
+CFLAGS+=	-DKRB5 -I${KRB5DIR}/lib/krb5 -I${KRB5OBJDIR} -I${ASN1OBJDIR}
+CFLAGS+=	-DFORWARD -Dnet_write=telnet_net_write
+.endif
+.endif
+
+INCS=		${TELNETDIR}/arpa/telnet.h
+INCSDIR=	${INCLUDEDIR}/arpa
 
 .include <bsd.lib.mk>
-
-#
-# Remove obsolete shared libraries, if any.  We don't bother moving them
-# to /usr/lib/compat, since they were only used by telnet, telnetd and
-# tn3270.
-#
-beforeinstall: __remove-stale-libs
-__remove-stale-libs: .PHONY
-.if exists(${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0)
-	-chflags noschg ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0
-	rm -f ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0
-.endif
diff --git a/lib/libtelnet/genget.c b/lib/libtelnet/genget.c
deleted file mode 100644
index e24bb4458455..000000000000
--- a/lib/libtelnet/genget.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static const char sccsid[] = "@(#)genget.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif /* not lint */
-
-
-#include <ctype.h>
-
-#include "misc-proto.h"
-
-#define	LOWER(x) (isupper(x) ? tolower(x) : (x))
-/*
- * The prefix function returns 0 if *s1 is not a prefix
- * of *s2.  If *s1 exactly matches *s2, the negative of
- * the length is returned.  If *s1 is a prefix of *s2,
- * the length of *s1 is returned.
- */
-int
-isprefix(char *s1, const char *s2)
-{
-	char *os1;
-	char c1, c2;
-
-	if (*s1 == '\0')
-		return(-1);
-	os1 = s1;
-	c1 = *s1;
-	c2 = *s2;
-	while (LOWER(c1) == LOWER(c2)) {
-		if (c1 == '\0')
-			break;
-		c1 = *++s1;
-		c2 = *++s2;
-	}
-	return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1)));
-}
-
-static char *ambiguous;		/* special return value for command routines */
-
-char **
-genget(char *name, char **table, int stlen)
-{
-	char **c, **found;
-	int n;
-
-	if (name == 0)
-	    return 0;
-
-	found = 0;
-	for (c = table; *c != 0; c = (char **)((char *)c + stlen)) {
-		if ((n = isprefix(name, *c)) == 0)
-			continue;
-		if (n < 0)		/* exact match */
-			return(c);
-		if (found)
-			return(&ambiguous);
-		found = c;
-	}
-	return(found);
-}
-
-/*
- * Function call version of Ambiguous()
- */
-int
-Ambiguous(char **s)
-{
-	return(s == &ambiguous);
-}
diff --git a/lib/libtelnet/getent.c b/lib/libtelnet/getent.c
deleted file mode 100644
index d6e8d9c88475..000000000000
--- a/lib/libtelnet/getent.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)getent.c	8.2 (Berkeley) 12/15/93";
-#endif
-#endif /* not lint */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "misc-proto.h"
-
-static char *area;
-static char gettytab[] = "/etc/gettytab";
-
-/*ARGSUSED*/
-int
-getent(char *cp __unused, const char *name)
-{
-	int retval;
-	char *tempnam, *dba[2] = { gettytab, NULL };
-
-	tempnam = strdup(name);
-	retval =  cgetent(&area, dba, tempnam) == 0 ? 1 : 0;
-	free(tempnam);
-	return(retval);
-}
-
-/*ARGSUSED*/
-char *
-Getstr(const char *id, char **cpp __unused)
-{
-	int retval;
-	char *answer, *tempid;
-
-	tempid = strdup(id);
-	retval = cgetstr(area, tempid, &answer);
-	free(tempid);
-	return((retval > 0) ? answer : NULL);
-}
diff --git a/lib/libtelnet/misc-proto.h b/lib/libtelnet/misc-proto.h
deleted file mode 100644
index aea753c3ff93..000000000000
--- a/lib/libtelnet/misc-proto.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)misc-proto.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Copyright (C) 1990 by the Massachusetts Institute of Technology
- *
- * Export of this software from the United States of America is assumed
- * to require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#ifndef	__MISC_PROTO__
-#define	__MISC_PROTO__
-
-void auth_encrypt_init(char *, char *, const char *, int);
-void auth_encrypt_connect(int);
-void printd(const unsigned char *, int);
-
-int isprefix(char *, const char *);
-char **genget(char *, char **, int);
-int Ambiguous(char **);
-
-int getent(char *, const char *);
-char *Getstr(const char *, char **);
-
-/*
- * These functions are imported from the application
- */
-int net_write(unsigned char *, int);
-void net_encrypt(void);
-int telnet_spin(void);
-char *telnet_getenv(char *);
-char *telnet_gets(const char *, char *, int, int);
-void printsub(char, unsigned char *, int);
-#endif
diff --git a/lib/libtelnet/misc.c b/lib/libtelnet/misc.c
deleted file mode 100644
index 981208e725e1..000000000000
--- a/lib/libtelnet/misc.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-#if 0
-static const char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/4/93";
-#endif
-#endif /* not lint */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "misc.h"
-
-char *RemoteHostName;
-char *LocalHostName;
-char *UserNameRequested = 0;
-int ConnectedCount = 0;
-
-#define undef1 __unused
-
-void
-auth_encrypt_init(char *local, char *remote, const char *name undef1, int server undef1)
-{
-	RemoteHostName = remote;
-	LocalHostName = local;
-	if (UserNameRequested) {
-		free(UserNameRequested);
-		UserNameRequested = 0;
-	}
-}
-
-
-void
-printd(const unsigned char *data, int cnt)
-{
-	if (cnt > 16)
-		cnt = 16;
-	while (cnt-- > 0) {
-		printf(" %02x", *data);
-		++data;
-	}
-}
diff --git a/lib/libtelnet/misc.h b/lib/libtelnet/misc.h
deleted file mode 100644
index 41ffa7f67aa7..000000000000
--- a/lib/libtelnet/misc.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)misc.h	8.1 (Berkeley) 6/4/93
- */
-
-extern char *UserNameRequested;
-extern char *LocalHostName;
-extern char *RemoteHostName;
-extern int ConnectedCount;
-extern int ReservedPort;
-
-#include "misc-proto.h"
diff --git a/libexec/Makefile b/libexec/Makefile
index 97903815ab64..c4c3c13499c2 100644
--- a/libexec/Makefile
+++ b/libexec/Makefile
@@ -1,7 +1,6 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/4/93
 # $FreeBSD$
 
-# Present but disabled: kpasswdd
 SUBDIR=	atrun \
 	bootpd \
 	comsat \
@@ -26,6 +25,7 @@ SUBDIR=	atrun \
 	save-entropy \
 	talkd \
 	tcpd \
+	telnetd \
 	tftpd \
 	ypxfr
 
@@ -41,13 +41,6 @@ SUBDIR+=named-xfer
 SUBDIR+=mail.local smrsh
 .endif
 
-.if defined(RELEASEDIR) || \
-    (!exists(${.CURDIR}/../secure) && !exists(${.CURDIR}/../kerberos5)) || \
-    defined(NOCRYPT) || defined(NO_OPENSSL) || defined(NO_KERBEROS)
-# make release needs both
-SUBDIR+=telnetd
-.endif
-
 .if defined(WANT_LUKEMFTPD)
 SUBDIR+=lukemftpd
 .endif
diff --git a/libexec/telnetd/Makefile b/libexec/telnetd/Makefile
index 031000d0cff6..96d11fe6f58a 100644
--- a/libexec/telnetd/Makefile
+++ b/libexec/telnetd/Makefile
@@ -3,6 +3,9 @@
 # Do not define -DKLUDGELINEMODE, as it does not interact well with many
 # telnet implementations.
 
+TELNETDIR=	${.CURDIR}/../../contrib/telnet
+.PATH:		${TELNETDIR}/telnetd
+
 PROG=		telnetd
 MAN=		telnetd.8
 
@@ -11,7 +14,7 @@ SRCS=		global.c slc.c state.c sys_term.c telnetd.c \
 
 CFLAGS+=	-DLINEMODE -DUSE_TERMIO -DDIAGNOSTICS -DOLD_ENVIRON \
 		-DENV_HACK \
-		-I${.CURDIR}/../../lib -DINET6
+		-I${TELNETDIR} -DINET6
 
 WARNS?=		2
 WFORMAT?=	0
@@ -25,13 +28,16 @@ LIBTELNET=	${.CURDIR}/../../lib/libtelnet/libtelnet.a
 DPADD=		${LIBUTIL} ${LIBTERMCAP} ${LIBTELNET}
 LDADD=		-lutil -ltermcap ${LIBTELNET}
 
-unifdef:
-	-cd ${.CURDIR} ; \
-	( for i in *.[ch] ; do \
-		unifdef -UAUTHENTICATION -UENCRYPTION \
-			${.CURDIR}/../../crypto/telnet/telnetd/$$i \
-				> ${.CURDIR}/$$i ; \
-		echo $$i ; \
-	done )
+.if !defined(NO_CRYPTO)
+SRCS+=		authenc.c
+CFLAGS+=	-DAUTHENTICATION -DENCRYPTION
+DPADD+=		${LIBMP} ${LIBCRYPTO} ${LIBCRYPT} ${LIBPAM}
+LDADD+=		-lmp -lcrypto -lcrypt ${MINUSLPAM}
+.if !defined(NO_KERBEROS)
+CFLAGS+=	-DKRB5 -DFORWARD -Dnet_write=telnet_net_write
+DPADD+=		${LIBKRB5} ${LIBASN1} ${LIBROKEN} ${LIBCOM_ERR}
+LDADD+=		-lkrb5 -lasn1 -lroken -lcom_err
+.endif
+.endif
 
 .include <bsd.prog.mk>
diff --git a/libexec/telnetd/defs.h b/libexec/telnetd/defs.h
deleted file mode 100644
index d727f367c045..000000000000
--- a/libexec/telnetd/defs.h
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)defs.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-/*
- * Telnet server defines
- */
-#include <sys/types.h>
-#include <sys/param.h>
-
-#ifndef	BSD
-# define	BSD 43
-#endif
-
-#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS)
-#define TELOPTS
-#define TELCMDS
-#define	SLC_NAMES
-#endif
-
-#if	defined(SYSV_TERMIO) && !defined(USE_TERMIO)
-# define	USE_TERMIO
-#endif
-
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include <fcntl.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#ifndef	FILIO_H
-#include <sys/ioctl.h>
-#else
-#include <sys/filio.h>
-#endif
-
-#include <netinet/in.h>
-
-#include <arpa/telnet.h>
-
-#include <stdio.h>
-#ifdef	__STDC__
-#include <stdlib.h>
-#endif
-#include <signal.h>
-#include <errno.h>
-#include <netdb.h>
-#include <syslog.h>
-#ifndef	LOG_DAEMON
-#define	LOG_DAEMON	0
-#endif
-#ifndef	LOG_ODELAY
-#define	LOG_ODELAY	0
-#endif
-#include <ctype.h>
-#ifndef NO_STRING_H
-#include <string.h>
-#else
-#include <strings.h>
-#endif
-
-#ifndef	USE_TERMIO
-#include <sgtty.h>
-#else
-# ifdef	SYSV_TERMIO
-# include <termio.h>
-# else
-# include <termios.h>
-# endif
-#endif
-#if !defined(USE_TERMIO) || defined(NO_CC_T)
-typedef unsigned char cc_t;
-#endif
-
-#ifdef	__STDC__
-#include <unistd.h>
-#endif
-
-#ifndef _POSIX_VDISABLE
-# ifdef VDISABLE
-#  define _POSIX_VDISABLE VDISABLE
-# else
-#  define _POSIX_VDISABLE ((unsigned char)'\377')
-# endif
-#endif
-
-#if	!defined(TIOCSCTTY) && defined(TCSETCTTY)
-# define	TIOCSCTTY TCSETCTTY
-#endif
-
-#ifndef	FD_SET
-#ifndef	HAVE_fd_set
-typedef struct fd_set { int fds_bits[1]; } fd_set;
-#endif
-
-#define	FD_SET(n, p)	((p)->fds_bits[0] |= (1<<(n)))
-#define	FD_CLR(n, p)	((p)->fds_bits[0] &= ~(1<<(n)))
-#define	FD_ISSET(n, p)	((p)->fds_bits[0] & (1<<(n)))
-#define FD_ZERO(p)	((p)->fds_bits[0] = 0)
-#endif	/* FD_SET */
-
-/*
- * I/O data buffers defines
- */
-#define	NETSLOP	64
-
-#define	NIACCUM(c)	{   *netip++ = c; \
-			    ncc++; \
-			}
-
-/* clock manipulations */
-#define	settimer(x)	(clocks.x = ++clocks.system)
-#define	sequenceIs(x,y)	(clocks.x < clocks.y)
-
-/*
- * Linemode support states, in decreasing order of importance
- */
-#define REAL_LINEMODE	0x04
-#define KLUDGE_OK	0x03
-#define	NO_AUTOKLUDGE	0x02
-#define KLUDGE_LINEMODE	0x01
-#define NO_LINEMODE	0x00
-
-/*
- * Structures of information for each special character function.
- */
-typedef struct {
-	unsigned char	flag;		/* the flags for this function */
-	cc_t		val;		/* the value of the special character */
-} slcent, *Slcent;
-
-typedef struct {
-	slcent		defset;		/* the default settings */
-	slcent		current;	/* the current settings */
-	cc_t		*sptr;		/* a pointer to the char in */
-					/* system data structures */
-} slcfun, *Slcfun;
-
-#ifdef DIAGNOSTICS
-/*
- * Diagnostics capabilities
- */
-#define	TD_REPORT	0x01	/* Report operations to client */
-#define TD_EXERCISE	0x02	/* Exercise client's implementation */
-#define TD_NETDATA	0x04	/* Display received data stream */
-#define TD_PTYDATA	0x08	/* Display data passed to pty */
-#define	TD_OPTIONS	0x10	/* Report just telnet options */
-#endif /* DIAGNOSTICS */
-
-/*
- * We keep track of each side of the option negotiation.
- */
-
-#define	MY_STATE_WILL		0x01
-#define	MY_WANT_STATE_WILL	0x02
-#define	MY_STATE_DO		0x04
-#define	MY_WANT_STATE_DO	0x08
-
-/*
- * Macros to check the current state of things
- */
-
-#define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)
-#define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)
-#define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)
-#define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)
-
-#define	my_state_is_dont(opt)		(!my_state_is_do(opt))
-#define	my_state_is_wont(opt)		(!my_state_is_will(opt))
-#define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))
-#define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))
-
-#define	set_my_state_do(opt)		(options[opt] |= MY_STATE_DO)
-#define	set_my_state_will(opt)		(options[opt] |= MY_STATE_WILL)
-#define	set_my_want_state_do(opt)	(options[opt] |= MY_WANT_STATE_DO)
-#define	set_my_want_state_will(opt)	(options[opt] |= MY_WANT_STATE_WILL)
-
-#define	set_my_state_dont(opt)		(options[opt] &= ~MY_STATE_DO)
-#define	set_my_state_wont(opt)		(options[opt] &= ~MY_STATE_WILL)
-#define	set_my_want_state_dont(opt)	(options[opt] &= ~MY_WANT_STATE_DO)
-#define	set_my_want_state_wont(opt)	(options[opt] &= ~MY_WANT_STATE_WILL)
-
-/*
- * Tricky code here.  What we want to know is if the MY_STATE_WILL
- * and MY_WANT_STATE_WILL bits have the same value.  Since the two
- * bits are adjacent, a little arithmatic will show that by adding
- * in the lower bit, the upper bit will be set if the two bits were
- * different, and clear if they were the same.
- */
-#define my_will_wont_is_changing(opt) \
-			((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
-
-#define my_do_dont_is_changing(opt) \
-			((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
-
-/*
- * Make everything symetrical
- */
-
-#define	HIS_STATE_WILL			MY_STATE_DO
-#define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO
-#define HIS_STATE_DO			MY_STATE_WILL
-#define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL
-
-#define	his_state_is_do			my_state_is_will
-#define	his_state_is_will		my_state_is_do
-#define his_want_state_is_do		my_want_state_is_will
-#define his_want_state_is_will		my_want_state_is_do
-
-#define	his_state_is_dont		my_state_is_wont
-#define	his_state_is_wont		my_state_is_dont
-#define his_want_state_is_dont		my_want_state_is_wont
-#define his_want_state_is_wont		my_want_state_is_dont
-
-#define	set_his_state_do		set_my_state_will
-#define	set_his_state_will		set_my_state_do
-#define	set_his_want_state_do		set_my_want_state_will
-#define	set_his_want_state_will		set_my_want_state_do
-
-#define	set_his_state_dont		set_my_state_wont
-#define	set_his_state_wont		set_my_state_dont
-#define	set_his_want_state_dont		set_my_want_state_wont
-#define	set_his_want_state_wont		set_my_want_state_dont
-
-#define his_will_wont_is_changing	my_do_dont_is_changing
-#define his_do_dont_is_changing		my_will_wont_is_changing
diff --git a/libexec/telnetd/ext.h b/libexec/telnetd/ext.h
deleted file mode 100644
index 04aa4a3a629a..000000000000
--- a/libexec/telnetd/ext.h
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)ext.h	8.2 (Berkeley) 12/15/93
- * $FreeBSD$
- */
-
-/*
- * Telnet server variable declarations
- */
-extern char	options[256];
-extern char	do_dont_resp[256];
-extern char	will_wont_resp[256];
-extern int	linemode;	/* linemode on/off */
-#ifdef	LINEMODE
-extern int	uselinemode;	/* what linemode to use (on/off) */
-extern int	editmode;	/* edit modes in use */
-extern int	useeditmode;	/* edit modes to use */
-extern int	alwayslinemode;	/* command line option */
-extern int	lmodetype;	/* Client support for linemode */
-#endif	/* LINEMODE */
-extern int	flowmode;	/* current flow control state */
-extern int	restartany;	/* restart output on any character state */
-#ifdef DIAGNOSTICS
-extern int	diagnostic;	/* telnet diagnostic capabilities */
-#endif /* DIAGNOSTICS */
-#ifdef BFTPDAEMON
-extern int	bftpd;		/* behave as bftp daemon */
-#endif /* BFTPDAEMON */
-
-extern slcfun	slctab[NSLC + 1];	/* slc mapping table */
-
-char	*terminaltype;
-
-/*
- * I/O data buffers, pointers, and counters.
- */
-extern char	ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
-
-extern char	netibuf[BUFSIZ], *netip;
-
-extern char	netobuf[BUFSIZ], *nfrontp, *nbackp;
-extern char	*neturg;		/* one past last bye of urgent data */
-
-extern int	pcc, ncc;
-
-extern int	pty, net;
-extern char	line[16];
-extern int	SYNCHing;		/* we are in TELNET SYNCH mode */
-
-extern void
-	_termstat(void),
-	add_slc(char, char, cc_t),
-	check_slc(void),
-	change_slc(char, char, cc_t),
-	cleanup(int),
-	clientstat(int, int, int),
-	copy_termbuf(char *, size_t),
-	deferslc(void),
-	defer_terminit(void),
-	do_opt_slc(unsigned char *, int),
-	doeof(void),
-	dooption(int),
-	dontoption(int),
-	edithost(char *, char *),
-	fatal(int, const char *),
-	fatalperror(int, const char *),
-	get_slc_defaults(void),
-	init_env(void),
-	init_termbuf(void),
-	interrupt(void),
-	localstat(void),
-	flowstat(void),
-	netclear(void),
-	netflush(void),
-#ifdef DIAGNOSTICS
-	printoption(const char *, int),
-	printdata(const char *, char *, int),
-	printsub(char, unsigned char *, int),
-#endif
-	process_slc(unsigned char, unsigned char, cc_t),
-	ptyflush(void),
-	putchr(int),
-	putf(char *, char *),
-	recv_ayt(void),
-	send_do(int, int),
-	send_dont(int, int),
-	send_slc(void),
-	send_status(void),
-	send_will(int, int),
-	send_wont(int, int),
-	sendbrk(void),
-	sendsusp(void),
-	set_termbuf(void),
-	start_login(char *, int, char *),
-	start_slc(int),
-	start_slave(char *, int, char *),
-	suboption(void),
-	telrcv(void),
-	ttloop(void),
-	tty_binaryin(int),
-	tty_binaryout(int);
-
-extern int
-	end_slc(unsigned char **),
-	getnpty(void),
-#ifndef convex
-	getpty(int *),
-#endif
-	login_tty(int),
-	spcset(int, cc_t *, cc_t **),
-	stilloob(int),
-	terminit(void),
-	termstat(void),
-	tty_flowmode(void),
-	tty_restartany(void),
-	tty_isbinaryin(void),
-	tty_isbinaryout(void),
-	tty_iscrnl(void),
-	tty_isecho(void),
-	tty_isediting(void),
-	tty_islitecho(void),
-	tty_isnewmap(void),
-	tty_israw(void),
-	tty_issofttab(void),
-	tty_istrapsig(void),
-	tty_linemode(void);
-
-extern void
-	tty_rspeed(int),
-	tty_setecho(int),
-	tty_setedit(int),
-	tty_setlinemode(int),
-	tty_setlitecho(int),
-	tty_setsig(int),
-	tty_setsofttab(int),
-	tty_tspeed(int),
-	willoption(int),
-	wontoption(int);
-
-int	output_data(const char *, ...) __printflike(1, 2);
-void	output_datalen(const char *, int);
-void	startslave(char *, int, char *);
-
-
-
-/*
- * The following are some clocks used to decide how to interpret
- * the relationship between various variables.
- */
-
-extern struct {
-    int
-	system,			/* what the current time is */
-	echotoggle,		/* last time user entered echo character */
-	modenegotiated,		/* last time operating mode negotiated */
-	didnetreceive,		/* last time we read data from network */
-	ttypesubopt,		/* ttype subopt is received */
-	tspeedsubopt,		/* tspeed subopt is received */
-	environsubopt,		/* environ subopt is received */
-	oenvironsubopt,		/* old environ subopt is received */
-	xdisplocsubopt,		/* xdisploc subopt is received */
-	baseline,		/* time started to do timed action */
-	gotDM;			/* when did we last see a data mark */
-} clocks;
-
-#ifndef	DEFAULT_IM
-#   ifdef ultrix
-#    define DEFAULT_IM	"\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r"
-#   else
-#    ifdef __FreeBSD__
-#     define DEFAULT_IM  "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r"
-#    else
-#    define DEFAULT_IM	"\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r"
-#    endif
-#   endif
-#endif
diff --git a/libexec/telnetd/global.c b/libexec/telnetd/global.c
deleted file mode 100644
index 2ed82d0b6aee..000000000000
--- a/libexec/telnetd/global.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)global.c	8.1 (Berkeley) 6/4/93";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * Allocate global variables.  We do this
- * by including the header file that defines
- * them all as externs, but first we define
- * the keyword "extern" to be nothing, so that
- * we will actually allocate the space.
- */
-
-#include "defs.h"
-#define extern
-#include "ext.h"
diff --git a/libexec/telnetd/pathnames.h b/libexec/telnetd/pathnames.h
deleted file mode 100644
index ed8ee887a39e..000000000000
--- a/libexec/telnetd/pathnames.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)pathnames.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-#if BSD > 43
-
-# include <paths.h>
-
-# ifndef _PATH_LOGIN
-#  define	_PATH_LOGIN	"/usr/bin/login"
-# endif
-
-#else
-
-# define	_PATH_TTY	"/dev/tty"
-# ifndef _PATH_LOGIN
-#  define	_PATH_LOGIN	"/bin/login"
-# endif
-
-#endif
-
-#ifdef BFTPDAEMON
-#define		BFTPPATH	"/usr/ucb/bftp"
-#endif  /* BFTPDAEMON */
diff --git a/libexec/telnetd/slc.c b/libexec/telnetd/slc.c
deleted file mode 100644
index ad034418d313..000000000000
--- a/libexec/telnetd/slc.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)slc.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "telnetd.h"
-
-#ifdef	LINEMODE
-/*
- * local variables
- */
-static unsigned char	*def_slcbuf = (unsigned char *)0;
-static int		def_slclen = 0;
-static int		slcchange;	/* change to slc is requested */
-static unsigned char	*slcptr;	/* pointer into slc buffer */
-static unsigned char	slcbuf[NSLC*6];	/* buffer for slc negotiation */
-
-/*
- * send_slc
- *
- * Write out the current special characters to the client.
- */
-void
-send_slc(void)
-{
-	int i;
-
-	/*
-	 * Send out list of triplets of special characters
-	 * to client.  We only send info on the characters
-	 * that are currently supported.
-	 */
-	for (i = 1; i <= NSLC; i++) {
-		if ((slctab[i].defset.flag & SLC_LEVELBITS) == SLC_NOSUPPORT)
-			continue;
-		add_slc((unsigned char)i, slctab[i].current.flag,
-							slctab[i].current.val);
-	}
-
-}  /* end of send_slc */
-
-/*
- * default_slc
- *
- * Set pty special characters to all the defaults.
- */
-static void
-default_slc(void)
-{
-	int i;
-
-	for (i = 1; i <= NSLC; i++) {
-		slctab[i].current.val = slctab[i].defset.val;
-		if (slctab[i].current.val == (cc_t)(_POSIX_VDISABLE))
-			slctab[i].current.flag = SLC_NOSUPPORT;
-		else
-			slctab[i].current.flag = slctab[i].defset.flag;
-		if (slctab[i].sptr) {
-			*(slctab[i].sptr) = slctab[i].defset.val;
-		}
-	}
-	slcchange = 1;
-
-}  /* end of default_slc */
-#endif	/* LINEMODE */
-
-/*
- * get_slc_defaults
- *
- * Initialize the slc mapping table.
- */
-void
-get_slc_defaults(void)
-{
-	int i;
-
-	init_termbuf();
-
-	for (i = 1; i <= NSLC; i++) {
-		slctab[i].defset.flag =
-			spcset(i, &slctab[i].defset.val, &slctab[i].sptr);
-		slctab[i].current.flag = SLC_NOSUPPORT;
-		slctab[i].current.val = 0;
-	}
-
-}  /* end of get_slc_defaults */
-
-#ifdef	LINEMODE
-/*
- * add_slc
- *
- * Add an slc triplet to the slc buffer.
- */
-void
-add_slc(char func, char flag, cc_t val)
-{
-
-	if ((*slcptr++ = (unsigned char)func) == 0xff)
-		*slcptr++ = 0xff;
-
-	if ((*slcptr++ = (unsigned char)flag) == 0xff)
-		*slcptr++ = 0xff;
-
-	if ((*slcptr++ = (unsigned char)val) == 0xff)
-		*slcptr++ = 0xff;
-
-}  /* end of add_slc */
-
-/*
- * start_slc
- *
- * Get ready to process incoming slc's and respond to them.
- *
- * The parameter getit is non-zero if it is necessary to grab a copy
- * of the terminal control structures.
- */
-void
-start_slc(int getit)
-{
-
-	slcchange = 0;
-	if (getit)
-		init_termbuf();
-	(void) sprintf((char *)slcbuf, "%c%c%c%c",
-					IAC, SB, TELOPT_LINEMODE, LM_SLC);
-	slcptr = slcbuf + 4;
-
-}  /* end of start_slc */
-
-/*
- * end_slc
- *
- * Finish up the slc negotiation.  If something to send, then send it.
- */
-int
-end_slc(unsigned char **bufp)
-{
-	int len;
-
-	/*
-	 * If a change has occured, store the new terminal control
-	 * structures back to the terminal driver.
-	 */
-	if (slcchange) {
-		set_termbuf();
-	}
-
-	/*
-	 * If the pty state has not yet been fully processed and there is a
-	 * deferred slc request from the client, then do not send any
-	 * sort of slc negotiation now.  We will respond to the client's
-	 * request very soon.
-	 */
-	if (def_slcbuf && (terminit() == 0)) {
-		return(0);
-	}
-
-	if (slcptr > (slcbuf + 4)) {
-		if (bufp) {
-			*bufp = &slcbuf[4];
-			return(slcptr - slcbuf - 4);
-		} else {
-			(void) sprintf((char *)slcptr, "%c%c", IAC, SE);
-			slcptr += 2;
-			len = slcptr - slcbuf;
-			output_datalen(slcbuf, len);
-			netflush();  /* force it out immediately */
-			DIAG(TD_OPTIONS, printsub('>', slcbuf+2, len-2););
-		}
-	}
-	return (0);
-
-}  /* end of end_slc */
-
-/*
- * process_slc
- *
- * Figure out what to do about the client's slc
- */
-void
-process_slc(unsigned char func, unsigned char flag, cc_t val)
-{
-	int hislevel, mylevel, ack;
-
-	/*
-	 * Ensure that we know something about this function
-	 */
-	if (func > NSLC) {
-		add_slc(func, SLC_NOSUPPORT, 0);
-		return;
-	}
-
-	/*
-	 * Process the special case requests of 0 SLC_DEFAULT 0
-	 * and 0 SLC_VARIABLE 0.  Be a little forgiving here, don't
-	 * worry about whether the value is actually 0 or not.
-	 */
-	if (func == 0) {
-		if ((flag = flag & SLC_LEVELBITS) == SLC_DEFAULT) {
-			default_slc();
-			send_slc();
-		} else if (flag == SLC_VARIABLE) {
-			send_slc();
-		}
-		return;
-	}
-
-	/*
-	 * Appears to be a function that we know something about.  So
-	 * get on with it and see what we know.
-	 */
-
-	hislevel = flag & SLC_LEVELBITS;
-	mylevel = slctab[func].current.flag & SLC_LEVELBITS;
-	ack = flag & SLC_ACK;
-	/*
-	 * ignore the command if:
-	 * the function value and level are the same as what we already have;
-	 * or the level is the same and the ack bit is set
-	 */
-	if (hislevel == mylevel && (val == slctab[func].current.val || ack)) {
-		return;
-	} else if (ack) {
-		/*
-		 * If we get here, we got an ack, but the levels don't match.
-		 * This shouldn't happen.  If it does, it is probably because
-		 * we have sent two requests to set a variable without getting
-		 * a response between them, and this is the first response.
-		 * So, ignore it, and wait for the next response.
-		 */
-		return;
-	} else {
-		change_slc(func, flag, val);
-	}
-
-}  /* end of process_slc */
-
-/*
- * change_slc
- *
- * Process a request to change one of our special characters.
- * Compare client's request with what we are capable of supporting.
- */
-void
-change_slc(char func, char flag, cc_t val)
-{
-	int hislevel, mylevel;
-
-	hislevel = flag & SLC_LEVELBITS;
-	mylevel = slctab[(int)func].defset.flag & SLC_LEVELBITS;
-	/*
-	 * If client is setting a function to NOSUPPORT
-	 * or DEFAULT, then we can easily and directly
-	 * accomodate the request.
-	 */
-	if (hislevel == SLC_NOSUPPORT) {
-		slctab[(int)func].current.flag = flag;
-		slctab[(int)func].current.val = (cc_t)_POSIX_VDISABLE;
-		flag |= SLC_ACK;
-		add_slc(func, flag, val);
-		return;
-	}
-	if (hislevel == SLC_DEFAULT) {
-		/*
-		 * Special case here.  If client tells us to use
-		 * the default on a function we don't support, then
-		 * return NOSUPPORT instead of what we may have as a
-		 * default level of DEFAULT.
-		 */
-		if (mylevel == SLC_DEFAULT) {
-			slctab[(int)func].current.flag = SLC_NOSUPPORT;
-		} else {
-			slctab[(int)func].current.flag = slctab[(int)func].defset.flag;
-		}
-		slctab[(int)func].current.val = slctab[(int)func].defset.val;
-		add_slc(func, slctab[(int)func].current.flag,
-						slctab[(int)func].current.val);
-		return;
-	}
-
-	/*
-	 * Client wants us to change to a new value or he
-	 * is telling us that he can't change to our value.
-	 * Some of the slc's we support and can change,
-	 * some we do support but can't change,
-	 * and others we don't support at all.
-	 * If we can change it then we have a pointer to
-	 * the place to put the new value, so change it,
-	 * otherwise, continue the negotiation.
-	 */
-	if (slctab[(int)func].sptr) {
-		/*
-		 * We can change this one.
-		 */
-		slctab[(int)func].current.val = val;
-		*(slctab[(int)func].sptr) = val;
-		slctab[(int)func].current.flag = flag;
-		flag |= SLC_ACK;
-		slcchange = 1;
-		add_slc(func, flag, val);
-	} else {
-		/*
-		* It is not possible for us to support this
-		* request as he asks.
-		*
-		* If our level is DEFAULT, then just ack whatever was
-		* sent.
-		*
-		* If he can't change and we can't change,
-		* then degenerate to NOSUPPORT.
-		*
-		* Otherwise we send our level back to him, (CANTCHANGE
-		* or NOSUPPORT) and if CANTCHANGE, send
-		* our value as well.
-		*/
-		if (mylevel == SLC_DEFAULT) {
-			slctab[(int)func].current.flag = flag;
-			slctab[(int)func].current.val = val;
-			flag |= SLC_ACK;
-		} else if (hislevel == SLC_CANTCHANGE &&
-				    mylevel == SLC_CANTCHANGE) {
-			flag &= ~SLC_LEVELBITS;
-			flag |= SLC_NOSUPPORT;
-			slctab[(int)func].current.flag = flag;
-		} else {
-			flag &= ~SLC_LEVELBITS;
-			flag |= mylevel;
-			slctab[(int)func].current.flag = flag;
-			if (mylevel == SLC_CANTCHANGE) {
-				slctab[(int)func].current.val =
-					slctab[(int)func].defset.val;
-				val = slctab[(int)func].current.val;
-			}
-		}
-		add_slc(func, flag, val);
-	}
-
-}  /* end of change_slc */
-
-#if	defined(USE_TERMIO) && (VEOF == VMIN)
-cc_t oldeofc = '\004';
-#endif
-
-/*
- * check_slc
- *
- * Check the special characters in use and notify the client if any have
- * changed.  Only those characters that are capable of being changed are
- * likely to have changed.  If a local change occurs, kick the support level
- * and flags up to the defaults.
- */
-void
-check_slc(void)
-{
-	int i;
-
-	for (i = 1; i <= NSLC; i++) {
-#if	defined(USE_TERMIO) && (VEOF == VMIN)
-		/*
-		 * In a perfect world this would be a neat little
-		 * function.  But in this world, we should not notify
-		 * client of changes to the VEOF char when
-		 * ICANON is off, because it is not representing
-		 * a special character.
-		 */
-		if (i == SLC_EOF) {
-			if (!tty_isediting())
-				continue;
-			else if (slctab[i].sptr)
-				oldeofc = *(slctab[i].sptr);
-		}
-#endif	/* defined(USE_TERMIO) && defined(SYSV_TERMIO) */
-		if (slctab[i].sptr &&
-				(*(slctab[i].sptr) != slctab[i].current.val)) {
-			slctab[i].current.val = *(slctab[i].sptr);
-			if (*(slctab[i].sptr) == (cc_t)_POSIX_VDISABLE)
-				slctab[i].current.flag = SLC_NOSUPPORT;
-			else
-				slctab[i].current.flag = slctab[i].defset.flag;
-			add_slc((unsigned char)i, slctab[i].current.flag,
-						slctab[i].current.val);
-		}
-	}
-}  /* check_slc */
-
-/*
- * do_opt_slc
- *
- * Process an slc option buffer.  Defer processing of incoming slc's
- * until after the terminal state has been processed.  Save the first slc
- * request that comes along, but discard all others.
- *
- * ptr points to the beginning of the buffer, len is the length.
- */
-void
-do_opt_slc(unsigned char *ptr, int len)
-{
-	unsigned char func, flag;
-	cc_t val;
-	unsigned char *end = ptr + len;
-
-	if (terminit()) {  /* go ahead */
-		while (ptr < end) {
-			func = *ptr++;
-			if (ptr >= end) break;
-			flag = *ptr++;
-			if (ptr >= end) break;
-			val = (cc_t)*ptr++;
-
-			process_slc(func, flag, val);
-
-		}
-	} else {
-		/*
-		 * save this slc buffer if it is the first, otherwise dump
-		 * it.
-		 */
-		if (def_slcbuf == (unsigned char *)0) {
-			def_slclen = len;
-			def_slcbuf = (unsigned char *)malloc((unsigned)len);
-			if (def_slcbuf == (unsigned char *)0)
-				return;  /* too bad */
-			memmove(def_slcbuf, ptr, len);
-		}
-	}
-
-}  /* end of do_opt_slc */
-
-/*
- * deferslc
- *
- * Do slc stuff that was deferred.
- */
-void
-deferslc(void)
-{
-	if (def_slcbuf) {
-		start_slc(1);
-		do_opt_slc(def_slcbuf, def_slclen);
-		(void) end_slc(0);
-		free(def_slcbuf);
-		def_slcbuf = (unsigned char *)0;
-		def_slclen = 0;
-	}
-
-}  /* end of deferslc */
-
-#endif	/* LINEMODE */
diff --git a/libexec/telnetd/state.c b/libexec/telnetd/state.c
deleted file mode 100644
index 7b733e4743cf..000000000000
--- a/libexec/telnetd/state.c
+++ /dev/null
@@ -1,1512 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)state.c	8.5 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <stdarg.h>
-#include "telnetd.h"
-
-unsigned char	doopt[] = { IAC, DO, '%', 'c', 0 };
-unsigned char	dont[] = { IAC, DONT, '%', 'c', 0 };
-unsigned char	will[] = { IAC, WILL, '%', 'c', 0 };
-unsigned char	wont[] = { IAC, WONT, '%', 'c', 0 };
-int	not42 = 1;
-
-/*
- * Buffer for sub-options, and macros
- * for suboptions buffer manipulations
- */
-unsigned char subbuffer[512], *subpointer= subbuffer, *subend= subbuffer;
-
-#define	SB_CLEAR()	subpointer = subbuffer
-#define	SB_TERM()	{ subend = subpointer; SB_CLEAR(); }
-#define	SB_ACCUM(c)	if (subpointer < (subbuffer+sizeof subbuffer)) { \
-				*subpointer++ = (c); \
-			}
-#define	SB_GET()	((*subpointer++)&0xff)
-#define	SB_EOF()	(subpointer >= subend)
-#define	SB_LEN()	(subend - subpointer)
-
-#ifdef	ENV_HACK
-unsigned char *subsave;
-#define SB_SAVE()	subsave = subpointer;
-#define	SB_RESTORE()	subpointer = subsave;
-#endif
-
-
-/*
- * State for recv fsm
- */
-#define	TS_DATA		0	/* base state */
-#define	TS_IAC		1	/* look for double IAC's */
-#define	TS_CR		2	/* CR-LF ->'s CR */
-#define	TS_SB		3	/* throw away begin's... */
-#define	TS_SE		4	/* ...end's (suboption negotiation) */
-#define	TS_WILL		5	/* will option negotiation */
-#define	TS_WONT		6	/* wont " */
-#define	TS_DO		7	/* do " */
-#define	TS_DONT		8	/* dont " */
-
-static void doclientstat(void);
-
-void
-telrcv(void)
-{
-	int c;
-	static int state = TS_DATA;
-
-	while (ncc > 0) {
-		if ((&ptyobuf[BUFSIZ] - pfrontp) < 2)
-			break;
-		c = *netip++ & 0377, ncc--;
-		switch (state) {
-
-		case TS_CR:
-			state = TS_DATA;
-			/* Strip off \n or \0 after a \r */
-			if ((c == 0) || (c == '\n')) {
-				break;
-			}
-			/* FALLTHROUGH */
-
-		case TS_DATA:
-			if (c == IAC) {
-				state = TS_IAC;
-				break;
-			}
-			/*
-			 * We now map \r\n ==> \r for pragmatic reasons.
-			 * Many client implementations send \r\n when
-			 * the user hits the CarriageReturn key.
-			 *
-			 * We USED to map \r\n ==> \n, since \r\n says
-			 * that we want to be in column 1 of the next
-			 * printable line, and \n is the standard
-			 * unix way of saying that (\r is only good
-			 * if CRMOD is set, which it normally is).
-			 */
-			if ((c == '\r') && his_state_is_wont(TELOPT_BINARY)) {
-				int nc = *netip;
-#ifdef	LINEMODE
-				/*
-				 * If we are operating in linemode,
-				 * convert to local end-of-line.
-				 */
-				if (linemode && (ncc > 0) && (('\n' == nc) ||
-					 ((0 == nc) && tty_iscrnl())) ) {
-					netip++; ncc--;
-					c = '\n';
-				} else
-#endif
-				{
-					state = TS_CR;
-				}
-			}
-			*pfrontp++ = c;
-			break;
-
-		case TS_IAC:
-gotiac:			switch (c) {
-
-			/*
-			 * Send the process on the pty side an
-			 * interrupt.  Do this with a NULL or
-			 * interrupt char; depending on the tty mode.
-			 */
-			case IP:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				interrupt();
-				break;
-
-			case BREAK:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				sendbrk();
-				break;
-
-			/*
-			 * Are You There?
-			 */
-			case AYT:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				recv_ayt();
-				break;
-
-			/*
-			 * Abort Output
-			 */
-			case AO:
-			    {
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				ptyflush();	/* half-hearted */
-				init_termbuf();
-
-				if (slctab[SLC_AO].sptr &&
-				    *slctab[SLC_AO].sptr != (cc_t)(_POSIX_VDISABLE)) {
-				    *pfrontp++ =
-					(unsigned char)*slctab[SLC_AO].sptr;
-				}
-
-				netclear();	/* clear buffer back */
-				output_data("%c%c", IAC, DM);
-				neturg = nfrontp-1; /* off by one XXX */
-				DIAG(TD_OPTIONS,
-					printoption("td: send IAC", DM));
-				break;
-			    }
-
-			/*
-			 * Erase Character and
-			 * Erase Line
-			 */
-			case EC:
-			case EL:
-			    {
-				cc_t ch;
-
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				ptyflush();	/* half-hearted */
-				init_termbuf();
-				if (c == EC)
-					ch = *slctab[SLC_EC].sptr;
-				else
-					ch = *slctab[SLC_EL].sptr;
-				if (ch != (cc_t)(_POSIX_VDISABLE))
-					*pfrontp++ = (unsigned char)ch;
-				break;
-			    }
-
-			/*
-			 * Check for urgent data...
-			 */
-			case DM:
-				DIAG(TD_OPTIONS,
-					printoption("td: recv IAC", c));
-				SYNCHing = stilloob(net);
-				settimer(gotDM);
-				break;
-
-
-			/*
-			 * Begin option subnegotiation...
-			 */
-			case SB:
-				state = TS_SB;
-				SB_CLEAR();
-				continue;
-
-			case WILL:
-				state = TS_WILL;
-				continue;
-
-			case WONT:
-				state = TS_WONT;
-				continue;
-
-			case DO:
-				state = TS_DO;
-				continue;
-
-			case DONT:
-				state = TS_DONT;
-				continue;
-			case EOR:
-				if (his_state_is_will(TELOPT_EOR))
-					doeof();
-				break;
-
-			/*
-			 * Handle RFC 10xx Telnet linemode option additions
-			 * to command stream (EOF, SUSP, ABORT).
-			 */
-			case xEOF:
-				doeof();
-				break;
-
-			case SUSP:
-				sendsusp();
-				break;
-
-			case ABORT:
-				sendbrk();
-				break;
-
-			case IAC:
-				*pfrontp++ = c;
-				break;
-			}
-			state = TS_DATA;
-			break;
-
-		case TS_SB:
-			if (c == IAC) {
-				state = TS_SE;
-			} else {
-				SB_ACCUM(c);
-			}
-			break;
-
-		case TS_SE:
-			if (c != SE) {
-				if (c != IAC) {
-					/*
-					 * bad form of suboption negotiation.
-					 * handle it in such a way as to avoid
-					 * damage to local state.  Parse
-					 * suboption buffer found so far,
-					 * then treat remaining stream as
-					 * another command sequence.
-					 */
-
-					/* for DIAGNOSTICS */
-					SB_ACCUM(IAC);
-					SB_ACCUM(c);
-					subpointer -= 2;
-
-					SB_TERM();
-					suboption();
-					state = TS_IAC;
-					goto gotiac;
-				}
-				SB_ACCUM(c);
-				state = TS_SB;
-			} else {
-				/* for DIAGNOSTICS */
-				SB_ACCUM(IAC);
-				SB_ACCUM(SE);
-				subpointer -= 2;
-
-				SB_TERM();
-				suboption();	/* handle sub-option */
-				state = TS_DATA;
-			}
-			break;
-
-		case TS_WILL:
-			willoption(c);
-			state = TS_DATA;
-			continue;
-
-		case TS_WONT:
-			wontoption(c);
-			state = TS_DATA;
-			continue;
-
-		case TS_DO:
-			dooption(c);
-			state = TS_DATA;
-			continue;
-
-		case TS_DONT:
-			dontoption(c);
-			state = TS_DATA;
-			continue;
-
-		default:
-			syslog(LOG_ERR, "panic state=%d", state);
-			printf("telnetd: panic state=%d\n", state);
-			exit(1);
-		}
-	}
-}  /* end of telrcv */
-
-/*
- * The will/wont/do/dont state machines are based on Dave Borman's
- * Telnet option processing state machine.
- *
- * These correspond to the following states:
- *	my_state = the last negotiated state
- *	want_state = what I want the state to go to
- *	want_resp = how many requests I have sent
- * All state defaults are negative, and resp defaults to 0.
- *
- * When initiating a request to change state to new_state:
- *
- * if ((want_resp == 0 && new_state == my_state) || want_state == new_state) {
- *	do nothing;
- * } else {
- *	want_state = new_state;
- *	send new_state;
- *	want_resp++;
- * }
- *
- * When receiving new_state:
- *
- * if (want_resp) {
- *	want_resp--;
- *	if (want_resp && (new_state == my_state))
- *		want_resp--;
- * }
- * if ((want_resp == 0) && (new_state != want_state)) {
- *	if (ok_to_switch_to new_state)
- *		want_state = new_state;
- *	else
- *		want_resp++;
- *	send want_state;
- * }
- * my_state = new_state;
- *
- * Note that new_state is implied in these functions by the function itself.
- * will and do imply positive new_state, wont and dont imply negative.
- *
- * Finally, there is one catch.  If we send a negative response to a
- * positive request, my_state will be the positive while want_state will
- * remain negative.  my_state will revert to negative when the negative
- * acknowlegment arrives from the peer.  Thus, my_state generally tells
- * us not only the last negotiated state, but also tells us what the peer
- * wants to be doing as well.  It is important to understand this difference
- * as we may wish to be processing data streams based on our desired state
- * (want_state) or based on what the peer thinks the state is (my_state).
- *
- * This all works fine because if the peer sends a positive request, the data
- * that we receive prior to negative acknowlegment will probably be affected
- * by the positive state, and we can process it as such (if we can; if we
- * can't then it really doesn't matter).  If it is that important, then the
- * peer probably should be buffering until this option state negotiation
- * is complete.
- *
- */
-void
-send_do(int option, int init)
-{
-	if (init) {
-		if ((do_dont_resp[option] == 0 && his_state_is_will(option)) ||
-		    his_want_state_is_will(option))
-			return;
-		/*
-		 * Special case for TELOPT_TM:  We send a DO, but pretend
-		 * that we sent a DONT, so that we can send more DOs if
-		 * we want to.
-		 */
-		if (option == TELOPT_TM)
-			set_his_want_state_wont(option);
-		else
-			set_his_want_state_will(option);
-		do_dont_resp[option]++;
-	}
-	output_data((const char *)doopt, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send do", option));
-}
-
-void
-willoption(int option)
-{
-	int changeok = 0;
-	void (*func)(void) = 0;
-
-	/*
-	 * process input from peer.
-	 */
-
-	DIAG(TD_OPTIONS, printoption("td: recv will", option));
-
-	if (do_dont_resp[option]) {
-		do_dont_resp[option]--;
-		if (do_dont_resp[option] && his_state_is_will(option))
-			do_dont_resp[option]--;
-	}
-	if (do_dont_resp[option] == 0) {
-	    if (his_want_state_is_wont(option)) {
-		switch (option) {
-
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryin(1);
-			set_termbuf();
-			changeok++;
-			break;
-
-		case TELOPT_ECHO:
-			/*
-			 * See comments below for more info.
-			 */
-			not42 = 0;	/* looks like a 4.2 system */
-			break;
-
-		case TELOPT_TM:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			/*
-			 * This telnetd implementation does not really
-			 * support timing marks, it just uses them to
-			 * support the kludge linemode stuff.  If we
-			 * receive a will or wont TM in response to our
-			 * do TM request that may have been sent to
-			 * determine kludge linemode support, process
-			 * it, otherwise TM should get a negative
-			 * response back.
-			 */
-			/*
-			 * Handle the linemode kludge stuff.
-			 * If we are not currently supporting any
-			 * linemode at all, then we assume that this
-			 * is the client telling us to use kludge
-			 * linemode in response to our query.  Set the
-			 * linemode type that is to be supported, note
-			 * that the client wishes to use linemode, and
-			 * eat the will TM as though it never arrived.
-			 */
-			if (lmodetype < KLUDGE_LINEMODE) {
-				lmodetype = KLUDGE_LINEMODE;
-				clientstat(TELOPT_LINEMODE, WILL, 0);
-				send_wont(TELOPT_SGA, 1);
-			} else if (lmodetype == NO_AUTOKLUDGE) {
-				lmodetype = KLUDGE_OK;
-			}
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			/*
-			 * We never respond to a WILL TM, and
-			 * we leave the state WONT.
-			 */
-			return;
-
-		case TELOPT_LFLOW:
-			/*
-			 * If we are going to support flow control
-			 * option, then don't worry peer that we can't
-			 * change the flow control characters.
-			 */
-			slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XON].defset.flag |= SLC_DEFAULT;
-			slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XOFF].defset.flag |= SLC_DEFAULT;
-		case TELOPT_TTYPE:
-		case TELOPT_SGA:
-		case TELOPT_NAWS:
-		case TELOPT_TSPEED:
-		case TELOPT_XDISPLOC:
-		case TELOPT_NEW_ENVIRON:
-		case TELOPT_OLD_ENVIRON:
-			changeok++;
-			break;
-
-#ifdef	LINEMODE
-		case TELOPT_LINEMODE:
-# ifdef	KLUDGELINEMODE
-			/*
-			 * Note client's desire to use linemode.
-			 */
-			lmodetype = REAL_LINEMODE;
-# endif	/* KLUDGELINEMODE */
-			func = doclientstat;
-			changeok++;
-			break;
-#endif	/* LINEMODE */
-
-
-
-		default:
-			break;
-		}
-		if (changeok) {
-			set_his_want_state_will(option);
-			send_do(option, 0);
-		} else {
-			do_dont_resp[option]++;
-			send_dont(option, 0);
-		}
-	    } else {
-		/*
-		 * Option processing that should happen when
-		 * we receive conformation of a change in
-		 * state that we had requested.
-		 */
-		switch (option) {
-		case TELOPT_ECHO:
-			not42 = 0;	/* looks like a 4.2 system */
-			/*
-			 * Egads, he responded "WILL ECHO".  Turn
-			 * it off right now!
-			 */
-			send_dont(option, 1);
-			/*
-			 * "WILL ECHO".  Kludge upon kludge!
-			 * A 4.2 client is now echoing user input at
-			 * the tty.  This is probably undesireable and
-			 * it should be stopped.  The client will
-			 * respond WONT TM to the DO TM that we send to
-			 * check for kludge linemode.  When the WONT TM
-			 * arrives, linemode will be turned off and a
-			 * change propogated to the pty.  This change
-			 * will cause us to process the new pty state
-			 * in localstat(), which will notice that
-			 * linemode is off and send a WILL ECHO
-			 * so that we are properly in character mode and
-			 * all is well.
-			 */
-			break;
-#ifdef	LINEMODE
-		case TELOPT_LINEMODE:
-# ifdef	KLUDGELINEMODE
-			/*
-			 * Note client's desire to use linemode.
-			 */
-			lmodetype = REAL_LINEMODE;
-# endif	/* KLUDGELINEMODE */
-			func = doclientstat;
-			break;
-#endif	/* LINEMODE */
-
-
-		case TELOPT_LFLOW:
-			func = flowstat;
-			break;
-		}
-	    }
-	}
-	set_his_state_will(option);
-	if (func)
-		(*func)();
-}  /* end of willoption */
-
-void
-send_dont(int option, int init)
-{
-	if (init) {
-		if ((do_dont_resp[option] == 0 && his_state_is_wont(option)) ||
-		    his_want_state_is_wont(option))
-			return;
-		set_his_want_state_wont(option);
-		do_dont_resp[option]++;
-	}
-	output_data((const char *)dont, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send dont", option));
-}
-
-void
-wontoption(int option)
-{
-	/*
-	 * Process client input.
-	 */
-
-	DIAG(TD_OPTIONS, printoption("td: recv wont", option));
-
-	if (do_dont_resp[option]) {
-		do_dont_resp[option]--;
-		if (do_dont_resp[option] && his_state_is_wont(option))
-			do_dont_resp[option]--;
-	}
-	if (do_dont_resp[option] == 0) {
-	    if (his_want_state_is_will(option)) {
-		/* it is always ok to change to negative state */
-		switch (option) {
-		case TELOPT_ECHO:
-			not42 = 1; /* doesn't seem to be a 4.2 system */
-			break;
-
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryin(0);
-			set_termbuf();
-			break;
-
-#ifdef	LINEMODE
-		case TELOPT_LINEMODE:
-# ifdef	KLUDGELINEMODE
-			/*
-			 * If real linemode is supported, then client is
-			 * asking to turn linemode off.
-			 */
-			if (lmodetype != REAL_LINEMODE)
-				break;
-			lmodetype = KLUDGE_LINEMODE;
-# endif	/* KLUDGELINEMODE */
-			clientstat(TELOPT_LINEMODE, WONT, 0);
-			break;
-#endif	/* LINEMODE */
-
-		case TELOPT_TM:
-			/*
-			 * If we get a WONT TM, and had sent a DO TM,
-			 * don't respond with a DONT TM, just leave it
-			 * as is.  Short circut the state machine to
-			 * achive this.
-			 */
-			set_his_want_state_wont(TELOPT_TM);
-			return;
-
-		case TELOPT_LFLOW:
-			/*
-			 * If we are not going to support flow control
-			 * option, then let peer know that we can't
-			 * change the flow control characters.
-			 */
-			slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XON].defset.flag |= SLC_CANTCHANGE;
-			slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS;
-			slctab[SLC_XOFF].defset.flag |= SLC_CANTCHANGE;
-			break;
-
-
-		/*
-		 * For options that we might spin waiting for
-		 * sub-negotiation, if the client turns off the
-		 * option rather than responding to the request,
-		 * we have to treat it here as if we got a response
-		 * to the sub-negotiation, (by updating the timers)
-		 * so that we'll break out of the loop.
-		 */
-		case TELOPT_TTYPE:
-			settimer(ttypesubopt);
-			break;
-
-		case TELOPT_TSPEED:
-			settimer(tspeedsubopt);
-			break;
-
-		case TELOPT_XDISPLOC:
-			settimer(xdisplocsubopt);
-			break;
-
-		case TELOPT_OLD_ENVIRON:
-			settimer(oenvironsubopt);
-			break;
-
-		case TELOPT_NEW_ENVIRON:
-			settimer(environsubopt);
-			break;
-
-		default:
-			break;
-		}
-		set_his_want_state_wont(option);
-		if (his_state_is_will(option))
-			send_dont(option, 0);
-	    } else {
-		switch (option) {
-		case TELOPT_TM:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			if (lmodetype < NO_AUTOKLUDGE) {
-				lmodetype = NO_LINEMODE;
-				clientstat(TELOPT_LINEMODE, WONT, 0);
-				send_will(TELOPT_SGA, 1);
-				send_will(TELOPT_ECHO, 1);
-			}
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			break;
-
-		default:
-			break;
-		}
-	    }
-	}
-	set_his_state_wont(option);
-
-}  /* end of wontoption */
-
-void
-send_will(int option, int init)
-{
-	if (init) {
-		if ((will_wont_resp[option] == 0 && my_state_is_will(option))||
-		    my_want_state_is_will(option))
-			return;
-		set_my_want_state_will(option);
-		will_wont_resp[option]++;
-	}
-	output_data((const char *)will, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send will", option));
-}
-
-#if	!defined(LINEMODE) || !defined(KLUDGELINEMODE)
-/*
- * When we get a DONT SGA, we will try once to turn it
- * back on.  If the other side responds DONT SGA, we
- * leave it at that.  This is so that when we talk to
- * clients that understand KLUDGELINEMODE but not LINEMODE,
- * we'll keep them in char-at-a-time mode.
- */
-int turn_on_sga = 0;
-#endif
-
-void
-dooption(int option)
-{
-	int changeok = 0;
-
-	/*
-	 * Process client input.
-	 */
-
-	DIAG(TD_OPTIONS, printoption("td: recv do", option));
-
-	if (will_wont_resp[option]) {
-		will_wont_resp[option]--;
-		if (will_wont_resp[option] && my_state_is_will(option))
-			will_wont_resp[option]--;
-	}
-	if ((will_wont_resp[option] == 0) && (my_want_state_is_wont(option))) {
-		switch (option) {
-		case TELOPT_ECHO:
-#ifdef	LINEMODE
-# ifdef	KLUDGELINEMODE
-			if (lmodetype == NO_LINEMODE)
-# else
-			if (his_state_is_wont(TELOPT_LINEMODE))
-# endif
-#endif
-			{
-				init_termbuf();
-				tty_setecho(1);
-				set_termbuf();
-			}
-			changeok++;
-			break;
-
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryout(1);
-			set_termbuf();
-			changeok++;
-			break;
-
-		case TELOPT_SGA:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			/*
-			 * If kludge linemode is in use, then we must
-			 * process an incoming do SGA for linemode
-			 * purposes.
-			 */
-			if (lmodetype == KLUDGE_LINEMODE) {
-				/*
-				 * Receipt of "do SGA" in kludge
-				 * linemode is the peer asking us to
-				 * turn off linemode.  Make note of
-				 * the request.
-				 */
-				clientstat(TELOPT_LINEMODE, WONT, 0);
-				/*
-				 * If linemode did not get turned off
-				 * then don't tell peer that we did.
-				 * Breaking here forces a wont SGA to
-				 * be returned.
-				 */
-				if (linemode)
-					break;
-			}
-#else
-			turn_on_sga = 0;
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			changeok++;
-			break;
-
-		case TELOPT_STATUS:
-			changeok++;
-			break;
-
-		case TELOPT_TM:
-			/*
-			 * Special case for TM.  We send a WILL, but
-			 * pretend we sent a WONT.
-			 */
-			send_will(option, 0);
-			set_my_want_state_wont(option);
-			set_my_state_wont(option);
-			return;
-
-		case TELOPT_LOGOUT:
-			/*
-			 * When we get a LOGOUT option, respond
-			 * with a WILL LOGOUT, make sure that
-			 * it gets written out to the network,
-			 * and then just go away...
-			 */
-			set_my_want_state_will(TELOPT_LOGOUT);
-			send_will(TELOPT_LOGOUT, 0);
-			set_my_state_will(TELOPT_LOGOUT);
-			(void)netflush();
-			cleanup(0);
-			/* NOT REACHED */
-			break;
-
-		case TELOPT_LINEMODE:
-		case TELOPT_TTYPE:
-		case TELOPT_NAWS:
-		case TELOPT_TSPEED:
-		case TELOPT_LFLOW:
-		case TELOPT_XDISPLOC:
-#ifdef	TELOPT_ENVIRON
-		case TELOPT_NEW_ENVIRON:
-#endif
-		case TELOPT_OLD_ENVIRON:
-		default:
-			break;
-		}
-		if (changeok) {
-			set_my_want_state_will(option);
-			send_will(option, 0);
-		} else {
-			will_wont_resp[option]++;
-			send_wont(option, 0);
-		}
-	}
-	set_my_state_will(option);
-
-}  /* end of dooption */
-
-void
-send_wont(int option, int init)
-{
-	if (init) {
-		if ((will_wont_resp[option] == 0 && my_state_is_wont(option)) ||
-		    my_want_state_is_wont(option))
-			return;
-		set_my_want_state_wont(option);
-		will_wont_resp[option]++;
-	}
-	output_data((const char *)wont, option);
-
-	DIAG(TD_OPTIONS, printoption("td: send wont", option));
-}
-
-void
-dontoption(int option)
-{
-	/*
-	 * Process client input.
-	 */
-
-
-	DIAG(TD_OPTIONS, printoption("td: recv dont", option));
-
-	if (will_wont_resp[option]) {
-		will_wont_resp[option]--;
-		if (will_wont_resp[option] && my_state_is_wont(option))
-			will_wont_resp[option]--;
-	}
-	if ((will_wont_resp[option] == 0) && (my_want_state_is_will(option))) {
-		switch (option) {
-		case TELOPT_BINARY:
-			init_termbuf();
-			tty_binaryout(0);
-			set_termbuf();
-			break;
-
-		case TELOPT_ECHO:	/* we should stop echoing */
-#ifdef	LINEMODE
-# ifdef	KLUDGELINEMODE
-			if ((lmodetype != REAL_LINEMODE) &&
-			    (lmodetype != KLUDGE_LINEMODE))
-# else
-			if (his_state_is_wont(TELOPT_LINEMODE))
-# endif
-#endif
-			{
-				init_termbuf();
-				tty_setecho(0);
-				set_termbuf();
-			}
-			break;
-
-		case TELOPT_SGA:
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			/*
-			 * If kludge linemode is in use, then we
-			 * must process an incoming do SGA for
-			 * linemode purposes.
-			 */
-			if ((lmodetype == KLUDGE_LINEMODE) ||
-			    (lmodetype == KLUDGE_OK)) {
-				/*
-				 * The client is asking us to turn
-				 * linemode on.
-				 */
-				lmodetype = KLUDGE_LINEMODE;
-				clientstat(TELOPT_LINEMODE, WILL, 0);
-				/*
-				 * If we did not turn line mode on,
-				 * then what do we say?  Will SGA?
-				 * This violates design of telnet.
-				 * Gross.  Very Gross.
-				 */
-			}
-			break;
-#else
-			set_my_want_state_wont(option);
-			if (my_state_is_will(option))
-				send_wont(option, 0);
-			set_my_state_wont(option);
-			if (turn_on_sga ^= 1)
-				send_will(option, 1);
-			return;
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-
-		default:
-			break;
-		}
-
-		set_my_want_state_wont(option);
-		if (my_state_is_will(option))
-			send_wont(option, 0);
-	}
-	set_my_state_wont(option);
-
-}  /* end of dontoption */
-
-#ifdef	ENV_HACK
-int env_ovar = -1;
-int env_ovalue = -1;
-#else	/* ENV_HACK */
-# define env_ovar OLD_ENV_VAR
-# define env_ovalue OLD_ENV_VALUE
-#endif	/* ENV_HACK */
-
-/*
- * suboption()
- *
- *	Look at the sub-option buffer, and try to be helpful to the other
- * side.
- *
- *	Currently we recognize:
- *
- *	Terminal type is
- *	Linemode
- *	Window size
- *	Terminal speed
- */
-void
-suboption(void)
-{
-    int subchar;
-
-    DIAG(TD_OPTIONS, {netflush(); printsub('<', subpointer, SB_LEN()+2);});
-
-    subchar = SB_GET();
-    switch (subchar) {
-    case TELOPT_TSPEED: {
-	int xspeed, rspeed;
-
-	if (his_state_is_wont(TELOPT_TSPEED))	/* Ignore if option disabled */
-		break;
-
-	settimer(tspeedsubopt);
-
-	if (SB_EOF() || SB_GET() != TELQUAL_IS)
-		return;
-
-	xspeed = atoi((char *)subpointer);
-
-	while (SB_GET() != ',' && !SB_EOF());
-	if (SB_EOF())
-		return;
-
-	rspeed = atoi((char *)subpointer);
-	clientstat(TELOPT_TSPEED, xspeed, rspeed);
-
-	break;
-
-    }  /* end of case TELOPT_TSPEED */
-
-    case TELOPT_TTYPE: {		/* Yaaaay! */
-	static char terminalname[41];
-
-	if (his_state_is_wont(TELOPT_TTYPE))	/* Ignore if option disabled */
-		break;
-	settimer(ttypesubopt);
-
-	if (SB_EOF() || SB_GET() != TELQUAL_IS) {
-	    return;		/* ??? XXX but, this is the most robust */
-	}
-
-	terminaltype = terminalname;
-
-	while ((terminaltype < (terminalname + sizeof terminalname-1)) &&
-								    !SB_EOF()) {
-	    int c;
-
-	    c = SB_GET();
-	    if (isupper(c)) {
-		c = tolower(c);
-	    }
-	    *terminaltype++ = c;    /* accumulate name */
-	}
-	*terminaltype = 0;
-	terminaltype = terminalname;
-	break;
-    }  /* end of case TELOPT_TTYPE */
-
-    case TELOPT_NAWS: {
-	int xwinsize, ywinsize;
-
-	if (his_state_is_wont(TELOPT_NAWS))	/* Ignore if option disabled */
-		break;
-
-	if (SB_EOF())
-		return;
-	xwinsize = SB_GET() << 8;
-	if (SB_EOF())
-		return;
-	xwinsize |= SB_GET();
-	if (SB_EOF())
-		return;
-	ywinsize = SB_GET() << 8;
-	if (SB_EOF())
-		return;
-	ywinsize |= SB_GET();
-	clientstat(TELOPT_NAWS, xwinsize, ywinsize);
-
-	break;
-
-    }  /* end of case TELOPT_NAWS */
-
-#ifdef	LINEMODE
-    case TELOPT_LINEMODE: {
-	int request;
-
-	if (his_state_is_wont(TELOPT_LINEMODE))	/* Ignore if option disabled */
-		break;
-	/*
-	 * Process linemode suboptions.
-	 */
-	if (SB_EOF())
-	    break;		/* garbage was sent */
-	request = SB_GET();	/* get will/wont */
-
-	if (SB_EOF())
-	    break;		/* another garbage check */
-
-	if (request == LM_SLC) {  /* SLC is not preceeded by WILL or WONT */
-		/*
-		 * Process suboption buffer of slc's
-		 */
-		start_slc(1);
-		do_opt_slc(subpointer, subend - subpointer);
-		(void) end_slc(0);
-		break;
-	} else if (request == LM_MODE) {
-		if (SB_EOF())
-		    return;
-		useeditmode = SB_GET();  /* get mode flag */
-		clientstat(LM_MODE, 0, 0);
-		break;
-	}
-
-	if (SB_EOF())
-	    break;
-	switch (SB_GET()) {  /* what suboption? */
-	case LM_FORWARDMASK:
-		/*
-		 * According to spec, only server can send request for
-		 * forwardmask, and client can only return a positive response.
-		 * So don't worry about it.
-		 */
-
-	default:
-		break;
-	}
-	break;
-    }  /* end of case TELOPT_LINEMODE */
-#endif
-    case TELOPT_STATUS: {
-	int mode;
-
-	if (SB_EOF())
-	    break;
-	mode = SB_GET();
-	switch (mode) {
-	case TELQUAL_SEND:
-	    if (my_state_is_will(TELOPT_STATUS))
-		send_status();
-	    break;
-
-	case TELQUAL_IS:
-	    break;
-
-	default:
-	    break;
-	}
-	break;
-    }  /* end of case TELOPT_STATUS */
-
-    case TELOPT_XDISPLOC: {
-	if (SB_EOF() || SB_GET() != TELQUAL_IS)
-		return;
-	settimer(xdisplocsubopt);
-	subpointer[SB_LEN()] = '\0';
-	(void)setenv("DISPLAY", (char *)subpointer, 1);
-	break;
-    }  /* end of case TELOPT_XDISPLOC */
-
-#ifdef	TELOPT_NEW_ENVIRON
-    case TELOPT_NEW_ENVIRON:
-#endif
-    case TELOPT_OLD_ENVIRON: {
-	int c;
-	char *cp, *varp, *valp;
-
-	if (SB_EOF())
-		return;
-	c = SB_GET();
-	if (c == TELQUAL_IS) {
-		if (subchar == TELOPT_OLD_ENVIRON)
-			settimer(oenvironsubopt);
-		else
-			settimer(environsubopt);
-	} else if (c != TELQUAL_INFO) {
-		return;
-	}
-
-#ifdef	TELOPT_NEW_ENVIRON
-	if (subchar == TELOPT_NEW_ENVIRON) {
-	    while (!SB_EOF()) {
-		c = SB_GET();
-		if ((c == NEW_ENV_VAR) || (c == ENV_USERVAR))
-			break;
-	    }
-	} else
-#endif
-	{
-#ifdef	ENV_HACK
-	    /*
-	     * We only want to do this if we haven't already decided
-	     * whether or not the other side has its VALUE and VAR
-	     * reversed.
-	     */
-	    if (env_ovar < 0) {
-		int last = -1;		/* invalid value */
-		int empty = 0;
-		int got_var = 0, got_value = 0, got_uservar = 0;
-
-		/*
-		 * The other side might have its VALUE and VAR values
-		 * reversed.  To be interoperable, we need to determine
-		 * which way it is.  If the first recognized character
-		 * is a VAR or VALUE, then that will tell us what
-		 * type of client it is.  If the fist recognized
-		 * character is a USERVAR, then we continue scanning
-		 * the suboption looking for two consecutive
-		 * VAR or VALUE fields.  We should not get two
-		 * consecutive VALUE fields, so finding two
-		 * consecutive VALUE or VAR fields will tell us
-		 * what the client is.
-		 */
-		SB_SAVE();
-		while (!SB_EOF()) {
-			c = SB_GET();
-			switch(c) {
-			case OLD_ENV_VAR:
-				if (last < 0 || last == OLD_ENV_VAR
-				    || (empty && (last == OLD_ENV_VALUE)))
-					goto env_ovar_ok;
-				got_var++;
-				last = OLD_ENV_VAR;
-				break;
-			case OLD_ENV_VALUE:
-				if (last < 0 || last == OLD_ENV_VALUE
-				    || (empty && (last == OLD_ENV_VAR)))
-					goto env_ovar_wrong;
-				got_value++;
-				last = OLD_ENV_VALUE;
-				break;
-			case ENV_USERVAR:
-				/* count strings of USERVAR as one */
-				if (last != ENV_USERVAR)
-					got_uservar++;
-				if (empty) {
-					if (last == OLD_ENV_VALUE)
-						goto env_ovar_ok;
-					if (last == OLD_ENV_VAR)
-						goto env_ovar_wrong;
-				}
-				last = ENV_USERVAR;
-				break;
-			case ENV_ESC:
-				if (!SB_EOF())
-					c = SB_GET();
-				/* FALLTHROUGH */
-			default:
-				empty = 0;
-				continue;
-			}
-			empty = 1;
-		}
-		if (empty) {
-			if (last == OLD_ENV_VALUE)
-				goto env_ovar_ok;
-			if (last == OLD_ENV_VAR)
-				goto env_ovar_wrong;
-		}
-		/*
-		 * Ok, the first thing was a USERVAR, and there
-		 * are not two consecutive VAR or VALUE commands,
-		 * and none of the VAR or VALUE commands are empty.
-		 * If the client has sent us a well-formed option,
-		 * then the number of VALUEs received should always
-		 * be less than or equal to the number of VARs and
-		 * USERVARs received.
-		 *
-		 * If we got exactly as many VALUEs as VARs and
-		 * USERVARs, the client has the same definitions.
-		 *
-		 * If we got exactly as many VARs as VALUEs and
-		 * USERVARS, the client has reversed definitions.
-		 */
-		if (got_uservar + got_var == got_value) {
-	    env_ovar_ok:
-			env_ovar = OLD_ENV_VAR;
-			env_ovalue = OLD_ENV_VALUE;
-		} else if (got_uservar + got_value == got_var) {
-	    env_ovar_wrong:
-			env_ovar = OLD_ENV_VALUE;
-			env_ovalue = OLD_ENV_VAR;
-			DIAG(TD_OPTIONS,
-			    output_data("ENVIRON VALUE and VAR are reversed!\r\n"));
-
-		}
-	    }
-	    SB_RESTORE();
-#endif
-
-	    while (!SB_EOF()) {
-		c = SB_GET();
-		if ((c == env_ovar) || (c == ENV_USERVAR))
-			break;
-	    }
-	}
-
-	if (SB_EOF())
-		return;
-
-	cp = varp = (char *)subpointer;
-	valp = 0;
-
-	while (!SB_EOF()) {
-		c = SB_GET();
-		if (subchar == TELOPT_OLD_ENVIRON) {
-			if (c == env_ovar)
-				c = NEW_ENV_VAR;
-			else if (c == env_ovalue)
-				c = NEW_ENV_VALUE;
-		}
-		switch (c) {
-
-		case NEW_ENV_VALUE:
-			*cp = '\0';
-			cp = valp = (char *)subpointer;
-			break;
-
-		case NEW_ENV_VAR:
-		case ENV_USERVAR:
-			*cp = '\0';
-			if (valp)
-				(void)setenv(varp, valp, 1);
-			else
-				unsetenv(varp);
-			cp = varp = (char *)subpointer;
-			valp = 0;
-			break;
-
-		case ENV_ESC:
-			if (SB_EOF())
-				break;
-			c = SB_GET();
-			/* FALLTHROUGH */
-		default:
-			*cp++ = c;
-			break;
-		}
-	}
-	*cp = '\0';
-	if (valp)
-		(void)setenv(varp, valp, 1);
-	else
-		unsetenv(varp);
-	break;
-    }  /* end of case TELOPT_NEW_ENVIRON */
-
-    default:
-	break;
-    }  /* end of switch */
-
-}  /* end of suboption */
-
-static void
-doclientstat(void)
-{
-	clientstat(TELOPT_LINEMODE, WILL, 0);
-}
-
-#define	ADD(c)	 *ncp++ = c
-#define	ADD_DATA(c) { *ncp++ = c; if (c == SE || c == IAC) *ncp++ = c; }
-void
-send_status(void)
-{
-	unsigned char statusbuf[256];
-	unsigned char *ncp;
-	unsigned char i;
-
-	ncp = statusbuf;
-
-	netflush();	/* get rid of anything waiting to go out */
-
-	ADD(IAC);
-	ADD(SB);
-	ADD(TELOPT_STATUS);
-	ADD(TELQUAL_IS);
-
-	/*
-	 * We check the want_state rather than the current state,
-	 * because if we received a DO/WILL for an option that we
-	 * don't support, and the other side didn't send a DONT/WONT
-	 * in response to our WONT/DONT, then the "state" will be
-	 * WILL/DO, and the "want_state" will be WONT/DONT.  We
-	 * need to go by the latter.
-	 */
-	for (i = 0; i < (unsigned char)NTELOPTS; i++) {
-		if (my_want_state_is_will(i)) {
-			ADD(WILL);
-			ADD_DATA(i);
-			if (i == IAC)
-				ADD(IAC);
-		}
-		if (his_want_state_is_will(i)) {
-			ADD(DO);
-			ADD_DATA(i);
-			if (i == IAC)
-				ADD(IAC);
-		}
-	}
-
-	if (his_want_state_is_will(TELOPT_LFLOW)) {
-		ADD(SB);
-		ADD(TELOPT_LFLOW);
-		if (flowmode) {
-			ADD(LFLOW_ON);
-		} else {
-			ADD(LFLOW_OFF);
-		}
-		ADD(SE);
-
-		if (restartany >= 0) {
-			ADD(SB);
-			ADD(TELOPT_LFLOW);
-			if (restartany) {
-				ADD(LFLOW_RESTART_ANY);
-			} else {
-				ADD(LFLOW_RESTART_XON);
-			}
-			ADD(SE);
-		}
-	}
-
-#ifdef	LINEMODE
-	if (his_want_state_is_will(TELOPT_LINEMODE)) {
-		unsigned char *cp, *cpe;
-		int len;
-
-		ADD(SB);
-		ADD(TELOPT_LINEMODE);
-		ADD(LM_MODE);
-		ADD_DATA(editmode);
-		ADD(SE);
-
-		ADD(SB);
-		ADD(TELOPT_LINEMODE);
-		ADD(LM_SLC);
-		start_slc(0);
-		send_slc();
-		len = end_slc(&cp);
-		for (cpe = cp + len; cp < cpe; cp++)
-			ADD_DATA(*cp);
-		ADD(SE);
-	}
-#endif	/* LINEMODE */
-
-	ADD(IAC);
-	ADD(SE);
-
-	output_datalen(statusbuf, ncp - statusbuf);
-	netflush();	/* Send it on its way */
-
-	DIAG(TD_OPTIONS,
-		{printsub('>', statusbuf, ncp - statusbuf); netflush();});
-}
-
-/*
- * This function appends data to nfrontp and advances nfrontp.
- * Returns the number of characters written altogether (the
- * buffer may have been flushed in the process).
- */
-
-int
-output_data(const char *format, ...)
-{
-	va_list args;
-	int len;
-	char *buf;
-
-	va_start(args, format);
-	if ((len = vasprintf(&buf, format, args)) == -1)
-		return -1;
-	output_datalen(buf, len);
-	va_end(args);
-	free(buf);
-	return (len);
-}
-
-void
-output_datalen(const char *buf, int len)
-{
-	int remaining, copied;
-	
-	remaining = BUFSIZ - (nfrontp - netobuf);
-	while (len > 0) {
-		/* Free up enough space if the room is too low*/
-		if ((len > BUFSIZ ? BUFSIZ : len) > remaining) {
-			netflush();
-			remaining = BUFSIZ - (nfrontp - netobuf);
-		}
-
-		/* Copy out as much as will fit */
-		copied = remaining > len ? len : remaining;
-		memmove(nfrontp, buf, copied);
-		nfrontp += copied;
-		len -= copied;
-		remaining -= copied;
-		buf += copied;
-	}
-	return;
-}
diff --git a/libexec/telnetd/sys_term.c b/libexec/telnetd/sys_term.c
deleted file mode 100644
index e0525d631292..000000000000
--- a/libexec/telnetd/sys_term.c
+++ /dev/null
@@ -1,1192 +0,0 @@
- /*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)sys_term.c	8.4+1 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/tty.h>
-#include <libutil.h>
-#include <stdlib.h>
-#include <utmp.h>
-
-#include "telnetd.h"
-#include "pathnames.h"
-
-
-int cleanopen(char *);
-void scrub_env(void);
-
-struct	utmp wtmp;
-
-#ifdef _PATH_WTMP
-char    wtmpf[] = _PATH_WTMP;
-#else
-char	wtmpf[]	= "/var/log/wtmp";
-#endif
-#ifdef _PATH_UTMP
-char    utmpf[] = _PATH_UTMP;
-#else
-char	utmpf[] = "/var/run/utmp";
-#endif
-
-char	*envinit[3];
-extern char **environ;
-
-#define SCPYN(a, b)	(void) strncpy(a, b, sizeof(a))
-#define SCMPN(a, b)	strncmp(a, b, sizeof(a))
-
-#ifdef	t_erase
-#undef	t_erase
-#undef	t_kill
-#undef	t_intrc
-#undef	t_quitc
-#undef	t_startc
-#undef	t_stopc
-#undef	t_eofc
-#undef	t_brkc
-#undef	t_suspc
-#undef	t_dsuspc
-#undef	t_rprntc
-#undef	t_flushc
-#undef	t_werasc
-#undef	t_lnextc
-#endif
-
-#ifndef	USE_TERMIO
-struct termbuf {
-	struct sgttyb sg;
-	struct tchars tc;
-	struct ltchars ltc;
-	int state;
-	int lflags;
-} termbuf, termbuf2;
-# define	cfsetospeed(tp, val)	(tp)->sg.sg_ospeed = (val)
-# define	cfsetispeed(tp, val)	(tp)->sg.sg_ispeed = (val)
-# define	cfgetospeed(tp)		(tp)->sg.sg_ospeed
-# define	cfgetispeed(tp)		(tp)->sg.sg_ispeed
-#else	/* USE_TERMIO */
-# ifndef	TCSANOW
-#  ifdef TCSETS
-#   define	TCSANOW		TCSETS
-#   define	TCSADRAIN	TCSETSW
-#   define	tcgetattr(f, t)	ioctl(f, TCGETS, (char *)t)
-#  else
-#   ifdef TCSETA
-#    define	TCSANOW		TCSETA
-#    define	TCSADRAIN	TCSETAW
-#    define	tcgetattr(f, t)	ioctl(f, TCGETA, (char *)t)
-#   else
-#    define	TCSANOW		TIOCSETA
-#    define	TCSADRAIN	TIOCSETAW
-#    define	tcgetattr(f, t)	ioctl(f, TIOCGETA, (char *)t)
-#   endif
-#  endif
-#  define	tcsetattr(f, a, t)	ioctl(f, a, t)
-#  define	cfsetospeed(tp, val)	(tp)->c_cflag &= ~CBAUD; \
-					(tp)->c_cflag |= (val)
-#  define	cfgetospeed(tp)		((tp)->c_cflag & CBAUD)
-#  ifdef CIBAUD
-#   define	cfsetispeed(tp, val)	(tp)->c_cflag &= ~CIBAUD; \
-					(tp)->c_cflag |= ((val)<<IBSHIFT)
-#   define	cfgetispeed(tp)		(((tp)->c_cflag & CIBAUD)>>IBSHIFT)
-#  else
-#   define	cfsetispeed(tp, val)	(tp)->c_cflag &= ~CBAUD; \
-					(tp)->c_cflag |= (val)
-#   define	cfgetispeed(tp)		((tp)->c_cflag & CBAUD)
-#  endif
-# endif /* TCSANOW */
-struct termios termbuf, termbuf2;	/* pty control structure */
-#endif	/* USE_TERMIO */
-
-#include <sys/types.h>
-#include <libutil.h>
-
-int cleanopen(char *);
-void scrub_env(void);
-static char **addarg(char **, const char *);
-
-/*
- * init_termbuf()
- * copy_termbuf(cp)
- * set_termbuf()
- *
- * These three routines are used to get and set the "termbuf" structure
- * to and from the kernel.  init_termbuf() gets the current settings.
- * copy_termbuf() hands in a new "termbuf" to write to the kernel, and
- * set_termbuf() writes the structure into the kernel.
- */
-
-void
-init_termbuf(void)
-{
-#ifndef	USE_TERMIO
-	(void) ioctl(pty, TIOCGETP, (char *)&termbuf.sg);
-	(void) ioctl(pty, TIOCGETC, (char *)&termbuf.tc);
-	(void) ioctl(pty, TIOCGLTC, (char *)&termbuf.ltc);
-# ifdef	TIOCGSTATE
-	(void) ioctl(pty, TIOCGSTATE, (char *)&termbuf.state);
-# endif
-#else
-	(void) tcgetattr(pty, &termbuf);
-#endif
-	termbuf2 = termbuf;
-}
-
-#if	defined(LINEMODE) && defined(TIOCPKT_IOCTL)
-void
-copy_termbuf(char *cp, size_t len)
-{
-	if (len > sizeof(termbuf))
-		len = sizeof(termbuf);
-	memmove((char *)&termbuf, cp, len);
-	termbuf2 = termbuf;
-}
-#endif	/* defined(LINEMODE) && defined(TIOCPKT_IOCTL) */
-
-void
-set_termbuf(void)
-{
-	/*
-	 * Only make the necessary changes.
-	 */
-#ifndef	USE_TERMIO
-	if (memcmp((char *)&termbuf.sg, (char *)&termbuf2.sg,
-							sizeof(termbuf.sg)))
-		(void) ioctl(pty, TIOCSETN, (char *)&termbuf.sg);
-	if (memcmp((char *)&termbuf.tc, (char *)&termbuf2.tc,
-							sizeof(termbuf.tc)))
-		(void) ioctl(pty, TIOCSETC, (char *)&termbuf.tc);
-	if (memcmp((char *)&termbuf.ltc, (char *)&termbuf2.ltc,
-							sizeof(termbuf.ltc)))
-		(void) ioctl(pty, TIOCSLTC, (char *)&termbuf.ltc);
-	if (termbuf.lflags != termbuf2.lflags)
-		(void) ioctl(pty, TIOCLSET, (char *)&termbuf.lflags);
-#else	/* USE_TERMIO */
-	if (memcmp((char *)&termbuf, (char *)&termbuf2, sizeof(termbuf)))
-		(void) tcsetattr(pty, TCSANOW, &termbuf);
-#endif	/* USE_TERMIO */
-}
-
-
-/*
- * spcset(func, valp, valpp)
- *
- * This function takes various special characters (func), and
- * sets *valp to the current value of that character, and
- * *valpp to point to where in the "termbuf" structure that
- * value is kept.
- *
- * It returns the SLC_ level of support for this function.
- */
-
-#ifndef	USE_TERMIO
-int
-spcset(int func, cc_t *valp, cc_t **valpp)
-{
-	switch(func) {
-	case SLC_EOF:
-		*valp = termbuf.tc.t_eofc;
-		*valpp = (cc_t *)&termbuf.tc.t_eofc;
-		return(SLC_VARIABLE);
-	case SLC_EC:
-		*valp = termbuf.sg.sg_erase;
-		*valpp = (cc_t *)&termbuf.sg.sg_erase;
-		return(SLC_VARIABLE);
-	case SLC_EL:
-		*valp = termbuf.sg.sg_kill;
-		*valpp = (cc_t *)&termbuf.sg.sg_kill;
-		return(SLC_VARIABLE);
-	case SLC_IP:
-		*valp = termbuf.tc.t_intrc;
-		*valpp = (cc_t *)&termbuf.tc.t_intrc;
-		return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_ABORT:
-		*valp = termbuf.tc.t_quitc;
-		*valpp = (cc_t *)&termbuf.tc.t_quitc;
-		return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_XON:
-		*valp = termbuf.tc.t_startc;
-		*valpp = (cc_t *)&termbuf.tc.t_startc;
-		return(SLC_VARIABLE);
-	case SLC_XOFF:
-		*valp = termbuf.tc.t_stopc;
-		*valpp = (cc_t *)&termbuf.tc.t_stopc;
-		return(SLC_VARIABLE);
-	case SLC_AO:
-		*valp = termbuf.ltc.t_flushc;
-		*valpp = (cc_t *)&termbuf.ltc.t_flushc;
-		return(SLC_VARIABLE);
-	case SLC_SUSP:
-		*valp = termbuf.ltc.t_suspc;
-		*valpp = (cc_t *)&termbuf.ltc.t_suspc;
-		return(SLC_VARIABLE);
-	case SLC_EW:
-		*valp = termbuf.ltc.t_werasc;
-		*valpp = (cc_t *)&termbuf.ltc.t_werasc;
-		return(SLC_VARIABLE);
-	case SLC_RP:
-		*valp = termbuf.ltc.t_rprntc;
-		*valpp = (cc_t *)&termbuf.ltc.t_rprntc;
-		return(SLC_VARIABLE);
-	case SLC_LNEXT:
-		*valp = termbuf.ltc.t_lnextc;
-		*valpp = (cc_t *)&termbuf.ltc.t_lnextc;
-		return(SLC_VARIABLE);
-	case SLC_FORW1:
-		*valp = termbuf.tc.t_brkc;
-		*valpp = (cc_t *)&termbuf.ltc.t_lnextc;
-		return(SLC_VARIABLE);
-	case SLC_BRK:
-	case SLC_SYNCH:
-	case SLC_AYT:
-	case SLC_EOR:
-		*valp = (cc_t)0;
-		*valpp = (cc_t *)0;
-		return(SLC_DEFAULT);
-	default:
-		*valp = (cc_t)0;
-		*valpp = (cc_t *)0;
-		return(SLC_NOSUPPORT);
-	}
-}
-
-#else	/* USE_TERMIO */
-
-
-#define	setval(a, b)	*valp = termbuf.c_cc[a]; \
-			*valpp = &termbuf.c_cc[a]; \
-			return(b);
-#define	defval(a) *valp = ((cc_t)a); *valpp = (cc_t *)0; return(SLC_DEFAULT);
-
-int
-spcset(int func, cc_t *valp, cc_t **valpp)
-{
-	switch(func) {
-	case SLC_EOF:
-		setval(VEOF, SLC_VARIABLE);
-	case SLC_EC:
-		setval(VERASE, SLC_VARIABLE);
-	case SLC_EL:
-		setval(VKILL, SLC_VARIABLE);
-	case SLC_IP:
-		setval(VINTR, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_ABORT:
-		setval(VQUIT, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT);
-	case SLC_XON:
-#ifdef	VSTART
-		setval(VSTART, SLC_VARIABLE);
-#else
-		defval(0x13);
-#endif
-	case SLC_XOFF:
-#ifdef	VSTOP
-		setval(VSTOP, SLC_VARIABLE);
-#else
-		defval(0x11);
-#endif
-	case SLC_EW:
-#ifdef	VWERASE
-		setval(VWERASE, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-	case SLC_RP:
-#ifdef	VREPRINT
-		setval(VREPRINT, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-	case SLC_LNEXT:
-#ifdef	VLNEXT
-		setval(VLNEXT, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-	case SLC_AO:
-#if	!defined(VDISCARD) && defined(VFLUSHO)
-# define VDISCARD VFLUSHO
-#endif
-#ifdef	VDISCARD
-		setval(VDISCARD, SLC_VARIABLE|SLC_FLUSHOUT);
-#else
-		defval(0);
-#endif
-	case SLC_SUSP:
-#ifdef	VSUSP
-		setval(VSUSP, SLC_VARIABLE|SLC_FLUSHIN);
-#else
-		defval(0);
-#endif
-#ifdef	VEOL
-	case SLC_FORW1:
-		setval(VEOL, SLC_VARIABLE);
-#endif
-#ifdef	VEOL2
-	case SLC_FORW2:
-		setval(VEOL2, SLC_VARIABLE);
-#endif
-	case SLC_AYT:
-#ifdef	VSTATUS
-		setval(VSTATUS, SLC_VARIABLE);
-#else
-		defval(0);
-#endif
-
-	case SLC_BRK:
-	case SLC_SYNCH:
-	case SLC_EOR:
-		defval(0);
-
-	default:
-		*valp = 0;
-		*valpp = 0;
-		return(SLC_NOSUPPORT);
-	}
-}
-#endif	/* USE_TERMIO */
-
-/*
- * getpty()
- *
- * Allocate a pty.  As a side effect, the external character
- * array "line" contains the name of the slave side.
- *
- * Returns the file descriptor of the opened pty.
- */
-char alpha[] = "0123456789abcdefghijklmnopqrstuv";
-char line[16];
-
-int
-getpty(int *ptynum __unused)
-{
-	int p;
-	const char *cp;
-	char *p1, *p2;
-	int i;
-
-	(void) strcpy(line, _PATH_DEV);
-	(void) strcat(line, "ptyXX");
-	p1 = &line[8];
-	p2 = &line[9];
-
-	for (cp = "pqrsPQRS"; *cp; cp++) {
-		struct stat stb;
-
-		*p1 = *cp;
-		*p2 = '0';
-		/*
-		 * This stat() check is just to keep us from
-		 * looping through all 256 combinations if there
-		 * aren't that many ptys available.
-		 */
-		if (stat(line, &stb) < 0)
-			break;
-		for (i = 0; i < 32; i++) {
-			*p2 = alpha[i];
-			p = open(line, 2);
-			if (p > 0) {
-				line[5] = 't';
-				chown(line, 0, 0);
-				chmod(line, 0600);
-					return(p);
-			}
-		}
-	}
-	return(-1);
-}
-
-#ifdef	LINEMODE
-/*
- * tty_flowmode()	Find out if flow control is enabled or disabled.
- * tty_linemode()	Find out if linemode (external processing) is enabled.
- * tty_setlinemod(on)	Turn on/off linemode.
- * tty_isecho()		Find out if echoing is turned on.
- * tty_setecho(on)	Enable/disable character echoing.
- * tty_israw()		Find out if terminal is in RAW mode.
- * tty_binaryin(on)	Turn on/off BINARY on input.
- * tty_binaryout(on)	Turn on/off BINARY on output.
- * tty_isediting()	Find out if line editing is enabled.
- * tty_istrapsig()	Find out if signal trapping is enabled.
- * tty_setedit(on)	Turn on/off line editing.
- * tty_setsig(on)	Turn on/off signal trapping.
- * tty_issofttab()	Find out if tab expansion is enabled.
- * tty_setsofttab(on)	Turn on/off soft tab expansion.
- * tty_islitecho()	Find out if typed control chars are echoed literally
- * tty_setlitecho()	Turn on/off literal echo of control chars
- * tty_tspeed(val)	Set transmit speed to val.
- * tty_rspeed(val)	Set receive speed to val.
- */
-
-
-int
-tty_linemode(void)
-{
-#ifndef	USE_TERMIO
-	return(termbuf.state & TS_EXTPROC);
-#else
-	return(termbuf.c_lflag & EXTPROC);
-#endif
-}
-
-void
-tty_setlinemode(int on)
-{
-#ifdef	TIOCEXT
-	set_termbuf();
-	(void) ioctl(pty, TIOCEXT, (char *)&on);
-	init_termbuf();
-#else	/* !TIOCEXT */
-# ifdef	EXTPROC
-	if (on)
-		termbuf.c_lflag |= EXTPROC;
-	else
-		termbuf.c_lflag &= ~EXTPROC;
-# endif
-#endif	/* TIOCEXT */
-}
-#endif	/* LINEMODE */
-
-int
-tty_isecho(void)
-{
-#ifndef USE_TERMIO
-	return (termbuf.sg.sg_flags & ECHO);
-#else
-	return (termbuf.c_lflag & ECHO);
-#endif
-}
-
-int
-tty_flowmode(void)
-{
-#ifndef USE_TERMIO
-	return(((termbuf.tc.t_startc) > 0 && (termbuf.tc.t_stopc) > 0) ? 1 : 0);
-#else
-	return((termbuf.c_iflag & IXON) ? 1 : 0);
-#endif
-}
-
-int
-tty_restartany(void)
-{
-#ifndef USE_TERMIO
-# ifdef	DECCTQ
-	return((termbuf.lflags & DECCTQ) ? 0 : 1);
-# else
-	return(-1);
-# endif
-#else
-	return((termbuf.c_iflag & IXANY) ? 1 : 0);
-#endif
-}
-
-void
-tty_setecho(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags |= ECHO|CRMOD;
-	else
-		termbuf.sg.sg_flags &= ~(ECHO|CRMOD);
-#else
-	if (on)
-		termbuf.c_lflag |= ECHO;
-	else
-		termbuf.c_lflag &= ~ECHO;
-#endif
-}
-
-int
-tty_israw(void)
-{
-#ifndef USE_TERMIO
-	return(termbuf.sg.sg_flags & RAW);
-#else
-	return(!(termbuf.c_lflag & ICANON));
-#endif
-}
-
-
-void
-tty_binaryin(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.lflags |= LPASS8;
-	else
-		termbuf.lflags &= ~LPASS8;
-#else
-	if (on) {
-		termbuf.c_iflag &= ~ISTRIP;
-	} else {
-		termbuf.c_iflag |= ISTRIP;
-	}
-#endif
-}
-
-void
-tty_binaryout(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.lflags |= LLITOUT;
-	else
-		termbuf.lflags &= ~LLITOUT;
-#else
-	if (on) {
-		termbuf.c_cflag &= ~(CSIZE|PARENB);
-		termbuf.c_cflag |= CS8;
-		termbuf.c_oflag &= ~OPOST;
-	} else {
-		termbuf.c_cflag &= ~CSIZE;
-		termbuf.c_cflag |= CS7|PARENB;
-		termbuf.c_oflag |= OPOST;
-	}
-#endif
-}
-
-int
-tty_isbinaryin(void)
-{
-#ifndef	USE_TERMIO
-	return(termbuf.lflags & LPASS8);
-#else
-	return(!(termbuf.c_iflag & ISTRIP));
-#endif
-}
-
-int
-tty_isbinaryout(void)
-{
-#ifndef	USE_TERMIO
-	return(termbuf.lflags & LLITOUT);
-#else
-	return(!(termbuf.c_oflag&OPOST));
-#endif
-}
-
-#ifdef	LINEMODE
-int
-tty_isediting(void)
-{
-#ifndef USE_TERMIO
-	return(!(termbuf.sg.sg_flags & (CBREAK|RAW)));
-#else
-	return(termbuf.c_lflag & ICANON);
-#endif
-}
-
-int
-tty_istrapsig(void)
-{
-#ifndef USE_TERMIO
-	return(!(termbuf.sg.sg_flags&RAW));
-#else
-	return(termbuf.c_lflag & ISIG);
-#endif
-}
-
-void
-tty_setedit(int on)
-{
-#ifndef USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags &= ~CBREAK;
-	else
-		termbuf.sg.sg_flags |= CBREAK;
-#else
-	if (on)
-		termbuf.c_lflag |= ICANON;
-	else
-		termbuf.c_lflag &= ~ICANON;
-#endif
-}
-
-void
-tty_setsig(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		;
-#else
-	if (on)
-		termbuf.c_lflag |= ISIG;
-	else
-		termbuf.c_lflag &= ~ISIG;
-#endif
-}
-#endif	/* LINEMODE */
-
-int
-tty_issofttab(void)
-{
-#ifndef	USE_TERMIO
-	return (termbuf.sg.sg_flags & XTABS);
-#else
-# ifdef	OXTABS
-	return (termbuf.c_oflag & OXTABS);
-# endif
-# ifdef	TABDLY
-	return ((termbuf.c_oflag & TABDLY) == TAB3);
-# endif
-#endif
-}
-
-void
-tty_setsofttab(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.sg.sg_flags |= XTABS;
-	else
-		termbuf.sg.sg_flags &= ~XTABS;
-#else
-	if (on) {
-# ifdef	OXTABS
-		termbuf.c_oflag |= OXTABS;
-# endif
-# ifdef	TABDLY
-		termbuf.c_oflag &= ~TABDLY;
-		termbuf.c_oflag |= TAB3;
-# endif
-	} else {
-# ifdef	OXTABS
-		termbuf.c_oflag &= ~OXTABS;
-# endif
-# ifdef	TABDLY
-		termbuf.c_oflag &= ~TABDLY;
-		termbuf.c_oflag |= TAB0;
-# endif
-	}
-#endif
-}
-
-int
-tty_islitecho(void)
-{
-#ifndef	USE_TERMIO
-	return (!(termbuf.lflags & LCTLECH));
-#else
-# ifdef	ECHOCTL
-	return (!(termbuf.c_lflag & ECHOCTL));
-# endif
-# ifdef	TCTLECH
-	return (!(termbuf.c_lflag & TCTLECH));
-# endif
-# if	!defined(ECHOCTL) && !defined(TCTLECH)
-	return (0);	/* assumes ctl chars are echoed '^x' */
-# endif
-#endif
-}
-
-void
-tty_setlitecho(int on)
-{
-#ifndef	USE_TERMIO
-	if (on)
-		termbuf.lflags &= ~LCTLECH;
-	else
-		termbuf.lflags |= LCTLECH;
-#else
-# ifdef	ECHOCTL
-	if (on)
-		termbuf.c_lflag &= ~ECHOCTL;
-	else
-		termbuf.c_lflag |= ECHOCTL;
-# endif
-# ifdef	TCTLECH
-	if (on)
-		termbuf.c_lflag &= ~TCTLECH;
-	else
-		termbuf.c_lflag |= TCTLECH;
-# endif
-#endif
-}
-
-int
-tty_iscrnl(void)
-{
-#ifndef	USE_TERMIO
-	return (termbuf.sg.sg_flags & CRMOD);
-#else
-	return (termbuf.c_iflag & ICRNL);
-#endif
-}
-
-/*
- * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD).
- */
-#if B4800 != 4800
-#define	DECODE_BAUD
-#endif
-
-#ifdef	DECODE_BAUD
-
-/*
- * A table of available terminal speeds
- */
-struct termspeeds {
-	int	speed;
-	int	value;
-} termspeeds[] = {
-	{ 0,      B0 },      { 50,    B50 },    { 75,     B75 },
-	{ 110,    B110 },    { 134,   B134 },   { 150,    B150 },
-	{ 200,    B200 },    { 300,   B300 },   { 600,    B600 },
-	{ 1200,   B1200 },   { 1800,  B1800 },  { 2400,   B2400 },
-	{ 4800,   B4800 },
-#ifdef	B7200
-	{ 7200,  B7200 },
-#endif
-	{ 9600,   B9600 },
-#ifdef	B14400
-	{ 14400,  B14400 },
-#endif
-#ifdef	B19200
-	{ 19200,  B19200 },
-#endif
-#ifdef	B28800
-	{ 28800,  B28800 },
-#endif
-#ifdef	B38400
-	{ 38400,  B38400 },
-#endif
-#ifdef	B57600
-	{ 57600,  B57600 },
-#endif
-#ifdef	B115200
-	{ 115200, B115200 },
-#endif
-#ifdef	B230400
-	{ 230400, B230400 },
-#endif
-	{ -1,     0 }
-};
-#endif	/* DECODE_BAUD */
-
-void
-tty_tspeed(int val)
-{
-#ifdef	DECODE_BAUD
-	struct termspeeds *tp;
-
-	for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++)
-		;
-	if (tp->speed == -1)	/* back up to last valid value */
-		--tp;
-	cfsetospeed(&termbuf, tp->value);
-#else	/* DECODE_BAUD */
-	cfsetospeed(&termbuf, val);
-#endif	/* DECODE_BAUD */
-}
-
-void
-tty_rspeed(int val)
-{
-#ifdef	DECODE_BAUD
-	struct termspeeds *tp;
-
-	for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++)
-		;
-	if (tp->speed == -1)	/* back up to last valid value */
-		--tp;
-	cfsetispeed(&termbuf, tp->value);
-#else	/* DECODE_BAUD */
-	cfsetispeed(&termbuf, val);
-#endif	/* DECODE_BAUD */
-}
-
-/*
- * getptyslave()
- *
- * Open the slave side of the pty, and do any initialization
- * that is necessary.
- */
-static void
-getptyslave(void)
-{
-	int t = -1;
-	char erase;
-
-# ifdef	LINEMODE
-	int waslm;
-# endif
-# ifdef	TIOCGWINSZ
-	struct winsize ws;
-	extern int def_row, def_col;
-# endif
-	extern int def_tspeed, def_rspeed;
-	/*
-	 * Opening the slave side may cause initilization of the
-	 * kernel tty structure.  We need remember the state of
-	 * 	if linemode was turned on
-	 *	terminal window size
-	 *	terminal speed
-	 *	erase character
-	 * so that we can re-set them if we need to.
-	 */
-# ifdef	LINEMODE
-	waslm = tty_linemode();
-# endif
-	erase = termbuf.c_cc[VERASE];
-
-	/*
-	 * Make sure that we don't have a controlling tty, and
-	 * that we are the session (process group) leader.
-	 */
-# ifdef	TIOCNOTTY
-	t = open(_PATH_TTY, O_RDWR);
-	if (t >= 0) {
-		(void) ioctl(t, TIOCNOTTY, (char *)0);
-		(void) close(t);
-	}
-# endif
-
-	t = cleanopen(line);
-	if (t < 0)
-		fatalperror(net, line);
-
-
-	/*
-	 * set up the tty modes as we like them to be.
-	 */
-	init_termbuf();
-# ifdef	TIOCGWINSZ
-	if (def_row || def_col) {
-		memset((char *)&ws, 0, sizeof(ws));
-		ws.ws_col = def_col;
-		ws.ws_row = def_row;
-		(void)ioctl(t, TIOCSWINSZ, (char *)&ws);
-	}
-# endif
-
-	/*
-	 * Settings for sgtty based systems
-	 */
-# ifndef	USE_TERMIO
-	termbuf.sg.sg_flags |= CRMOD|ANYP|ECHO|XTABS;
-# endif	/* USE_TERMIO */
-
-	/*
-	 * Settings for all other termios/termio based
-	 * systems, other than 4.4BSD.  In 4.4BSD the
-	 * kernel does the initial terminal setup.
-	 */
-	tty_rspeed((def_rspeed > 0) ? def_rspeed : 9600);
-	tty_tspeed((def_tspeed > 0) ? def_tspeed : 9600);
-	if (erase)
-		termbuf.c_cc[VERASE] = erase;
-# ifdef	LINEMODE
-	if (waslm)
-		tty_setlinemode(1);
-# endif	/* LINEMODE */
-
-	/*
-	 * Set the tty modes, and make this our controlling tty.
-	 */
-	set_termbuf();
-	if (login_tty(t) == -1)
-		fatalperror(net, "login_tty");
-	if (net > 2)
-		(void) close(net);
-}
-
-#ifndef	O_NOCTTY
-#define	O_NOCTTY	0
-#endif
-/*
- * Open the specified slave side of the pty,
- * making sure that we have a clean tty.
- */
-int
-cleanopen(char *li)
-{
-	int t;
-
-	/*
-	 * Make sure that other people can't open the
-	 * slave side of the connection.
-	 */
-	(void) chown(li, 0, 0);
-	(void) chmod(li, 0600);
-
-	(void) revoke(li);
-
-	t = open(line, O_RDWR|O_NOCTTY);
-
-	if (t < 0)
-		return(-1);
-
-	return(t);
-}
-
-/*
- * startslave(host)
- *
- * Given a hostname, do whatever
- * is necessary to startup the login process on the slave side of the pty.
- */
-
-/* ARGSUSED */
-void
-startslave(char *host, int autologin, char *autoname)
-{
-	int i;
-
-
-
-	if ((i = fork()) < 0)
-		fatalperror(net, "fork");
-	if (i) {
-	} else {
-		getptyslave();
-		start_login(host, autologin, autoname);
-		/*NOTREACHED*/
-	}
-}
-
-void
-init_env(void)
-{
-	char **envp;
-
-	envp = envinit;
-	if ((*envp = getenv("TZ")))
-		*envp++ -= 3;
-	*envp = 0;
-	environ = envinit;
-}
-
-
-/*
- * start_login(host)
- *
- * Assuming that we are now running as a child processes, this
- * function will turn us into the login process.
- */
-
-#define undef1 __unused
-
-void
-start_login(char *host undef1, int autologin undef1, char *name undef1)
-{
-	char **argv;
-
-	scrub_env();
-
-	/*
-	 * -h : pass on name of host.
-	 *		WARNING:  -h is accepted by login if and only if
-	 *			getuid() == 0.
-	 * -p : don't clobber the environment (so terminal type stays set).
-	 *
-	 * -f : force this login, he has already been authenticated
-	 */
-	argv = addarg(0, "login");
-
-#if	!defined(NO_LOGIN_H)
-#endif
-#if	!defined(NO_LOGIN_P)
-	argv = addarg(argv, "-p");
-#endif
-#ifdef	LINEMODE
-	/*
-	 * Set the environment variable "LINEMODE" to either
-	 * "real" or "kludge" if we are operating in either
-	 * real or kludge linemode.
-	 */
-	if (lmodetype == REAL_LINEMODE)
-		setenv("LINEMODE", "real", 1);
-# ifdef KLUDGELINEMODE
-	else if (lmodetype == KLUDGE_LINEMODE || lmodetype == KLUDGE_OK)
-		setenv("LINEMODE", "kludge", 1);
-# endif
-#endif
-#ifdef	BFTPDAEMON
-	/*
-	 * Are we working as the bftp daemon?  If so, then ask login
-	 * to start bftp instead of shell.
-	 */
-	if (bftpd) {
-		argv = addarg(argv, "-e");
-		argv = addarg(argv, BFTPPATH);
-	} else
-#endif
-	if (getenv("USER")) {
- 		argv = addarg(argv, "--");
-		argv = addarg(argv, getenv("USER"));
-#if	defined(LOGIN_ARGS) && defined(NO_LOGIN_P)
-		{
-			char **cpp;
-			for (cpp = environ; *cpp; cpp++)
-				argv = addarg(argv, *cpp);
-		}
-#endif
-		/*
-		 * Assume that login will set the USER variable
-		 * correctly.  For SysV systems, this means that
-		 * USER will no longer be set, just LOGNAME by
-		 * login.  (The problem is that if the auto-login
-		 * fails, and the user then specifies a different
-		 * account name, he can get logged in with both
-		 * LOGNAME and USER in his environment, but the
-		 * USER value will be wrong.
-		 */
-		unsetenv("USER");
-	}
-	closelog();
-
-	if (altlogin == NULL) {
-		altlogin = _PATH_LOGIN;
-	}
-	execv(altlogin, argv);
-
-	syslog(LOG_ERR, "%s: %m", altlogin);
-	fatalperror(net, altlogin);
-	/*NOTREACHED*/
-}
-
-static char **
-addarg(char **argv, const char *val)
-{
-	char **cpp;
-
-	if (argv == NULL) {
-		/*
-		 * 10 entries, a leading length, and a null
-		 */
-		argv = (char **)malloc(sizeof(*argv) * 12);
-		if (argv == NULL)
-			return(NULL);
-		*argv++ = (char *)10;
-		*argv = (char *)0;
-	}
-	for (cpp = argv; *cpp; cpp++)
-		;
-	if (cpp == &argv[(long)argv[-1]]) {
-		--argv;
-		*argv = (char *)((long)(*argv) + 10);
-		argv = (char **)realloc(argv, sizeof(*argv)*((long)(*argv) + 2));
-		if (argv == NULL)
-			return(NULL);
-		argv++;
-		cpp = &argv[(long)argv[-1] - 10];
-	}
-	*cpp++ = strdup(val);
-	*cpp = 0;
-	return(argv);
-}
-
-/*
- * scrub_env()
- *
- * We only accept the environment variables listed below.
- */
-void
-scrub_env(void)
-{
-	static const char *rej[] = {
-		"TERMCAP=/",
-		NULL
-	};
-
-	static const char *acc[] = {
-		"XAUTH=", "XAUTHORITY=", "DISPLAY=",
-		"TERM=",
-		"EDITOR=",
-		"PAGER=",
-		"LOGNAME=",
-		"POSIXLY_CORRECT=",
-		"PRINTER=",
-		NULL
-	};
-
-	char **cpp, **cpp2;
-	const char **p;
- 
- 	for (cpp2 = cpp = environ; *cpp; cpp++) {
-		int reject_it = 0;
-
-		for(p = rej; *p; p++)
-			if(strncmp(*cpp, *p, strlen(*p)) == 0) {
-				reject_it = 1;
-				break;
-			}
-		if (reject_it)
-			continue;
-
-		for(p = acc; *p; p++)
-			if(strncmp(*cpp, *p, strlen(*p)) == 0)
-				break;
-		if(*p != NULL)
- 			*cpp2++ = *cpp;
- 	}
-	*cpp2 = NULL;
-}
-
-/*
- * cleanup()
- *
- * This is the routine to call when we are all through, to
- * clean up anything that needs to be cleaned up.
- */
-/* ARGSUSED */
-void
-cleanup(int sig __unused)
-{
-	char *p;
-	sigset_t mask;
-
-	p = line + sizeof(_PATH_DEV) - 1;
-	/*
-	 * Block all signals before clearing the utmp entry.  We don't want to
-	 * be called again after calling logout() and then not add the wtmp
-	 * entry because of not finding the corresponding entry in utmp.
-	 */
-	sigfillset(&mask);
-	sigprocmask(SIG_SETMASK, &mask, NULL);
-	if (logout(p))
-		logwtmp(p, "", "");
-	(void)chmod(line, 0666);
-	(void)chown(line, 0, 0);
-	*p = 'p';
-	(void)chmod(line, 0666);
-	(void)chown(line, 0, 0);
-	(void) shutdown(net, 2);
-	_exit(1);
-}
diff --git a/libexec/telnetd/telnetd.8 b/libexec/telnetd/telnetd.8
deleted file mode 100644
index 306e15eb0a52..000000000000
--- a/libexec/telnetd/telnetd.8
+++ /dev/null
@@ -1,593 +0,0 @@
-.\" Copyright (c) 1983, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)telnetd.8	8.4 (Berkeley) 6/1/94
-.\" $FreeBSD$
-.\"
-.Dd January 27, 2000
-.Dt TELNETD 8
-.Os
-.Sh NAME
-.Nm telnetd
-.Nd DARPA
-.Tn TELNET
-protocol server
-.Sh SYNOPSIS
-.Nm /usr/libexec/telnetd
-.Op Fl BUhlkn
-.Op Fl D Ar debugmode
-.Op Fl S Ar tos
-.Op Fl X Ar authtype
-.Op Fl a Ar authmode
-.Op Fl edebug
-.Op Fl p Ar loginprog
-.Op Fl u Ar len
-.Op Fl debug Op Ar port
-.Sh DESCRIPTION
-The
-.Nm
-utility is a server which supports the
-.Tn DARPA
-standard
-.Tn TELNET
-virtual terminal protocol.
-The
-.Nm
-utility is normally invoked by the internet server (see
-.Xr inetd 8 )
-for requests to connect to the
-.Tn TELNET
-port as indicated by the
-.Pa /etc/services
-file (see
-.Xr services 5 ) .
-The
-.Fl debug
-option may be used to start up
-.Nm
-manually, instead of through
-.Xr inetd 8 .
-If started up this way,
-.Ar port
-may be specified to run
-.Nm
-on an alternate
-.Tn TCP
-port number.
-.Pp
-The
-.Nm
-utility accepts the following options:
-.Bl -tag -width indent
-.It Fl a Ar authmode
-This option may be used for specifying what mode should
-be used for authentication.
-Note that this option is only useful if
-.Nm
-has been compiled with support for the
-.Dv AUTHENTICATION
-option.
-There are several valid values for
-.Ar authmode :
-.Bl -tag -width debug
-.It Cm debug
-Turn on authentication debugging code.
-.It Cm user
-Only allow connections when the remote user
-can provide valid authentication information
-to identify the remote user,
-and is allowed access to the specified account
-without providing a password.
-.It Cm valid
-Only allow connections when the remote user
-can provide valid authentication information
-to identify the remote user.
-The
-.Xr login 1
-command will provide any additional user verification
-needed if the remote user is not allowed automatic
-access to the specified account.
-.It Cm other
-Only allow connections that supply some authentication information.
-This option is currently not supported
-by any of the existing authentication mechanisms,
-and is thus the same as specifying
-.Fl a
-.Cm valid .
-.It Cm none
-This is the default state.
-Authentication information is not required.
-If no or insufficient authentication information
-is provided, then the
-.Xr login 1
-program will provide the necessary user
-verification.
-.It Cm off
-Disable the authentication code.
-All user verification will happen through the
-.Xr login 1
-program.
-.El
-.It Fl B
-Specify bftp server mode.  In this mode,
-.Nm
-causes login to start a
-.Xr bftp 1
-session rather than the user's
-normal shell.  In bftp daemon mode normal
-logins are not supported, and it must be used
-on a port other than the normal
-.Tn TELNET
-port.
-.It Fl D Ar debugmode
-This option may be used for debugging purposes.
-This allows
-.Nm
-to print out debugging information
-to the connection, allowing the user to see what
-.Nm
-is doing.
-There are several possible values for
-.Ar debugmode :
-.Bl -tag -width exercise
-.It Cm options
-Print information about the negotiation of
-.Tn TELNET
-options.
-.It Cm report
-Print the
-.Cm options
-information, plus some additional information
-about what processing is going on.
-.It Cm netdata
-Display the data stream received by
-.Nm .
-.It Cm ptydata
-Display data written to the pty.
-.It Cm exercise
-Has not been implemented yet.
-.El
-.It Fl debug
-Enable debugging on each socket created by
-.Nm
-(see
-.Dv SO_DEBUG
-in
-.Xr socket 2 ) .
-.It Fl edebug
-If
-.Nm
-has been compiled with support for data encryption, then the
-.Fl edebug
-option may be used to enable encryption debugging code.
-.It Fl h
-Disable the printing of host-specific information before
-login has been completed.
-.It Fl k
-This option is only useful if
-.Nm
-has been compiled with both linemode and kludge linemode
-support.  If the
-.Fl k
-option is specified, then if the remote client does not
-support the
-.Dv LINEMODE
-option, then
-.Nm
-will operate in character at a time mode.
-It will still support kludge linemode, but will only
-go into kludge linemode if the remote client requests
-it.
-(This is done by the client sending
-.Dv DONT SUPPRESS-GO-AHEAD
-and
-.Dv DONT ECHO . )
-The
-.Fl k
-option is most useful when there are remote clients
-that do not support kludge linemode, but pass the heuristic
-(if they respond with
-.Dv WILL TIMING-MARK
-in response to a
-.Dv DO TIMING-MARK )
-for kludge linemode support.
-.It Fl l
-Specify line mode. Try to force clients to use line-
-at-a-time mode.
-If the
-.Dv LINEMODE
-option is not supported, it will go
-into kludge linemode.
-.It Fl n
-Disable
-.Dv TCP
-keep-alives.  Normally
-.Nm
-enables the
-.Tn TCP
-keep-alive mechanism to probe connections that
-have been idle for some period of time to determine
-if the client is still there, so that idle connections
-from machines that have crashed or can no longer
-be reached may be cleaned up.
-.It Fl p Ar loginprog
-Specify an alternate
-.Xr login 1
-command to run to complete the login.  The alternate command must
-understand the same command arguments as the standard login.
-.It Fl S Ar tos
-.It Fl u Ar len
-This option is used to specify the size of the field
-in the
-.Dv utmp
-structure that holds the remote host name.
-If the resolved host name is longer than
-.Ar len ,
-the dotted decimal value will be used instead.
-This allows hosts with very long host names that
-overflow this field to still be uniquely identified.
-Specifying
-.Fl u0
-indicates that only dotted decimal addresses
-should be put into the
-.Pa utmp
-file.
-.It Fl U
-This option causes
-.Nm
-to refuse connections from addresses that
-cannot be mapped back into a symbolic name
-via the
-.Xr gethostbyaddr 3
-routine.
-.It Fl X Ar authtype
-This option is only valid if
-.Nm
-has been built with support for the authentication option.
-It disables the use of
-.Ar authtype
-authentication, and
-can be used to temporarily disable
-a specific authentication type without having to recompile
-.Nm .
-.El
-.Pp
-The
-.Nm
-utility operates by allocating a pseudo-terminal device (see
-.Xr pty 4 )
-for a client, then creating a login process which has
-the slave side of the pseudo-terminal as
-.Dv stdin ,
-.Dv stdout
-and
-.Dv stderr .
-The
-.Nm
-utility manipulates the master side of the pseudo-terminal,
-implementing the
-.Tn TELNET
-protocol and passing characters
-between the remote client and the login process.
-.Pp
-When a
-.Tn TELNET
-session is started up,
-.Nm
-sends
-.Tn TELNET
-options to the client side indicating
-a willingness to do the
-following
-.Tn TELNET
-options, which are described in more detail below:
-.Bd -literal -offset indent
-DO AUTHENTICATION
-WILL ENCRYPT
-DO TERMINAL TYPE
-DO TSPEED
-DO XDISPLOC
-DO NEW-ENVIRON
-DO ENVIRON
-WILL SUPPRESS GO AHEAD
-DO ECHO
-DO LINEMODE
-DO NAWS
-WILL STATUS
-DO LFLOW
-DO TIMING-MARK
-.Ed
-.Pp
-The pseudo-terminal allocated to the client is configured
-to operate in
-.Dq cooked
-mode, and with
-.Dv XTABS and
-.Dv CRMOD
-enabled (see
-.Xr tty 4 ) .
-.Pp
-The
-.Nm
-utility has support for enabling locally the following
-.Tn TELNET
-options:
-.Bl -tag -width "DO AUTHENTICATION"
-.It "WILL ECHO"
-When the
-.Dv LINEMODE
-option is enabled, a
-.Dv WILL ECHO
-or
-.Dv WONT ECHO
-will be sent to the client to indicate the
-current state of terminal echoing.
-When terminal echo is not desired, a
-.Dv WILL ECHO
-is sent to indicate that
-.Nm
-will take care of echoing any data that needs to be
-echoed to the terminal, and then nothing is echoed.
-When terminal echo is desired, a
-.Dv WONT ECHO
-is sent to indicate that
-.Nm
-will not be doing any terminal echoing, so the
-client should do any terminal echoing that is needed.
-.It "WILL BINARY"
-Indicate that the client is willing to send a
-8 bits of data, rather than the normal 7 bits
-of the Network Virtual Terminal.
-.It "WILL SGA"
-Indicate that it will not be sending
-.Dv IAC GA ,
-go ahead, commands.
-.It "WILL STATUS"
-Indicate a willingness to send the client, upon
-request, of the current status of all
-.Tn TELNET
-options.
-.It "WILL TIMING-MARK"
-Whenever a
-.Dv DO TIMING-MARK
-command is received, it is always responded
-to with a
-.Dv WILL TIMING-MARK .
-.It "WILL LOGOUT"
-When a
-.Dv DO LOGOUT
-is received, a
-.Dv WILL LOGOUT
-is sent in response, and the
-.Tn TELNET
-session is shut down.
-.It "WILL ENCRYPT"
-Only sent if
-.Nm
-is compiled with support for data encryption, and
-indicates a willingness to decrypt
-the data stream.
-.El
-.Pp
-The
-.Nm
-utility has support for enabling remotely the following
-.Tn TELNET
-options:
-.Bl -tag -width "DO AUTHENTICATION"
-.It "DO BINARY"
-Sent to indicate that
-.Nm
-is willing to receive an 8 bit data stream.
-.It "DO LFLOW"
-Requests that the client handle flow control
-characters remotely.
-.It "DO ECHO"
-This is not really supported, but is sent to identify a
-.Bx 4.2
-.Xr telnet 1
-client, which will improperly respond with
-.Dv WILL ECHO .
-If a
-.Dv WILL ECHO
-is received, a
-.Dv DONT ECHO
-will be sent in response.
-.It "DO TERMINAL-TYPE"
-Indicate a desire to be able to request the
-name of the type of terminal that is attached
-to the client side of the connection.
-.It "DO SGA"
-Indicate that it does not need to receive
-.Dv IAC GA ,
-the go ahead command.
-.It "DO NAWS"
-Requests that the client inform the server when
-the window (display) size changes.
-.It "DO TERMINAL-SPEED"
-Indicate a desire to be able to request information
-about the speed of the serial line to which
-the client is attached.
-.It "DO XDISPLOC"
-Indicate a desire to be able to request the name
-of the X Window System display that is associated with
-the telnet client.
-.It "DO NEW-ENVIRON"
-Indicate a desire to be able to request environment
-variable information, as described in RFC 1572.
-.It "DO ENVIRON"
-Indicate a desire to be able to request environment
-variable information, as described in RFC 1408.
-.It "DO LINEMODE"
-Only sent if
-.Nm
-is compiled with support for linemode, and
-requests that the client do line by line processing.
-.It "DO TIMING-MARK"
-Only sent if
-.Nm
-is compiled with support for both linemode and
-kludge linemode, and the client responded with
-.Dv WONT LINEMODE .
-If the client responds with
-.Dv WILL TM ,
-the it is assumed that the client supports
-kludge linemode.
-Note that the
-.Op Fl k
-option can be used to disable this.
-.It "DO AUTHENTICATION"
-Only sent if
-.Nm
-is compiled with support for authentication, and
-indicates a willingness to receive authentication
-information for automatic login.
-.It "DO ENCRYPT"
-Only sent if
-.Nm
-is compiled with support for data encryption, and
-indicates a willingness to decrypt
-the data stream.
-.El
-.Sh NOTES
-By default
-.Nm
-will read the
-.Em \&he ,
-.Em \&hn ,
-and
-.Em \&im
-capabilities from
-.Pa /etc/gettytab
-and use that information (if present) to determine
-what to display before the login: prompt. You can
-also use a System V style
-.Pa /etc/issue
-file by using the
-.Em \&if
-capability, which will override
-.Em \&im .
-The information specified in either
-.Em \&im
-or
-.Em \&if
-will be displayed to both console and remote logins.
-.\" .Sh ENVIRONMENT
-.Sh FILES
-.Bl -tag -width /usr/ucb/bftp -compact
-.It Pa /etc/services
-.It Pa /etc/gettytab
-.It Pa /etc/iptos
-(if supported)
-.It Pa /usr/ucb/bftp
-(if supported)
-.El
-.Sh "SEE ALSO"
-.Xr bftp 1 ,
-.Xr login 1 ,
-.Xr gettytab 5 ,
-.Xr telnet 1
-(if supported)
-.Sh STANDARDS
-.Bl -tag -compact -width RFC-1572
-.It Cm RFC-854
-.Tn TELNET
-PROTOCOL SPECIFICATION
-.It Cm RFC-855
-TELNET OPTION SPECIFICATIONS
-.It Cm RFC-856
-TELNET BINARY TRANSMISSION
-.It Cm RFC-857
-TELNET ECHO OPTION
-.It Cm RFC-858
-TELNET SUPPRESS GO AHEAD OPTION
-.It Cm RFC-859
-TELNET STATUS OPTION
-.It Cm RFC-860
-TELNET TIMING MARK OPTION
-.It Cm RFC-861
-TELNET EXTENDED OPTIONS - LIST OPTION
-.It Cm RFC-885
-TELNET END OF RECORD OPTION
-.It Cm RFC-1073
-Telnet Window Size Option
-.It Cm RFC-1079
-Telnet Terminal Speed Option
-.It Cm RFC-1091
-Telnet Terminal-Type Option
-.It Cm RFC-1096
-Telnet X Display Location Option
-.It Cm RFC-1123
-Requirements for Internet Hosts -- Application and Support
-.It Cm RFC-1184
-Telnet Linemode Option
-.It Cm RFC-1372
-Telnet Remote Flow Control Option
-.It Cm RFC-1416
-Telnet Authentication Option
-.It Cm RFC-1411
-Telnet Authentication: Kerberos Version 4
-.It Cm RFC-1412
-Telnet Authentication: SPX
-.It Cm RFC-1571
-Telnet Environment Option Interoperability Issues
-.It Cm RFC-1572
-Telnet Environment Option
-.El
-.Sh BUGS
-Some
-.Tn TELNET
-commands are only partially implemented.
-.Pp
-Because of bugs in the original
-.Bx 4.2
-.Xr telnet 1 ,
-.Nm
-performs some dubious protocol exchanges to try to discover if the remote
-client is, in fact, a
-.Bx 4.2
-.Xr telnet 1 .
-.Pp
-Binary mode
-has no common interpretation except between similar operating systems
-(Unix in this case).
-.Pp
-The terminal type name received from the remote client is converted to
-lower case.
-.Pp
-The
-.Nm
-utility never sends
-.Tn TELNET
-.Dv IAC GA
-(go ahead) commands.
-.Sh HISTORY
-IPv6 support was added by WIDE/KAME project.
diff --git a/libexec/telnetd/telnetd.c b/libexec/telnetd/telnetd.c
deleted file mode 100644
index 042fea55c8c6..000000000000
--- a/libexec/telnetd/telnetd.c
+++ /dev/null
@@ -1,1117 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)telnetd.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "telnetd.h"
-#include "pathnames.h"
-
-#include <sys/mman.h>
-#include <err.h>
-#include <libutil.h>
-#include <paths.h>
-#include <termcap.h>
-#include <utmp.h>
-
-#include <arpa/inet.h>
-
-#include <libtelnet/misc.h>
-
-char	remote_hostname[MAXHOSTNAMELEN];
-size_t	utmp_len = sizeof(remote_hostname) - 1;
-int	registerd_host_only = 0;
-
-
-/*
- * I/O data buffers,
- * pointers, and counters.
- */
-char	ptyibuf[BUFSIZ], *ptyip = ptyibuf;
-char	ptyibuf2[BUFSIZ];
-
-int readstream(int, char *, int);
-void doit(struct sockaddr *);
-int terminaltypeok(char *);
-
-int	hostinfo = 1;			/* do we print login banner? */
-
-static int debug = 0;
-int keepalive = 1;
-const char *altlogin;
-
-void doit(struct sockaddr *);
-int terminaltypeok(char *);
-void startslave(char *, int, char *);
-extern void usage(void);
-static void _gettermname(void);
-
-/*
- * The string to pass to getopt().  We do it this way so
- * that only the actual options that we support will be
- * passed off to getopt().
- */
-char valid_opts[] = {
-	'd', ':', 'h', 'k', 'n', 'p', ':', 'S', ':', 'u', ':', 'U',
-	'4', '6',
-#ifdef BFTPDAEMON
-	'B',
-#endif
-#ifdef DIAGNOSTICS
-	'D', ':',
-#endif
-#ifdef	LINEMODE
-	'l',
-#endif
-	'\0'
-};
-
-int family = AF_INET;
-
-#ifndef	MAXHOSTNAMELEN
-#define	MAXHOSTNAMELEN 256
-#endif	/* MAXHOSTNAMELEN */
-
-char *hostname;
-char host_name[MAXHOSTNAMELEN];
-
-extern void telnet(int, int, char *);
-
-int level;
-char user_name[256];
-
-int
-main(int argc, char *argv[])
-{
-	struct sockaddr_storage from;
-	int on = 1, fromlen;
-	int ch;
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-	int tos = -1;
-#endif
-
-	pfrontp = pbackp = ptyobuf;
-	netip = netibuf;
-	nfrontp = nbackp = netobuf;
-
-	/*
-	 * This initialization causes linemode to default to a configuration
-	 * that works on all telnet clients, including the FreeBSD client.
-	 * This is not quite the same as the telnet client issuing a "mode
-	 * character" command, but has most of the same benefits, and is
-	 * preferable since some clients (like usofts) don't have the
-	 * mode character command anyway and linemode breaks things.
-	 * The most notable symptom of fix is that csh "set filec" operations
-	 * like <ESC> (filename completion) and ^D (choices) keys now work
-	 * in telnet sessions and can be used more than once on the same line.
-	 * CR/LF handling is also corrected in some termio modes.  This 
-	 * change resolves problem reports bin/771 and bin/1037.
-	 */
-
-	linemode=1;	/*Default to mode that works on bulk of clients*/
-
-	while ((ch = getopt(argc, argv, valid_opts)) != -1) {
-		switch(ch) {
-
-
-#ifdef BFTPDAEMON
-		case 'B':
-			bftpd++;
-			break;
-#endif /* BFTPDAEMON */
-
-		case 'd':
-			if (strcmp(optarg, "ebug") == 0) {
-				debug++;
-				break;
-			}
-			usage();
-			/* NOTREACHED */
-			break;
-
-#ifdef DIAGNOSTICS
-		case 'D':
-			/*
-			 * Check for desired diagnostics capabilities.
-			 */
-			if (!strcmp(optarg, "report")) {
-				diagnostic |= TD_REPORT|TD_OPTIONS;
-			} else if (!strcmp(optarg, "exercise")) {
-				diagnostic |= TD_EXERCISE;
-			} else if (!strcmp(optarg, "netdata")) {
-				diagnostic |= TD_NETDATA;
-			} else if (!strcmp(optarg, "ptydata")) {
-				diagnostic |= TD_PTYDATA;
-			} else if (!strcmp(optarg, "options")) {
-				diagnostic |= TD_OPTIONS;
-			} else {
-				usage();
-				/* NOT REACHED */
-			}
-			break;
-#endif /* DIAGNOSTICS */
-
-
-		case 'h':
-			hostinfo = 0;
-			break;
-
-#ifdef	LINEMODE
-		case 'l':
-			alwayslinemode = 1;
-			break;
-#endif	/* LINEMODE */
-
-		case 'k':
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-			lmodetype = NO_AUTOKLUDGE;
-#else
-			/* ignore -k option if built without kludge linemode */
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-			break;
-
-		case 'n':
-			keepalive = 0;
-			break;
-
-		case 'p':
-			altlogin = optarg;
-			break;
-
-		case 'S':
-#ifdef	HAS_GETTOS
-			if ((tos = parsetos(optarg, "tcp")) < 0)
-				warnx("%s%s%s",
-					"bad TOS argument '", optarg,
-					"'; will try to use default TOS");
-#else
-			warnx("TOS option unavailable; -S flag not supported");
-#endif
-			break;
-
-		case 'u':
-			utmp_len = (size_t)atoi(optarg);
-			if (utmp_len >= sizeof(remote_hostname))
-				utmp_len = sizeof(remote_hostname) - 1;
-			break;
-
-		case 'U':
-			registerd_host_only = 1;
-			break;
-
-
-		case '4':
-			family = AF_INET;
-			break;
-
-#ifdef INET6
-		case '6':
-			family = AF_INET6;
-			break;
-#endif
-
-		default:
-			warnx("%c: unknown option", ch);
-			/* FALLTHROUGH */
-		case '?':
-			usage();
-			/* NOTREACHED */
-		}
-	}
-
-	argc -= optind;
-	argv += optind;
-
-	if (debug) {
-	    int s, ns, foo, error;
-	    const char *service = "telnet";
-	    struct addrinfo hints, *res;
-
-	    if (argc > 1) {
-		usage();
-		/* NOT REACHED */
-	    } else if (argc == 1)
-		service = *argv;
-
-	    memset(&hints, 0, sizeof(hints));
-	    hints.ai_flags = AI_PASSIVE;
-	    hints.ai_family = family;
-	    hints.ai_socktype = SOCK_STREAM;
-	    hints.ai_protocol = 0;
-	    error = getaddrinfo(NULL, service, &hints, &res);
-
-	    if (error) {
-		errx(1, "tcp/%s: %s\n", service, gai_strerror(error));
-		if (error == EAI_SYSTEM)
-		    errx(1, "tcp/%s: %s\n", service, strerror(errno));
-		usage();
-	    }
-
-	    s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
-	    if (s < 0)
-		    err(1, "socket");
-	    (void) setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
-				(char *)&on, sizeof(on));
-	    if (bind(s, res->ai_addr, res->ai_addrlen) < 0)
-		err(1, "bind");
-	    if (listen(s, 1) < 0)
-		err(1, "listen");
-	    foo = res->ai_addrlen;
-	    ns = accept(s, res->ai_addr, &foo);
-	    if (ns < 0)
-		err(1, "accept");
-	    (void) dup2(ns, 0);
-	    (void) close(ns);
-	    (void) close(s);
-#ifdef convex
-	} else if (argc == 1) {
-		; /* VOID*/		/* Just ignore the host/port name */
-#endif
-	} else if (argc > 0) {
-		usage();
-		/* NOT REACHED */
-	}
-
-	openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON);
-	fromlen = sizeof (from);
-	if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) {
-		warn("getpeername");
-		_exit(1);
-	}
-	if (keepalive &&
-	    setsockopt(0, SOL_SOCKET, SO_KEEPALIVE,
-			(char *)&on, sizeof (on)) < 0) {
-		syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m");
-	}
-
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-	if (from.ss_family == AF_INET) {
-# if	defined(HAS_GETTOS)
-		struct tosent *tp;
-		if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
-			tos = tp->t_tos;
-# endif
-		if (tos < 0)
-			tos = 020;	/* Low Delay bit */
-		if (tos
-		   && (setsockopt(0, IPPROTO_IP, IP_TOS,
-				  (char *)&tos, sizeof(tos)) < 0)
-		   && (errno != ENOPROTOOPT) )
-			syslog(LOG_WARNING, "setsockopt (IP_TOS): %m");
-	}
-#endif	/* defined(IPPROTO_IP) && defined(IP_TOS) */
-	net = 0;
-	doit((struct sockaddr *)&from);
-	/* NOTREACHED */
-	return(0);
-}  /* end of main */
-
-	void
-usage()
-{
-	fprintf(stderr, "usage: telnetd");
-#ifdef BFTPDAEMON
-	fprintf(stderr, " [-B]");
-#endif
-	fprintf(stderr, " [-debug]");
-#ifdef DIAGNOSTICS
-	fprintf(stderr, " [-D (options|report|exercise|netdata|ptydata)]\n\t");
-#endif
-	fprintf(stderr, " [-h]");
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-	fprintf(stderr, " [-k]");
-#endif
-#ifdef LINEMODE
-	fprintf(stderr, " [-l]");
-#endif
-	fprintf(stderr, " [-n]");
-	fprintf(stderr, "\n\t");
-#ifdef	HAS_GETTOS
-	fprintf(stderr, " [-S tos]");
-#endif
-	fprintf(stderr, " [-u utmp_hostname_length] [-U]");
-	fprintf(stderr, " [port]\n");
-	exit(1);
-}
-
-/*
- * getterminaltype
- *
- *	Ask the other end to send along its terminal type and speed.
- * Output is the variable terminaltype filled in.
- */
-static unsigned char ttytype_sbbuf[] = {
-	IAC, SB, TELOPT_TTYPE, TELQUAL_SEND, IAC, SE
-};
-
-
-#define undef2 __unused
-
-static int
-getterminaltype(char *name undef2)
-{
-    int retval = -1;
-
-    settimer(baseline);
-
-    send_do(TELOPT_TTYPE, 1);
-    send_do(TELOPT_TSPEED, 1);
-    send_do(TELOPT_XDISPLOC, 1);
-    send_do(TELOPT_NEW_ENVIRON, 1);
-    send_do(TELOPT_OLD_ENVIRON, 1);
-    while (
-	   his_will_wont_is_changing(TELOPT_TTYPE) ||
-	   his_will_wont_is_changing(TELOPT_TSPEED) ||
-	   his_will_wont_is_changing(TELOPT_XDISPLOC) ||
-	   his_will_wont_is_changing(TELOPT_NEW_ENVIRON) ||
-	   his_will_wont_is_changing(TELOPT_OLD_ENVIRON)) {
-	ttloop();
-    }
-    if (his_state_is_will(TELOPT_TSPEED)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_TSPEED, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    if (his_state_is_will(TELOPT_XDISPLOC)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_XDISPLOC, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    if (his_state_is_will(TELOPT_NEW_ENVIRON)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_NEW_ENVIRON, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    else if (his_state_is_will(TELOPT_OLD_ENVIRON)) {
-	static unsigned char sb[] =
-			{ IAC, SB, TELOPT_OLD_ENVIRON, TELQUAL_SEND, IAC, SE };
-
-	output_datalen(sb, sizeof sb);
-	DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2););
-    }
-    if (his_state_is_will(TELOPT_TTYPE)) {
-
-	output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf);
-	DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2,
-					sizeof ttytype_sbbuf - 2););
-    }
-    if (his_state_is_will(TELOPT_TSPEED)) {
-	while (sequenceIs(tspeedsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_XDISPLOC)) {
-	while (sequenceIs(xdisplocsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_NEW_ENVIRON)) {
-	while (sequenceIs(environsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_OLD_ENVIRON)) {
-	while (sequenceIs(oenvironsubopt, baseline))
-	    ttloop();
-    }
-    if (his_state_is_will(TELOPT_TTYPE)) {
-	char first[256], last[256];
-
-	while (sequenceIs(ttypesubopt, baseline))
-	    ttloop();
-
-	/*
-	 * If the other side has already disabled the option, then
-	 * we have to just go with what we (might) have already gotten.
-	 */
-	if (his_state_is_will(TELOPT_TTYPE) && !terminaltypeok(terminaltype)) {
-	    (void) strncpy(first, terminaltype, sizeof(first)-1);
-	    first[sizeof(first)-1] = '\0';
-	    for(;;) {
-		/*
-		 * Save the unknown name, and request the next name.
-		 */
-		(void) strncpy(last, terminaltype, sizeof(last)-1);
-		last[sizeof(last)-1] = '\0';
-		_gettermname();
-		if (terminaltypeok(terminaltype))
-		    break;
-		if ((strncmp(last, terminaltype, sizeof(last)) == 0) ||
-		    his_state_is_wont(TELOPT_TTYPE)) {
-		    /*
-		     * We've hit the end.  If this is the same as
-		     * the first name, just go with it.
-		     */
-		    if (strncmp(first, terminaltype, sizeof(first)) == 0)
-			break;
-		    /*
-		     * Get the terminal name one more time, so that
-		     * RFC1091 compliant telnets will cycle back to
-		     * the start of the list.
-		     */
-		     _gettermname();
-		    if (strncmp(first, terminaltype, sizeof(first)) != 0) {
-			(void) strncpy(terminaltype, first, sizeof(terminaltype)-1);
-			terminaltype[sizeof(terminaltype)-1] = '\0';
-		    }
-		    break;
-		}
-	    }
-	}
-    }
-    return(retval);
-}  /* end of getterminaltype */
-
-static void
-_gettermname(void)
-{
-    /*
-     * If the client turned off the option,
-     * we can't send another request, so we
-     * just return.
-     */
-    if (his_state_is_wont(TELOPT_TTYPE))
-	return;
-    settimer(baseline);
-    output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf);
-    DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2,
-					sizeof ttytype_sbbuf - 2););
-    while (sequenceIs(ttypesubopt, baseline))
-	ttloop();
-}
-
-int
-terminaltypeok(char *s)
-{
-    char buf[1024];
-
-    if (terminaltype == NULL)
-	return(1);
-
-    /*
-     * tgetent() will return 1 if the type is known, and
-     * 0 if it is not known.  If it returns -1, it couldn't
-     * open the database.  But if we can't open the database,
-     * it won't help to say we failed, because we won't be
-     * able to verify anything else.  So, we treat -1 like 1.
-     */
-    if (tgetent(buf, s) == 0)
-	return(0);
-    return(1);
-}
-
-/*
- * Get a pty, scan input lines.
- */
-void
-doit(struct sockaddr *who)
-{
-	int err_; /* XXX */
-	int ptynum;
-
-	/*
-	 * Find an available pty to use.
-	 */
-#ifndef	convex
-	pty = getpty(&ptynum);
-	if (pty < 0)
-		fatal(net, "All network ports in use");
-#else
-	for (;;) {
-		char *lp;
-
-		if ((lp = getpty()) == NULL)
-			fatal(net, "Out of ptys");
-
-		if ((pty = open(lp, 2)) >= 0) {
-			strlcpy(line,lp,sizeof(line));
-			line[5] = 't';
-			break;
-		}
-	}
-#endif
-
-	/* get name of connected client */
-	if (realhostname_sa(remote_hostname, sizeof(remote_hostname) - 1,
-	    who, who->sa_len) == HOSTNAME_INVALIDADDR && registerd_host_only)
-		fatal(net, "Couldn't resolve your address into a host name.\r\n\
-	Please contact your net administrator");
-	remote_hostname[sizeof(remote_hostname) - 1] = '\0';
-
-	trimdomain(remote_hostname, UT_HOSTSIZE);
-	if (!isdigit(remote_hostname[0]) && strlen(remote_hostname) > utmp_len)
-		err_ = getnameinfo(who, who->sa_len, remote_hostname,
-				  sizeof(remote_hostname), NULL, 0,
-				  NI_NUMERICHOST|NI_WITHSCOPEID);
-		/* XXX: do 'err_' check */
-
-	(void) gethostname(host_name, sizeof(host_name) - 1);
-	host_name[sizeof(host_name) - 1] = '\0';
-	hostname = host_name;
-
-
-	init_env();
-	/*
-	 * get terminal type.
-	 */
-	*user_name = 0;
-	level = getterminaltype(user_name);
-	setenv("TERM", terminaltype ? terminaltype : "network", 1);
-
-	telnet(net, pty, remote_hostname);	/* begin server process */
-
-	/*NOTREACHED*/
-}  /* end of doit */
-
-/*
- * Main loop.  Select from pty and network, and
- * hand data to telnet receiver finite state machine.
- */
-void
-telnet(int f, int p, char *host)
-{
-	int on = 1;
-#define	TABBUFSIZ	512
-	char	defent[TABBUFSIZ];
-	char	defstrs[TABBUFSIZ];
-#undef	TABBUFSIZ
-	char *HE;
-	char *HN;
-	char *IM;
-	int nfd;
-
-	/*
-	 * Initialize the slc mapping table.
-	 */
-	get_slc_defaults();
-
-	/*
-	 * Do some tests where it is desireable to wait for a response.
-	 * Rather than doing them slowly, one at a time, do them all
-	 * at once.
-	 */
-	if (my_state_is_wont(TELOPT_SGA))
-		send_will(TELOPT_SGA, 1);
-	/*
-	 * Is the client side a 4.2 (NOT 4.3) system?  We need to know this
-	 * because 4.2 clients are unable to deal with TCP urgent data.
-	 *
-	 * To find out, we send out a "DO ECHO".  If the remote system
-	 * answers "WILL ECHO" it is probably a 4.2 client, and we note
-	 * that fact ("WILL ECHO" ==> that the client will echo what
-	 * WE, the server, sends it; it does NOT mean that the client will
-	 * echo the terminal input).
-	 */
-	send_do(TELOPT_ECHO, 1);
-
-#ifdef	LINEMODE
-	if (his_state_is_wont(TELOPT_LINEMODE)) {
-		/* Query the peer for linemode support by trying to negotiate
-		 * the linemode option.
-		 */
-		linemode = 0;
-		editmode = 0;
-		send_do(TELOPT_LINEMODE, 1);  /* send do linemode */
-	}
-#endif	/* LINEMODE */
-
-	/*
-	 * Send along a couple of other options that we wish to negotiate.
-	 */
-	send_do(TELOPT_NAWS, 1);
-	send_will(TELOPT_STATUS, 1);
-	flowmode = 1;		/* default flow control state */
-	restartany = -1;	/* uninitialized... */
-	send_do(TELOPT_LFLOW, 1);
-
-	/*
-	 * Spin, waiting for a response from the DO ECHO.  However,
-	 * some REALLY DUMB telnets out there might not respond
-	 * to the DO ECHO.  So, we spin looking for NAWS, (most dumb
-	 * telnets so far seem to respond with WONT for a DO that
-	 * they don't understand...) because by the time we get the
-	 * response, it will already have processed the DO ECHO.
-	 * Kludge upon kludge.
-	 */
-	while (his_will_wont_is_changing(TELOPT_NAWS))
-		ttloop();
-
-	/*
-	 * But...
-	 * The client might have sent a WILL NAWS as part of its
-	 * startup code; if so, we'll be here before we get the
-	 * response to the DO ECHO.  We'll make the assumption
-	 * that any implementation that understands about NAWS
-	 * is a modern enough implementation that it will respond
-	 * to our DO ECHO request; hence we'll do another spin
-	 * waiting for the ECHO option to settle down, which is
-	 * what we wanted to do in the first place...
-	 */
-	if (his_want_state_is_will(TELOPT_ECHO) &&
-	    his_state_is_will(TELOPT_NAWS)) {
-		while (his_will_wont_is_changing(TELOPT_ECHO))
-			ttloop();
-	}
-	/*
-	 * On the off chance that the telnet client is broken and does not
-	 * respond to the DO ECHO we sent, (after all, we did send the
-	 * DO NAWS negotiation after the DO ECHO, and we won't get here
-	 * until a response to the DO NAWS comes back) simulate the
-	 * receipt of a will echo.  This will also send a WONT ECHO
-	 * to the client, since we assume that the client failed to
-	 * respond because it believes that it is already in DO ECHO
-	 * mode, which we do not want.
-	 */
-	if (his_want_state_is_will(TELOPT_ECHO)) {
-		DIAG(TD_OPTIONS, output_data("td: simulating recv\r\n"));
-		willoption(TELOPT_ECHO);
-	}
-
-	/*
-	 * Finally, to clean things up, we turn on our echo.  This
-	 * will break stupid 4.2 telnets out of local terminal echo.
-	 */
-
-	if (my_state_is_wont(TELOPT_ECHO))
-		send_will(TELOPT_ECHO, 1);
-
-	/*
-	 * Turn on packet mode
-	 */
-	(void) ioctl(p, TIOCPKT, (char *)&on);
-
-#if	defined(LINEMODE) && defined(KLUDGELINEMODE)
-	/*
-	 * Continuing line mode support.  If client does not support
-	 * real linemode, attempt to negotiate kludge linemode by sending
-	 * the do timing mark sequence.
-	 */
-	if (lmodetype < REAL_LINEMODE)
-		send_do(TELOPT_TM, 1);
-#endif	/* defined(LINEMODE) && defined(KLUDGELINEMODE) */
-
-	/*
-	 * Call telrcv() once to pick up anything received during
-	 * terminal type negotiation, 4.2/4.3 determination, and
-	 * linemode negotiation.
-	 */
-	telrcv();
-
-	(void) ioctl(f, FIONBIO, (char *)&on);
-	(void) ioctl(p, FIONBIO, (char *)&on);
-
-#if	defined(SO_OOBINLINE)
-	(void) setsockopt(net, SOL_SOCKET, SO_OOBINLINE,
-				(char *)&on, sizeof on);
-#endif	/* defined(SO_OOBINLINE) */
-
-#ifdef	SIGTSTP
-	(void) signal(SIGTSTP, SIG_IGN);
-#endif
-#ifdef	SIGTTOU
-	/*
-	 * Ignoring SIGTTOU keeps the kernel from blocking us
-	 * in ttioct() in /sys/tty.c.
-	 */
-	(void) signal(SIGTTOU, SIG_IGN);
-#endif
-
-	(void) signal(SIGCHLD, cleanup);
-
-#ifdef  TIOCNOTTY
-	{
-		int t;
-		t = open(_PATH_TTY, O_RDWR);
-		if (t >= 0) {
-			(void) ioctl(t, TIOCNOTTY, (char *)0);
-			(void) close(t);
-		}
-	}
-#endif
-
-	/*
-	 * Show banner that getty never gave.
-	 *
-	 * We put the banner in the pty input buffer.  This way, it
-	 * gets carriage return null processing, etc., just like all
-	 * other pty --> client data.
-	 */
-
-	if (getent(defent, "default") == 1) {
-		char *cp=defstrs;
-
-		HE = Getstr("he", &cp);
-		HN = Getstr("hn", &cp);
-		IM = Getstr("im", &cp);
-		if (HN && *HN)
-			(void) strlcpy(host_name, HN, sizeof(host_name));
-		if (IM == 0)
-			IM = strdup("");
-	} else {
-		IM = strdup(DEFAULT_IM);
-		HE = 0;
-	}
-	edithost(HE, host_name);
-	if (hostinfo && *IM)
-		putf(IM, ptyibuf2);
-
-	if (pcc)
-		(void) strncat(ptyibuf2, ptyip, pcc+1);
-	ptyip = ptyibuf2;
-	pcc = strlen(ptyip);
-#ifdef	LINEMODE
-	/*
-	 * Last check to make sure all our states are correct.
-	 */
-	init_termbuf();
-	localstat();
-#endif	/* LINEMODE */
-
-	DIAG(TD_REPORT, output_data("td: Entering processing loop\r\n"));
-
-	/*
-	 * Startup the login process on the slave side of the terminal
-	 * now.  We delay this until here to insure option negotiation
-	 * is complete.
-	 */
-	startslave(host, level, user_name);
-
-	nfd = ((f > p) ? f : p) + 1;
-	for (;;) {
-		fd_set ibits, obits, xbits;
-		int c;
-
-		if (ncc < 0 && pcc < 0)
-			break;
-
-		FD_ZERO(&ibits);
-		FD_ZERO(&obits);
-		FD_ZERO(&xbits);
-		/*
-		 * Never look for input if there's still
-		 * stuff in the corresponding output buffer
-		 */
-		if (nfrontp - nbackp || pcc > 0) {
-			FD_SET(f, &obits);
-		} else {
-			FD_SET(p, &ibits);
-		}
-		if (pfrontp - pbackp || ncc > 0) {
-			FD_SET(p, &obits);
-		} else {
-			FD_SET(f, &ibits);
-		}
-		if (!SYNCHing) {
-			FD_SET(f, &xbits);
-		}
-		if ((c = select(nfd, &ibits, &obits, &xbits,
-						(struct timeval *)0)) < 1) {
-			if (c == -1) {
-				if (errno == EINTR) {
-					continue;
-				}
-			}
-			sleep(5);
-			continue;
-		}
-
-		/*
-		 * Any urgent data?
-		 */
-		if (FD_ISSET(net, &xbits)) {
-		    SYNCHing = 1;
-		}
-
-		/*
-		 * Something to read from the network...
-		 */
-		if (FD_ISSET(net, &ibits)) {
-#if	!defined(SO_OOBINLINE)
-			/*
-			 * In 4.2 (and 4.3 beta) systems, the
-			 * OOB indication and data handling in the kernel
-			 * is such that if two separate TCP Urgent requests
-			 * come in, one byte of TCP data will be overlaid.
-			 * This is fatal for Telnet, but we try to live
-			 * with it.
-			 *
-			 * In addition, in 4.2 (and...), a special protocol
-			 * is needed to pick up the TCP Urgent data in
-			 * the correct sequence.
-			 *
-			 * What we do is:  if we think we are in urgent
-			 * mode, we look to see if we are "at the mark".
-			 * If we are, we do an OOB receive.  If we run
-			 * this twice, we will do the OOB receive twice,
-			 * but the second will fail, since the second
-			 * time we were "at the mark", but there wasn't
-			 * any data there (the kernel doesn't reset
-			 * "at the mark" until we do a normal read).
-			 * Once we've read the OOB data, we go ahead
-			 * and do normal reads.
-			 *
-			 * There is also another problem, which is that
-			 * since the OOB byte we read doesn't put us
-			 * out of OOB state, and since that byte is most
-			 * likely the TELNET DM (data mark), we would
-			 * stay in the TELNET SYNCH (SYNCHing) state.
-			 * So, clocks to the rescue.  If we've "just"
-			 * received a DM, then we test for the
-			 * presence of OOB data when the receive OOB
-			 * fails (and AFTER we did the normal mode read
-			 * to clear "at the mark").
-			 */
-		    if (SYNCHing) {
-			int atmark;
-
-			(void) ioctl(net, SIOCATMARK, (char *)&atmark);
-			if (atmark) {
-			    ncc = recv(net, netibuf, sizeof (netibuf), MSG_OOB);
-			    if ((ncc == -1) && (errno == EINVAL)) {
-				ncc = read(net, netibuf, sizeof (netibuf));
-				if (sequenceIs(didnetreceive, gotDM)) {
-				    SYNCHing = stilloob(net);
-				}
-			    }
-			} else {
-			    ncc = read(net, netibuf, sizeof (netibuf));
-			}
-		    } else {
-			ncc = read(net, netibuf, sizeof (netibuf));
-		    }
-		    settimer(didnetreceive);
-#else	/* !defined(SO_OOBINLINE)) */
-		    ncc = read(net, netibuf, sizeof (netibuf));
-#endif	/* !defined(SO_OOBINLINE)) */
-		    if (ncc < 0 && errno == EWOULDBLOCK)
-			ncc = 0;
-		    else {
-			if (ncc <= 0) {
-			    break;
-			}
-			netip = netibuf;
-		    }
-		    DIAG((TD_REPORT | TD_NETDATA),
-			output_data("td: netread %d chars\r\n", ncc));
-		    DIAG(TD_NETDATA, printdata("nd", netip, ncc));
-		}
-
-		/*
-		 * Something to read from the pty...
-		 */
-		if (FD_ISSET(p, &ibits)) {
-			pcc = read(p, ptyibuf, BUFSIZ);
-			/*
-			 * On some systems, if we try to read something
-			 * off the master side before the slave side is
-			 * opened, we get EIO.
-			 */
-			if (pcc < 0 && (errno == EWOULDBLOCK ||
-#ifdef	EAGAIN
-					errno == EAGAIN ||
-#endif
-					errno == EIO)) {
-				pcc = 0;
-			} else {
-				if (pcc <= 0)
-					break;
-#ifdef	LINEMODE
-				/*
-				 * If ioctl from pty, pass it through net
-				 */
-				if (ptyibuf[0] & TIOCPKT_IOCTL) {
-					copy_termbuf(ptyibuf+1, pcc-1);
-					localstat();
-					pcc = 1;
-				}
-#endif	/* LINEMODE */
-				if (ptyibuf[0] & TIOCPKT_FLUSHWRITE) {
-					netclear();	/* clear buffer back */
-#ifndef	NO_URGENT
-					/*
-					 * There are client telnets on some
-					 * operating systems get screwed up
-					 * royally if we send them urgent
-					 * mode data.
-					 */
-					output_data("%c%c", IAC, DM);
-					neturg = nfrontp-1; /* off by one XXX */
-					DIAG(TD_OPTIONS,
-					    printoption("td: send IAC", DM));
-
-#endif
-				}
-				if (his_state_is_will(TELOPT_LFLOW) &&
-				    (ptyibuf[0] &
-				     (TIOCPKT_NOSTOP|TIOCPKT_DOSTOP))) {
-					int newflow =
-					    ptyibuf[0] & TIOCPKT_DOSTOP ? 1 : 0;
-					if (newflow != flowmode) {
-						flowmode = newflow;
-						output_data("%c%c%c%c%c%c",
-							IAC, SB, TELOPT_LFLOW,
-							flowmode ? LFLOW_ON
-								 : LFLOW_OFF,
-							IAC, SE);
-						DIAG(TD_OPTIONS, printsub('>',
-						    (unsigned char *)nfrontp-4,
-						    4););
-					}
-				}
-				pcc--;
-				ptyip = ptyibuf+1;
-			}
-		}
-
-		while (pcc > 0) {
-			if ((&netobuf[BUFSIZ] - nfrontp) < 2)
-				break;
-			c = *ptyip++ & 0377, pcc--;
-			if (c == IAC)
-				output_data("%c", c);
-			output_data("%c", c);
-			if ((c == '\r') && (my_state_is_wont(TELOPT_BINARY))) {
-				if (pcc > 0 && ((*ptyip & 0377) == '\n')) {
-					output_data("%c", *ptyip++ & 0377);
-					pcc--;
-				} else
-					output_data("%c", '\0');
-			}
-		}
-
-		if (FD_ISSET(f, &obits) && (nfrontp - nbackp) > 0)
-			netflush();
-		if (ncc > 0)
-			telrcv();
-		if (FD_ISSET(p, &obits) && (pfrontp - pbackp) > 0)
-			ptyflush();
-	}
-	cleanup(0);
-}  /* end of telnet */
-
-#ifndef	TCSIG
-# ifdef	TIOCSIG
-#  define TCSIG TIOCSIG
-# endif
-#endif
-
-/*
- * Send interrupt to process on other side of pty.
- * If it is in raw mode, just write NULL;
- * otherwise, write intr char.
- */
-void
-interrupt(void)
-{
-	ptyflush();	/* half-hearted */
-
-#ifdef	TCSIG
-	(void) ioctl(pty, TCSIG, (char *)SIGINT);
-#else	/* TCSIG */
-	init_termbuf();
-	*pfrontp++ = slctab[SLC_IP].sptr ?
-			(unsigned char)*slctab[SLC_IP].sptr : '\177';
-#endif	/* TCSIG */
-}
-
-/*
- * Send quit to process on other side of pty.
- * If it is in raw mode, just write NULL;
- * otherwise, write quit char.
- */
-void
-sendbrk(void)
-{
-	ptyflush();	/* half-hearted */
-#ifdef	TCSIG
-	(void) ioctl(pty, TCSIG, (char *)SIGQUIT);
-#else	/* TCSIG */
-	init_termbuf();
-	*pfrontp++ = slctab[SLC_ABORT].sptr ?
-			(unsigned char)*slctab[SLC_ABORT].sptr : '\034';
-#endif	/* TCSIG */
-}
-
-void
-sendsusp(void)
-{
-#ifdef	SIGTSTP
-	ptyflush();	/* half-hearted */
-# ifdef	TCSIG
-	(void) ioctl(pty, TCSIG, (char *)SIGTSTP);
-# else	/* TCSIG */
-	*pfrontp++ = slctab[SLC_SUSP].sptr ?
-			(unsigned char)*slctab[SLC_SUSP].sptr : '\032';
-# endif	/* TCSIG */
-#endif	/* SIGTSTP */
-}
-
-/*
- * When we get an AYT, if ^T is enabled, use that.  Otherwise,
- * just send back "[Yes]".
- */
-void
-recv_ayt(void)
-{
-#if	defined(SIGINFO) && defined(TCSIG)
-	if (slctab[SLC_AYT].sptr && *slctab[SLC_AYT].sptr != _POSIX_VDISABLE) {
-		(void) ioctl(pty, TCSIG, (char *)SIGINFO);
-		return;
-	}
-#endif
-	output_data("\r\n[Yes]\r\n");
-}
-
-void
-doeof(void)
-{
-	init_termbuf();
-
-#if	defined(LINEMODE) && defined(USE_TERMIO) && (VEOF == VMIN)
-	if (!tty_isediting()) {
-		extern char oldeofc;
-		*pfrontp++ = oldeofc;
-		return;
-	}
-#endif
-	*pfrontp++ = slctab[SLC_EOF].sptr ?
-			(unsigned char)*slctab[SLC_EOF].sptr : '\004';
-}
diff --git a/libexec/telnetd/telnetd.h b/libexec/telnetd/telnetd.h
deleted file mode 100644
index 5bfc572f518d..000000000000
--- a/libexec/telnetd/telnetd.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)telnetd.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-
-#include "defs.h"
-#include "ext.h"
-
-#ifdef	DIAGNOSTICS
-#define	DIAG(a,b)	if (diagnostic & (a)) b
-#else
-#define	DIAG(a,b)
-#endif
-
-/* other external variables */
-extern	char **environ;
-extern	const char *altlogin;
diff --git a/libexec/telnetd/termstat.c b/libexec/telnetd/termstat.c
deleted file mode 100644
index 8d8257d0f6df..000000000000
--- a/libexec/telnetd/termstat.c
+++ /dev/null
@@ -1,610 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)termstat.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "telnetd.h"
-
-
-/*
- * local variables
- */
-int def_tspeed = -1, def_rspeed = -1;
-#ifdef	TIOCSWINSZ
-int def_row = 0, def_col = 0;
-#endif
-#ifdef	LINEMODE
-static int _terminit = 0;
-#endif	/* LINEMODE */
-
-#ifdef	LINEMODE
-/*
- * localstat
- *
- * This function handles all management of linemode.
- *
- * Linemode allows the client to do the local editing of data
- * and send only complete lines to the server.  Linemode state is
- * based on the state of the pty driver.  If the pty is set for
- * external processing, then we can use linemode.  Further, if we
- * can use real linemode, then we can look at the edit control bits
- * in the pty to determine what editing the client should do.
- *
- * Linemode support uses the following state flags to keep track of
- * current and desired linemode state.
- *	alwayslinemode : true if -l was specified on the telnetd
- * 	command line.  It means to have linemode on as much as
- *	possible.
- *
- * 	lmodetype: signifies whether the client can
- *	handle real linemode, or if use of kludgeomatic linemode
- *	is preferred.  It will be set to one of the following:
- *		REAL_LINEMODE : use linemode option
- *		NO_KLUDGE : don't initiate kludge linemode.
- *		KLUDGE_LINEMODE : use kludge linemode
- *		NO_LINEMODE : client is ignorant of linemode
- *
- *	linemode, uselinemode : linemode is true if linemode
- *	is currently on, uselinemode is the state that we wish
- *	to be in.  If another function wishes to turn linemode
- *	on or off, it sets or clears uselinemode.
- *
- *	editmode, useeditmode : like linemode/uselinemode, but
- *	these contain the edit mode states (edit and trapsig).
- *
- * The state variables correspond to some of the state information
- * in the pty.
- *	linemode:
- *		In real linemode, this corresponds to whether the pty
- *		expects external processing of incoming data.
- *		In kludge linemode, this more closely corresponds to the
- *		whether normal processing is on or not.  (ICANON in
- *		system V, or COOKED mode in BSD.)
- *		If the -l option was specified (alwayslinemode), then
- *		an attempt is made to force external processing on at
- *		all times.
- *
- * The following heuristics are applied to determine linemode
- * handling within the server.
- *	1) Early on in starting up the server, an attempt is made
- *	   to negotiate the linemode option.  If this succeeds
- *	   then lmodetype is set to REAL_LINEMODE and all linemode
- *	   processing occurs in the context of the linemode option.
- *	2) If the attempt to negotiate the linemode option failed,
- *	   and the "-k" (don't initiate kludge linemode) isn't set,
- *	   then we try to use kludge linemode.  We test for this
- *	   capability by sending "do Timing Mark".  If a positive
- *	   response comes back, then we assume that the client
- *	   understands kludge linemode (ech!) and the
- *	   lmodetype flag is set to KLUDGE_LINEMODE.
- *	3) Otherwise, linemode is not supported at all and
- *	   lmodetype remains set to NO_LINEMODE (which happens
- *	   to be 0 for convenience).
- *	4) At any time a command arrives that implies a higher
- *	   state of linemode support in the client, we move to that
- *	   linemode support.
- *
- * A short explanation of kludge linemode is in order here.
- *	1) The heuristic to determine support for kludge linemode
- *	   is to send a do timing mark.  We assume that a client
- *	   that supports timing marks also supports kludge linemode.
- *	   A risky proposition at best.
- *	2) Further negotiation of linemode is done by changing the
- *	   the server's state regarding SGA.  If server will SGA,
- *	   then linemode is off, if server won't SGA, then linemode
- *	   is on.
- */
-void
-localstat(void)
-{
-	int need_will_echo = 0;
-
-	/*
-	 * Check for changes to flow control if client supports it.
-	 */
-	flowstat();
-
-	/*
-	 * Check linemode on/off state
-	 */
-	uselinemode = tty_linemode();
-
-	/*
-	 * If alwayslinemode is on, and pty is changing to turn it off, then
-	 * force linemode back on.
-	 */
-	if (alwayslinemode && linemode && !uselinemode) {
-		uselinemode = 1;
-		tty_setlinemode(uselinemode);
-	}
-
-	if (uselinemode) {
-		/*
-		 * Check for state of BINARY options.
-		 *
-		 * We only need to do the binary dance if we are actually going
-		 * to use linemode.  As this confuses some telnet clients
-		 * that don't support linemode, and doesn't gain us
-		 * anything, we don't do it unless we're doing linemode.
-		 * -Crh (henrich@msu.edu)
-		 */
-
-		if (tty_isbinaryin()) {
-			if (his_want_state_is_wont(TELOPT_BINARY))
-				send_do(TELOPT_BINARY, 1);
-		} else {
-			if (his_want_state_is_will(TELOPT_BINARY))
-				send_dont(TELOPT_BINARY, 1);
-		}
-
-		if (tty_isbinaryout()) {
-			if (my_want_state_is_wont(TELOPT_BINARY))
-				send_will(TELOPT_BINARY, 1);
-		} else {
-			if (my_want_state_is_will(TELOPT_BINARY))
-				send_wont(TELOPT_BINARY, 1);
-		}
-	}
-
-
-	/*
-	 * Do echo mode handling as soon as we know what the
-	 * linemode is going to be.
-	 * If the pty has echo turned off, then tell the client that
-	 * the server will echo.  If echo is on, then the server
-	 * will echo if in character mode, but in linemode the
-	 * client should do local echoing.  The state machine will
-	 * not send anything if it is unnecessary, so don't worry
-	 * about that here.
-	 *
-	 * If we need to send the WILL ECHO (because echo is off),
-	 * then delay that until after we have changed the MODE.
-	 * This way, when the user is turning off both editing
-	 * and echo, the client will get editing turned off first.
-	 * This keeps the client from going into encryption mode
-	 * and then right back out if it is doing auto-encryption
-	 * when passwords are being typed.
-	 */
-	if (uselinemode) {
-		if (tty_isecho())
-			send_wont(TELOPT_ECHO, 1);
-		else
-			need_will_echo = 1;
-#ifdef	KLUDGELINEMODE
-		if (lmodetype == KLUDGE_OK)
-			lmodetype = KLUDGE_LINEMODE;
-#endif
-	}
-
-	/*
-	 * If linemode is being turned off, send appropriate
-	 * command and then we're all done.
-	 */
-	 if (!uselinemode && linemode) {
-# ifdef	KLUDGELINEMODE
-		if (lmodetype == REAL_LINEMODE) {
-# endif	/* KLUDGELINEMODE */
-			send_dont(TELOPT_LINEMODE, 1);
-# ifdef	KLUDGELINEMODE
-		} else if (lmodetype == KLUDGE_LINEMODE)
-			send_will(TELOPT_SGA, 1);
-# endif	/* KLUDGELINEMODE */
-		send_will(TELOPT_ECHO, 1);
-		linemode = uselinemode;
-		goto done;
-	}
-
-# ifdef	KLUDGELINEMODE
-	/*
-	 * If using real linemode check edit modes for possible later use.
-	 * If we are in kludge linemode, do the SGA negotiation.
-	 */
-	if (lmodetype == REAL_LINEMODE) {
-# endif	/* KLUDGELINEMODE */
-		useeditmode = 0;
-		if (tty_isediting())
-			useeditmode |= MODE_EDIT;
-		if (tty_istrapsig())
-			useeditmode |= MODE_TRAPSIG;
-		if (tty_issofttab())
-			useeditmode |= MODE_SOFT_TAB;
-		if (tty_islitecho())
-			useeditmode |= MODE_LIT_ECHO;
-# ifdef	KLUDGELINEMODE
-	} else if (lmodetype == KLUDGE_LINEMODE) {
-		if (tty_isediting() && uselinemode)
-			send_wont(TELOPT_SGA, 1);
-		else
-			send_will(TELOPT_SGA, 1);
-	}
-# endif	/* KLUDGELINEMODE */
-
-	/*
-	 * Negotiate linemode on if pty state has changed to turn it on.
-	 * Send appropriate command and send along edit mode, then all done.
-	 */
-	if (uselinemode && !linemode) {
-# ifdef	KLUDGELINEMODE
-		if (lmodetype == KLUDGE_LINEMODE) {
-			send_wont(TELOPT_SGA, 1);
-		} else if (lmodetype == REAL_LINEMODE) {
-# endif	/* KLUDGELINEMODE */
-			send_do(TELOPT_LINEMODE, 1);
-			/* send along edit modes */
-			output_data("%c%c%c%c%c%c%c", IAC, SB,
-				TELOPT_LINEMODE, LM_MODE, useeditmode,
-				IAC, SE);
-			editmode = useeditmode;
-# ifdef	KLUDGELINEMODE
-		}
-# endif	/* KLUDGELINEMODE */
-		linemode = uselinemode;
-		goto done;
-	}
-
-# ifdef	KLUDGELINEMODE
-	/*
-	 * None of what follows is of any value if not using
-	 * real linemode.
-	 */
-	if (lmodetype < REAL_LINEMODE)
-		goto done;
-# endif	/* KLUDGELINEMODE */
-
-	if (linemode && his_state_is_will(TELOPT_LINEMODE)) {
-		/*
-		 * If edit mode changed, send edit mode.
-		 */
-		 if (useeditmode != editmode) {
-			/*
-			 * Send along appropriate edit mode mask.
-			 */
-			output_data("%c%c%c%c%c%c%c", IAC, SB,
-				TELOPT_LINEMODE, LM_MODE, useeditmode,
-				IAC, SE);
-			editmode = useeditmode;
-		}
-
-
-		/*
-		 * Check for changes to special characters in use.
-		 */
-		start_slc(0);
-		check_slc();
-		(void) end_slc(0);
-	}
-
-done:
-	if (need_will_echo)
-		send_will(TELOPT_ECHO, 1);
-	/*
-	 * Some things should be deferred until after the pty state has
-	 * been set by the local process.  Do those things that have been
-	 * deferred now.  This only happens once.
-	 */
-	if (_terminit == 0) {
-		_terminit = 1;
-		defer_terminit();
-	}
-
-	netflush();
-	set_termbuf();
-	return;
-
-}  /* end of localstat */
-#endif	/* LINEMODE */
-
-/*
- * flowstat
- *
- * Check for changes to flow control
- */
-void
-flowstat(void)
-{
-	if (his_state_is_will(TELOPT_LFLOW)) {
-		if (tty_flowmode() != flowmode) {
-			flowmode = tty_flowmode();
-			output_data("%c%c%c%c%c%c",
-					IAC, SB, TELOPT_LFLOW,
-					flowmode ? LFLOW_ON : LFLOW_OFF,
-					IAC, SE);
-		}
-		if (tty_restartany() != restartany) {
-			restartany = tty_restartany();
-			output_data("%c%c%c%c%c%c",
-					IAC, SB, TELOPT_LFLOW,
-					restartany ? LFLOW_RESTART_ANY
-						   : LFLOW_RESTART_XON,
-					IAC, SE);
-		}
-	}
-}
-
-/*
- * clientstat
- *
- * Process linemode related requests from the client.
- * Client can request a change to only one of linemode, editmode or slc's
- * at a time, and if using kludge linemode, then only linemode may be
- * affected.
- */
-void
-clientstat(int code, int parm1, int parm2)
-{
-
-	/*
-	 * Get a copy of terminal characteristics.
-	 */
-	init_termbuf();
-
-	/*
-	 * Process request from client. code tells what it is.
-	 */
-	switch (code) {
-#ifdef	LINEMODE
-	case TELOPT_LINEMODE:
-		/*
-		 * Don't do anything unless client is asking us to change
-		 * modes.
-		 */
-		uselinemode = (parm1 == WILL);
-		if (uselinemode != linemode) {
-# ifdef	KLUDGELINEMODE
-			/*
-			 * If using kludge linemode, make sure that
-			 * we can do what the client asks.
-			 * We can not turn off linemode if alwayslinemode
-			 * and the ICANON bit is set.
-			 */
-			if (lmodetype == KLUDGE_LINEMODE) {
-				if (alwayslinemode && tty_isediting()) {
-					uselinemode = 1;
-				}
-			}
-
-			/*
-			 * Quit now if we can't do it.
-			 */
-			if (uselinemode == linemode)
-				return;
-
-			/*
-			 * If using real linemode and linemode is being
-			 * turned on, send along the edit mode mask.
-			 */
-			if (lmodetype == REAL_LINEMODE && uselinemode)
-# else	/* KLUDGELINEMODE */
-			if (uselinemode)
-# endif	/* KLUDGELINEMODE */
-			{
-				useeditmode = 0;
-				if (tty_isediting())
-					useeditmode |= MODE_EDIT;
-				if (tty_istrapsig)
-					useeditmode |= MODE_TRAPSIG;
-				if (tty_issofttab())
-					useeditmode |= MODE_SOFT_TAB;
-				if (tty_islitecho())
-					useeditmode |= MODE_LIT_ECHO;
-				output_data("%c%c%c%c%c%c%c", IAC,
-					SB, TELOPT_LINEMODE, LM_MODE,
-							useeditmode, IAC, SE);
-				editmode = useeditmode;
-			}
-
-
-			tty_setlinemode(uselinemode);
-
-			linemode = uselinemode;
-
-			if (!linemode)
-				send_will(TELOPT_ECHO, 1);
-		}
-		break;
-
-	case LM_MODE:
-	    {
-		int ack, changed;
-
-		/*
-		 * Client has sent along a mode mask.  If it agrees with
-		 * what we are currently doing, ignore it; if not, it could
-		 * be viewed as a request to change.  Note that the server
-		 * will change to the modes in an ack if it is different from
-		 * what we currently have, but we will not ack the ack.
-		 */
-		 useeditmode &= MODE_MASK;
-		 ack = (useeditmode & MODE_ACK);
-		 useeditmode &= ~MODE_ACK;
-
-		 if ((changed = (useeditmode ^ editmode))) {
-			/*
-			 * This check is for a timing problem.  If the
-			 * state of the tty has changed (due to the user
-			 * application) we need to process that info
-			 * before we write in the state contained in the
-			 * ack!!!  This gets out the new MODE request,
-			 * and when the ack to that command comes back
-			 * we'll set it and be in the right mode.
-			 */
-			if (ack)
-				localstat();
-			if (changed & MODE_EDIT)
-				tty_setedit(useeditmode & MODE_EDIT);
-
-			if (changed & MODE_TRAPSIG)
-				tty_setsig(useeditmode & MODE_TRAPSIG);
-
-			if (changed & MODE_SOFT_TAB)
-				tty_setsofttab(useeditmode & MODE_SOFT_TAB);
-
-			if (changed & MODE_LIT_ECHO)
-				tty_setlitecho(useeditmode & MODE_LIT_ECHO);
-
-			set_termbuf();
-
- 			if (!ack) {
-				output_data("%c%c%c%c%c%c%c", IAC,
-					SB, TELOPT_LINEMODE, LM_MODE,
- 					useeditmode|MODE_ACK,
- 					IAC, SE);
- 			}
-
-			editmode = useeditmode;
-		}
-
-		break;
-
-	    }  /* end of case LM_MODE */
-#endif	/* LINEMODE */
-
-	case TELOPT_NAWS:
-#ifdef	TIOCSWINSZ
-	    {
-		struct winsize ws;
-
-		def_col = parm1;
-		def_row = parm2;
-#ifdef	LINEMODE
-		/*
-		 * Defer changing window size until after terminal is
-		 * initialized.
-		 */
-		if (terminit() == 0)
-			return;
-#endif	/* LINEMODE */
-
-		/*
-		 * Change window size as requested by client.
-		 */
-
-		ws.ws_col = parm1;
-		ws.ws_row = parm2;
-		(void) ioctl(pty, TIOCSWINSZ, (char *)&ws);
-	    }
-#endif	/* TIOCSWINSZ */
-
-		break;
-
-	case TELOPT_TSPEED:
-	    {
-		def_tspeed = parm1;
-		def_rspeed = parm2;
-#ifdef	LINEMODE
-		/*
-		 * Defer changing the terminal speed.
-		 */
-		if (terminit() == 0)
-			return;
-#endif	/* LINEMODE */
-		/*
-		 * Change terminal speed as requested by client.
-		 * We set the receive speed first, so that if we can't
-		 * store separate receive and transmit speeds, the transmit
-		 * speed will take precedence.
-		 */
-		tty_rspeed(parm2);
-		tty_tspeed(parm1);
-		set_termbuf();
-
-		break;
-
-	    }  /* end of case TELOPT_TSPEED */
-
-	default:
-		/* What? */
-		break;
-	}  /* end of switch */
-
-	netflush();
-
-}  /* end of clientstat */
-
-#ifdef	LINEMODE
-/*
- * defer_terminit
- *
- * Some things should not be done until after the login process has started
- * and all the pty modes are set to what they are supposed to be.  This
- * function is called when the pty state has been processed for the first time.
- * It calls other functions that do things that were deferred in each module.
- */
-void
-defer_terminit(void)
-{
-
-	/*
-	 * local stuff that got deferred.
-	 */
-	if (def_tspeed != -1) {
-		clientstat(TELOPT_TSPEED, def_tspeed, def_rspeed);
-		def_tspeed = def_rspeed = 0;
-	}
-
-#ifdef	TIOCSWINSZ
-	if (def_col || def_row) {
-		struct winsize ws;
-
-		memset((char *)&ws, 0, sizeof(ws));
-		ws.ws_col = def_col;
-		ws.ws_row = def_row;
-		(void) ioctl(pty, TIOCSWINSZ, (char *)&ws);
-	}
-#endif
-
-	/*
-	 * The only other module that currently defers anything.
-	 */
-	deferslc();
-
-}  /* end of defer_terminit */
-
-/*
- * terminit
- *
- * Returns true if the pty state has been processed yet.
- */
-int
-terminit(void)
-{
-	return(_terminit);
-
-}  /* end of terminit */
-#endif	/* LINEMODE */
diff --git a/libexec/telnetd/utility.c b/libexec/telnetd/utility.c
deleted file mode 100644
index 042b248bd79c..000000000000
--- a/libexec/telnetd/utility.c
+++ /dev/null
@@ -1,900 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)utility.c	8.4 (Berkeley) 5/30/95";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifdef __FreeBSD__
-#include <locale.h>
-#include <sys/utsname.h>
-#endif
-#include <string.h>
-#define PRINTOPTIONS
-#include "telnetd.h"
-
-
-/*
- * utility functions performing io related tasks
- */
-
-/*
- * ttloop
- *
- *	A small subroutine to flush the network output buffer, get some data
- * from the network, and pass it through the telnet state machine.  We
- * also flush the pty input buffer (by dropping its data) if it becomes
- * too full.
- */
-
-    void
-ttloop()
-{
-
-    DIAG(TD_REPORT, output_data("td: ttloop\r\n"));
-    if (nfrontp - nbackp > 0) {
-	netflush();
-    }
-    ncc = read(net, netibuf, sizeof netibuf);
-    if (ncc < 0) {
-	syslog(LOG_INFO, "ttloop:  read: %m");
-	exit(1);
-    } else if (ncc == 0) {
-	syslog(LOG_INFO, "ttloop:  peer died: %m");
-	exit(1);
-    }
-    DIAG(TD_REPORT, output_data("td: ttloop read %d chars\r\n", ncc));
-    netip = netibuf;
-    telrcv();			/* state machine */
-    if (ncc > 0) {
-	pfrontp = pbackp = ptyobuf;
-	telrcv();
-    }
-}  /* end of ttloop */
-
-/*
- * Check a descriptor to see if out of band data exists on it.
- */
-int
-stilloob(int s)
-{
-    static struct timeval timeout = { 0, 0 };
-    fd_set	excepts;
-    int value;
-
-    do {
-	FD_ZERO(&excepts);
-	FD_SET(s, &excepts);
-	memset((char *)&timeout, 0, sizeof timeout);
-	value = select(s+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout);
-    } while ((value == -1) && (errno == EINTR));
-
-    if (value < 0) {
-	fatalperror(pty, "select");
-    }
-    if (FD_ISSET(s, &excepts)) {
-	return 1;
-    } else {
-	return 0;
-    }
-}
-
-void
-ptyflush(void)
-{
-	int n;
-
-	if ((n = pfrontp - pbackp) > 0) {
-		DIAG(TD_REPORT | TD_PTYDATA,
-		    output_data("td: ptyflush %d chars\r\n", n));
-		DIAG(TD_PTYDATA, printdata("pd", pbackp, n));
-		n = write(pty, pbackp, n);
-	}
-	if (n < 0) {
-		if (errno == EWOULDBLOCK || errno == EINTR)
-			return;
-		cleanup(0);
-	}
-	pbackp += n;
-	if (pbackp == pfrontp)
-		pbackp = pfrontp = ptyobuf;
-}
-
-/*
- * nextitem()
- *
- *	Return the address of the next "item" in the TELNET data
- * stream.  This will be the address of the next character if
- * the current address is a user data character, or it will
- * be the address of the character following the TELNET command
- * if the current address is a TELNET IAC ("I Am a Command")
- * character.
- */
-static char *
-nextitem(char *current)
-{
-    if ((*current&0xff) != IAC) {
-	return current+1;
-    }
-    switch (*(current+1)&0xff) {
-    case DO:
-    case DONT:
-    case WILL:
-    case WONT:
-	return current+3;
-    case SB:		/* loop forever looking for the SE */
-	{
-	    char *look = current+2;
-
-	    for (;;) {
-		if ((*look++&0xff) == IAC) {
-		    if ((*look++&0xff) == SE) {
-			return look;
-		    }
-		}
-	    }
-	}
-    default:
-	return current+2;
-    }
-}  /* end of nextitem */
-
-/*
- * netclear()
- *
- *	We are about to do a TELNET SYNCH operation.  Clear
- * the path to the network.
- *
- *	Things are a bit tricky since we may have sent the first
- * byte or so of a previous TELNET command into the network.
- * So, we have to scan the network buffer from the beginning
- * until we are up to where we want to be.
- *
- *	A side effect of what we do, just to keep things
- * simple, is to clear the urgent data pointer.  The principal
- * caller should be setting the urgent data pointer AFTER calling
- * us in any case.
- */
-void
-netclear(void)
-{
-    char *thisitem, *next;
-    char *good;
-#define	wewant(p)	((nfrontp > p) && ((*p&0xff) == IAC) && \
-				((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL))
-
-    thisitem = netobuf;
-
-    while ((next = nextitem(thisitem)) <= nbackp) {
-	thisitem = next;
-    }
-
-    /* Now, thisitem is first before/at boundary. */
-
-    good = netobuf;	/* where the good bytes go */
-
-    while (nfrontp > thisitem) {
-	if (wewant(thisitem)) {
-	    int length;
-
-	    next = thisitem;
-	    do {
-		next = nextitem(next);
-	    } while (wewant(next) && (nfrontp > next));
-	    length = next-thisitem;
-	    memmove(good, thisitem, length);
-	    good += length;
-	    thisitem = next;
-	} else {
-	    thisitem = nextitem(thisitem);
-	}
-    }
-
-    nbackp = netobuf;
-    nfrontp = good;		/* next byte to be sent */
-    neturg = 0;
-}  /* end of netclear */
-
-/*
- *  netflush
- *		Send as much data as possible to the network,
- *	handling requests for urgent data.
- */
-void
-netflush(void)
-{
-    int n;
-    extern int not42;
-
-    while ((n = nfrontp - nbackp) > 0) {
-#if 0
-	/* XXX This causes output_data() to recurse and die */
-	DIAG(TD_REPORT, {
-	    n += output_data("td: netflush %d chars\r\n", n);
-	});
-#endif
-	/*
-	 * if no urgent data, or if the other side appears to be an
-	 * old 4.2 client (and thus unable to survive TCP urgent data),
-	 * write the entire buffer in non-OOB mode.
-	 */
-	if ((neturg == 0) || (not42 == 0)) {
-	    n = write(net, nbackp, n);	/* normal write */
-	} else {
-	    n = neturg - nbackp;
-	    /*
-	     * In 4.2 (and 4.3) systems, there is some question about
-	     * what byte in a sendOOB operation is the "OOB" data.
-	     * To make ourselves compatible, we only send ONE byte
-	     * out of band, the one WE THINK should be OOB (though
-	     * we really have more the TCP philosophy of urgent data
-	     * rather than the Unix philosophy of OOB data).
-	     */
-	    if (n > 1) {
-		n = send(net, nbackp, n-1, 0);	/* send URGENT all by itself */
-	    } else {
-		n = send(net, nbackp, n, MSG_OOB);	/* URGENT data */
-	    }
-	}
-	if (n == -1) {
-	    if (errno == EWOULDBLOCK || errno == EINTR)
-		continue;
-	    cleanup(0);
-	    /* NOTREACHED */
-	}
-	nbackp += n;
-	if (nbackp >= neturg) {
-	    neturg = 0;
-	}
-	if (nbackp == nfrontp) {
-	    nbackp = nfrontp = netobuf;
-	}
-    }
-    return;
-}  /* end of netflush */
-
-
-/*
- * miscellaneous functions doing a variety of little jobs follow ...
- */
-
-
-void
-fatal(int f, const char *msg)
-{
-	char buf[BUFSIZ];
-
-	(void) snprintf(buf, sizeof(buf), "telnetd: %s.\r\n", msg);
-	(void) write(f, buf, (int)strlen(buf));
-	sleep(1);	/*XXX*/
-	exit(1);
-}
-
-void
-fatalperror(int f, const char *msg)
-{
-	char buf[BUFSIZ];
-
-	(void) snprintf(buf, sizeof(buf), "%s: %s", msg, strerror(errno));
-	fatal(f, buf);
-}
-
-char editedhost[32];
-
-void
-edithost(char *pat, char *host)
-{
-	char *res = editedhost;
-
-	if (!pat)
-		pat = strdup("");
-	while (*pat) {
-		switch (*pat) {
-
-		case '#':
-			if (*host)
-				host++;
-			break;
-
-		case '@':
-			if (*host)
-				*res++ = *host++;
-			break;
-
-		default:
-			*res++ = *pat;
-			break;
-		}
-		if (res == &editedhost[sizeof editedhost - 1]) {
-			*res = '\0';
-			return;
-		}
-		pat++;
-	}
-	if (*host)
-		(void) strncpy(res, host,
-				sizeof editedhost - (res - editedhost) -1);
-	else
-		*res = '\0';
-	editedhost[sizeof editedhost - 1] = '\0';
-}
-
-static char *putlocation;
-
-static void
-putstr(const char *s)
-{
-
-	while (*s)
-		putchr(*s++);
-}
-
-void
-putchr(int cc)
-{
-	*putlocation++ = cc;
-}
-
-#ifdef __FreeBSD__
-static char fmtstr[] = { "%+" };
-#else
-static char fmtstr[] = { "%l:%M%P on %A, %d %B %Y" };
-#endif
-
-void
-putf(char *cp, char *where)
-{
-	char *slash;
-	time_t t;
-	char db[100];
-#ifdef __FreeBSD__
-	static struct utsname kerninfo;
-
-	if (!*kerninfo.sysname)
-		uname(&kerninfo);
-#endif
-
-	putlocation = where;
-
-	while (*cp) {
-		if (*cp =='\n') {
-			putstr("\r\n");
-			cp++;
-			continue;
-		} else if (*cp != '%') {
-			putchr(*cp++);
-			continue;
-		}
-		switch (*++cp) {
-
-		case 't':
-#ifdef	STREAMSPTY
-			/* names are like /dev/pts/2 -- we want pts/2 */
-			slash = strchr(line+1, '/');
-#else
-			slash = strrchr(line, '/');
-#endif
-			if (slash == (char *) 0)
-				putstr(line);
-			else
-				putstr(&slash[1]);
-			break;
-
-		case 'h':
-			putstr(editedhost);
-			break;
-
-		case 'd':
-#ifdef __FreeBSD__
-			setlocale(LC_TIME, "");
-#endif
-			(void)time(&t);
-			(void)strftime(db, sizeof(db), fmtstr, localtime(&t));
-			putstr(db);
-			break;
-
-#ifdef __FreeBSD__
-		case 's':
-			putstr(kerninfo.sysname);
-			break;
-
-		case 'm':
-			putstr(kerninfo.machine);
-			break;
-
-		case 'r':
-			putstr(kerninfo.release);
-			break;
-
-		case 'v':
-			putstr(kerninfo.version);
-			break;
-#endif
-
-		case '%':
-			putchr('%');
-			break;
-		}
-		cp++;
-	}
-}
-
-#ifdef DIAGNOSTICS
-/*
- * Print telnet options and commands in plain text, if possible.
- */
-void
-printoption(const char *fmt, int option)
-{
-	if (TELOPT_OK(option))
-		output_data("%s %s\r\n", fmt, TELOPT(option));
-	else if (TELCMD_OK(option))
-		output_data("%s %s\r\n", fmt, TELCMD(option));
-	else
-		output_data("%s %d\r\n", fmt, option);
-	return;
-}
-
-void
-printsub(char direction, unsigned char *pointer, int length)
-{
-    int i = 0;
-
-	if (!(diagnostic & TD_OPTIONS))
-		return;
-
-	if (direction) {
-	    output_data("td: %s suboption ",
-					direction == '<' ? "recv" : "send");
-	    if (length >= 3) {
-		int j;
-
-		i = pointer[length-2];
-		j = pointer[length-1];
-
-		if (i != IAC || j != SE) {
-		    output_data("(terminated by ");
-		    if (TELOPT_OK(i))
-			output_data("%s ", TELOPT(i));
-		    else if (TELCMD_OK(i))
-			output_data("%s ", TELCMD(i));
-		    else
-			output_data("%d ", i);
-		    if (TELOPT_OK(j))
-			output_data("%s", TELOPT(j));
-		    else if (TELCMD_OK(j))
-			output_data("%s", TELCMD(j));
-		    else
-			output_data("%d", j);
-		    output_data(", not IAC SE!) ");
-		}
-	    }
-	    length -= 2;
-	}
-	if (length < 1) {
-	    output_data("(Empty suboption??\?)");
-	    return;
-	}
-	switch (pointer[0]) {
-	case TELOPT_TTYPE:
-	    output_data("TERMINAL-TYPE ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data("IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		output_data("SEND");
-		break;
-	    default:
-		output_data(
-				"- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-	case TELOPT_TSPEED:
-	    output_data("TERMINAL-SPEED");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data(" IS %.*s", length-2, (char *)pointer+2);
-		break;
-	    default:
-		if (pointer[1] == 1)
-		    output_data(" SEND");
-		else
-		    output_data(" %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++) {
-		    output_data(" ?%d?", pointer[i]);
-		}
-		break;
-	    }
-	    break;
-
-	case TELOPT_LFLOW:
-	    output_data("TOGGLE-FLOW-CONTROL");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case LFLOW_OFF:
-		output_data(" OFF"); break;
-	    case LFLOW_ON:
-		output_data(" ON"); break;
-	    case LFLOW_RESTART_ANY:
-		output_data(" RESTART-ANY"); break;
-	    case LFLOW_RESTART_XON:
-		output_data(" RESTART-XON"); break;
-	    default:
-		output_data(" %d (unknown)", pointer[1]);
-	    }
-	    for (i = 2; i < length; i++) {
-		output_data(" ?%d?", pointer[i]);
-	    }
-	    break;
-
-	case TELOPT_NAWS:
-	    output_data("NAWS");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    if (length == 2) {
-		output_data(" ?%d?", pointer[1]);
-		break;
-	    }
-	    output_data(" %d %d (%d)",
-		pointer[1], pointer[2],
-		(int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
-	    if (length == 4) {
-		output_data(" ?%d?", pointer[3]);
-		break;
-	    }
-	    output_data(" %d %d (%d)",
-		pointer[3], pointer[4],
-		(int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
-	    for (i = 5; i < length; i++) {
-		output_data(" ?%d?", pointer[i]);
-	    }
-	    break;
-
-	case TELOPT_LINEMODE:
-	    output_data("LINEMODE ");
-	    if (length < 2) {
-		output_data(" (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case WILL:
-		output_data("WILL ");
-		goto common;
-	    case WONT:
-		output_data("WONT ");
-		goto common;
-	    case DO:
-		output_data("DO ");
-		goto common;
-	    case DONT:
-		output_data("DONT ");
-	    common:
-		if (length < 3) {
-		    output_data("(no option??\?)");
-		    break;
-		}
-		switch (pointer[2]) {
-		case LM_FORWARDMASK:
-		    output_data("Forward Mask");
-		    for (i = 3; i < length; i++) {
-			output_data(" %x", pointer[i]);
-		    }
-		    break;
-		default:
-		    output_data("%d (unknown)", pointer[2]);
-		    for (i = 3; i < length; i++) {
-			output_data(" %d", pointer[i]);
-		    }
-		    break;
-		}
-		break;
-
-	    case LM_SLC:
-		output_data("SLC");
-		for (i = 2; i < length - 2; i += 3) {
-		    if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
-			output_data(" %s", SLC_NAME(pointer[i+SLC_FUNC]));
-		    else
-			output_data(" %d", pointer[i+SLC_FUNC]);
-		    switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
-		    case SLC_NOSUPPORT:
-			output_data(" NOSUPPORT"); break;
-		    case SLC_CANTCHANGE:
-			output_data(" CANTCHANGE"); break;
-		    case SLC_VARIABLE:
-			output_data(" VARIABLE"); break;
-		    case SLC_DEFAULT:
-			output_data(" DEFAULT"); break;
-		    }
-		    output_data("%s%s%s",
-			pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
-		    if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
-						SLC_FLUSHOUT| SLC_LEVELBITS)) {
-			output_data("(0x%x)", pointer[i+SLC_FLAGS]);
-		    }
-		    output_data(" %d;", pointer[i+SLC_VALUE]);
-		    if ((pointer[i+SLC_VALUE] == IAC) &&
-			(pointer[i+SLC_VALUE+1] == IAC))
-				i++;
-		}
-		for (; i < length; i++) {
-		    output_data(" ?%d?", pointer[i]);
-		}
-		break;
-
-	    case LM_MODE:
-		output_data("MODE ");
-		if (length < 3) {
-		    output_data("(no mode??\?)");
-		    break;
-		}
-		{
-		    char tbuf[32];
-		    sprintf(tbuf, "%s%s%s%s%s",
-			pointer[2]&MODE_EDIT ? "|EDIT" : "",
-			pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
-			pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
-			pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
-			pointer[2]&MODE_ACK ? "|ACK" : "");
-		    output_data("%s", tbuf[1] ? &tbuf[1] : "0");
-		}
-		if (pointer[2]&~(MODE_EDIT|MODE_TRAPSIG|MODE_ACK)) {
-		    output_data(" (0x%x)", pointer[2]);
-		}
-		for (i = 3; i < length; i++) {
-		    output_data(" ?0x%x?", pointer[i]);
-		}
-		break;
-	    default:
-		output_data("%d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++) {
-		    output_data(" %d", pointer[i]);
-		}
-	    }
-	    break;
-
-	case TELOPT_STATUS: {
-	    const char *cp;
-	    int j, k;
-
-	    output_data("STATUS");
-
-	    switch (pointer[1]) {
-	    default:
-		if (pointer[1] == TELQUAL_SEND)
-		    output_data(" SEND");
-		else
-		    output_data(" %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++) {
-		    output_data(" ?%d?", pointer[i]);
-		}
-		break;
-	    case TELQUAL_IS:
-		output_data(" IS\r\n");
-
-		for (i = 2; i < length; i++) {
-		    switch(pointer[i]) {
-		    case DO:	cp = "DO"; goto common2;
-		    case DONT:	cp = "DONT"; goto common2;
-		    case WILL:	cp = "WILL"; goto common2;
-		    case WONT:	cp = "WONT"; goto common2;
-		    common2:
-			i++;
-			if (TELOPT_OK(pointer[i]))
-			    output_data(" %s %s", cp, TELOPT(pointer[i]));
-			else
-			    output_data(" %s %d", cp, pointer[i]);
-
-			output_data("\r\n");
-			break;
-
-		    case SB:
-			output_data(" SB ");
-			i++;
-			j = k = i;
-			while (j < length) {
-			    if (pointer[j] == SE) {
-				if (j+1 == length)
-				    break;
-				if (pointer[j+1] == SE)
-				    j++;
-				else
-				    break;
-			    }
-			    pointer[k++] = pointer[j++];
-			}
-			printsub(0, &pointer[i], k - i);
-			if (i < length) {
-			    output_data(" SE");
-			    i = j;
-			} else
-			    i = j - 1;
-
-			output_data("\r\n");
-
-			break;
-
-		    default:
-			output_data(" %d", pointer[i]);
-			break;
-		    }
-		}
-		break;
-	    }
-	    break;
-	  }
-
-	case TELOPT_XDISPLOC:
-	    output_data("X-DISPLAY-LOCATION ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data("IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		output_data("SEND");
-		break;
-	    default:
-		output_data("- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-
-	case TELOPT_NEW_ENVIRON:
-	    output_data("NEW-ENVIRON ");
-	    goto env_common1;
-	case TELOPT_OLD_ENVIRON:
-	    output_data("OLD-ENVIRON");
-	env_common1:
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		output_data("IS ");
-		goto env_common;
-	    case TELQUAL_SEND:
-		output_data("SEND ");
-		goto env_common;
-	    case TELQUAL_INFO:
-		output_data("INFO ");
-	    env_common:
-		{
-		    int noquote = 2;
-		    for (i = 2; i < length; i++ ) {
-			switch (pointer[i]) {
-			case NEW_ENV_VAR:
-			    output_data("\" VAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			case NEW_ENV_VALUE:
-			    output_data("\" VALUE " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_ESC:
-			    output_data("\" ESC " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_USERVAR:
-			    output_data("\" USERVAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			default:
-			    if (isprint(pointer[i]) && pointer[i] != '"') {
-				if (noquote) {
-				    output_data("\"");
-				    noquote = 0;
-				}
-				output_data("%c", pointer[i]);
-			    } else {
-				output_data("\" %03o " + noquote,
-							pointer[i]);
-				noquote = 2;
-			    }
-			    break;
-			}
-		    }
-		    if (!noquote)
-			output_data("\"");
-		    break;
-		}
-	    }
-	    break;
-
-
-
-	default:
-	    if (TELOPT_OK(pointer[0]))
-		output_data("%s (unknown)", TELOPT(pointer[0]));
-	    else
-		output_data("%d (unknown)", pointer[i]);
-	    for (i = 1; i < length; i++) {
-		output_data(" %d", pointer[i]);
-	    }
-	    break;
-	}
-	output_data("\r\n");
-}
-
-/*
- * Dump a data buffer in hex and ascii to the output data stream.
- */
-void
-printdata(const char *tag, char *ptr, int cnt)
-{
-	int i;
-	char xbuf[30];
-
-	while (cnt) {
-		/* flush net output buffer if no room for new data) */
-		if ((&netobuf[BUFSIZ] - nfrontp) < 80) {
-			netflush();
-		}
-
-		/* add a line of output */
-		output_data("%s: ", tag);
-		for (i = 0; i < 20 && cnt; i++) {
-			output_data("%02x", *ptr);
-			if (isprint(*ptr)) {
-				xbuf[i] = *ptr;
-			} else {
-				xbuf[i] = '.';
-			}
-			if (i % 2) {
-				output_data(" ");
-			}
-			cnt--;
-			ptr++;
-		}
-		xbuf[i] = '\0';
-		output_data(" %s\r\n", xbuf );
-	}
-}
-#endif /* DIAGNOSTICS */
diff --git a/secure/Makefile b/secure/Makefile
index 4155dae3816f..95ef72725170 100644
--- a/secure/Makefile
+++ b/secure/Makefile
@@ -6,26 +6,12 @@
 
 SUBDIR= lib libexec usr.bin usr.sbin
 
-SDIR= ${.CURDIR}/..
-
-CODAI=	${MAKE} ${MFLAGS} cleandir; \
-	${MAKE} ${MFLAGS} obj; \
-	${MAKE} ${MFLAGS} depend all install
-
-CODAD=	${MAKE} ${MFLAGS} cleandir; \
-	${MAKE} ${MFLAGS} obj; \
-	${MAKE} ${MFLAGS} depend all distribute
-
-# These are the programs which depend on secure libs
-sprog:
-	cd ${SDIR}/bin/ed; ${CODAI}
-	cd ${SDIR}/sbin/init; ${CODAI}
-
-bootstrap:
-	( cd include; ${MAKE} ${MFLAGS} install )
-	( cd lib; ${MAKE} ${MFLAGS} depend all install )
-	${MAKE} ${MFLAGS} cleandir
-	${MAKE} ${MFLAGS} obj
-	${MAKE} ${MFLAGS} depend all install sprog
+# These are programs which depend on crypto, but not Kerberos.
+SPROGS=	bin/ed usr.sbin/ppp usr.sbin/pppd usr.sbin/tcpdump/tcpdump \
+	lib/libfetch usr.bin/fetch \
+	lib/libtelnet libexec/telnetd usr.bin/telnet
+.if !defined(NO_SENDMAIL)
+SPROGS+=usr.sbin/sendmail
+.endif
 
 .include <bsd.subdir.mk>
diff --git a/secure/Makefile.inc b/secure/Makefile.inc
index 0f19a7bb99ec..658101a1df9d 100644
--- a/secure/Makefile.inc
+++ b/secure/Makefile.inc
@@ -2,13 +2,6 @@
 
 DISTRIBUTION?=crypto
 
-TELNETDIR=	${.CURDIR}/../../../crypto/telnet
-.if exists(${.OBJDIR}/../../lib/libtelnet)
-LIBTELNET=	${.OBJDIR}/../../lib/libtelnet/libtelnet.a
-.else
-LIBTELNET=	${.CURDIR}/../../lib/libtelnet/libtelnet.a
-.endif
-
 .if exists(${.CURDIR}/../../lib/libcrypt/obj)
 CRYPTOBJDIR=	${.CURDIR}/../../lib/libcrypt/obj
 .else
diff --git a/secure/lib/Makefile b/secure/lib/Makefile
index 56b98e59e3a8..049fd398f31c 100644
--- a/secure/lib/Makefile
+++ b/secure/lib/Makefile
@@ -6,9 +6,6 @@ SUBDIR+=libcrypto libssl
 .if !defined(NO_OPENSSH)
 SUBDIR+=libssh
 .endif
-.if defined(NO_KERBEROS)
-SUBDIR+=libtelnet
-.endif
 .endif
 
 .include <bsd.subdir.mk>
diff --git a/secure/lib/libtelnet/Makefile b/secure/lib/libtelnet/Makefile
deleted file mode 100644
index 67d5d474c65e..000000000000
--- a/secure/lib/libtelnet/Makefile
+++ /dev/null
@@ -1,29 +0,0 @@
-# $FreeBSD$
-
-LIB=	telnet
-INTERNALLIB=	yes
-
-SRCS=	genget.c getent.c misc.c encrypt.c auth.c enc_des.c sra.c pk.c
-
-WARNS?=	2
-CFLAGS+= -DENCRYPTION -DAUTHENTICATION -DSRA \
-	 -I${TELNETDIR} -I${TELNETDIR}/libtelnet
-
-INCS=	${TELNETDIR}/arpa/telnet.h
-INCSDIR=${INCLUDEDIR}/arpa
-
-.include <bsd.lib.mk>
-
-.PATH:	${TELNETDIR}/libtelnet
-
-#
-# Remove obsolete shared libraries, if any.  We don't bother moving them
-# to /usr/lib/compat, since they were only used by telnet, telnetd and
-# tn3270.
-#
-beforeinstall: __remove-stale-libs
-__remove-stale-libs: .PHONY
-.if exists(${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0)
-	-chflags noschg ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0
-	rm -f ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0
-.endif
diff --git a/secure/libexec/Makefile b/secure/libexec/Makefile
index 56d09b763832..b60b4cea0d06 100644
--- a/secure/libexec/Makefile
+++ b/secure/libexec/Makefile
@@ -5,9 +5,6 @@ SUBDIR=
 .if !defined(NO_OPENSSH)
 SUBDIR+=sftp-server ssh-keysign
 .endif
-.if defined(NO_KERBEROS)
-SUBDIR+=telnetd
-.endif
 .endif
 
 .include <bsd.subdir.mk>
diff --git a/secure/libexec/telnetd/Makefile b/secure/libexec/telnetd/Makefile
deleted file mode 100644
index 07378fd6d137..000000000000
--- a/secure/libexec/telnetd/Makefile
+++ /dev/null
@@ -1,26 +0,0 @@
-# $FreeBSD$
-
-# Do not define -DKLUDGELINEMODE, as it does not interact well with many
-# telnet implementations.
-
-PROG=		telnetd
-MAN=		telnetd.8
-
-SRCS=		global.c slc.c state.c sys_term.c telnetd.c \
-		termstat.c utility.c authenc.c
-
-CFLAGS+=	-DLINEMODE -DUSE_TERMIO -DDIAGNOSTICS -DOLD_ENVIRON \
-		-DENV_HACK -DAUTHENTICATION -DENCRYPTION \
-		-I${TELNETDIR} -DINET6
-
-WARNS?=		2
-WFORMAT?=	0
-
-DPADD=		${LIBUTIL} ${LIBTERMCAP} ${LIBTELNET} ${LIBMP} ${LIBCRYPTO} \
-		${LIBCRYPT} ${LIBPAM}
-LDADD=		-lutil -ltermcap ${LIBTELNET} -lmp -lcrypto \
-		-lcrypt ${MINUSLPAM}
-
-.include <bsd.prog.mk>
-
-.PATH:	${TELNETDIR}/telnetd
diff --git a/secure/usr.bin/Makefile b/secure/usr.bin/Makefile
index 77674ab5a606..4d78845f6c6f 100644
--- a/secure/usr.bin/Makefile
+++ b/secure/usr.bin/Makefile
@@ -6,9 +6,6 @@ SUBDIR+=bdes openssl
 .if !defined(NO_OPENSSH)
 SUBDIR+=scp sftp ssh ssh-add ssh-agent ssh-keygen ssh-keyscan
 .endif
-.if defined(NO_KERBEROS)
-SUBDIR+=telnet
-.endif
 .endif
 
 .include <bsd.subdir.mk>
diff --git a/secure/usr.bin/telnet/Makefile b/secure/usr.bin/telnet/Makefile
deleted file mode 100644
index 74cf075d18d9..000000000000
--- a/secure/usr.bin/telnet/Makefile
+++ /dev/null
@@ -1,21 +0,0 @@
-# $FreeBSD$
-
-PROG=		telnet
-
-SRCS=		authenc.c commands.c main.c network.c ring.c sys_bsd.c \
-		telnet.c terminal.c utilities.c
-
-CFLAGS+=	-DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DOPIE \
-		-DENCRYPTION -DAUTHENTICATION -DIPSEC -DINET6 \
-		-I${TELNETDIR} -I${TELNETDIR}/libtelnet/
-
-WARNS?=		2
-
-DPADD=		${LIBTERMCAP} ${LIBTELNET} ${LIBMP} \
-		${LIBCRYPTO} ${LIBCRYPT} ${LIBIPSEC} ${LIBPAM}
-LDADD=		-ltermcap ${LIBTELNET} -lmp \
-		-lcrypto -lcrypt -lipsec ${MINUSLPAM}
-
-.include <bsd.prog.mk>
-
-.PATH:	${TELNETDIR}/telnet
diff --git a/usr.bin/Makefile b/usr.bin/Makefile
index 468012142efa..c63057607a90 100644
--- a/usr.bin/Makefile
+++ b/usr.bin/Makefile
@@ -167,6 +167,7 @@ SUBDIR=	alias \
 	talk \
 	tcopy \
 	tee \
+	telnet \
 	tftp \
 	time \
 	tip \
@@ -217,13 +218,6 @@ SUBDIR=	alias \
 	ypmatch \
 	ypwhich
 
-.if defined(RELEASEDIR) || \
-    (!exists(${.CURDIR}/../secure) && !exists(${.CURDIR}/../kerberos5)) || \
-    defined(NOCRYPT) || defined(NO_OPENSSL) || defined(NO_KERBEROS)
-# make release needs both
-SUBDIR+=telnet
-.endif
-
 .if !defined(NO_BIND)
 SUBDIR+=dig \
 	dnskeygen \
diff --git a/usr.bin/telnet/Makefile b/usr.bin/telnet/Makefile
index a8c835161a32..817a725cf615 100644
--- a/usr.bin/telnet/Makefile
+++ b/usr.bin/telnet/Makefile
@@ -1,12 +1,15 @@
 # $FreeBSD$
 
+TELNETDIR=	${.CURDIR}/../../contrib/telnet
+.PATH:		${TELNETDIR}/telnet
+
 PROG=		telnet
 
 SRCS=		commands.c main.c network.c ring.c sys_bsd.c \
 		telnet.c terminal.c utilities.c
 
 CFLAGS+=	-DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DOPIE \
-		-I${.CURDIR}/../../lib -I${.CURDIR}/../../lib/libtelnet/
+		-I${TELNETDIR} -I${TELNETDIR}/libtelnet/
 
 .if exists(${.OBJDIR}/../../lib/libtelnet)
 LIBTELNET=	${.OBJDIR}/../../lib/libtelnet/libtelnet.a
@@ -22,19 +25,21 @@ CFLAGS+=	-DINET6 -DIPSEC
 DPADD+=		${LIBIPSEC}
 LDADD+=		-lipsec
 .else
-.PATH:		${.CURDIR}/../../lib/libtelnet
-# XXX This was copied from lib/libtelnet/Makefile.
+.PATH:         ${TELNETDIR}/libtelnet
 SRCS+=		genget.c getent.c misc.c
 CFLAGS+=	-DHAS_CGETENT
 .endif
 
-unifdef:
-	-cd ${.CURDIR} ; \
-	( for i in *.[ch] ; do \
-		unifdef -UAUTHENTICATION -UENCRYPTION \
-			${.CURDIR}/../../crypto/telnet/telnet/$$i \
-				> ${.CURDIR}/$$i ; \
-		echo $$i ; \
-	done )
+.if !defined(NO_CRYPTO)
+SRCS+=		authenc.c 
+CFLAGS+=	-DENCRYPTION -DAUTHENTICATION -DIPSEC
+DPADD+=		${LIBMP} ${LIBCRYPTO} ${LIBCRYPT} ${LIBIPSEC} ${LIBPAM}
+LDADD+=		-lmp -lcrypto -lcrypt -lipsec ${MINUSLPAM}
+.if !defined(NO_KERBEROS)
+CFLAGS+=	-DKRB5 -DFORWARD -Dnet_write=telnet_net_write
+DPADD+=		${LIBKRB5} ${LIBASN1} ${LIBCOM_ERR} ${LIBROKEN}
+LDADD+=		-lkrb5 -lasn1 -lcom_err -lroken
+.endif
+.endif
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/telnet/README b/usr.bin/telnet/README
deleted file mode 100644
index c69e12844de6..000000000000
--- a/usr.bin/telnet/README
+++ /dev/null
@@ -1,746 +0,0 @@
-# $FreeBSD$
-
-This is a distribution of both client and server telnet.  These programs
-have been compiled on:
-			telnet	telnetd
-	4.4 BSD-Lite	  x	  x
-	4.3 BSD Reno	  X	  X
-	UNICOS 9.1	  X	  X
-	UNICOS 9.0	  X	  X
-	UNICOS 8.0	  X	  X
-	BSDI 2.0	  X	  X
-	Solaris 2.4       x       x (no linemode in server)
-	SunOs 4.1.4	  X	  X (no linemode in server)
-	Ultrix 4.3	  X	  X (no linemode in server)
-	Ultrix 4.1	  X	  X (no linemode in server)
-
-	NOTE - UNICOS and hpux-specific #ifdef code has now been removed
-
-In addition, previous versions have been compiled on the following
-machines, but were not available for testing this version.
-			telnet	telnetd
-	Next1.0		  X	  X
-	UNICOS 8.3	  X	  X
-	UNICOS 7.C	  X	  X
-	UNICOS 7.0	  X	  X
-	SunOs 4.0.3c	  X	  X (no linemode in server)
-	4.3 BSD		  X  	  X (no linemode in server)
-	DYNIX V3.0.12	  X	  X (no linemode in server)
-	Ultrix 3.1	  X	  X (no linemode in server)
-	Ultrix 4.0	  X	  X (no linemode in server)
-	SunOs 3.5	  X	  X (no linemode in server)
-	SunOs 4.1.3	  X	  X (no linemode in server)
-	Solaris 2.2       x       x (no linemode in server)
-	Solaris 2.3       x       x (no linemode in server)
-	BSDI 1.0	  X	  X
-	BSDI 1.1	  X	  X
-	DYNIX V3.0.17.9	  X	  X (no linemode in server)
-	HP-UX 8.0	  x       x (no linemode in server)
-
-This code should work, but there are no guarantees.
-
-May 30, 1995
-
-This release represents what is on the 4.4BSD-Lite2 release, which
-should be the final BSD release.  I will continue to support of
-telnet, The code (without encryption) is available via anonymous ftp
-from ftp.cray.com, in src/telnet/telnet.YY.MM.DD.NE.tar.Z, where
-YY.MM.DD is replaced with the year, month and day of the release.
-If you can't find it at one of these places, at some point in the
-near future information about the latest releases should be available
-from ftp.borman.com.
-
-In addition, the version with the encryption code is available via
-ftp from net-dist.mit.edu, in the directory /pub/telnet.  There
-is a README file there that gives further information on how
-to get the distribution.
-
-Questions, comments, bug reports and bug fixes can be sent to
-one of these addresses:
-		dab@borman.com
-		dab@cray.com
-		dab@bsdi.com
-
-This release is mainly bug fixes and code cleanup.
-
-	Replace all calls to bcopy()/bzero() with calls to
-	memmove()/memset() and all calls to index()/rindex()
-	with calls to strchr()/strrchr().
-
-	Add some missing diagnostics for option tracing
-	to telnetd.
-
-	Add support for BSDI 2.0 and Solaris 2.4.
-
-	Add support for UNICOS 8.0
-
-	Get rid of expanded tabs and trailing white spaces.
-
-	From Paul Vixie:
-		Fix for telnet going into an endless spin
-		when the session dies abnormally.
-
-	From Jef Poskanzer:
-		Changes to allow telnet to compile
-		under SunOS 3.5.
-
-	From Philip Guenther:
-		makeutx() doesn't expand utmpx,
-		use pututxline() instead.
-
-	From Chris Torek:
-		Add a sleep(1) before execing login
-		to avoid race condition that can eat
-		up the login prompt.
-		Use terminal speed directly if it is
-		not an encoded value.
-
-	From Steve Parker:
-		Fix to realloc() call.  Fix for execing
-		login on solaris with no user name.
-
-January 19, 1994
-
-This is a list of some of the changes since the last tar release
-of telnet/telnetd.  There are probably other changes that aren't
-listed here, but this should hit a lot of the main ones.
-
-   General:
-	Changed #define for AUTHENTICATE to AUTHENTICATION
-	Changed #define for ENCRYPT to ENCRYPTION
-	Changed #define for DES_ENCRYPT to DES_ENCRYPTION
-
-	Added support for SPX authentication: -DSPX
-
-	Added support for Kerberos Version 5 authentication: -DKRB5
-
-	Added support for ANSI C function prototypes
-
-	Added support for the NEW-ENVIRON option (RFC-1572)
-	including support for USERVAR.
-
-	Made support for the old Environment Option (RFC-1408)
-	conditional on -DOLD_ENVIRON
-
-	Added #define ENV_HACK - support for RFC 1571
-
-	The encryption code is removed from the public distributions.
-	Domestic 4.4 BSD distributions contain the encryption code.
-
-	ENV_HACK: Code to deal with systems that only implement
-		the old ENVIRON option, and have reversed definitions
-		of ENV_VAR and ENV_VAL.  Also fixes ENV processing in
-		client to handle things besides just the default set...
-
-	NO_BSD_SETJMP: UNICOS configuration for
-		UNICOS 6.1/6.0/5.1/5.0 systems.
-
-	STREAMSPTY: Use /dev/ptmx to get a clean pty.  This
-		is for SVr4 derivatives (Like Solaris)
-
-	UTMPX: For systems that have /etc/utmpx. This is for
-		SVr4 derivatives (Like Solaris)
-
-	Definitions for BSDI 1.0
-
-	Definitions for 4.3 Reno and 4.4 BSD.
-
-	Definitions for UNICOS 8.0 and UNICOS 7.C
-
-	Definitions for Solaris 2.0
-
-	Definitions for HP-UX 8.0
-
-	Latest Copyright notices from Berkeley.
-
-	FLOW-CONTROL: support for RFC-XXXx
-
-
-   Client Specific:
-
-	Fix the "send" command to not send garbage...
-
-	Fix status message for "skiprc"
-
-	Make sure to send NAWS after telnet has been suspended
-	or an external command has been run, if the window size
-	has changed.
-
-	sysV88 support.
-
-   Server Specific:
-
-	Support flowcontrol option in non-linemode servers.
-
-	-k Server supports Kludge Linemode, but will default to
-	   either single character mode or real Linemode support.
-	   The user will have to explicitly ask to switch into
-	   kludge linemode. ("stty extproc", or escape back to
-	   to telnet and say "mode line".)
-
-	-u Specify the length of the hostname field in the utmp
-	   file.  Hostname longer than this length will be put
-	   into the utmp file in dotted decimal notation, rather
-	   than putting in a truncated hostname.
-	
-	-U Registered hosts only.  If a reverse hostname lookup
-	   fails, the connection will be refused.
-
-	-f/-F
-	   Allows forwarding of credentials for KRB5.
-
-Februrary 22, 1991:
-
-    Features:
-
-	This version of telnet/telnetd has support for both
-	the AUTHENTICATION and ENCRYPTION options.  The
-	AUTHENTICATION option is fairly well defined, and
-	an option number has been assigned to it.  The
-	ENCRYPTION option is still in a state of flux; an
-	option number has been assigned to, but it is still
-	subject to change.  The code is provided in this release
-	for experimental and testing purposes.
-
-	The telnet "send" command can now be used to send
-	do/dont/will/wont commands, with any telnet option
-	name.  The rules for when do/dont/will/wont are sent
-	are still followed, so just because the user requests
-	that one of these be sent doesn't mean that it will
-	be sent...
-
-	The telnet "getstatus" command no longer requires
-	that option printing be enabled to see the response
-	to the "DO STATUS" command.
-
-	A -n flag has been added to telnetd to disable
-	keepalives.
-
-	A new telnet command, "auth" has been added (if
-	AUTHENTICATE is defined).  It has four sub-commands,
-	"status", "disable", "enable" and "help".
-
-	A new telnet command, "encrypt" has been added (if
-	ENCRYPT is defined).  It has many sub-commands:
-	"enable", "type", "start", "stop", "input",
-	"-input", "output", "-output", "status", and "help".
-
-	The LOGOUT option is now supported by both telnet
-	and telnetd, a new command, "logout", was added
-	to support this.
-
-	Several new toggle options were added:
-	    "autoencrypt", "autodecrypt", "autologin", "authdebug",
-	    "encdebug", "skiprc", "verbose_encrypt"
-
-	An "rlogin" interface has been added.  If the program
-	is named "rlogin", or the "-r" flag is given, then
-	an rlogin type of interface will be used.
-		~.	Terminates the session
-		~<susp> Suspend the session
-		~^]	Escape to telnet command mode
-		~~	Pass through the ~.
-	    BUG: If you type the rlogin escape character
-		 in the middle of a line while in rlogin
-		 mode, you cannot erase it or any characters
-		 before it.  Hopefully this can be fixed
-		 in a future release...
-
-    General changes:
-
-	A "libtelnet.a" has now been created.  This libraray
-	contains code that is common to both telnet and
-	telnetd.  This is also where library routines that
-	are needed, but are not in the standard C library,
-	are placed.
-
-	The makefiles have been re-done.  All of the site
-	specific configuration information has now been put
-	into a single "Config.generic" file, in the top level
-	directory.  Changing this one file will take care of
-	all three subdirectories.  Also, to add a new/local
-	definition, a "Config.local" file may be created
-	at the top level; if that file exists, the subdirectories
-	will use that file instead of "Config.generic".
-
-	Many 1-2 line functions in commands.c have been
-	removed, and just inserted in-line, or replaced
-	with a macro.
-
-    Bug Fixes:
-
-	The non-termio code in both telnet and telnetd was
-	setting/clearing CTLECH in the sg_flags word.  This
-	was incorrect, and has been changed to set/clear the
-	LCTLECH bit in the local mode word.
-
-	The SRCRT #define has been removed.  If IP_OPTIONS
-	and IPPROTO_IP are defined on the system, then the
-	source route code is automatically enabled.
-
-	The NO_GETTYTAB #define has been removed; there
-	is a compatibility routine that can be built into
-	libtelnet to achive the same results.
-
-	The server, telnetd, has been switched to use getopt()
-	for parsing the argument list.
-
-	The code for getting the input/output speeds via
-	cfgetispeed()/cfgetospeed() was still not quite
-	right in telnet.  Posix says if the ispeed is 0,
-	then it is really equal to the ospeed.
-
-	The suboption processing code in telnet now has
-	explicit checks to make sure that we received
-	the entire suboption (telnetd was already doing this).
-
-	The telnet code for processing the terminal type
-	could cause a core dump if an existing connection
-	was closed, and a new connection opened without
-	exiting telnet.
-
-	Telnetd was doing a TCSADRAIN when setting the new
-	terminal settings;  This is not good, because it means
-	that the tcsetattr() will hang waiting for output to
-	drain, and telnetd is the only one that will drain
-	the output...  The fix is to use TCSANOW which does
-	not wait.
-
-	Telnetd was improperly setting/clearing the ISTRIP
-	flag in the c_lflag field, it should be using the
-	c_iflag field. 
-
-	When the child process of telnetd was opening the
-	slave side of the pty, it was re-setting the EXTPROC
-	bit too early, and some of the other initialization
-	code was wiping it out.  This would cause telnetd
-	to go out of linemode and into single character mode.
-
-	One instance of leaving linemode in telnetd forgot
-	to send a WILL ECHO to the client, the net result
-	would be that the user would see double character
-	echo.
-
-	If the MODE was being changed several times very
-	quickly, telnetd could get out of sync with the
-	state changes and the returning acks; and wind up
-	being left in the wrong state.
-
-September 14, 1990:
-
-	Switch the client to use getopt() for parsing the
-	argument list.  The 4.3Reno getopt.c is included for
-	systems that don't have getopt().
-
-	Use the posix _POSIX_VDISABLE value for what value
-	to use when disabling special characters.  If this
-	is undefined, it defaults to 0x3ff.
-
-	For non-termio systems, TIOCSETP was being used to
-	change the state of the terminal.  This causes the
-	input queue to be flushed, which we don't want.  This
-	is now changed to TIOCSETN.
-
-	Take out the "#ifdef notdef" around the code in the
-	server that generates a "sync" when the pty oputput
-	is flushed.  The potential problem is that some older
-	telnet clients may go into an infinate loop when they
-	receive a "sync", if so, the server can be compiled
-	with "NO_URGENT" defined.
-
-	Fix the client where it was setting/clearing the OPOST
-	bit in the c_lflag field, not the c_oflag field.
-
-	Fix the client where it was setting/clearing the ISTRIP
-	bit in the c_lflag field, not the c_iflag field.  (On
-	4.3Reno, this is the ECHOPRT bit in the c_lflag field.)
-	The client also had its interpretation of WILL BINARY
-	and DO BINARY reversed.
-
-	Fix a bug in client that would cause a core dump when
-	attempting to remove the last environment variable.
-
-	In the client, there were a few places were switch()
-	was being passed a character, and if it was a negative
-	value, it could get sign extended, and not match
-	the 8 bit case statements.  The fix is to and the
-	switch value with 0xff.
-
-	Add a couple more printoption() calls in the client, I
-	don't think there are any more places were a telnet
-	command can be received and not printed out when
-	"options" is on.
-
-	A new flag has been added to the client, "-a".  Currently,
-	this just causes the USER name to be sent across, in
-	the future this may be used to signify that automatic
-	authentication is requested.
-
-	The USER variable is now only sent by the client if
-	the "-a" or "-l user" options are explicity used, or
-	if the user explicitly asks for the "USER" environment
-	variable to be exported.  In the server, if it receives
-	the "USER" environment variable, it won't print out the
-	banner message, so that only "Password:" will be printed.
-	This makes the symantics more like rlogin, and should be
-	more familiar to the user.  (People are not used to
-	getting a banner message, and then getting just a
-	"Password:" prompt.)
-
-	Re-vamp the code for starting up the child login
-	process.  The code was getting ugly, and it was
-	hard to tell what was really going on.  What we
-	do now is after the fork(), in the child:
-		1) make sure we have no controlling tty
-		2) open and initialize the tty
-		3) do a setsid()/setpgrp()
-		4) makes the tty our controlling tty.
-	On some systems, #2 makes the tty our controlling
-	tty, and #4 is a no-op.  The parent process does
-	a gets rid of any controlling tty after the child
-	is fork()ed.
-
-	Use the strdup() library routine in telnet, instead
-	of the local savestr() routine.  If you don't have
-	strdup(), you need to define NO_STRDUP.
-
-	Add support for ^T (SIGINFO/VSTATUS), found in the
-	4.3Reno distribution.  This maps to the AYT character.
-	You need a 4-line bugfix in the kernel to get this
-	to work properly:
-
-	> *** tty_pty.c.ORG	Tue Sep 11 09:41:53 1990
-	> --- tty_pty.c	Tue Sep 11 17:48:03 1990
-	> ***************
-	> *** 609,613 ****
-	> 			if ((tp->t_lflag&NOFLSH) == 0)
-	> 				ttyflush(tp, FREAD|FWRITE);
-	> ! 			pgsignal(tp->t_pgrp, *(unsigned int *)data);
-	> 			return(0);
-	> 		}
-	> --- 609,616 ----
-	> 			if ((tp->t_lflag&NOFLSH) == 0)
-	> 				ttyflush(tp, FREAD|FWRITE);
-	> ! 			pgsignal(tp->t_pgrp, *(unsigned int *)data, 1);
-	> ! 			if ((*(unsigned int *)data == SIGINFO) &&
-	> ! 			    ((tp->t_lflag&NOKERNINFO) == 0))
-	> ! 				ttyinfo(tp);
-	> 			return(0);
-	> 		}
-
-	The client is now smarter when setting the telnet escape
-	character; it only sets it to one of VEOL and VEOL2 if
-	one of them is undefined, and the other one is not already
-	defined to the telnet escape character.
-
-	Handle TERMIOS systems that have separate input and output
-	line speed settings embedded in the flags.
-
-	Many other minor bug fixes.
-
-June 20, 1990:
-	Re-organize makefiles and source tree.  The telnet/Source
-	directory is now gone, and all the source that was in
-	telnet/Source is now just in the telnet directory.
-
-	Separate makefile for each system are now gone.  There
-	are two makefiles, Makefile and Makefile.generic.
-	The "Makefile" has the definitions for the various
-	system, and "Makefile.generic" does all the work.
-	There is a variable called "WHAT" that is used to
-	specify what to make.  For example, in the telnet
-	directory, you might say:
-		make 4.4bsd WHAT=clean
-	to clean out the directory.
-
-	Add support for the ENVIRON and XDISPLOC options.
-	In order for the server to work, login has to have
-	the "-p" option to preserve environment variables.
-
-	Add the SOFT_TAB and LIT_ECHO modes in the LINEMODE support.
-
-	Add the "-l user" option to command line and open command
-	(This is passed through the ENVIRON option).
-
-	Add the "-e" command line option, for setting the escape
-	character.
-
-	Add the "-D", diagnostic, option to the server.  This allows
-	the server to print out debug information, which is very
-	useful when trying to debug a telnet that doesn't have any
-	debugging ability.
-
-	Turn off the literal next character when not in LINEMODE.
-
-	Don't recognize ^Y locally, just pass it through.
-
-	Make minor modifications for Sun4.0 and Sun4.1
-
-	Add support for both FORW1 and FORW2 characters.  The
-	telnet escpape character is set to whichever of the
-	two is not being used.  If both are in use, the escape
-	character is not set, so when in linemode the user will
-	have to follow the escape character with a <CR> or <EOF)
-	to get it passed through.
-
-	Commands can now be put in single and double quotes, and
-	a backslash is now an escape character.  This is needed
-	for allowing arbitrary strings to be assigned to environment
-	variables.
-
-	Switch telnetd to use macros like telnet for keeping
-	track of the state of all the options.
-
-	Fix telnetd's processing of options so that we always do
-	the right processing of the LINEMODE option, regardless
-	of who initiates the request to turn it on.  Also, make
-	sure that if the other side went "WILL ECHO" in response
-	to our "DO ECHO", that we send a "DONT ECHO" to get the
-	option turned back off!
-
-	Fix the TERMIOS setting of the terminal speed to handle both
-	BSD's separate fields, and the SYSV method of CBAUD bits.
-
-	Change how we deal with the other side refusing to enable
-	an option.  The sequence used to be: send DO option; receive
-	WONT option; send DONT option.  Now, the sequence is: send
-	DO option; receive WONT option.  Both should be valid
-	according to the spec, but there has been at least one
-	client implementation of telnet identified that can get
-	really confused by this.  (The exact sequence, from a trace
-	on the server side, is (numbers are number of responses that
-	we expect to get after that line...):
-
-		send WILL ECHO	1 (initial request)
-		send WONT ECHO	2 (server is changing state)
-		recv DO ECHO	1 (first reply, ok.  expect DONT ECHO next)
-		send WILL ECHO	2 (server changes state again)
-		recv DONT ECHO	1 (second reply, ok.  expect DO ECHO next)
-		recv DONT ECHO	0 (third reply, wrong answer. got DONT!!!)
-	***	send WONT ECHO	  (send WONT to acknowledge the DONT)
-		send WILL ECHO	1 (ask again to enable option)
-		recv DO ECHO	0
-
-		recv DONT ECHO	0
-		send WONT ECHO	1
-		recv DONT ECHO	0
-		recv DO ECHO	1
-		send WILL ECHO	0
-		(and the last 5 lines loop forever)
-
-	The line with the "***" is last of the WILL/DONT/WONT sequence.
-	The change to the server to not generate that makes this same
-	example become:
-
-		send will ECHO	1
-		send wont ECHO	2
-		recv do ECHO	1
-		send will ECHO	2
-		recv dont ECHO	1
-		recv dont ECHO	0
-		recv do ECHO	1
-		send will ECHO	0
-
-	There is other option negotiation going on, and not sending
-	the third part changes some of the timings, but this specific
-	example no longer gets stuck in a loop.  The "telnet.state"
-	file has been modified to reflect this change to the algorithm.
-
-	A bunch of miscellaneous bug fixes and changes to make
-	lint happier.
-
-	This version of telnet also has some KERBEROS stuff in
-	it. This has not been tested, it uses an un-authorized
-	telnet option number, and uses an out-of-date version
-	of the (still being defined) AUTHENTICATION option.
-	There is no support for this code, do not enable it.
-
-
-March 1, 1990:
-CHANGES/BUGFIXES SINCE LAST RELEASE:
-	Some support for IP TOS has been added.  Requires that the
-	kernel support the IP_TOS socket option (currently this
-	is only in UNICOS 6.0).
-
-	Both telnet and telnetd now use the cc_t typedef.  typedefs are
-	included for systems that don't have it (in termios.h).
-
-	SLC_SUSP was not supported properly before.  It is now.
-
-	IAC EOF was not translated  properly in telnetd for SYSV_TERMIO
-	when not in linemode.  It now saves a copy of the VEOF character,
-	so that when ICANON is turned off and we can't trust it anymore
-	(because it is now the VMIN character) we use the saved value.
-
-	There were two missing "break" commands in the linemode
-	processing code in telnetd.
-
-	Telnetd wasn't setting the kernel window size information
-	properly.  It was using the rows for both rows and columns...
-
-Questions/comments go to
-		David Borman
-		Cray Research, Inc.
-		655F Lone Oak Drive
-		Eagan, MN 55123
-		dab@cray.com.
-
-README:	You are reading it.
-
-Config.generic:
-	This file contains all the OS specific definitions.  It
-	has pre-definitions for many common system types, and is
-	in standard makefile fromat.  See the comments at the top
-	of the file for more information.
-
-Config.local:
-	This is not part of the distribution, but if this file exists,
-	it is used instead of "Config.generic".  This allows site
-	specific configuration without having to modify the distributed
-	"Config.generic" file.
-
-kern.diff:
-	This file contains the diffs for the changes needed for the
-	kernel to support LINEMODE is the server.  These changes are
-	for a 4.3BSD system.  You may need to make some changes for
-	your particular system.
-
-	There is a new bit in the terminal state word, TS_EXTPROC.
-	When this bit is set, several aspects of the terminal driver
-	are disabled.  Input line editing, character echo, and
-	mapping of signals are all disabled.  This allows the telnetd
-	to turn of these functions when in linemode, but still keep
-	track of what state the user wants the terminal to be in.
-
-	New ioctl()s:
-
-		TIOCEXT		Turn on/off the TS_EXTPROC bit
-		TIOCGSTATE	Get t_state of tty to look at TS_EXTPROC bit
-		TIOCSIG		Generate a signal to processes in the
-				current process group of the pty.
-
-	There is a new mode for packet driver, the TIOCPKT_IOCTL bit.
-	When packet mode is turned on in the pty, and the TS_EXTPROC
-	bit is set, then whenever the state of the pty is changed, the
-	next read on the master side of the pty will have the TIOCPKT_IOCTL
-	bit set, and the data will contain the following:
-		struct xx {
-			struct sgttyb a;
-			struct tchars b;
-			struct ltchars c;
-			int t_state;
-			int t_flags;
-		}
-	This allows the process on the server side of the pty to know
-	when the state of the terminal has changed, and what the new
-	state is.
-
-	However, if you define USE_TERMIO or SYSV_TERMIO, the code will
-	expect that the structure returned in the TIOCPKT_IOCTL is
-	the termio/termios structure.
-
-stty.diff:
-	This file contains the changes needed for the stty(1) program
-	to report on the current status of the TS_EXTPROC bit.  It also
-	allows the user to turn on/off the TS_EXTPROC bit.  This is useful
-	because it allows the user to say "stty -extproc", and the
-	LINEMODE option will be automatically disabled, and saying "stty
-	extproc" will re-enable the LINEMODE option.
-
-telnet.state:
-	Both the client and server have code in them to deal
-	with option negotiation loops.  The algorithm that is
-	used is described in this file.
-
-telnet:
-	This directory contains the client code.  No kernel changes are
-	needed to use this code.
-
-telnetd:
-	This directory contains the server code.  If LINEMODE or KLUDGELINEMODE
-	are defined, then the kernel modifications listed above are needed.
-
-libtelnet:
-	This directory contains code that is common to both the client
-	and the server.
-
-arpa:
-	This directory has a new <arpa/telnet.h>
-
-libtelnet/Makefile.4.4:
-telnet/Makefile.4.4:
-telnetd/Makefile.4.4:
-	These are the makefiles that can be used on a 4.3Reno
-	system when this software is installed in /usr/src/lib/libtelnet,
-	/usr/src/libexec/telnetd, and /usr/src/usr.bin/telnet.
-
-
-The following TELNET options are supported:
-	
-	LINEMODE:
-		The LINEMODE option is supported as per RFC1116.  The
-		FORWARDMASK option is not currently supported.
-
-	BINARY: The client has the ability to turn on/off the BINARY
-		option in each direction.  Turning on BINARY from
-		server to client causes the LITOUT bit to get set in
-		the terminal driver on both ends,  turning on BINARY
-		from the client to the server causes the PASS8 bit
-		to get set in the terminal driver on both ends.
-
-	TERMINAL-TYPE:
-		This is supported as per RFC1091.  On the server side,
-		when a terminal type is received, termcap/terminfo
-		is consulted to determine if it is a known terminal
-		type.  It keeps requesting terminal types until it
-		gets one that it recongnizes, or hits the end of the
-		list.  The server side looks up the entry in the
-		termcap/terminfo data base, and generates a list of
-		names which it then passes one at a time to each
-		request for a terminal type, duplicating the last
-		entry in the list before cycling back to the beginning.
-
-	NAWS:	The Negotiate about Window Size, as per RFC 1073.
-
-	TERMINAL-SPEED:
-		Implemented as per RFC 1079
-
-	TOGGLE-FLOW-CONTROL:
-		Implemented as per RFC 1080
-
-	TIMING-MARK:
-		As per RFC 860
-
-	SGA:	As per RFC 858
-
-	ECHO:	As per RFC 857
-
-	LOGOUT: As per RFC 727
-
-	STATUS:
-		The server will send its current status upon
-		request.  It does not ask for the clients status.
-		The client will request the servers current status
-		from the "send getstatus" command.
-
-	ENVIRON:
-		This option is currently being defined by the IETF
-		Telnet Working Group, and an RFC has not yet been
-		issued, but should be in the near future...
-
-	X-DISPLAY-LOCATION:
-		This functionality can be done through the ENVIRON
-		option, it is added here for completeness.
-
-	AUTHENTICATION:
-		This option is currently being defined by the IETF
-		Telnet Working Group, and an RFC has not yet been
-		issued.  The basic framework is pretty much decided,
-		but the definitions for the specific authentication
-		schemes is still in a state of flux.
-
-	ENCRYPTION:
-		This option is currently being defined by the IETF
-		Telnet Working Group, and an RFC has not yet been
-		issued.  The draft RFC is still in a state of flux,
-		so this code may change in the future.
diff --git a/usr.bin/telnet/commands.c b/usr.bin/telnet/commands.c
deleted file mode 100644
index 489481f9ba7e..000000000000
--- a/usr.bin/telnet/commands.c
+++ /dev/null
@@ -1,2739 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)commands.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/un.h>
-#include <sys/file.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <netdb.h>
-#include <pwd.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <arpa/telnet.h>
-#include <arpa/inet.h>
-
-#include "general.h"
-
-#include "ring.h"
-
-#include "externs.h"
-#include "defines.h"
-#include "types.h"
-#include "misc.h"
-
-
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip6.h>
-
-#ifndef       MAXHOSTNAMELEN
-#define       MAXHOSTNAMELEN 256
-#endif
-
-typedef int (*intrtn_t)(int, char **);
-
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-int tos = -1;
-#endif	/* defined(IPPROTO_IP) && defined(IP_TOS) */
-
-char	*hostname;
-static char _hostname[MAXHOSTNAMELEN];
-
-static int help(int, char **);
-static int call(intrtn_t, ...);
-static void cmdrc(char *, char *);
-#ifdef INET6
-static int switch_af(struct addrinfo **);
-#endif
-static int togglehelp(void);
-static int send_tncmd(void (*)(int, int), const char *, char *);
-static int setmod(int);
-static int clearmode(int);
-static int modehelp(void);
-static int sourceroute(struct addrinfo *, char *, char **, int *, int *, int *);
-
-typedef struct {
-	const char *name;	/* command name */
-	const char *help;	/* help string (NULL for no help) */
-	int	(*handler)(int, char **); /* routine which executes command */
-	int	needconnect;	/* Do we need to be connected to execute? */
-} Command;
-
-static char line[256];
-static char saveline[256];
-static int margc;
-static char *margv[20];
-
-#ifdef OPIE
-#include <sys/wait.h>
-#define PATH_OPIEKEY	"/usr/bin/opiekey"
-static int
-opie_calc(int argc, char *argv[])
-{
-	int status;
-
-	if(argc != 3) {
-		printf("%s sequence challenge\n", argv[0]);
-		return (0);
-	}
-
-	switch(fork()) {
-	case 0:
-		execv(PATH_OPIEKEY, argv);
-		exit (1);
-	case -1:
-		perror("fork");
-		break;
-	default:
-		(void) wait(&status);
-		if (WIFEXITED(status))
-			return (WEXITSTATUS(status));
-	}
-	return (0);
-}
-#endif
-
-static void
-makeargv(void)
-{
-    char *cp, *cp2, c;
-    char **argp = margv;
-
-    margc = 0;
-    cp = line;
-    if (*cp == '!') {		/* Special case shell escape */
-	strcpy(saveline, line);	/* save for shell command */
-	*argp++ = strdup("!");		/* No room in string to get this */
-	margc++;
-	cp++;
-    }
-    while ((c = *cp)) {
-	int inquote = 0;
-	while (isspace(c))
-	    c = *++cp;
-	if (c == '\0')
-	    break;
-	*argp++ = cp;
-	margc += 1;
-	for (cp2 = cp; c != '\0'; c = *++cp) {
-	    if (inquote) {
-		if (c == inquote) {
-		    inquote = 0;
-		    continue;
-		}
-	    } else {
-		if (c == '\\') {
-		    if ((c = *++cp) == '\0')
-			break;
-		} else if (c == '"') {
-		    inquote = '"';
-		    continue;
-		} else if (c == '\'') {
-		    inquote = '\'';
-		    continue;
-		} else if (isspace(c))
-		    break;
-	    }
-	    *cp2++ = c;
-	}
-	*cp2 = '\0';
-	if (c == '\0')
-	    break;
-	cp++;
-    }
-    *argp++ = 0;
-}
-
-/*
- * Make a character string into a number.
- *
- * Todo:  1.  Could take random integers (12, 0x12, 012, 0b1).
- */
-
-static int
-special(char *s)
-{
-	char c;
-	char b;
-
-	switch (*s) {
-	case '^':
-		b = *++s;
-		if (b == '?') {
-		    c = b | 0x40;		/* DEL */
-		} else {
-		    c = b & 0x1f;
-		}
-		break;
-	default:
-		c = *s;
-		break;
-	}
-	return c;
-}
-
-/*
- * Construct a control character sequence
- * for a special character.
- */
-static const char *
-control(cc_t c)
-{
-	static char buf[5];
-	/*
-	 * The only way I could get the Sun 3.5 compiler
-	 * to shut up about
-	 *	if ((unsigned int)c >= 0x80)
-	 * was to assign "c" to an unsigned int variable...
-	 * Arggg....
-	 */
-	unsigned int uic = (unsigned int)c;
-
-	if (uic == 0x7f)
-		return ("^?");
-	if (c == (cc_t)_POSIX_VDISABLE) {
-		return "off";
-	}
-	if (uic >= 0x80) {
-		buf[0] = '\\';
-		buf[1] = ((c>>6)&07) + '0';
-		buf[2] = ((c>>3)&07) + '0';
-		buf[3] = (c&07) + '0';
-		buf[4] = 0;
-	} else if (uic >= 0x20) {
-		buf[0] = c;
-		buf[1] = 0;
-	} else {
-		buf[0] = '^';
-		buf[1] = '@'+c;
-		buf[2] = 0;
-	}
-	return (buf);
-}
-
-/*
- *	The following are data structures and routines for
- *	the "send" command.
- *
- */
-
-struct sendlist {
-    const char	*name;		/* How user refers to it (case independent) */
-    const char	*help;		/* Help information (0 ==> no help) */
-    int		needconnect;	/* Need to be connected */
-    int		narg;		/* Number of arguments */
-    int		(*handler)(char *, ...); /* Routine to perform (for special ops) */
-    int		nbyte;		/* Number of bytes to send this command */
-    int		what;		/* Character to be sent (<0 ==> special) */
-};
-
-
-static int
-	send_esc(void),
-	send_help(void),
-	send_docmd(char *),
-	send_dontcmd(char *),
-	send_willcmd(char *),
-	send_wontcmd(char *);
-
-static struct sendlist Sendlist[] = {
-    { "ao",	"Send Telnet Abort output",	1, 0, NULL, 2, AO },
-    { "ayt",	"Send Telnet 'Are You There'",	1, 0, NULL, 2, AYT },
-    { "brk",	"Send Telnet Break",		1, 0, NULL, 2, BREAK },
-    { "break",	NULL,				1, 0, NULL, 2, BREAK },
-    { "ec",	"Send Telnet Erase Character",	1, 0, NULL, 2, EC },
-    { "el",	"Send Telnet Erase Line",	1, 0, NULL, 2, EL },
-    { "escape",	"Send current escape character",1, 0, (int (*)(char *, ...))send_esc, 1, 0 },
-    { "ga",	"Send Telnet 'Go Ahead' sequence", 1, 0, NULL, 2, GA },
-    { "ip",	"Send Telnet Interrupt Process",1, 0, NULL, 2, IP },
-    { "intp",	NULL,				1, 0, NULL, 2, IP },
-    { "interrupt", NULL,			1, 0, NULL, 2, IP },
-    { "intr",	NULL,				1, 0, NULL, 2, IP },
-    { "nop",	"Send Telnet 'No operation'",	1, 0, NULL, 2, NOP },
-    { "eor",	"Send Telnet 'End of Record'",	1, 0, NULL, 2, EOR },
-    { "abort",	"Send Telnet 'Abort Process'",	1, 0, NULL, 2, ABORT },
-    { "susp",	"Send Telnet 'Suspend Process'",1, 0, NULL, 2, SUSP },
-    { "eof",	"Send Telnet End of File Character", 1, 0, NULL, 2, xEOF },
-    { "synch",	"Perform Telnet 'Synch operation'", 1, 0, (int (*)(char *, ...))dosynch, 2, 0 },
-    { "getstatus", "Send request for STATUS",	1, 0, (int (*)(char *, ...))get_status, 6, 0 },
-    { "?",	"Display send options",		0, 0, (int (*)(char *, ...))send_help, 0, 0 },
-    { "help",	NULL,				0, 0, (int (*)(char *, ...))send_help, 0, 0 },
-    { "do",	NULL,				0, 1, (int (*)(char *, ...))send_docmd, 3, 0 },
-    { "dont",	NULL,				0, 1, (int (*)(char *, ...))send_dontcmd, 3, 0 },
-    { "will",	NULL,				0, 1, (int (*)(char *, ...))send_willcmd, 3, 0 },
-    { "wont",	NULL,				0, 1, (int (*)(char *, ...))send_wontcmd, 3, 0 },
-    { NULL,	NULL,				0, 0, NULL, 0, 0 }
-};
-
-#define	GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \
-				sizeof(struct sendlist)))
-
-static int
-sendcmd(int argc, char *argv[])
-{
-    int count;		/* how many bytes we are going to need to send */
-    int i;
-    struct sendlist *s;	/* pointer to current command */
-    int success = 0;
-    int needconnect = 0;
-
-    if (argc < 2) {
-	printf("need at least one argument for 'send' command\n");
-	printf("'send ?' for help\n");
-	return 0;
-    }
-    /*
-     * First, validate all the send arguments.
-     * In addition, we see how much space we are going to need, and
-     * whether or not we will be doing a "SYNCH" operation (which
-     * flushes the network queue).
-     */
-    count = 0;
-    for (i = 1; i < argc; i++) {
-	s = GETSEND(argv[i]);
-	if (s == 0) {
-	    printf("Unknown send argument '%s'\n'send ?' for help.\n",
-			argv[i]);
-	    return 0;
-	} else if (Ambiguous((void *)s)) {
-	    printf("Ambiguous send argument '%s'\n'send ?' for help.\n",
-			argv[i]);
-	    return 0;
-	}
-	if (i + s->narg >= argc) {
-	    fprintf(stderr,
-	    "Need %d argument%s to 'send %s' command.  'send %s ?' for help.\n",
-		s->narg, s->narg == 1 ? "" : "s", s->name, s->name);
-	    return 0;
-	}
-	count += s->nbyte;
-	if ((void *)s->handler == (void *)send_help) {
-	    send_help();
-	    return 0;
-	}
-
-	i += s->narg;
-	needconnect += s->needconnect;
-    }
-    if (!connected && needconnect) {
-	printf("?Need to be connected first.\n");
-	printf("'send ?' for help\n");
-	return 0;
-    }
-    /* Now, do we have enough room? */
-    if (NETROOM() < count) {
-	printf("There is not enough room in the buffer TO the network\n");
-	printf("to process your request.  Nothing will be done.\n");
-	printf("('send synch' will throw away most data in the network\n");
-	printf("buffer, if this might help.)\n");
-	return 0;
-    }
-    /* OK, they are all OK, now go through again and actually send */
-    count = 0;
-    for (i = 1; i < argc; i++) {
-	if ((s = GETSEND(argv[i])) == 0) {
-	    fprintf(stderr, "Telnet 'send' error - argument disappeared!\n");
-	    quit();
-	    /*NOTREACHED*/
-	}
-	if (s->handler) {
-	    count++;
-	    success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0,
-				  (s->narg > 1) ? argv[i+2] : 0);
-	    i += s->narg;
-	} else {
-	    NET2ADD(IAC, s->what);
-	    printoption("SENT", IAC, s->what);
-	}
-    }
-    return (count == success);
-}
-
-static int
-send_esc(void)
-{
-    NETADD(escape);
-    return 1;
-}
-
-static int
-send_docmd(char *name)
-{
-    return(send_tncmd(send_do, "do", name));
-}
-
-static int
-send_dontcmd(name)
-    char *name;
-{
-    return(send_tncmd(send_dont, "dont", name));
-}
-
-static int
-send_willcmd(char *name)
-{
-    return(send_tncmd(send_will, "will", name));
-}
-
-static int
-send_wontcmd(char *name)
-{
-    return(send_tncmd(send_wont, "wont", name));
-}
-
-static int
-send_tncmd(void (*func)(int, int), const char *cmd, char *name)
-{
-    char **cpp;
-    extern char *telopts[];
-    int val = 0;
-
-    if (isprefix(name, "help") || isprefix(name, "?")) {
-	int col, len;
-
-	printf("usage: send %s <value|option>\n", cmd);
-	printf("\"value\" must be from 0 to 255\n");
-	printf("Valid options are:\n\t");
-
-	col = 8;
-	for (cpp = telopts; *cpp; cpp++) {
-	    len = strlen(*cpp) + 3;
-	    if (col + len > 65) {
-		printf("\n\t");
-		col = 8;
-	    }
-	    printf(" \"%s\"", *cpp);
-	    col += len;
-	}
-	printf("\n");
-	return 0;
-    }
-    cpp = (char **)genget(name, telopts, sizeof(char *));
-    if (Ambiguous(cpp)) {
-	fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n",
-					name, cmd);
-	return 0;
-    }
-    if (cpp) {
-	val = cpp - telopts;
-    } else {
-	char *cp = name;
-
-	while (*cp >= '0' && *cp <= '9') {
-	    val *= 10;
-	    val += *cp - '0';
-	    cp++;
-	}
-	if (*cp != 0) {
-	    fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n",
-					name, cmd);
-	    return 0;
-	} else if (val < 0 || val > 255) {
-	    fprintf(stderr, "'%s': bad value ('send %s ?' for help).\n",
-					name, cmd);
-	    return 0;
-	}
-    }
-    if (!connected) {
-	printf("?Need to be connected first.\n");
-	return 0;
-    }
-    (*func)(val, 1);
-    return 1;
-}
-
-static int
-send_help(void)
-{
-    struct sendlist *s;	/* pointer to current command */
-    for (s = Sendlist; s->name; s++) {
-	if (s->help)
-	    printf("%-15s %s\n", s->name, s->help);
-    }
-    return(0);
-}
-
-/*
- * The following are the routines and data structures referred
- * to by the arguments to the "toggle" command.
- */
-
-static int
-lclchars(void)
-{
-    donelclchars = 1;
-    return 1;
-}
-
-static int
-togdebug(void)
-{
-#ifndef	NOT43
-    if (net > 0 &&
-	(SetSockOpt(net, SOL_SOCKET, SO_DEBUG, telnet_debug)) < 0) {
-	    perror("setsockopt (SO_DEBUG)");
-    }
-#else	/* NOT43 */
-    if (telnet_debug) {
-	if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0)
-	    perror("setsockopt (SO_DEBUG)");
-    } else
-	printf("Cannot turn off socket debugging\n");
-#endif	/* NOT43 */
-    return 1;
-}
-
-
-static int
-togcrlf(void)
-{
-    if (crlf) {
-	printf("Will send carriage returns as telnet <CR><LF>.\n");
-    } else {
-	printf("Will send carriage returns as telnet <CR><NUL>.\n");
-    }
-    return 1;
-}
-
-int binmode;
-
-static int
-togbinary(int val)
-{
-    donebinarytoggle = 1;
-
-    if (val >= 0) {
-	binmode = val;
-    } else {
-	if (my_want_state_is_will(TELOPT_BINARY) &&
-				my_want_state_is_do(TELOPT_BINARY)) {
-	    binmode = 1;
-	} else if (my_want_state_is_wont(TELOPT_BINARY) &&
-				my_want_state_is_dont(TELOPT_BINARY)) {
-	    binmode = 0;
-	}
-	val = binmode ? 0 : 1;
-    }
-
-    if (val == 1) {
-	if (my_want_state_is_will(TELOPT_BINARY) &&
-					my_want_state_is_do(TELOPT_BINARY)) {
-	    printf("Already operating in binary mode with remote host.\n");
-	} else {
-	    printf("Negotiating binary mode with remote host.\n");
-	    tel_enter_binary(3);
-	}
-    } else {
-	if (my_want_state_is_wont(TELOPT_BINARY) &&
-					my_want_state_is_dont(TELOPT_BINARY)) {
-	    printf("Already in network ascii mode with remote host.\n");
-	} else {
-	    printf("Negotiating network ascii mode with remote host.\n");
-	    tel_leave_binary(3);
-	}
-    }
-    return 1;
-}
-
-static int
-togrbinary(int val)
-{
-    donebinarytoggle = 1;
-
-    if (val == -1)
-	val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1;
-
-    if (val == 1) {
-	if (my_want_state_is_do(TELOPT_BINARY)) {
-	    printf("Already receiving in binary mode.\n");
-	} else {
-	    printf("Negotiating binary mode on input.\n");
-	    tel_enter_binary(1);
-	}
-    } else {
-	if (my_want_state_is_dont(TELOPT_BINARY)) {
-	    printf("Already receiving in network ascii mode.\n");
-	} else {
-	    printf("Negotiating network ascii mode on input.\n");
-	    tel_leave_binary(1);
-	}
-    }
-    return 1;
-}
-
-static int
-togxbinary(int val)
-{
-    donebinarytoggle = 1;
-
-    if (val == -1)
-	val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1;
-
-    if (val == 1) {
-	if (my_want_state_is_will(TELOPT_BINARY)) {
-	    printf("Already transmitting in binary mode.\n");
-	} else {
-	    printf("Negotiating binary mode on output.\n");
-	    tel_enter_binary(2);
-	}
-    } else {
-	if (my_want_state_is_wont(TELOPT_BINARY)) {
-	    printf("Already transmitting in network ascii mode.\n");
-	} else {
-	    printf("Negotiating network ascii mode on output.\n");
-	    tel_leave_binary(2);
-	}
-    }
-    return 1;
-}
-
-struct togglelist {
-    const char	*name;		/* name of toggle */
-    const char	*help;		/* help message */
-    int		(*handler)(int); /* routine to do actual setting */
-    int		*variable;
-    const char	*actionexplanation;
-};
-
-static struct togglelist Togglelist[] = {
-    { "autoflush",
-	"flushing of output when sending interrupt characters",
-	    0,
-		&autoflush,
-		    "flush output when sending interrupt characters" },
-    { "autosynch",
-	"automatic sending of interrupt characters in urgent mode",
-	    0,
-		&autosynch,
-		    "send interrupt characters in urgent mode" },
-    { "skiprc",
-	"don't read ~/.telnetrc file",
-	    0,
-		&skiprc,
-		    "skip reading of ~/.telnetrc file" },
-    { "binary",
-	"sending and receiving of binary data",
-	    togbinary,
-		0,
-		    0 },
-    { "inbinary",
-	"receiving of binary data",
-	    togrbinary,
-		0,
-		    0 },
-    { "outbinary",
-	"sending of binary data",
-	    togxbinary,
-		0,
-		    0 },
-    { "crlf",
-	"sending carriage returns as telnet <CR><LF>",
-	    (int (*)(int))togcrlf,
-		&crlf,
-		    0 },
-    { "crmod",
-	"mapping of received carriage returns",
-	    0,
-		&crmod,
-		    "map carriage return on output" },
-    { "localchars",
-	"local recognition of certain control characters",
-	    (int (*)(int))lclchars,
-		&localchars,
-		    "recognize certain control characters" },
-    { " ", "", NULL, NULL, NULL },		/* empty line */
-    { "debug",
-	"debugging",
-	    (int (*)(int))togdebug,
-		&telnet_debug,
-		    "turn on socket level debugging" },
-    { "netdata",
-	"printing of hexadecimal network data (debugging)",
-	    0,
-		&netdata,
-		    "print hexadecimal representation of network traffic" },
-    { "prettydump",
-	"output of \"netdata\" to user readable format (debugging)",
-	    0,
-		&prettydump,
-		    "print user readable output for \"netdata\"" },
-    { "options",
-	"viewing of options processing (debugging)",
-	    0,
-		&showoptions,
-		    "show option processing" },
-    { "termdata",
-	"(debugging) toggle printing of hexadecimal terminal data",
-	    0,
-		&termdata,
-		    "print hexadecimal representation of terminal traffic" },
-    { "?",
-	NULL,
-	    (int (*)(int))togglehelp,
-		NULL,
-		    NULL },
-    { NULL, NULL, NULL, NULL, NULL },
-    { "help",
-	NULL,
-	    (int (*)(int))togglehelp,
-		NULL,
-		    NULL },
-    { NULL, NULL, NULL, NULL, NULL }
-};
-
-static int
-togglehelp(void)
-{
-    struct togglelist *c;
-
-    for (c = Togglelist; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s toggle %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-    printf("\n");
-    printf("%-15s %s\n", "?", "display help information");
-    return 0;
-}
-
-static void
-settogglehelp(int set)
-{
-    struct togglelist *c;
-
-    for (c = Togglelist; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s %s\n", c->name, set ? "enable" : "disable",
-						c->help);
-	    else
-		printf("\n");
-	}
-    }
-}
-
-#define	GETTOGGLE(name) (struct togglelist *) \
-		genget(name, (char **) Togglelist, sizeof(struct togglelist))
-
-static int
-toggle(int argc, char *argv[])
-{
-    int retval = 1;
-    char *name;
-    struct togglelist *c;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'toggle' command.  'toggle ?' for help.\n");
-	return 0;
-    }
-    argc--;
-    argv++;
-    while (argc--) {
-	name = *argv++;
-	c = GETTOGGLE(name);
-	if (Ambiguous((void *)c)) {
-	    fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n",
-					name);
-	    return 0;
-	} else if (c == 0) {
-	    fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n",
-					name);
-	    return 0;
-	} else {
-	    if (c->variable) {
-		*c->variable = !*c->variable;		/* invert it */
-		if (c->actionexplanation) {
-		    printf("%s %s.\n", *c->variable? "Will" : "Won't",
-							c->actionexplanation);
-		}
-	    }
-	    if (c->handler) {
-		retval &= (*c->handler)(-1);
-	    }
-	}
-    }
-    return retval;
-}
-
-/*
- * The following perform the "set" command.
- */
-
-#ifdef	USE_TERMIO
-struct termio new_tc = { 0, 0, 0, 0, {}, 0, 0 };
-#endif
-
-struct setlist {
-    const char *name;			/* name */
-    const char *help;			/* help information */
-    void (*handler)(char *);
-    cc_t *charp;			/* where it is located at */
-};
-
-static struct setlist Setlist[] = {
-#ifdef	KLUDGELINEMODE
-    { "echo", 	"character to toggle local echoing on/off", NULL, &echoc },
-#endif
-    { "escape",	"character to escape back to telnet command mode", NULL, &escape },
-    { "rlogin", "rlogin escape character", 0, &rlogin },
-    { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile},
-    { " ", "", NULL, NULL },
-    { " ", "The following need 'localchars' to be toggled true", NULL, NULL },
-    { "flushoutput", "character to cause an Abort Output", NULL, termFlushCharp },
-    { "interrupt", "character to cause an Interrupt Process", NULL, termIntCharp },
-    { "quit",	"character to cause an Abort process", NULL, termQuitCharp },
-    { "eof",	"character to cause an EOF ", NULL, termEofCharp },
-    { " ", "", NULL, NULL },
-    { " ", "The following are for local editing in linemode", NULL, NULL },
-    { "erase",	"character to use to erase a character", NULL, termEraseCharp },
-    { "kill",	"character to use to erase a line", NULL, termKillCharp },
-    { "lnext",	"character to use for literal next", NULL, termLiteralNextCharp },
-    { "susp",	"character to cause a Suspend Process", NULL, termSuspCharp },
-    { "reprint", "character to use for line reprint", NULL, termRprntCharp },
-    { "worderase", "character to use to erase a word", NULL, termWerasCharp },
-    { "start",	"character to use for XON", NULL, termStartCharp },
-    { "stop",	"character to use for XOFF", NULL, termStopCharp },
-    { "forw1",	"alternate end of line character", NULL, termForw1Charp },
-    { "forw2",	"alternate end of line character", NULL, termForw2Charp },
-    { "ayt",	"alternate AYT character", NULL, termAytCharp },
-    { NULL, NULL, NULL, NULL }
-};
-
-static struct setlist *
-getset(char *name)
-{
-    return (struct setlist *)
-		genget(name, (char **) Setlist, sizeof(struct setlist));
-}
-
-void
-set_escape_char(char *s)
-{
-	if (rlogin != _POSIX_VDISABLE) {
-		rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE;
-		printf("Telnet rlogin escape character is '%s'.\n",
-					control(rlogin));
-	} else {
-		escape = (s && *s) ? special(s) : _POSIX_VDISABLE;
-		printf("Telnet escape character is '%s'.\n", control(escape));
-	}
-}
-
-static int
-setcmd(int argc, char *argv[])
-{
-    int value;
-    struct setlist *ct;
-    struct togglelist *c;
-
-    if (argc < 2 || argc > 3) {
-	printf("Format is 'set Name Value'\n'set ?' for help.\n");
-	return 0;
-    }
-    if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) {
-	for (ct = Setlist; ct->name; ct++)
-	    printf("%-15s %s\n", ct->name, ct->help);
-	printf("\n");
-	settogglehelp(1);
-	printf("%-15s %s\n", "?", "display help information");
-	return 0;
-    }
-
-    ct = getset(argv[1]);
-    if (ct == 0) {
-	c = GETTOGGLE(argv[1]);
-	if (c == 0) {
-	    fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n",
-			argv[1]);
-	    return 0;
-	} else if (Ambiguous((void *)c)) {
-	    fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
-			argv[1]);
-	    return 0;
-	}
-	if (c->variable) {
-	    if ((argc == 2) || (strcmp("on", argv[2]) == 0))
-		*c->variable = 1;
-	    else if (strcmp("off", argv[2]) == 0)
-		*c->variable = 0;
-	    else {
-		printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n");
-		return 0;
-	    }
-	    if (c->actionexplanation) {
-		printf("%s %s.\n", *c->variable? "Will" : "Won't",
-							c->actionexplanation);
-	    }
-	}
-	if (c->handler)
-	    (*c->handler)(1);
-    } else if (argc != 3) {
-	printf("Format is 'set Name Value'\n'set ?' for help.\n");
-	return 0;
-    } else if (Ambiguous((void *)ct)) {
-	fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
-			argv[1]);
-	return 0;
-    } else if (ct->handler) {
-	(*ct->handler)(argv[2]);
-	printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp);
-    } else {
-	if (strcmp("off", argv[2])) {
-	    value = special(argv[2]);
-	} else {
-	    value = _POSIX_VDISABLE;
-	}
-	*(ct->charp) = (cc_t)value;
-	printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
-    }
-    slc_check();
-    return 1;
-}
-
-static int
-unsetcmd(int argc, char *argv[])
-{
-    struct setlist *ct;
-    struct togglelist *c;
-    char *name;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'unset' command.  'unset ?' for help.\n");
-	return 0;
-    }
-    if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) {
-	for (ct = Setlist; ct->name; ct++)
-	    printf("%-15s %s\n", ct->name, ct->help);
-	printf("\n");
-	settogglehelp(0);
-	printf("%-15s %s\n", "?", "display help information");
-	return 0;
-    }
-
-    argc--;
-    argv++;
-    while (argc--) {
-	name = *argv++;
-	ct = getset(name);
-	if (ct == 0) {
-	    c = GETTOGGLE(name);
-	    if (c == 0) {
-		fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n",
-			name);
-		return 0;
-	    } else if (Ambiguous((void *)c)) {
-		fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
-			name);
-		return 0;
-	    }
-	    if (c->variable) {
-		*c->variable = 0;
-		if (c->actionexplanation) {
-		    printf("%s %s.\n", *c->variable? "Will" : "Won't",
-							c->actionexplanation);
-		}
-	    }
-	    if (c->handler)
-		(*c->handler)(0);
-	} else if (Ambiguous((void *)ct)) {
-	    fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
-			name);
-	    return 0;
-	} else if (ct->handler) {
-	    (*ct->handler)(0);
-	    printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp);
-	} else {
-	    *(ct->charp) = _POSIX_VDISABLE;
-	    printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
-	}
-    }
-    return 1;
-}
-
-/*
- * The following are the data structures and routines for the
- * 'mode' command.
- */
-#ifdef	KLUDGELINEMODE
-extern int kludgelinemode;
-
-static int
-dokludgemode(void)
-{
-    kludgelinemode = 1;
-    send_wont(TELOPT_LINEMODE, 1);
-    send_dont(TELOPT_SGA, 1);
-    send_dont(TELOPT_ECHO, 1);
-    return 1;
-}
-#endif
-
-static int
-dolinemode(void)
-{
-#ifdef	KLUDGELINEMODE
-    if (kludgelinemode)
-	send_dont(TELOPT_SGA, 1);
-#endif
-    send_will(TELOPT_LINEMODE, 1);
-    send_dont(TELOPT_ECHO, 1);
-    return 1;
-}
-
-static int
-docharmode(void)
-{
-#ifdef	KLUDGELINEMODE
-    if (kludgelinemode)
-	send_do(TELOPT_SGA, 1);
-    else
-#endif
-    send_wont(TELOPT_LINEMODE, 1);
-    send_do(TELOPT_ECHO, 1);
-    return 1;
-}
-
-static int
-dolmmode(int bit, int on)
-{
-    unsigned char c;
-    extern int linemode;
-
-    if (my_want_state_is_wont(TELOPT_LINEMODE)) {
-	printf("?Need to have LINEMODE option enabled first.\n");
-	printf("'mode ?' for help.\n");
-	return 0;
-    }
-
-    if (on)
-	c = (linemode | bit);
-    else
-	c = (linemode & ~bit);
-    lm_mode(&c, 1, 1);
-    return 1;
-}
-
-static int
-setmod(int bit)
-{
-    return dolmmode(bit, 1);
-}
-
-static int
-clearmode(int bit)
-{
-    return dolmmode(bit, 0);
-}
-
-struct modelist {
-	const char	*name;	/* command name */
-	const char	*help;	/* help string */
-	int	(*handler)(int);/* routine which executes command */
-	int	needconnect;	/* Do we need to be connected to execute? */
-	int	arg1;
-};
-
-static struct modelist ModeList[] = {
-    { "character", "Disable LINEMODE option",	(int (*)(int))docharmode, 1, 0 },
-#ifdef	KLUDGELINEMODE
-    { "",	"(or disable obsolete line-by-line mode)", NULL, 0, 0 },
-#endif
-    { "line",	"Enable LINEMODE option",	(int (*)(int))dolinemode, 1, 0 },
-#ifdef	KLUDGELINEMODE
-    { "",	"(or enable obsolete line-by-line mode)", NULL, 0, 0 },
-#endif
-    { "", "", NULL, 0, 0 },
-    { "",	"These require the LINEMODE option to be enabled", NULL, 0, 0 },
-    { "isig",	"Enable signal trapping",	setmod, 1, MODE_TRAPSIG },
-    { "+isig",	0,				setmod, 1, MODE_TRAPSIG },
-    { "-isig",	"Disable signal trapping",	clearmode, 1, MODE_TRAPSIG },
-    { "edit",	"Enable character editing",	setmod, 1, MODE_EDIT },
-    { "+edit",	0,				setmod, 1, MODE_EDIT },
-    { "-edit",	"Disable character editing",	clearmode, 1, MODE_EDIT },
-    { "softtabs", "Enable tab expansion",	setmod, 1, MODE_SOFT_TAB },
-    { "+softtabs", 0,				setmod, 1, MODE_SOFT_TAB },
-    { "-softtabs", "Disable character editing",	clearmode, 1, MODE_SOFT_TAB },
-    { "litecho", "Enable literal character echo", setmod, 1, MODE_LIT_ECHO },
-    { "+litecho", 0,				setmod, 1, MODE_LIT_ECHO },
-    { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO },
-    { "help",	0,				(int (*)(int))modehelp, 0, 0 },
-#ifdef	KLUDGELINEMODE
-    { "kludgeline", 0,				(int (*)(int))dokludgemode, 1, 0 },
-#endif
-    { "", "", NULL, 0, 0 },
-    { "?",	"Print help information",	(int (*)(int))modehelp, 0, 0 },
-    { NULL, NULL, NULL, 0, 0 },
-};
-
-
-static int
-modehelp(void)
-{
-    struct modelist *mt;
-
-    printf("format is:  'mode Mode', where 'Mode' is one of:\n\n");
-    for (mt = ModeList; mt->name; mt++) {
-	if (mt->help) {
-	    if (*mt->help)
-		printf("%-15s %s\n", mt->name, mt->help);
-	    else
-		printf("\n");
-	}
-    }
-    return 0;
-}
-
-#define	GETMODECMD(name) (struct modelist *) \
-		genget(name, (char **) ModeList, sizeof(struct modelist))
-
-static int
-modecmd(int argc, char *argv[])
-{
-    struct modelist *mt;
-
-    if (argc != 2) {
-	printf("'mode' command requires an argument\n");
-	printf("'mode ?' for help.\n");
-    } else if ((mt = GETMODECMD(argv[1])) == 0) {
-	fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]);
-    } else if (Ambiguous((void *)mt)) {
-	fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]);
-    } else if (mt->needconnect && !connected) {
-	printf("?Need to be connected first.\n");
-	printf("'mode ?' for help.\n");
-    } else if (mt->handler) {
-	return (*mt->handler)(mt->arg1);
-    }
-    return 0;
-}
-
-/*
- * The following data structures and routines implement the
- * "display" command.
- */
-
-static int
-display(int argc, char *argv[])
-{
-    struct togglelist *tl;
-    struct setlist *sl;
-
-#define	dotog(tl)	if (tl->variable && tl->actionexplanation) { \
-			    if (*tl->variable) { \
-				printf("will"); \
-			    } else { \
-				printf("won't"); \
-			    } \
-			    printf(" %s.\n", tl->actionexplanation); \
-			}
-
-#define	doset(sl)   if (sl->name && *sl->name != ' ') { \
-			if (sl->handler == 0) \
-			    printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \
-			else \
-			    printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \
-		    }
-
-    if (argc == 1) {
-	for (tl = Togglelist; tl->name; tl++) {
-	    dotog(tl);
-	}
-	printf("\n");
-	for (sl = Setlist; sl->name; sl++) {
-	    doset(sl);
-	}
-    } else {
-	int i;
-
-	for (i = 1; i < argc; i++) {
-	    sl = getset(argv[i]);
-	    tl = GETTOGGLE(argv[i]);
-	    if (Ambiguous((void *)sl) || Ambiguous((void *)tl)) {
-		printf("?Ambiguous argument '%s'.\n", argv[i]);
-		return 0;
-	    } else if (!sl && !tl) {
-		printf("?Unknown argument '%s'.\n", argv[i]);
-		return 0;
-	    } else {
-		if (tl) {
-		    dotog(tl);
-		}
-		if (sl) {
-		    doset(sl);
-		}
-	    }
-	}
-    }
-/*@*/optionstatus();
-    return 1;
-#undef	doset
-#undef	dotog
-}
-
-/*
- * The following are the data structures, and many of the routines,
- * relating to command processing.
- */
-
-/*
- * Set the escape character.
- */
-static int
-setescape(int argc, char *argv[])
-{
-	char *arg;
-	char buf[50];
-
-	printf(
-	    "Deprecated usage - please use 'set escape%s%s' in the future.\n",
-				(argc > 2)? " ":"", (argc > 2)? argv[1]: "");
-	if (argc > 2)
-		arg = argv[1];
-	else {
-		printf("new escape character: ");
-		(void) fgets(buf, sizeof(buf), stdin);
-		arg = buf;
-	}
-	if (arg[0] != '\0')
-		escape = arg[0];
-	(void) fflush(stdout);
-	return 1;
-}
-
-static int
-togcrmod(void)
-{
-    crmod = !crmod;
-    printf("Deprecated usage - please use 'toggle crmod' in the future.\n");
-    printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't");
-    (void) fflush(stdout);
-    return 1;
-}
-
-static int
-suspend(void)
-{
-#ifdef	SIGTSTP
-    setcommandmode();
-    {
-	long oldrows, oldcols, newrows, newcols, err_;
-
-	err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
-	(void) kill(0, SIGTSTP);
-	/*
-	 * If we didn't get the window size before the SUSPEND, but we
-	 * can get them now (?), then send the NAWS to make sure that
-	 * we are set up for the right window size.
-	 */
-	if (TerminalWindowSize(&newrows, &newcols) && connected &&
-	    (err_ || ((oldrows != newrows) || (oldcols != newcols)))) {
-		sendnaws();
-	}
-    }
-    /* reget parameters in case they were changed */
-    TerminalSaveState();
-    setconnmode(0);
-#else
-    printf("Suspend is not supported.  Try the '!' command instead\n");
-#endif
-    return 1;
-}
-
-static int
-shell(int argc, char *argv[] __unused)
-{
-    long oldrows, oldcols, newrows, newcols, err_;
-
-    setcommandmode();
-
-    err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
-    switch(vfork()) {
-    case -1:
-	perror("Fork failed\n");
-	break;
-
-    case 0:
-	{
-	    /*
-	     * Fire up the shell in the child.
-	     */
-	    const char *shellp, *shellname;
-
-	    shellp = getenv("SHELL");
-	    if (shellp == NULL)
-		shellp = "/bin/sh";
-	    if ((shellname = strrchr(shellp, '/')) == 0)
-		shellname = shellp;
-	    else
-		shellname++;
-	    if (argc > 1)
-		execl(shellp, shellname, "-c", &saveline[1], (char *)0);
-	    else
-		execl(shellp, shellname, (char *)0);
-	    perror("Execl");
-	    _exit(1);
-	}
-    default:
-	    (void)wait((int *)0);	/* Wait for the shell to complete */
-
-	    if (TerminalWindowSize(&newrows, &newcols) && connected &&
-		(err_ || ((oldrows != newrows) || (oldcols != newcols)))) {
-		    sendnaws();
-	    }
-	    break;
-    }
-    return 1;
-}
-
-static int
-bye(int argc, char *argv[])
-{
-    extern int resettermname;
-
-    if (connected) {
-	(void) shutdown(net, 2);
-	printf("Connection closed.\n");
-	(void) NetClose(net);
-	connected = 0;
-	resettermname = 1;
-	/* reset options */
-	tninit();
-    }
-    if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) {
-	longjmp(toplevel, 1);
-	/* NOTREACHED */
-    }
-    return 1;			/* Keep lint, etc., happy */
-}
-
-void
-quit(void)
-{
-	(void) call(bye, "bye", "fromquit", 0);
-	Exit(0);
-}
-
-static int
-logout(void)
-{
-	send_do(TELOPT_LOGOUT, 1);
-	(void) netflush();
-	return 1;
-}
-
-
-/*
- * The SLC command.
- */
-
-struct slclist {
-	const char	*name;
-	const char	*help;
-	void	(*handler)(int);
-	int	arg;
-};
-
-static void slc_help(void);
-
-struct slclist SlcList[] = {
-    { "export",	"Use local special character definitions",
-						(void (*)(int))slc_mode_export,	0 },
-    { "import",	"Use remote special character definitions",
-						slc_mode_import,	1 },
-    { "check",	"Verify remote special character definitions",
-						slc_mode_import,	0 },
-    { "help",	NULL,				(void (*)(int))slc_help,		0 },
-    { "?",	"Print help information",	(void (*)(int))slc_help,		0 },
-    { NULL, NULL, NULL, 0 },
-};
-
-static void
-slc_help(void)
-{
-    struct slclist *c;
-
-    for (c = SlcList; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-}
-
-static struct slclist *
-getslc(char *name)
-{
-    return (struct slclist *)
-		genget(name, (char **) SlcList, sizeof(struct slclist));
-}
-
-static int
-slccmd(int argc, char *argv[])
-{
-    struct slclist *c;
-
-    if (argc != 2) {
-	fprintf(stderr,
-	    "Need an argument to 'slc' command.  'slc ?' for help.\n");
-	return 0;
-    }
-    c = getslc(argv[1]);
-    if (c == 0) {
-	fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (Ambiguous((void *)c)) {
-	fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    (*c->handler)(c->arg);
-    slcstate();
-    return 1;
-}
-
-/*
- * The ENVIRON command.
- */
-
-struct envlist {
-	const char	*name;
-	const char	*help;
-	void	(*handler)(unsigned char *, unsigned char *);
-	int	narg;
-};
-
-extern struct env_lst *
-	env_define(const unsigned char *, unsigned char *);
-extern void
-	env_undefine(unsigned char *),
-	env_export(const unsigned char *),
-	env_unexport(const unsigned char *),
-	env_send(unsigned char *),
-#if defined(OLD_ENVIRON) && defined(ENV_HACK)
-	env_varval(unsigned char *),
-#endif
-	env_list(void);
-static void
-	env_help(void);
-
-struct envlist EnvList[] = {
-    { "define",	"Define an environment variable",
-						(void (*)(unsigned char *, unsigned char *))env_define,	2 },
-    { "undefine", "Undefine an environment variable",
-						(void (*)(unsigned char *, unsigned char *))env_undefine,	1 },
-    { "export",	"Mark an environment variable for automatic export",
-						(void (*)(unsigned char *, unsigned char *))env_export,	1 },
-    { "unexport", "Don't mark an environment variable for automatic export",
-						(void (*)(unsigned char *, unsigned char *))env_unexport,	1 },
-    { "send",	"Send an environment variable", (void (*)(unsigned char *, unsigned char *))env_send,	1 },
-    { "list",	"List the current environment variables",
-						(void (*)(unsigned char *, unsigned char *))env_list,	0 },
-#if defined(OLD_ENVIRON) && defined(ENV_HACK)
-    { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)",
-						(void (*)(unsigned char *, unsigned char *))env_varval,    1 },
-#endif
-    { "help",	NULL,				(void (*)(unsigned char *, unsigned char *))env_help,		0 },
-    { "?",	"Print help information",	(void (*)(unsigned char *, unsigned char *))env_help,		0 },
-    { NULL, NULL, NULL, 0 },
-};
-
-static void
-env_help(void)
-{
-    struct envlist *c;
-
-    for (c = EnvList; c->name; c++) {
-	if (c->help) {
-	    if (*c->help)
-		printf("%-15s %s\n", c->name, c->help);
-	    else
-		printf("\n");
-	}
-    }
-}
-
-static struct envlist *
-getenvcmd(char *name)
-{
-    return (struct envlist *)
-		genget(name, (char **) EnvList, sizeof(struct envlist));
-}
-
-static int
-env_cmd(int argc, char *argv[])
-{
-    struct envlist *c;
-
-    if (argc < 2) {
-	fprintf(stderr,
-	    "Need an argument to 'environ' command.  'environ ?' for help.\n");
-	return 0;
-    }
-    c = getenvcmd(argv[1]);
-    if (c == 0) {
-	fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (Ambiguous((void *)c)) {
-	fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n",
-    				argv[1]);
-	return 0;
-    }
-    if (c->narg + 2 != argc) {
-	fprintf(stderr,
-	    "Need %s%d argument%s to 'environ %s' command.  'environ ?' for help.\n",
-		c->narg < argc + 2 ? "only " : "",
-		c->narg, c->narg == 1 ? "" : "s", c->name);
-	return 0;
-    }
-    (*c->handler)(argv[2], argv[3]);
-    return 1;
-}
-
-struct env_lst {
-	struct env_lst *next;	/* pointer to next structure */
-	struct env_lst *prev;	/* pointer to previous structure */
-	unsigned char *var;	/* pointer to variable name */
-	unsigned char *value;	/* pointer to variable value */
-	int export;		/* 1 -> export with default list of variables */
-	int welldefined;	/* A well defined variable */
-};
-
-struct env_lst envlisthead;
-
-static struct env_lst *
-env_find(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	for (ep = envlisthead.next; ep; ep = ep->next) {
-		if (strcmp(ep->var, var) == 0)
-			return(ep);
-	}
-	return(NULL);
-}
-
-void
-env_init(void)
-{
-	extern char **environ;
-	char **epp, *cp;
-	struct env_lst *ep;
-
-	for (epp = environ; *epp; epp++) {
-		if ((cp = strchr(*epp, '='))) {
-			*cp = '\0';
-			ep = env_define((unsigned char *)*epp,
-					(unsigned char *)cp+1);
-			ep->export = 0;
-			*cp = '=';
-		}
-	}
-	/*
-	 * Special case for DISPLAY variable.  If it is ":0.0" or
-	 * "unix:0.0", we have to get rid of "unix" and insert our
-	 * hostname.
-	 */
-	if ((ep = env_find("DISPLAY"))
-	    && ((*ep->value == ':')
-		|| (strncmp((char *)ep->value, "unix:", 5) == 0))) {
-		char hbuf[256+1];
-		char *cp2 = strchr((char *)ep->value, ':');
-
-		gethostname(hbuf, 256);
-		hbuf[256] = '\0';
-		cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1);
-		sprintf((char *)cp, "%s%s", hbuf, cp2);
-		free(ep->value);
-		ep->value = (unsigned char *)cp;
-	}
-	/*
-	 * If USER is not defined, but LOGNAME is, then add
-	 * USER with the value from LOGNAME.  By default, we
-	 * don't export the USER variable.
-	 */
-	if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) {
-		env_define("USER", ep->value);
-		env_unexport("USER");
-	}
-	env_export("DISPLAY");
-	env_export("PRINTER");
-}
-
-struct env_lst *
-env_define(const unsigned char *var, unsigned char *value)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var))) {
-		if (ep->var)
-			free(ep->var);
-		if (ep->value)
-			free(ep->value);
-	} else {
-		ep = (struct env_lst *)malloc(sizeof(struct env_lst));
-		ep->next = envlisthead.next;
-		envlisthead.next = ep;
-		ep->prev = &envlisthead;
-		if (ep->next)
-			ep->next->prev = ep;
-	}
-	ep->welldefined = opt_welldefined(var);
-	ep->export = 1;
-	ep->var = strdup(var);
-	ep->value = strdup(value);
-	return(ep);
-}
-
-void
-env_undefine(unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var))) {
-		ep->prev->next = ep->next;
-		if (ep->next)
-			ep->next->prev = ep->prev;
-		if (ep->var)
-			free(ep->var);
-		if (ep->value)
-			free(ep->value);
-		free(ep);
-	}
-}
-
-void
-env_export(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var)))
-		ep->export = 1;
-}
-
-void
-env_unexport(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var)))
-		ep->export = 0;
-}
-
-void
-env_send(unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if (my_state_is_wont(TELOPT_NEW_ENVIRON)
-#ifdef	OLD_ENVIRON
-	    && my_state_is_wont(TELOPT_OLD_ENVIRON)
-#endif
-		) {
-		fprintf(stderr,
-		    "Cannot send '%s': Telnet ENVIRON option not enabled\n",
-									var);
-		return;
-	}
-	ep = env_find(var);
-	if (ep == 0) {
-		fprintf(stderr, "Cannot send '%s': variable not defined\n",
-									var);
-		return;
-	}
-	env_opt_start_info();
-	env_opt_add(ep->var);
-	env_opt_end(0);
-}
-
-void
-env_list(void)
-{
-	struct env_lst *ep;
-
-	for (ep = envlisthead.next; ep; ep = ep->next) {
-		printf("%c %-20s %s\n", ep->export ? '*' : ' ',
-					ep->var, ep->value);
-	}
-}
-
-unsigned char *
-env_default(int init, int welldefined)
-{
-	static struct env_lst *nep = NULL;
-
-	if (init) {
-		nep = &envlisthead;
-		return(NULL);
-	}
-	if (nep) {
-		while ((nep = nep->next)) {
-			if (nep->export && (nep->welldefined == welldefined))
-				return(nep->var);
-		}
-	}
-	return(NULL);
-}
-
-unsigned char *
-env_getvalue(const unsigned char *var)
-{
-	struct env_lst *ep;
-
-	if ((ep = env_find(var)))
-		return(ep->value);
-	return(NULL);
-}
-
-#if defined(OLD_ENVIRON) && defined(ENV_HACK)
-void
-env_varval(unsigned char *what)
-{
-	extern int old_env_var, old_env_value, env_auto;
-	int len = strlen((char *)what);
-
-	if (len == 0)
-		goto unknown;
-
-	if (strncasecmp((char *)what, "status", len) == 0) {
-		if (env_auto)
-			printf("%s%s", "VAR and VALUE are/will be ",
-					"determined automatically\n");
-		if (old_env_var == OLD_ENV_VAR)
-			printf("VAR and VALUE set to correct definitions\n");
-		else
-			printf("VAR and VALUE definitions are reversed\n");
-	} else if (strncasecmp((char *)what, "auto", len) == 0) {
-		env_auto = 1;
-		old_env_var = OLD_ENV_VALUE;
-		old_env_value = OLD_ENV_VAR;
-	} else if (strncasecmp((char *)what, "right", len) == 0) {
-		env_auto = 0;
-		old_env_var = OLD_ENV_VAR;
-		old_env_value = OLD_ENV_VALUE;
-	} else if (strncasecmp((char *)what, "wrong", len) == 0) {
-		env_auto = 0;
-		old_env_var = OLD_ENV_VALUE;
-		old_env_value = OLD_ENV_VAR;
-	} else {
-unknown:
-		printf("Unknown \"varval\" command. (\"auto\", \"right\", \"wrong\", \"status\")\n");
-	}
-}
-#endif
-
-
-
-/*
- * Print status about the connection.
- */
-/*ARGSUSED*/
-static int
-status(int argc, char *argv[])
-{
-    if (connected) {
-	printf("Connected to %s.\n", hostname);
-	if ((argc < 2) || strcmp(argv[1], "notmuch")) {
-	    int mode = getconnmode();
-
-	    if (my_want_state_is_will(TELOPT_LINEMODE)) {
-		printf("Operating with LINEMODE option\n");
-		printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No");
-		printf("%s catching of signals\n",
-					(mode&MODE_TRAPSIG) ? "Local" : "No");
-		slcstate();
-#ifdef	KLUDGELINEMODE
-	    } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) {
-		printf("Operating in obsolete linemode\n");
-#endif
-	    } else {
-		printf("Operating in single character mode\n");
-		if (localchars)
-		    printf("Catching signals locally\n");
-	    }
-	    printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote");
-	    if (my_want_state_is_will(TELOPT_LFLOW))
-		printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No");
-	}
-    } else {
-	printf("No connection.\n");
-    }
-    printf("Escape character is '%s'.\n", control(escape));
-    (void) fflush(stdout);
-    return 1;
-}
-
-#ifdef	SIGINFO
-/*
- * Function that gets called when SIGINFO is received.
- */
-void
-ayt_status(void)
-{
-    (void) call(status, "status", "notmuch", 0);
-}
-#endif
-
-static const char *
-sockaddr_ntop(struct sockaddr *sa)
-{
-    void *addr;
-    static char addrbuf[INET6_ADDRSTRLEN];
-
-    switch (sa->sa_family) {
-    case AF_INET:
-	addr = &((struct sockaddr_in *)sa)->sin_addr;
-	break;
-    case AF_UNIX:
-	addr = &((struct sockaddr_un *)sa)->sun_path;
-	break;
-#ifdef INET6
-    case AF_INET6:
-	addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
-	break;
-#endif
-    default:
-	return NULL;
-    }
-    inet_ntop(sa->sa_family, addr, addrbuf, sizeof(addrbuf));
-    return addrbuf;
-}
-
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-static int
-setpolicy(int lnet, struct addrinfo *res, char *policy)
-{
-	char *buf;
-	int level;
-	int optname;
-
-	if (policy == NULL)
-		return 0;
-
-	buf = ipsec_set_policy(policy, strlen(policy));
-	if (buf == NULL) {
-		printf("%s\n", ipsec_strerror());
-		return -1;
-	}
-	level = res->ai_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
-	optname = res->ai_family == AF_INET ? IP_IPSEC_POLICY : IPV6_IPSEC_POLICY;
-	if (setsockopt(lnet, level, optname, buf, ipsec_get_policylen(buf)) < 0){
-		perror("setsockopt");
-		return -1;
-	}
-
-	free(buf);
-	return 0;
-}
-#endif
-
-#ifdef INET6
-/*
- * When an Address Family related error happend, check if retry with
- * another AF is possible or not.
- * Return 1, if retry with another af is OK. Else, return 0.
- */
-static int
-switch_af(struct addrinfo **aip)
-{
-    int nextaf;
-    struct addrinfo *ai;
-
-    ai = *aip;
-    nextaf = (ai->ai_family == AF_INET) ? AF_INET6 : AF_INET;
-    do
-        ai=ai->ai_next;
-    while (ai != NULL && ai->ai_family != nextaf);
-    *aip = ai;
-    if (*aip != NULL) {
-        return 1;
-    }
-    return 0;
-}
-#endif
-
-int
-tn(int argc, char *argv[])
-{
-    char *srp = 0;
-    int proto, opt;
-    int srlen;
-    int srcroute = 0, result;
-    char *cmd, *hostp = 0, *portp = 0, *user = 0;
-    char *src_addr = NULL;
-    struct addrinfo hints, *res, *res0 = NULL, *src_res, *src_res0 = NULL;
-    int error = 0, af_error = 0;
-
-    if (connected) {
-	printf("?Already connected to %s\n", hostname);
-	setuid(getuid());
-	return 0;
-    }
-    if (argc < 2) {
-	(void) strcpy(line, "open ");
-	printf("(to) ");
-	(void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin);
-	makeargv();
-	argc = margc;
-	argv = margv;
-    }
-    cmd = *argv;
-    --argc; ++argv;
-    while (argc) {
-	if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?"))
-	    goto usage;
-	if (strcmp(*argv, "-l") == 0) {
-	    --argc; ++argv;
-	    if (argc == 0)
-		goto usage;
-	    user = *argv++;
-	    --argc;
-	    continue;
-	}
-	if (strcmp(*argv, "-a") == 0) {
-	    --argc; ++argv;
-	    autologin = 1;
-	    continue;
-	}
-	if (strcmp(*argv, "-s") == 0) {
-	    --argc; ++argv;
-	    if (argc == 0)
-		goto usage;
-	    src_addr = *argv++;
-	    --argc;
-	    continue;
-	}
-	if (hostp == 0) {
-	    hostp = *argv++;
-	    --argc;
-	    continue;
-	}
-	if (portp == 0) {
-	    portp = *argv++;
-	    --argc;
-	    continue;
-	}
-    usage:
-	printf("usage: %s [-l user] [-a] [-s src_addr] host-name [port]\n", cmd);
-	setuid(getuid());
-	return 0;
-    }
-    if (hostp == 0)
-	goto usage;
-
-    if (src_addr != NULL) {
-	memset(&hints, 0, sizeof(hints));
-	hints.ai_family = family;
-	hints.ai_socktype = SOCK_STREAM;
-	error = getaddrinfo(src_addr, 0, &hints, &src_res);
-	if (error == EAI_NODATA) {
-		hints.ai_flags = 0;
-		error = getaddrinfo(src_addr, 0, &hints, &src_res);
-	}
-	if (error != 0) {
-		fprintf(stderr, "%s: %s\n", src_addr, gai_strerror(error));
-		if (error == EAI_SYSTEM)
-			fprintf(stderr, "%s: %s\n", src_addr, strerror(errno));
-		setuid(getuid());
-		return 0;
-	}
-	src_res0 = src_res;
-    }
-    if (hostp[0] == '/') {
-	struct sockaddr_un su;
-	
-	if (strlen(hostp) >= sizeof(su.sun_path)) {
-	    fprintf(stderr, "hostname too long for unix domain socket: %s",
-		    hostp);
-		goto fail;
-	}
-	memset(&su, 0, sizeof su);
-	su.sun_family = AF_UNIX;
-	strncpy(su.sun_path, hostp, sizeof su.sun_path);
-	printf("Trying %s...\n", hostp);
-	net = socket(PF_UNIX, SOCK_STREAM, 0);
-	if ( net < 0) {
-	    perror("socket");
-	    goto fail;
-	}
-	if (connect(net, (struct sockaddr *)&su, sizeof su) == -1) {
-	    perror(su.sun_path);
-	    (void) NetClose(net);
-	    goto fail;
-	}
-	goto af_unix;
-    } else if (hostp[0] == '@' || hostp[0] == '!') {
-	if (
-#ifdef INET6
-	    family == AF_INET6 ||
-#endif
-	    (hostname = strrchr(hostp, ':')) == NULL)
-	    hostname = strrchr(hostp, '@');
-	if (hostname == NULL) {
-	    hostname = hostp;
-	} else {
-	    hostname++;
-	    srcroute = 1;
-	}
-    } else
-        hostname = hostp;
-    if (!portp) {
-      telnetport = 1;
-      portp = strdup("telnet");
-    } else if (*portp == '-') {
-      portp++;
-      telnetport = 1;
-    } else
-      telnetport = 0;
-
-    memset(&hints, 0, sizeof(hints));
-    hints.ai_flags = AI_NUMERICHOST;
-    hints.ai_family = family;
-    hints.ai_socktype = SOCK_STREAM;
-    error = getaddrinfo(hostname, portp, &hints, &res);
-    if (error) {
-        hints.ai_flags = AI_CANONNAME;
-	error = getaddrinfo(hostname, portp, &hints, &res);
-    }
-    if (error != 0) {
-	fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error));
-	if (error == EAI_SYSTEM)
-	    fprintf(stderr, "%s: %s\n", hostname, strerror(errno));
-	setuid(getuid());
-	goto fail;
-    }
-    if (hints.ai_flags == AI_NUMERICHOST) {
-	/* hostname has numeric */
-        int gni_err = 1;
-
-	if (doaddrlookup)
-	    gni_err = getnameinfo(res->ai_addr, res->ai_addr->sa_len,
-				  _hostname, sizeof(_hostname) - 1, NULL, 0,
-				  NI_NAMEREQD);
-	if (gni_err != 0)
-	    (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
-	_hostname[sizeof(_hostname)-1] = '\0';
-	hostname = _hostname;
-    } else {
-	/* hostname has FQDN */
-	if (srcroute != 0)
-	    (void) strncpy(_hostname, hostname, sizeof(_hostname) - 1);
-	else if (res->ai_canonname != NULL)
-	  strcpy(_hostname, res->ai_canonname);
-	else
-	  (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
-	_hostname[sizeof(_hostname)-1] = '\0';
-	hostname = _hostname;
-    }
-    res0 = res;
- #ifdef INET6
- af_again:
- #endif
-    if (srcroute != 0) {
-        static char hostbuf[BUFSIZ];
-
-	if (af_error == 0) { /* save intermediate hostnames for retry */
-		strncpy(hostbuf, hostp, BUFSIZ - 1);
-		hostbuf[BUFSIZ - 1] = '\0';
-	} else
-		hostp = hostbuf;
-	srp = 0;
-	result = sourceroute(res, hostp, &srp, &srlen, &proto, &opt);
-	if (result == 0) {
-#ifdef INET6
-	    if (family == AF_UNSPEC && af_error == 0 &&
-		switch_af(&res) == 1) {
-	        af_error = 1;
-		goto af_again;
-	    }
-#endif
-	    setuid(getuid());
-	    goto fail;
-	} else if (result == -1) {
-	    printf("Bad source route option: %s\n", hostp);
-	    setuid(getuid());
-	    goto fail;
-	}
-    }
-    do {
-        printf("Trying %s...\n", sockaddr_ntop(res->ai_addr));
-	net = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
-	setuid(getuid());
-	if (net < 0) {
-#ifdef INET6
-	    if (family == AF_UNSPEC && af_error == 0 &&
-		switch_af(&res) == 1) {
-	        af_error = 1;
-		goto af_again;
-	    }
-#endif
-	    perror("telnet: socket");
-	    goto fail;
-	}
-	if (srp && setsockopt(net, proto, opt, (char *)srp, srlen) < 0)
-		perror("setsockopt (source route)");
-#if	defined(IPPROTO_IP) && defined(IP_TOS)
-	if (res->ai_family == PF_INET) {
-# if	defined(HAS_GETTOS)
-	    struct tosent *tp;
-	    if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
-		tos = tp->t_tos;
-# endif
-	    if (tos < 0)
-		tos = IPTOS_LOWDELAY;
-	    if (tos
-		&& (setsockopt(net, IPPROTO_IP, IP_TOS,
-		    (char *)&tos, sizeof(int)) < 0)
-		&& (errno != ENOPROTOOPT))
-		    perror("telnet: setsockopt (IP_TOS) (ignored)");
-	}
-#endif	/* defined(IPPROTO_IP) && defined(IP_TOS) */
-
-	if (telnet_debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) {
-		perror("setsockopt (SO_DEBUG)");
-	}
-
-	if (src_addr != NULL) {
-	    for (src_res = src_res0; src_res != 0; src_res = src_res->ai_next)
-	        if (src_res->ai_family == res->ai_family)
-		    break;
-	    if (src_res == NULL)
-		src_res = src_res0;
-	    if (bind(net, src_res->ai_addr, src_res->ai_addrlen) == -1) {
-#ifdef INET6
-	        if (family == AF_UNSPEC && af_error == 0 &&
-		    switch_af(&res) == 1) {
-		    af_error = 1;
-		    (void) NetClose(net);
-		    goto af_again;
-		}
-#endif
-		perror("bind");
-		(void) NetClose(net);
-		goto fail;
-	    }
-	}
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-	if (setpolicy(net, res, ipsec_policy_in) < 0) {
-		(void) NetClose(net);
-		goto fail;
-	}
-	if (setpolicy(net, res, ipsec_policy_out) < 0) {
-		(void) NetClose(net);
-		goto fail;
-	}
-#endif
-
-	if (connect(net, res->ai_addr, res->ai_addrlen) < 0) {
-	    struct addrinfo *next;
-
-	    next = res->ai_next;
-	    /* If already an af failed, only try same af. */
-	    if (af_error != 0)
-		while (next != NULL && next->ai_family != res->ai_family)
-		    next = next->ai_next;
-	    warn("connect to address %s", sockaddr_ntop(res->ai_addr));
-	    if (next != NULL) {
-		res = next;
-		(void) NetClose(net);
-		continue;
-	    }
-	    warnx("Unable to connect to remote host");
-	    (void) NetClose(net);
-	    goto fail;
-	}
-	connected++;
-    } while (connected == 0);
-    freeaddrinfo(res0);
-    if (src_res0 != NULL)
-        freeaddrinfo(src_res0);
-    cmdrc(hostp, hostname);
- af_unix:    
-    if (autologin && user == NULL) {
-	struct passwd *pw;
-
-	user = getenv("USER");
-	if (user == NULL ||
-	    ((pw = getpwnam(user)) && pw->pw_uid != getuid())) {
-		if ((pw = getpwuid(getuid())))
-			user = pw->pw_name;
-		else
-			user = NULL;
-	}
-    }
-    if (user) {
-	env_define("USER", user);
-	env_export("USER");
-    }
-    (void) call(status, "status", "notmuch", 0);
-    if (setjmp(peerdied) == 0)
-	telnet(user);
-    (void) NetClose(net);
-    ExitString("Connection closed by foreign host.\n",1);
-    /*NOTREACHED*/
- fail:
-    if (res0 != NULL)
-        freeaddrinfo(res0);
-    if (src_res0 != NULL)
-        freeaddrinfo(src_res0);
-    return 0;
-}
-
-#define HELPINDENT (sizeof ("connect"))
-
-static char
-	openhelp[] =	"connect to a site",
-	closehelp[] =	"close current connection",
-	logouthelp[] =	"forcibly logout remote user and close the connection",
-	quithelp[] =	"exit telnet",
-	statushelp[] =	"print status information",
-	helphelp[] =	"print help information",
-	sendhelp[] =	"transmit special characters ('send ?' for more)",
-	sethelp[] = 	"set operating parameters ('set ?' for more)",
-	unsethelp[] = 	"unset operating parameters ('unset ?' for more)",
-	togglestring[] ="toggle operating parameters ('toggle ?' for more)",
-	slchelp[] =	"change state of special charaters ('slc ?' for more)",
-	displayhelp[] =	"display operating parameters",
-	zhelp[] =	"suspend telnet",
-#ifdef OPIE
-	opiehelp[] =    "compute response to OPIE challenge",
-#endif
-	shellhelp[] =	"invoke a subshell",
-	envhelp[] =	"change environment variables ('environ ?' for more)",
-	modestring[] = "try to enter line or character mode ('mode ?' for more)";
-
-static Command cmdtab[] = {
-	{ "close",	closehelp,	bye,		1 },
-	{ "logout",	logouthelp,	(int (*)(int, char **))logout,		1 },
-	{ "display",	displayhelp,	display,	0 },
-	{ "mode",	modestring,	modecmd,	0 },
-	{ "telnet",	openhelp,	tn,		0 },
-	{ "open",	openhelp,	tn,		0 },
-	{ "quit",	quithelp,	(int (*)(int, char **))quit,		0 },
-	{ "send",	sendhelp,	sendcmd,	0 },
-	{ "set",	sethelp,	setcmd,		0 },
-	{ "unset",	unsethelp,	unsetcmd,	0 },
-	{ "status",	statushelp,	status,		0 },
-	{ "toggle",	togglestring,	toggle,		0 },
-	{ "slc",	slchelp,	slccmd,		0 },
-	{ "z",		zhelp,		(int (*)(int, char **))suspend,	0 },
-	{ "!",		shellhelp,	shell,		1 },
-	{ "environ",	envhelp,	env_cmd,	0 },
-	{ "?",		helphelp,	help,		0 },
-#ifdef OPIE
-	{ "opie",       opiehelp,       opie_calc,      0 },
-#endif		
-	{ NULL, NULL, NULL, 0 }
-};
-
-static char	crmodhelp[] =	"deprecated command -- use 'toggle crmod' instead";
-static char	escapehelp[] =	"deprecated command -- use 'set escape' instead";
-
-static Command cmdtab2[] = {
-	{ "help",	0,		help,		0 },
-	{ "escape",	escapehelp,	setescape,	0 },
-	{ "crmod",	crmodhelp,	(int (*)(int, char **))togcrmod,	0 },
-	{ NULL, NULL, NULL, 0 }
-};
-
-
-/*
- * Call routine with argc, argv set from args (terminated by 0).
- */
-
-static int
-call(intrtn_t routine, ...)
-{
-    va_list ap;
-    char *args[100];
-    int argno = 0;
-
-    va_start(ap, routine);
-    while ((args[argno++] = va_arg(ap, char *)) != 0);
-    va_end(ap);
-    return (*routine)(argno-1, args);
-}
-
-
-static Command *
-getcmd(char *name)
-{
-    Command *cm;
-
-    if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command))))
-	return cm;
-    return (Command *) genget(name, (char **) cmdtab2, sizeof(Command));
-}
-
-void
-command(int top, const char *tbuf, int cnt)
-{
-    Command *c;
-
-    setcommandmode();
-    if (!top) {
-	putchar('\n');
-    } else {
-	(void) signal(SIGINT, SIG_DFL);
-	(void) signal(SIGQUIT, SIG_DFL);
-    }
-    for (;;) {
-	if (rlogin == _POSIX_VDISABLE)
-		printf("%s> ", prompt);
-	if (tbuf) {
-	    char *cp;
-	    cp = line;
-	    while (cnt > 0 && (*cp++ = *tbuf++) != '\n')
-		cnt--;
-	    tbuf = 0;
-	    if (cp == line || *--cp != '\n' || cp == line)
-		goto getline;
-	    *cp = '\0';
-	    if (rlogin == _POSIX_VDISABLE)
-		printf("%s\n", line);
-	} else {
-	getline:
-	    if (rlogin != _POSIX_VDISABLE)
-		printf("%s> ", prompt);
-	    if (fgets(line, sizeof(line), stdin) == NULL) {
-		if (feof(stdin) || ferror(stdin)) {
-		    (void) quit();
-		    /*NOTREACHED*/
-		}
-		break;
-	    }
-	}
-	if (line[0] == 0)
-	    break;
-	makeargv();
-	if (margv[0] == 0) {
-	    break;
-	}
-	c = getcmd(margv[0]);
-	if (Ambiguous((void *)c)) {
-	    printf("?Ambiguous command\n");
-	    continue;
-	}
-	if (c == 0) {
-	    printf("?Invalid command\n");
-	    continue;
-	}
-	if (c->needconnect && !connected) {
-	    printf("?Need to be connected first.\n");
-	    continue;
-	}
-	if ((*c->handler)(margc, margv)) {
-	    break;
-	}
-    }
-    if (!top) {
-	if (!connected) {
-	    longjmp(toplevel, 1);
-	    /*NOTREACHED*/
-	}
-	setconnmode(0);
-    }
-}
-
-/*
- * Help command.
- */
-static int
-help(int argc, char *argv[])
-{
-	Command *c;
-
-	if (argc == 1) {
-		printf("Commands may be abbreviated.  Commands are:\n\n");
-		for (c = cmdtab; c->name; c++)
-			if (c->help) {
-				printf("%-*s\t%s\n", (int)HELPINDENT, c->name,
-								    c->help);
-			}
-		return 0;
-	}
-	else while (--argc > 0) {
-		char *arg;
-		arg = *++argv;
-		c = getcmd(arg);
-		if (Ambiguous((void *)c))
-			printf("?Ambiguous help command %s\n", arg);
-		else if (c == (Command *)0)
-			printf("?Invalid help command %s\n", arg);
-		else
-			printf("%s\n", c->help);
-	}
-	return 0;
-}
-
-static char *rcname = 0;
-static char rcbuf[128];
-
-void
-cmdrc(char *m1, char *m2)
-{
-    Command *c;
-    FILE *rcfile;
-    int gotmachine = 0;
-    int l1 = strlen(m1);
-    int l2 = strlen(m2);
-    char m1save[MAXHOSTNAMELEN];
-
-    if (skiprc)
-	return;
-
-    strlcpy(m1save, m1, sizeof(m1save));
-    m1 = m1save;
-
-    if (rcname == 0) {
-	rcname = getenv("HOME");
-	if (rcname && (strlen(rcname) + 10) < sizeof(rcbuf))
-	    strcpy(rcbuf, rcname);
-	else
-	    rcbuf[0] = '\0';
-	strcat(rcbuf, "/.telnetrc");
-	rcname = rcbuf;
-    }
-
-    if ((rcfile = fopen(rcname, "r")) == 0) {
-	return;
-    }
-
-    for (;;) {
-	if (fgets(line, sizeof(line), rcfile) == NULL)
-	    break;
-	if (line[0] == 0)
-	    break;
-	if (line[0] == '#')
-	    continue;
-	if (gotmachine) {
-	    if (!isspace(line[0]))
-		gotmachine = 0;
-	}
-	if (gotmachine == 0) {
-	    if (isspace(line[0]))
-		continue;
-	    if (strncasecmp(line, m1, l1) == 0)
-		strncpy(line, &line[l1], sizeof(line) - l1);
-	    else if (strncasecmp(line, m2, l2) == 0)
-		strncpy(line, &line[l2], sizeof(line) - l2);
-	    else if (strncasecmp(line, "DEFAULT", 7) == 0)
-		strncpy(line, &line[7], sizeof(line) - 7);
-	    else
-		continue;
-	    if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
-		continue;
-	    gotmachine = 1;
-	}
-	makeargv();
-	if (margv[0] == 0)
-	    continue;
-	c = getcmd(margv[0]);
-	if (Ambiguous((void *)c)) {
-	    printf("?Ambiguous command: %s\n", margv[0]);
-	    continue;
-	}
-	if (c == 0) {
-	    printf("?Invalid command: %s\n", margv[0]);
-	    continue;
-	}
-	/*
-	 * This should never happen...
-	 */
-	if (c->needconnect && !connected) {
-	    printf("?Need to be connected first for %s.\n", margv[0]);
-	    continue;
-	}
-	(*c->handler)(margc, margv);
-    }
-    fclose(rcfile);
-}
-
-/*
- * Source route is handed in as
- *	[!]@hop1@hop2...[@|:]dst
- * If the leading ! is present, it is a
- * strict source route, otherwise it is
- * assmed to be a loose source route.
- *
- * We fill in the source route option as
- *	hop1,hop2,hop3...dest
- * and return a pointer to hop1, which will
- * be the address to connect() to.
- *
- * Arguments:
- *
- *	res:	ponter to addrinfo structure which contains sockaddr to
- *		the host to connect to.
- *
- *	arg:	pointer to route list to decipher
- *
- *	cpp: 	If *cpp is not equal to NULL, this is a
- *		pointer to a pointer to a character array
- *		that should be filled in with the option.
- *
- *	lenp:	pointer to an integer that contains the
- *		length of *cpp if *cpp != NULL.
- *
- *	protop:	pointer to an integer that should be filled in with
- *		appropriate protocol for setsockopt, as socket 
- *		protocol family.
- *
- *	optp:	pointer to an integer that should be filled in with
- *		appropriate option for setsockopt, as socket protocol
- *		family.
- *
- * Return values:
- *
- *	If the return value is 1, then all operations are
- *	successful. If the
- *	return value is -1, there was a syntax error in the
- *	option, either unknown characters, or too many hosts.
- *	If the return value is 0, one of the hostnames in the
- *	path is unknown, and *cpp is set to point to the bad
- *	hostname.
- *
- *	*cpp:	If *cpp was equal to NULL, it will be filled
- *		in with a pointer to our static area that has
- *		the option filled in.  This will be 32bit aligned.
- *
- *	*lenp:	This will be filled in with how long the option
- *		pointed to by *cpp is.
- *
- *	*protop: This will be filled in with appropriate protocol for
- *		 setsockopt, as socket protocol family.
- *
- *	*optp:	This will be filled in with appropriate option for
- *		setsockopt, as socket protocol family.
- */
-static int
-sourceroute(struct addrinfo *ai, char *arg, char **cpp, int *lenp, int *protop, int *optp)
-{
-	static char buf[1024 + ALIGNBYTES];	/*XXX*/
-	char *cp, *cp2, *lsrp, *ep;
-	struct sockaddr_in *_sin;
-#ifdef INET6
-	struct sockaddr_in6 *sin6;
-	struct cmsghdr *cmsg;
-#endif
-	struct addrinfo hints, *res;
-	int error;
-	char c;
-
-	/*
-	 * Verify the arguments, and make sure we have
-	 * at least 7 bytes for the option.
-	 */
-	if (cpp == NULL || lenp == NULL)
-		return -1;
-	if (*cpp != NULL) {
-		switch (res->ai_family) {
-		case AF_INET:
-			if (*lenp < 7)
-				return -1;
-			break;
-#ifdef INET6
-		case AF_INET6:
-			if (*lenp < (int)CMSG_SPACE(sizeof(struct ip6_rthdr) +
-				               sizeof(struct in6_addr)))
-				return -1;
-			break;
-#endif
-		}
-	}
-	/*
-	 * Decide whether we have a buffer passed to us,
-	 * or if we need to use our own static buffer.
-	 */
-	if (*cpp) {
-		lsrp = *cpp;
-		ep = lsrp + *lenp;
-	} else {
-		*cpp = lsrp = (char *)ALIGN(buf);
-		ep = lsrp + 1024;
-	}
-
-	cp = arg;
-
-#ifdef INET6
-	if (ai->ai_family == AF_INET6) {
-		cmsg = inet6_rthdr_init(*cpp, IPV6_RTHDR_TYPE_0);
-		if (*cp != '@')
-			return -1;
-		*protop = IPPROTO_IPV6;
-		*optp = IPV6_PKTOPTIONS;
-	} else
-#endif
-      {
-	/*
-	 * Next, decide whether we have a loose source
-	 * route or a strict source route, and fill in
-	 * the begining of the option.
-	 */
-	if (*cp == '!') {
-		cp++;
-		*lsrp++ = IPOPT_SSRR;
-	} else
-		*lsrp++ = IPOPT_LSRR;
-
-	if (*cp != '@')
-		return -1;
-
-	lsrp++;		/* skip over length, we'll fill it in later */
-	*lsrp++ = 4;
-	*protop = IPPROTO_IP;
-	*optp = IP_OPTIONS;
-      }
-
-	cp++;
-	memset(&hints, 0, sizeof(hints));
-	hints.ai_family = ai->ai_family;
-	hints.ai_socktype = SOCK_STREAM;
-	for (c = 0;;) {
-		if (
-#ifdef INET6
-		    ai->ai_family != AF_INET6 &&
-#endif
-		    c == ':')
-			cp2 = 0;
-		else for (cp2 = cp; (c = *cp2); cp2++) {
-			if (c == ',') {
-				*cp2++ = '\0';
-				if (*cp2 == '@')
-					cp2++;
-			} else if (c == '@') {
-				*cp2++ = '\0';
-			} else if (
-#ifdef INET6
-				   ai->ai_family != AF_INET6 &&
-#endif
-				   c == ':') {
-				*cp2++ = '\0';
-			} else
-				continue;
-			break;
-		}
-		if (!c)
-			cp2 = 0;
-
-		hints.ai_flags = AI_NUMERICHOST;
-		error = getaddrinfo(cp, NULL, &hints, &res);
-		if (error == EAI_NODATA) {
-			hints.ai_flags = 0;
-			error = getaddrinfo(cp, NULL, &hints, &res);
-		}
-		if (error != 0) {
-			fprintf(stderr, "%s: %s\n", cp, gai_strerror(error));
-			if (error == EAI_SYSTEM)
-				fprintf(stderr, "%s: %s\n", cp,
-					strerror(errno));
-			*cpp = cp;
-			return(0);
-		}
-#ifdef INET6
-		if (res->ai_family == AF_INET6) {
-			sin6 = (struct sockaddr_in6 *)res->ai_addr;
-			inet6_rthdr_add(cmsg, &sin6->sin6_addr,
-					IPV6_RTHDR_LOOSE);
-		} else
-#endif
-	      {
-		_sin = (struct sockaddr_in *)res->ai_addr;
-		memcpy(lsrp, (char *)&_sin->sin_addr, 4);
-		lsrp += 4;
-	      }
-		if (cp2)
-			cp = cp2;
-		else
-			break;
-		/*
-		 * Check to make sure there is space for next address
-		 */
-#ifdef INET6
-		if (res->ai_family == AF_INET6) {
-			if (((char *)CMSG_DATA(cmsg) +
-			     sizeof(struct ip6_rthdr) +
-			     ((inet6_rthdr_segments(cmsg) + 1) *
-			      sizeof(struct in6_addr))) > ep)
-			return -1;
-		} else
-#endif
-		if (lsrp + 4 > ep)
-			return -1;
-		freeaddrinfo(res);
-	}
-#ifdef INET6
-	if (res->ai_family == AF_INET6) {
-		inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE);
-		*lenp = cmsg->cmsg_len;
-	} else
-#endif
-      {
-	if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) {
-		*cpp = 0;
-		*lenp = 0;
-		return -1;
-	}
-	*lsrp++ = IPOPT_NOP; /* 32 bit word align it */
-	*lenp = lsrp - *cpp;
-      }
-	freeaddrinfo(res);
-	return 1;
-}
diff --git a/usr.bin/telnet/defines.h b/usr.bin/telnet/defines.h
deleted file mode 100644
index 840666deacb6..000000000000
--- a/usr.bin/telnet/defines.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)defines.h	8.1 (Berkeley) 6/6/93
- * $FreeBSD$
- */
-
-#define	settimer(x)	clocks.x = clocks.system++
-
-#define	NETADD(c)	{ *netoring.supply = c; ring_supplied(&netoring, 1); }
-#define	NET2ADD(c1,c2)	{ NETADD(c1); NETADD(c2); }
-#define	NETBYTES()	(ring_full_count(&netoring))
-#define	NETROOM()	(ring_empty_count(&netoring))
-
-#define	TTYADD(c)	if (!(SYNCHing||flushout)) { \
-				*ttyoring.supply = c; \
-				ring_supplied(&ttyoring, 1); \
-			}
-#define	TTYBYTES()	(ring_full_count(&ttyoring))
-#define	TTYROOM()	(ring_empty_count(&ttyoring))
-
-/*	Various modes */
-#define	MODE_LOCAL_CHARS(m)	((m)&(MODE_EDIT|MODE_TRAPSIG))
-#define	MODE_LOCAL_ECHO(m)	((m)&MODE_ECHO)
-#define	MODE_COMMAND_LINE(m)	((m)==-1)
-
-#define	CONTROL(x)	((x)&0x1f)		/* CTRL(x) is not portable */
diff --git a/usr.bin/telnet/externs.h b/usr.bin/telnet/externs.h
deleted file mode 100644
index b4fd327bec53..000000000000
--- a/usr.bin/telnet/externs.h
+++ /dev/null
@@ -1,487 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)externs.h	8.3 (Berkeley) 5/30/95
- *	$FreeBSD$
- */
-
-#ifndef	BSD
-# define BSD 43
-#endif
-
-/*
- * ucb stdio.h defines BSD as something weird
- */
-#if defined(sun) && defined(__svr4__)
-#define BSD 43
-#endif
-
-#ifndef	USE_TERMIO
-# if BSD > 43 || defined(SYSV_TERMIO)
-#  define USE_TERMIO
-# endif
-#endif
-
-#include <stdio.h>
-#include <setjmp.h>
-#include <sys/ioctl.h>
-#include <errno.h>
-#ifdef	USE_TERMIO
-# ifndef	VINTR
-#  include <sys/termios.h>
-# endif
-# define termio termios
-#endif
-#if defined(NO_CC_T) || !defined(USE_TERMIO)
-# if !defined(USE_TERMIO)
-typedef char cc_t;
-# else
-typedef unsigned char cc_t;
-# endif
-#endif
-
-#include <string.h>
-
-#if defined(IPSEC)
-#include <netinet6/ipsec.h>
-#if defined(IPSEC_POLICY_IPSEC)
-extern char *ipsec_policy_in;
-extern char *ipsec_policy_out;
-#endif
-#endif
-
-#ifndef	_POSIX_VDISABLE
-# ifdef sun
-#  include <sys/param.h>	/* pick up VDISABLE definition, mayby */
-# endif
-# ifdef VDISABLE
-#  define _POSIX_VDISABLE VDISABLE
-# else
-#  define _POSIX_VDISABLE ((cc_t)'\377')
-# endif
-#endif
-
-#define	SUBBUFSIZE	256
-
-#if	!defined(P)
-# ifdef	__STDC__
-#  define	P(x)	x
-# else
-#  define	P(x)	()
-# endif
-#endif
-
-extern int
-    autologin,		/* Autologin enabled */
-    skiprc,		/* Don't process the ~/.telnetrc file */
-    eight,		/* use eight bit mode (binary in and/or out */
-    family,		/* address family of peer */
-    flushout,		/* flush output */
-    connected,		/* Are we connected to the other side? */
-    globalmode,		/* Mode tty should be in */
-    telnetport,		/* Are we connected to the telnet port? */
-    localflow,		/* Flow control handled locally */
-    restartany,		/* If flow control, restart output on any character */
-    localchars,		/* we recognize interrupt/quit */
-    donelclchars,	/* the user has set "localchars" */
-    showoptions,
-    net,		/* Network file descriptor */
-    tin,		/* Terminal input file descriptor */
-    tout,		/* Terminal output file descriptor */
-    crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
-    autoflush,		/* flush output when interrupting? */
-    autosynch,		/* send interrupt characters with SYNCH? */
-    SYNCHing,		/* Is the stream in telnet SYNCH mode? */
-    donebinarytoggle,	/* the user has put us in binary */
-    dontlecho,		/* do we suppress local echoing right now? */
-    crmod,
-    netdata,		/* Print out network data flow */
-    prettydump,		/* Print "netdata" output in user readable format */
-    termdata,		/* Print out terminal data flow */
-    telnet_debug,	/* Debug level */
-    doaddrlookup,	/* do a reverse lookup? */
-    clienteof;		/* Client received EOF */
-
-extern cc_t escape;	/* Escape to command mode */
-extern cc_t rlogin;	/* Rlogin mode escape character */
-#ifdef	KLUDGELINEMODE
-extern cc_t echoc;	/* Toggle local echoing */
-#endif
-
-extern char
-    *prompt;		/* Prompt for command. */
-
-extern char
-    doopt[],
-    dont[],
-    will[],
-    wont[],
-    options[],		/* All the little options */
-    *hostname;		/* Who are we connected to? */
-
-/*
- * We keep track of each side of the option negotiation.
- */
-
-#define	MY_STATE_WILL		0x01
-#define	MY_WANT_STATE_WILL	0x02
-#define	MY_STATE_DO		0x04
-#define	MY_WANT_STATE_DO	0x08
-
-/*
- * Macros to check the current state of things
- */
-
-#define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)
-#define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)
-#define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)
-#define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)
-
-#define	my_state_is_dont(opt)		(!my_state_is_do(opt))
-#define	my_state_is_wont(opt)		(!my_state_is_will(opt))
-#define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))
-#define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))
-
-#define	set_my_state_do(opt)		{options[opt] |= MY_STATE_DO;}
-#define	set_my_state_will(opt)		{options[opt] |= MY_STATE_WILL;}
-#define	set_my_want_state_do(opt)	{options[opt] |= MY_WANT_STATE_DO;}
-#define	set_my_want_state_will(opt)	{options[opt] |= MY_WANT_STATE_WILL;}
-
-#define	set_my_state_dont(opt)		{options[opt] &= ~MY_STATE_DO;}
-#define	set_my_state_wont(opt)		{options[opt] &= ~MY_STATE_WILL;}
-#define	set_my_want_state_dont(opt)	{options[opt] &= ~MY_WANT_STATE_DO;}
-#define	set_my_want_state_wont(opt)	{options[opt] &= ~MY_WANT_STATE_WILL;}
-
-/*
- * Make everything symetrical
- */
-
-#define	HIS_STATE_WILL			MY_STATE_DO
-#define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO
-#define HIS_STATE_DO			MY_STATE_WILL
-#define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL
-
-#define	his_state_is_do			my_state_is_will
-#define	his_state_is_will		my_state_is_do
-#define his_want_state_is_do		my_want_state_is_will
-#define his_want_state_is_will		my_want_state_is_do
-
-#define	his_state_is_dont		my_state_is_wont
-#define	his_state_is_wont		my_state_is_dont
-#define his_want_state_is_dont		my_want_state_is_wont
-#define his_want_state_is_wont		my_want_state_is_dont
-
-#define	set_his_state_do		set_my_state_will
-#define	set_his_state_will		set_my_state_do
-#define	set_his_want_state_do		set_my_want_state_will
-#define	set_his_want_state_will		set_my_want_state_do
-
-#define	set_his_state_dont		set_my_state_wont
-#define	set_his_state_wont		set_my_state_dont
-#define	set_his_want_state_dont		set_my_want_state_wont
-#define	set_his_want_state_wont		set_my_want_state_dont
-
-#if	defined(USE_TERMIO)
-#define	SIG_FUNC_RET	void
-#else
-#define	SIG_FUNC_RET	int
-#endif
-
-#ifdef	SIGINFO
-extern SIG_FUNC_RET
-    ayt_status(void);
-#endif
-
-extern FILE
-    *NetTrace;		/* Where debugging output goes */
-extern unsigned char
-    NetTraceFile[];	/* Name of file where debugging output goes */
-extern void
-    SetNetTrace(char *);	/* Function to change where debugging goes */
-
-extern jmp_buf
-    peerdied,
-    toplevel;		/* For error conditions. */
-
-extern void
-    command(int, const char *, int),
-    Dump(char, unsigned char *, int),
-    env_init(void),
-    Exit(int),
-    ExitString(const char *, int),
-    init_network(void),
-    init_sys(void),
-    init_telnet(void),
-    init_terminal(void),
-    intp(void),
-    optionstatus(void),
-    printoption(const char *, int, int),
-    printsub(char, unsigned char *, int),
-    quit(void),
-    sendabort(void),
-    sendbrk(void),
-    sendeof(void),
-    sendsusp(void),
-    sendnaws(void),
-    sendayt(void),
-    setconnmode(int),
-    setcommandmode(void),
-    set_escape_char(char *s),
-    setneturg(void),
-    sys_telnet_init(void),
-    telnet(char *),
-    tel_enter_binary(int),
-    tel_leave_binary(int),
-    TerminalFlushOutput(void),
-    TerminalNewMode(int),
-    TerminalRestoreState(void),
-    TerminalSaveState(void),
-    TerminalDefaultChars(void),
-    TerminalSpeeds(long *, long *),
-    tninit(void),
-    upcase(char *),
-    willoption(int),
-    wontoption(int);
-
-extern void
-    send_do(int, int),
-    send_dont(int, int),
-    send_will(int, int),
-    send_wont(int, int);
-
-extern void
-    lm_will(unsigned char *, int),
-    lm_wont(unsigned char *, int),
-    lm_do(unsigned char *, int),
-    lm_dont(unsigned char *, int),
-    lm_mode(unsigned char *, int, int);
-
-extern void
-    slc_init(void),
-    slcstate(void),
-    slc_mode_export(void),
-    slc_mode_import(int),
-    slc_import(int),
-    slc_export(void),
-    slc(unsigned char *, int),
-    slc_check(void),
-    slc_start_reply(void),
-    slc_add_reply(unsigned char, unsigned char, cc_t),
-    slc_end_reply(void);
-extern int
-    getconnmode(void),
-    opt_welldefined(const char *),
-    NetClose(int),
-    netflush(void),
-    process_rings(int, int, int, int, int, int),
-    rlogin_susp(void),
-    SetSockOpt(int, int, int, int),
-    slc_update(void),
-    stilloob(void),
-    telrcv(void),
-    TerminalRead(char *, int),
-    TerminalWrite(char *, int),
-    TerminalAutoFlush(void),
-    TerminalWindowSize(long *, long *),
-    TerminalSpecialChars(int),
-    tn(int, char **),
-    ttyflush(int);
-
-extern void
-    env_opt(unsigned char *, int),
-    env_opt_start(void),
-    env_opt_start_info(void),
-    env_opt_add(unsigned char *),
-    env_opt_end(int);
-
-extern unsigned char
-    *env_default(int, int),
-    *env_getvalue(const unsigned char *);
-
-extern int
-    get_status(char *),
-    dosynch(char *);
-
-extern cc_t
-    *tcval(int);
-
-#ifndef	USE_TERMIO
-
-extern struct	tchars ntc;
-extern struct	ltchars nltc;
-extern struct	sgttyb nttyb;
-
-# define termEofChar		ntc.t_eofc
-# define termEraseChar		nttyb.sg_erase
-# define termFlushChar		nltc.t_flushc
-# define termIntChar		ntc.t_intrc
-# define termKillChar		nttyb.sg_kill
-# define termLiteralNextChar	nltc.t_lnextc
-# define termQuitChar		ntc.t_quitc
-# define termSuspChar		nltc.t_suspc
-# define termRprntChar		nltc.t_rprntc
-# define termWerasChar		nltc.t_werasc
-# define termStartChar		ntc.t_startc
-# define termStopChar		ntc.t_stopc
-# define termForw1Char		ntc.t_brkc
-extern cc_t termForw2Char;
-extern cc_t termAytChar;
-
-# define termEofCharp		(cc_t *)&ntc.t_eofc
-# define termEraseCharp		(cc_t *)&nttyb.sg_erase
-# define termFlushCharp		(cc_t *)&nltc.t_flushc
-# define termIntCharp		(cc_t *)&ntc.t_intrc
-# define termKillCharp		(cc_t *)&nttyb.sg_kill
-# define termLiteralNextCharp	(cc_t *)&nltc.t_lnextc
-# define termQuitCharp		(cc_t *)&ntc.t_quitc
-# define termSuspCharp		(cc_t *)&nltc.t_suspc
-# define termRprntCharp		(cc_t *)&nltc.t_rprntc
-# define termWerasCharp		(cc_t *)&nltc.t_werasc
-# define termStartCharp		(cc_t *)&ntc.t_startc
-# define termStopCharp		(cc_t *)&ntc.t_stopc
-# define termForw1Charp		(cc_t *)&ntc.t_brkc
-# define termForw2Charp		(cc_t *)&termForw2Char
-# define termAytCharp		(cc_t *)&termAytChar
-
-# else
-
-extern struct	termio new_tc;
-
-# define termEofChar		new_tc.c_cc[VEOF]
-# define termEraseChar		new_tc.c_cc[VERASE]
-# define termIntChar		new_tc.c_cc[VINTR]
-# define termKillChar		new_tc.c_cc[VKILL]
-# define termQuitChar		new_tc.c_cc[VQUIT]
-
-# ifndef	VSUSP
-extern cc_t termSuspChar;
-# else
-#  define termSuspChar		new_tc.c_cc[VSUSP]
-# endif
-# if	defined(VFLUSHO) && !defined(VDISCARD)
-#  define VDISCARD VFLUSHO
-# endif
-# ifndef	VDISCARD
-extern cc_t termFlushChar;
-# else
-#  define termFlushChar		new_tc.c_cc[VDISCARD]
-# endif
-# ifndef VWERASE
-extern cc_t termWerasChar;
-# else
-#  define termWerasChar		new_tc.c_cc[VWERASE]
-# endif
-# ifndef	VREPRINT
-extern cc_t termRprntChar;
-# else
-#  define termRprntChar		new_tc.c_cc[VREPRINT]
-# endif
-# ifndef	VLNEXT
-extern cc_t termLiteralNextChar;
-# else
-#  define termLiteralNextChar	new_tc.c_cc[VLNEXT]
-# endif
-# ifndef	VSTART
-extern cc_t termStartChar;
-# else
-#  define termStartChar		new_tc.c_cc[VSTART]
-# endif
-# ifndef	VSTOP
-extern cc_t termStopChar;
-# else
-#  define termStopChar		new_tc.c_cc[VSTOP]
-# endif
-# ifndef	VEOL
-extern cc_t termForw1Char;
-# else
-#  define termForw1Char		new_tc.c_cc[VEOL]
-# endif
-# ifndef	VEOL2
-extern cc_t termForw2Char;
-# else
-#  define termForw2Char		new_tc.c_cc[VEOL]
-# endif
-# ifndef	VSTATUS
-extern cc_t termAytChar;
-#else
-#  define termAytChar		new_tc.c_cc[VSTATUS]
-#endif
-
-# if defined(__STDC__)
-#  define termEofCharp		&termEofChar
-#  define termEraseCharp	&termEraseChar
-#  define termIntCharp		&termIntChar
-#  define termKillCharp		&termKillChar
-#  define termQuitCharp		&termQuitChar
-#  define termSuspCharp		&termSuspChar
-#  define termFlushCharp	&termFlushChar
-#  define termWerasCharp	&termWerasChar
-#  define termRprntCharp	&termRprntChar
-#  define termLiteralNextCharp	&termLiteralNextChar
-#  define termStartCharp	&termStartChar
-#  define termStopCharp		&termStopChar
-#  define termForw1Charp	&termForw1Char
-#  define termForw2Charp	&termForw2Char
-#  define termAytCharp		&termAytChar
-# else
-	/* Work around a compiler bug */
-#  define termEofCharp		0
-#  define termEraseCharp	0
-#  define termIntCharp		0
-#  define termKillCharp		0
-#  define termQuitCharp		0
-#  define termSuspCharp		0
-#  define termFlushCharp	0
-#  define termWerasCharp	0
-#  define termRprntCharp	0
-#  define termLiteralNextCharp	0
-#  define termStartCharp	0
-#  define termStopCharp		0
-#  define termForw1Charp	0
-#  define termForw2Charp	0
-#  define termAytCharp		0
-# endif
-#endif
-
-
-/* Ring buffer structures which are shared */
-
-extern Ring
-    netoring,
-    netiring,
-    ttyoring,
-    ttyiring;
-
-extern void
-    xmitAO(void),
-    xmitEC(void),
-    xmitEL(void);
diff --git a/usr.bin/telnet/fdset.h b/usr.bin/telnet/fdset.h
deleted file mode 100644
index 045bb7221419..000000000000
--- a/usr.bin/telnet/fdset.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)fdset.h	8.1 (Berkeley) 6/6/93
- */
-
-/*
- * The following is defined just in case someone should want to run
- * this telnet on a 4.2 system.
- *
- */
-
-#ifndef	FD_SETSIZE
-
-#define	FD_SET(n, p)	((p)->fds_bits[0] |= (1<<(n)))
-#define	FD_CLR(n, p)	((p)->fds_bits[0] &= ~(1<<(n)))
-#define	FD_ISSET(n, p)	((p)->fds_bits[0] & (1<<(n)))
-#define FD_ZERO(p)	((p)->fds_bits[0] = 0)
-
-#endif
diff --git a/usr.bin/telnet/general.h b/usr.bin/telnet/general.h
deleted file mode 100644
index 4efa9519469e..000000000000
--- a/usr.bin/telnet/general.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)general.h	8.1 (Berkeley) 6/6/93
- */
-
-/*
- * Some general definitions.
- */
-
-
-#define	numberof(x)	(sizeof x/sizeof x[0])
-#define	highestof(x)	(numberof(x)-1)
-
-#define	ClearElement(x)		memset((char *)&x, 0, sizeof x)
-#define	ClearArray(x)		memset((char *)x, 0, sizeof x)
diff --git a/usr.bin/telnet/main.c b/usr.bin/telnet/main.c
deleted file mode 100644
index e00734832b46..000000000000
--- a/usr.bin/telnet/main.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)main.c	8.3 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "ring.h"
-#include "externs.h"
-#include "defines.h"
-
-
-/* These values need to be the same as defined in libtelnet/kerberos5.c */
-/* Either define them in both places, or put in some common header file. */
-#define OPTS_FORWARD_CREDS	0x00000002
-#define OPTS_FORWARDABLE_CREDS	0x00000001
-
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-char *ipsec_policy_in = NULL;
-char *ipsec_policy_out = NULL;
-#endif
-
-int family = AF_UNSPEC;
-
-/*
- * Initialize variables.
- */
-void
-tninit(void)
-{
-    init_terminal();
-
-    init_network();
-
-    init_telnet();
-
-    init_sys();
-}
-
-static void
-usage(void)
-{
-	fprintf(stderr, "usage: %s %s%s%s%s\n",
-	    prompt,
-	    "[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-c] [-d]",
-	    "\n\t[-e char] [-l user] [-n tracefile] ",
-	    "[-r] [-s src_addr] [-u] ",
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-	    "[-P policy] "
-#endif
-	    "[host-name [port]]"
-	);
-	exit(1);
-}
-
-/*
- * main.  Parse arguments, invoke the protocol or command parser.
- */
-
-int
-main(int argc, char *argv[])
-{
-	int ch;
-	char *user;
-	char *src_addr = NULL;
-#ifdef	FORWARD
-	extern int forward_flags;
-#endif	/* FORWARD */
-
-	tninit();		/* Clear out things */
-
-	TerminalSaveState();
-
-	if ((prompt = strrchr(argv[0], '/')))
-		++prompt;
-	else
-		prompt = argv[0];
-
-	user = NULL;
-
-	rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
-	autologin = -1;
-
-
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-#define IPSECOPT	"P:"
-#else
-#define IPSECOPT
-#endif
-	while ((ch = getopt(argc, argv,
-			    "468EKLNS:X:acde:fFk:l:n:rs:t:uxy" IPSECOPT)) != -1)
-#undef IPSECOPT
-	{
-		switch(ch) {
-		case '4':
-			family = AF_INET;
-			break;
-#ifdef INET6
-		case '6':
-			family = AF_INET6;
-			break;
-#endif
-		case '8':
-			eight = 3;	/* binary output and input */
-			break;
-		case 'E':
-			rlogin = escape = _POSIX_VDISABLE;
-			break;
-		case 'K':
-			break;
-		case 'L':
-			eight |= 2;	/* binary output only */
-			break;
-		case 'N':
-			doaddrlookup = 0;
-			break;
-		case 'S':
-		    {
-#ifdef	HAS_GETTOS
-			extern int tos;
-
-			if ((tos = parsetos(optarg, "tcp")) < 0)
-				fprintf(stderr, "%s%s%s%s\n",
-					prompt, ": Bad TOS argument '",
-					optarg,
-					"; will try to use default TOS");
-#else
-			fprintf(stderr,
-			   "%s: Warning: -S ignored, no parsetos() support.\n",
-								prompt);
-#endif
-		    }
-			break;
-		case 'X':
-			break;
-		case 'a':
-			autologin = 1;
-			break;
-		case 'c':
-			skiprc = 1;
-			break;
-		case 'd':
-			telnet_debug = 1;
-			break;
-		case 'e':
-			set_escape_char(optarg);
-			break;
-		case 'f':
-			fprintf(stderr,
-			 "%s: Warning: -f ignored, no Kerberos V5 support.\n",
-				prompt);
-			break;
-		case 'F':
-			fprintf(stderr,
-			 "%s: Warning: -F ignored, no Kerberos V5 support.\n",
-				prompt);
-			break;
-		case 'k':
-			fprintf(stderr,
-			   "%s: Warning: -k ignored, no Kerberos V4 support.\n",
-								prompt);
-			break;
-		case 'l':
-			autologin = 1;
-			user = optarg;
-			break;
-		case 'n':
-				SetNetTrace(optarg);
-			break;
-		case 'r':
-			rlogin = '~';
-			break;
-		case 's':
-			src_addr = optarg;
-			break;
-		case 'u':
-			family = AF_UNIX;
-			break;
-		case 'x':
-			fprintf(stderr,
-			    "%s: Warning: -x ignored, no ENCRYPT support.\n",
-								prompt);
-			break;
-		case 'y':
-			fprintf(stderr,
-			    "%s: Warning: -y ignored, no ENCRYPT support.\n",
-								prompt);
-			break;
-#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
-		case 'P':
-			if (!strncmp("in", optarg, 2))
-				ipsec_policy_in = strdup(optarg);
-			else if (!strncmp("out", optarg, 3))
-				ipsec_policy_out = strdup(optarg);
-			else
-				usage();
-			break;
-#endif
-		case '?':
-		default:
-			usage();
-			/* NOTREACHED */
-		}
-	}
-	if (autologin == -1)
-		autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
-
-	argc -= optind;
-	argv += optind;
-
-	if (argc) {
-		char *args[9], **argp = args;
-
-		if (argc > 2)
-			usage();
-		*argp++ = prompt;
-		if (user) {
-			*argp++ = strdup("-l");
-			*argp++ = user;
-		}
-		if (src_addr) {
-			*argp++ = strdup("-s");
-			*argp++ = src_addr;
-		}
-		*argp++ = argv[0];		/* host */
-		if (argc > 1)
-			*argp++ = argv[1];	/* port */
-		*argp = 0;
-
-		if (setjmp(toplevel) != 0)
-			Exit(0);
-		if (tn(argp - args, args) == 1)
-			return (0);
-		else
-			return (1);
-	}
-	(void)setjmp(toplevel);
-	for (;;) {
-			command(1, 0, 0);
-	}
-	return 0;
-}
diff --git a/usr.bin/telnet/network.c b/usr.bin/telnet/network.c
deleted file mode 100644
index cdcd41994333..000000000000
--- a/usr.bin/telnet/network.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)network.c	8.2 (Berkeley) 12/15/93";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-
-#include <errno.h>
-#include <stdlib.h>
-
-#include <arpa/telnet.h>
-#include <unistd.h>
-
-#include "ring.h"
-
-#include "defines.h"
-#include "externs.h"
-#include "fdset.h"
-
-Ring		netoring, netiring;
-unsigned char	netobuf[2*BUFSIZ], netibuf[BUFSIZ];
-
-/*
- * Initialize internal network data structures.
- */
-
-void
-init_network(void)
-{
-    if (ring_init(&netoring, netobuf, sizeof netobuf) != 1) {
-	exit(1);
-    }
-    if (ring_init(&netiring, netibuf, sizeof netibuf) != 1) {
-	exit(1);
-    }
-    NetTrace = stdout;
-}
-
-
-/*
- * Check to see if any out-of-band data exists on a socket (for
- * Telnet "synch" processing).
- */
-
-int
-stilloob(void)
-{
-    static struct timeval timeout = { 0, 0 };
-    fd_set	excepts;
-    int value;
-
-    do {
-	FD_ZERO(&excepts);
-	FD_SET(net, &excepts);
-	value = select(net+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout);
-    } while ((value == -1) && (errno == EINTR));
-
-    if (value < 0) {
-	perror("select");
-	(void) quit();
-	/* NOTREACHED */
-    }
-    if (FD_ISSET(net, &excepts)) {
-	return 1;
-    } else {
-	return 0;
-    }
-}
-
-
-/*
- *  setneturg()
- *
- *	Sets "neturg" to the current location.
- */
-
-void
-setneturg(void)
-{
-    ring_mark(&netoring);
-}
-
-
-/*
- *  netflush
- *		Send as much data as possible to the network,
- *	handling requests for urgent data.
- *
- *		The return value indicates whether we did any
- *	useful work.
- */
-
-int
-netflush(void)
-{
-    int n, n1;
-
-    if ((n1 = n = ring_full_consecutive(&netoring)) > 0) {
-	if (!ring_at_mark(&netoring)) {
-	    n = send(net, (char *)netoring.consume, n, 0); /* normal write */
-	} else {
-	    /*
-	     * In 4.2 (and 4.3) systems, there is some question about
-	     * what byte in a sendOOB operation is the "OOB" data.
-	     * To make ourselves compatible, we only send ONE byte
-	     * out of band, the one WE THINK should be OOB (though
-	     * we really have more the TCP philosophy of urgent data
-	     * rather than the Unix philosophy of OOB data).
-	     */
-	    n = send(net, (char *)netoring.consume, 1, MSG_OOB);/* URGENT data */
-	}
-    }
-    if (n < 0) {
-	if (errno != ENOBUFS && errno != EWOULDBLOCK) {
-	    setcommandmode();
-	    perror(hostname);
-	    (void)NetClose(net);
-	    ring_clear_mark(&netoring);
-	    longjmp(peerdied, -1);
-	    /*NOTREACHED*/
-	}
-	n = 0;
-    }
-    if (netdata && n) {
-	Dump('>', netoring.consume, n);
-    }
-    if (n) {
-	ring_consumed(&netoring, n);
-	/*
-	 * If we sent all, and more to send, then recurse to pick
-	 * up the other half.
-	 */
-	if ((n1 == n) && ring_full_consecutive(&netoring)) {
-	    (void) netflush();
-	}
-	return 1;
-    } else {
-	return 0;
-    }
-}
diff --git a/usr.bin/telnet/ring.c b/usr.bin/telnet/ring.c
deleted file mode 100644
index b6e2bea3616c..000000000000
--- a/usr.bin/telnet/ring.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)ring.c	8.2 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * This defines a structure for a ring buffer.
- *
- * The circular buffer has two parts:
- *(((
- *	full:	[consume, supply)
- *	empty:	[supply, consume)
- *]]]
- *
- */
-
-#include	<errno.h>
-#include	<stdio.h>
-#include	<string.h>
-
-#ifdef	size_t
-#undef	size_t
-#endif
-
-#include	<sys/types.h>
-#ifndef	FILIO_H
-#include	<sys/ioctl.h>
-#endif
-#include	<sys/socket.h>
-
-#include	"ring.h"
-#include	"general.h"
-
-/* Internal macros */
-
-#if	!defined(MIN)
-#define	MIN(a,b)	(((a)<(b))? (a):(b))
-#endif	/* !defined(MIN) */
-
-#define	ring_subtract(d,a,b)	(((a)-(b) >= 0)? \
-					(a)-(b): (((a)-(b))+(d)->size))
-
-#define	ring_increment(d,a,c)	(((a)+(c) < (d)->top)? \
-					(a)+(c) : (((a)+(c))-(d)->size))
-
-#define	ring_decrement(d,a,c)	(((a)-(c) >= (d)->bottom)? \
-					(a)-(c) : (((a)-(c))-(d)->size))
-
-
-/*
- * The following is a clock, used to determine full, empty, etc.
- *
- * There is some trickiness here.  Since the ring buffers are initialized
- * to ZERO on allocation, we need to make sure, when interpreting the
- * clock, that when the times are EQUAL, then the buffer is FULL.
- */
-static u_long ring_clock = 0;
-
-
-#define	ring_empty(d) (((d)->consume == (d)->supply) && \
-				((d)->consumetime >= (d)->supplytime))
-#define	ring_full(d) (((d)->supply == (d)->consume) && \
-				((d)->supplytime > (d)->consumetime))
-
-/* Buffer state transition routines */
-
-int
-ring_init(Ring *ring, unsigned char *buffer, int count)
-{
-    memset((char *)ring, 0, sizeof *ring);
-
-    ring->size = count;
-
-    ring->supply = ring->consume = ring->bottom = buffer;
-
-    ring->top = ring->bottom+ring->size;
-
-
-    return 1;
-}
-
-/* Mark routines */
-
-/*
- * Mark the most recently supplied byte.
- */
-
-void
-ring_mark(Ring *ring)
-{
-    ring->mark = ring_decrement(ring, ring->supply, 1);
-}
-
-/*
- * Is the ring pointing to the mark?
- */
-
-int
-ring_at_mark(Ring *ring)
-{
-    if (ring->mark == ring->consume) {
-	return 1;
-    } else {
-	return 0;
-    }
-}
-
-/*
- * Clear any mark set on the ring.
- */
-
-void
-ring_clear_mark(Ring *ring)
-{
-    ring->mark = 0;
-}
-
-/*
- * Add characters from current segment to ring buffer.
- */
-void
-ring_supplied(Ring *ring, int count)
-{
-    ring->supply = ring_increment(ring, ring->supply, count);
-    ring->supplytime = ++ring_clock;
-}
-
-/*
- * We have just consumed "c" bytes.
- */
-void
-ring_consumed(Ring *ring, int count)
-{
-    if (count == 0)	/* don't update anything */
-	return;
-
-    if (ring->mark &&
-		(ring_subtract(ring, ring->mark, ring->consume) < count)) {
-	ring->mark = 0;
-    }
-    ring->consume = ring_increment(ring, ring->consume, count);
-    ring->consumetime = ++ring_clock;
-    /*
-     * Try to encourage "ring_empty_consecutive()" to be large.
-     */
-    if (ring_empty(ring)) {
-	ring->consume = ring->supply = ring->bottom;
-    }
-}
-
-
-
-/* Buffer state query routines */
-
-
-/* Number of bytes that may be supplied */
-int
-ring_empty_count(Ring *ring)
-{
-    if (ring_empty(ring)) {	/* if empty */
-	    return ring->size;
-    } else {
-	return ring_subtract(ring, ring->consume, ring->supply);
-    }
-}
-
-/* number of CONSECUTIVE bytes that may be supplied */
-int
-ring_empty_consecutive(Ring *ring)
-{
-    if ((ring->consume < ring->supply) || ring_empty(ring)) {
-			    /*
-			     * if consume is "below" supply, or empty, then
-			     * return distance to the top
-			     */
-	return ring_subtract(ring, ring->top, ring->supply);
-    } else {
-				    /*
-				     * else, return what we may.
-				     */
-	return ring_subtract(ring, ring->consume, ring->supply);
-    }
-}
-
-/* Return the number of bytes that are available for consuming
- * (but don't give more than enough to get to cross over set mark)
- */
-
-int
-ring_full_count(Ring *ring)
-{
-    if ((ring->mark == 0) || (ring->mark == ring->consume)) {
-	if (ring_full(ring)) {
-	    return ring->size;	/* nothing consumed, but full */
-	} else {
-	    return ring_subtract(ring, ring->supply, ring->consume);
-	}
-    } else {
-	return ring_subtract(ring, ring->mark, ring->consume);
-    }
-}
-
-/*
- * Return the number of CONSECUTIVE bytes available for consuming.
- * However, don't return more than enough to cross over set mark.
- */
-int
-ring_full_consecutive(Ring *ring)
-{
-    if ((ring->mark == 0) || (ring->mark == ring->consume)) {
-	if ((ring->supply < ring->consume) || ring_full(ring)) {
-	    return ring_subtract(ring, ring->top, ring->consume);
-	} else {
-	    return ring_subtract(ring, ring->supply, ring->consume);
-	}
-    } else {
-	if (ring->mark < ring->consume) {
-	    return ring_subtract(ring, ring->top, ring->consume);
-	} else {	/* Else, distance to mark */
-	    return ring_subtract(ring, ring->mark, ring->consume);
-	}
-    }
-}
-
-/*
- * Move data into the "supply" portion of of the ring buffer.
- */
-void
-ring_supply_data(Ring *ring, unsigned char *buffer, int count)
-{
-    int i;
-
-    while (count) {
-	i = MIN(count, ring_empty_consecutive(ring));
-	memcpy(ring->supply, buffer, i);
-	ring_supplied(ring, i);
-	count -= i;
-	buffer += i;
-    }
-}
-
diff --git a/usr.bin/telnet/ring.h b/usr.bin/telnet/ring.h
deleted file mode 100644
index 1d8f54c1e128..000000000000
--- a/usr.bin/telnet/ring.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)ring.h	8.1 (Berkeley) 6/6/93
- * $FreeBSD$
- */
-
-#if defined(P)
-# undef P
-#endif
-
-#if defined(__STDC__) || defined(LINT_ARGS)
-# define	P(x)	x
-#else
-# define	P(x)	()
-#endif
-
-/*
- * This defines a structure for a ring buffer.
- *
- * The circular buffer has two parts:
- *(((
- *	full:	[consume, supply)
- *	empty:	[supply, consume)
- *]]]
- *
- */
-typedef struct {
-    unsigned char	*consume,	/* where data comes out of */
-			*supply,	/* where data comes in to */
-			*bottom,	/* lowest address in buffer */
-			*top,		/* highest address+1 in buffer */
-			*mark;		/* marker (user defined) */
-    int		size;		/* size in bytes of buffer */
-    u_long	consumetime,	/* help us keep straight full, empty, etc. */
-		supplytime;
-} Ring;
-
-/* Here are some functions and macros to deal with the ring buffer */
-
-/* Initialization routine */
-extern int
-	ring_init(Ring *ring, unsigned char *buffer, int count);
-
-/* Data movement routines */
-extern void
-	ring_supply_data(Ring *ring, unsigned char *buffer, int count);
-#ifdef notdef
-extern void
-	ring_consume_data(Ring *ring, unsigned char *buffer, int count);
-#endif
-
-/* Buffer state transition routines */
-extern void
-	ring_supplied(Ring *ring, int count),
-	ring_consumed(Ring *ring, int count);
-
-/* Buffer state query routines */
-extern int
-	ring_at_mark(Ring *),
-	ring_empty_count(Ring *ring),
-	ring_empty_consecutive(Ring *ring),
-	ring_full_count(Ring *ring),
-	ring_full_consecutive(Ring *ring);
-
-
-extern void
-	ring_clear_mark(Ring *),
-	ring_mark(Ring *);
diff --git a/usr.bin/telnet/sys_bsd.c b/usr.bin/telnet/sys_bsd.c
deleted file mode 100644
index 45ef1e2aa3cd..000000000000
--- a/usr.bin/telnet/sys_bsd.c
+++ /dev/null
@@ -1,1145 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)sys_bsd.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * The following routines try to encapsulate what is system dependent
- * (at least between 4.x and dos) which is used in telnet.c.
- */
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <arpa/telnet.h>
-
-#include "ring.h"
-#include "fdset.h"
-#include "defines.h"
-#include "externs.h"
-#include "types.h"
-
-int
-	tout,			/* Output file descriptor */
-	tin,			/* Input file descriptor */
-	net;
-
-#ifndef	USE_TERMIO
-struct	tchars otc = { 0 }, ntc = { 0 };
-struct	ltchars oltc = { 0 }, nltc = { 0 };
-struct	sgttyb ottyb = { 0 }, nttyb = { 0 };
-int	olmode = 0;
-# define cfgetispeed(ptr)	(ptr)->sg_ispeed
-# define cfgetospeed(ptr)	(ptr)->sg_ospeed
-# define old_tc ottyb
-
-#else	/* USE_TERMIO */
-struct	termio old_tc = { 0, 0, 0, 0, {}, 0, 0 };
-
-# ifndef	TCSANOW
-#  ifdef TCSETS
-#   define	TCSANOW		TCSETS
-#   define	TCSADRAIN	TCSETSW
-#   define	tcgetattr(f, t) ioctl(f, TCGETS, (char *)t)
-#  else
-#   ifdef TCSETA
-#    define	TCSANOW		TCSETA
-#    define	TCSADRAIN	TCSETAW
-#    define	tcgetattr(f, t) ioctl(f, TCGETA, (char *)t)
-#   else
-#    define	TCSANOW		TIOCSETA
-#    define	TCSADRAIN	TIOCSETAW
-#    define	tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t)
-#   endif
-#  endif
-#  define	tcsetattr(f, a, t) ioctl(f, a, (char *)t)
-#  define	cfgetospeed(ptr)	((ptr)->c_cflag&CBAUD)
-#  ifdef CIBAUD
-#   define	cfgetispeed(ptr)	(((ptr)->c_cflag&CIBAUD) >> IBSHIFT)
-#  else
-#   define	cfgetispeed(ptr)	cfgetospeed(ptr)
-#  endif
-# endif /* TCSANOW */
-# ifdef	sysV88
-# define TIOCFLUSH TC_PX_DRAIN
-# endif
-#endif	/* USE_TERMIO */
-
-static fd_set *ibitsp, *obitsp, *xbitsp;
-int fdsn;
-
-#ifdef	SIGINT
-static SIG_FUNC_RET intr(int);
-#endif	/* SIGINT */
-#ifdef	SIGQUIT
-static SIG_FUNC_RET intr2(int);
-#endif	/* SIGQUIT */
-#ifdef	SIGTSTP
-static SIG_FUNC_RET susp(int);
-#endif	/* SIGTSTP */
-#ifdef	SIGINFO
-static SIG_FUNC_RET ayt(int);
-#endif
-
-void
-init_sys(void)
-{
-    tout = fileno(stdout);
-    tin = fileno(stdin);
-    errno = 0;
-}
-
-int
-TerminalWrite(char *buf, int n)
-{
-    return write(tout, buf, n);
-}
-
-int
-TerminalRead(char *buf, int n)
-{
-    return read(tin, buf, n);
-}
-
-/*
- *
- */
-
-int
-TerminalAutoFlush(void)
-{
-#if	defined(LNOFLSH)
-    int flush;
-
-    ioctl(0, TIOCLGET, (char *)&flush);
-    return !(flush&LNOFLSH);	/* if LNOFLSH, no autoflush */
-#else	/* LNOFLSH */
-    return 1;
-#endif	/* LNOFLSH */
-}
-
-#ifdef	KLUDGELINEMODE
-extern int kludgelinemode;
-#endif
-/*
- * TerminalSpecialChars()
- *
- * Look at an input character to see if it is a special character
- * and decide what to do.
- *
- * Output:
- *
- *	0	Don't add this character.
- *	1	Do add this character
- */
-
-int
-TerminalSpecialChars(int c)
-{
-    if (c == termIntChar) {
-	intp();
-	return 0;
-    } else if (c == termQuitChar) {
-#ifdef	KLUDGELINEMODE
-	if (kludgelinemode)
-	    sendbrk();
-	else
-#endif
-	    sendabort();
-	return 0;
-    } else if (c == termEofChar) {
-	if (my_want_state_is_will(TELOPT_LINEMODE)) {
-	    sendeof();
-	    return 0;
-	}
-	return 1;
-    } else if (c == termSuspChar) {
-	sendsusp();
-	return(0);
-    } else if (c == termFlushChar) {
-	xmitAO();		/* Transmit Abort Output */
-	return 0;
-    } else if (!MODE_LOCAL_CHARS(globalmode)) {
-	if (c == termKillChar) {
-	    xmitEL();
-	    return 0;
-	} else if (c == termEraseChar) {
-	    xmitEC();		/* Transmit Erase Character */
-	    return 0;
-	}
-    }
-    return 1;
-}
-
-
-/*
- * Flush output to the terminal
- */
-
-void
-TerminalFlushOutput(void)
-{
-#ifdef	TIOCFLUSH
-    (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0);
-#else
-    (void) ioctl(fileno(stdout), TCFLSH, (char *) 0);
-#endif
-}
-
-void
-TerminalSaveState(void)
-{
-#ifndef	USE_TERMIO
-    ioctl(0, TIOCGETP, (char *)&ottyb);
-    ioctl(0, TIOCGETC, (char *)&otc);
-    ioctl(0, TIOCGLTC, (char *)&oltc);
-    ioctl(0, TIOCLGET, (char *)&olmode);
-
-    ntc = otc;
-    nltc = oltc;
-    nttyb = ottyb;
-
-#else	/* USE_TERMIO */
-    tcgetattr(0, &old_tc);
-
-    new_tc = old_tc;
-
-#ifndef	VDISCARD
-    termFlushChar = CONTROL('O');
-#endif
-#ifndef	VWERASE
-    termWerasChar = CONTROL('W');
-#endif
-#ifndef	VREPRINT
-    termRprntChar = CONTROL('R');
-#endif
-#ifndef	VLNEXT
-    termLiteralNextChar = CONTROL('V');
-#endif
-#ifndef	VSTART
-    termStartChar = CONTROL('Q');
-#endif
-#ifndef	VSTOP
-    termStopChar = CONTROL('S');
-#endif
-#ifndef	VSTATUS
-    termAytChar = CONTROL('T');
-#endif
-#endif	/* USE_TERMIO */
-}
-
-cc_t *
-tcval(int func)
-{
-    switch(func) {
-    case SLC_IP:	return(&termIntChar);
-    case SLC_ABORT:	return(&termQuitChar);
-    case SLC_EOF:	return(&termEofChar);
-    case SLC_EC:	return(&termEraseChar);
-    case SLC_EL:	return(&termKillChar);
-    case SLC_XON:	return(&termStartChar);
-    case SLC_XOFF:	return(&termStopChar);
-    case SLC_FORW1:	return(&termForw1Char);
-#ifdef	USE_TERMIO
-    case SLC_FORW2:	return(&termForw2Char);
-# ifdef	VDISCARD
-    case SLC_AO:	return(&termFlushChar);
-# endif
-# ifdef	VSUSP
-    case SLC_SUSP:	return(&termSuspChar);
-# endif
-# ifdef	VWERASE
-    case SLC_EW:	return(&termWerasChar);
-# endif
-# ifdef	VREPRINT
-    case SLC_RP:	return(&termRprntChar);
-# endif
-# ifdef	VLNEXT
-    case SLC_LNEXT:	return(&termLiteralNextChar);
-# endif
-# ifdef	VSTATUS
-    case SLC_AYT:	return(&termAytChar);
-# endif
-#endif
-
-    case SLC_SYNCH:
-    case SLC_BRK:
-    case SLC_EOR:
-    default:
-	return((cc_t *)0);
-    }
-}
-
-void
-TerminalDefaultChars(void)
-{
-#ifndef	USE_TERMIO
-    ntc = otc;
-    nltc = oltc;
-    nttyb.sg_kill = ottyb.sg_kill;
-    nttyb.sg_erase = ottyb.sg_erase;
-#else	/* USE_TERMIO */
-    memcpy(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc));
-# ifndef	VDISCARD
-    termFlushChar = CONTROL('O');
-# endif
-# ifndef	VWERASE
-    termWerasChar = CONTROL('W');
-# endif
-# ifndef	VREPRINT
-    termRprntChar = CONTROL('R');
-# endif
-# ifndef	VLNEXT
-    termLiteralNextChar = CONTROL('V');
-# endif
-# ifndef	VSTART
-    termStartChar = CONTROL('Q');
-# endif
-# ifndef	VSTOP
-    termStopChar = CONTROL('S');
-# endif
-# ifndef	VSTATUS
-    termAytChar = CONTROL('T');
-# endif
-#endif	/* USE_TERMIO */
-}
-
-/*
- * TerminalNewMode - set up terminal to a specific mode.
- *	MODE_ECHO: do local terminal echo
- *	MODE_FLOW: do local flow control
- *	MODE_TRAPSIG: do local mapping to TELNET IAC sequences
- *	MODE_EDIT: do local line editing
- *
- *	Command mode:
- *		MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG
- *		local echo
- *		local editing
- *		local xon/xoff
- *		local signal mapping
- *
- *	Linemode:
- *		local/no editing
- *	Both Linemode and Single Character mode:
- *		local/remote echo
- *		local/no xon/xoff
- *		local/no signal mapping
- */
-
-void
-TerminalNewMode(int f)
-{
-    static int prevmode = 0;
-#ifndef	USE_TERMIO
-    struct tchars tc;
-    struct ltchars ltc;
-    struct sgttyb sb;
-    int lmode;
-#else	/* USE_TERMIO */
-    struct termio tmp_tc;
-#endif	/* USE_TERMIO */
-    int onoff;
-    int old;
-    cc_t esc;
-
-    globalmode = f&~MODE_FORCE;
-    if (prevmode == f)
-	return;
-
-    /*
-     * Write any outstanding data before switching modes
-     * ttyflush() returns 0 only when there is no more data
-     * left to write out, it returns -1 if it couldn't do
-     * anything at all, otherwise it returns 1 + the number
-     * of characters left to write.
-#ifndef	USE_TERMIO
-     * We would really like ask the kernel to wait for the output
-     * to drain, like we can do with the TCSADRAIN, but we don't have
-     * that option.  The only ioctl that waits for the output to
-     * drain, TIOCSETP, also flushes the input queue, which is NOT
-     * what we want (TIOCSETP is like TCSADFLUSH).
-#endif
-     */
-    old = ttyflush(SYNCHing|flushout);
-    if (old < 0 || old > 1) {
-#ifdef	USE_TERMIO
-	tcgetattr(tin, &tmp_tc);
-#endif	/* USE_TERMIO */
-	do {
-	    /*
-	     * Wait for data to drain, then flush again.
-	     */
-#ifdef	USE_TERMIO
-	    tcsetattr(tin, TCSADRAIN, &tmp_tc);
-#endif	/* USE_TERMIO */
-	    old = ttyflush(SYNCHing|flushout);
-	} while (old < 0 || old > 1);
-    }
-
-    old = prevmode;
-    prevmode = f&~MODE_FORCE;
-#ifndef	USE_TERMIO
-    sb = nttyb;
-    tc = ntc;
-    ltc = nltc;
-    lmode = olmode;
-#else
-    tmp_tc = new_tc;
-#endif
-
-    if (f&MODE_ECHO) {
-#ifndef	USE_TERMIO
-	sb.sg_flags |= ECHO;
-#else
-	tmp_tc.c_lflag |= ECHO;
-	tmp_tc.c_oflag |= ONLCR;
-	if (crlf)
-		tmp_tc.c_iflag |= ICRNL;
-#endif
-    } else {
-#ifndef	USE_TERMIO
-	sb.sg_flags &= ~ECHO;
-#else
-	tmp_tc.c_lflag &= ~ECHO;
-	tmp_tc.c_oflag &= ~ONLCR;
-#endif
-    }
-
-    if ((f&MODE_FLOW) == 0) {
-#ifndef	USE_TERMIO
-	tc.t_startc = _POSIX_VDISABLE;
-	tc.t_stopc = _POSIX_VDISABLE;
-#else
-	tmp_tc.c_iflag &= ~(IXOFF|IXON);	/* Leave the IXANY bit alone */
-    } else {
-	if (restartany < 0) {
-		tmp_tc.c_iflag |= IXOFF|IXON;	/* Leave the IXANY bit alone */
-	} else if (restartany > 0) {
-		tmp_tc.c_iflag |= IXOFF|IXON|IXANY;
-	} else {
-		tmp_tc.c_iflag |= IXOFF|IXON;
-		tmp_tc.c_iflag &= ~IXANY;
-	}
-#endif
-    }
-
-    if ((f&MODE_TRAPSIG) == 0) {
-#ifndef	USE_TERMIO
-	tc.t_intrc = _POSIX_VDISABLE;
-	tc.t_quitc = _POSIX_VDISABLE;
-	tc.t_eofc = _POSIX_VDISABLE;
-	ltc.t_suspc = _POSIX_VDISABLE;
-	ltc.t_dsuspc = _POSIX_VDISABLE;
-#else
-	tmp_tc.c_lflag &= ~ISIG;
-#endif
-	localchars = 0;
-    } else {
-#ifdef	USE_TERMIO
-	tmp_tc.c_lflag |= ISIG;
-#endif
-	localchars = 1;
-    }
-
-    if (f&MODE_EDIT) {
-#ifndef	USE_TERMIO
-	sb.sg_flags &= ~CBREAK;
-	sb.sg_flags |= CRMOD;
-#else
-	tmp_tc.c_lflag |= ICANON;
-#endif
-    } else {
-#ifndef	USE_TERMIO
-	sb.sg_flags |= CBREAK;
-	if (f&MODE_ECHO)
-	    sb.sg_flags |= CRMOD;
-	else
-	    sb.sg_flags &= ~CRMOD;
-#else
-	tmp_tc.c_lflag &= ~ICANON;
-	tmp_tc.c_iflag &= ~ICRNL;
-	tmp_tc.c_cc[VMIN] = 1;
-	tmp_tc.c_cc[VTIME] = 0;
-#endif
-    }
-
-    if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) {
-#ifndef	USE_TERMIO
-	ltc.t_lnextc = _POSIX_VDISABLE;
-#else
-# ifdef VLNEXT
-	tmp_tc.c_cc[VLNEXT] = (cc_t)(_POSIX_VDISABLE);
-# endif
-#endif
-    }
-
-    if (f&MODE_SOFT_TAB) {
-#ifndef USE_TERMIO
-	sb.sg_flags |= XTABS;
-#else
-# ifdef	OXTABS
-	tmp_tc.c_oflag |= OXTABS;
-# endif
-# ifdef	TABDLY
-	tmp_tc.c_oflag &= ~TABDLY;
-	tmp_tc.c_oflag |= TAB3;
-# endif
-#endif
-    } else {
-#ifndef USE_TERMIO
-	sb.sg_flags &= ~XTABS;
-#else
-# ifdef	OXTABS
-	tmp_tc.c_oflag &= ~OXTABS;
-# endif
-# ifdef	TABDLY
-	tmp_tc.c_oflag &= ~TABDLY;
-# endif
-#endif
-    }
-
-    if (f&MODE_LIT_ECHO) {
-#ifndef USE_TERMIO
-	lmode &= ~LCTLECH;
-#else
-# ifdef	ECHOCTL
-	tmp_tc.c_lflag &= ~ECHOCTL;
-# endif
-#endif
-    } else {
-#ifndef USE_TERMIO
-	lmode |= LCTLECH;
-#else
-# ifdef	ECHOCTL
-	tmp_tc.c_lflag |= ECHOCTL;
-# endif
-#endif
-    }
-
-    if (f == -1) {
-	onoff = 0;
-    } else {
-#ifndef	USE_TERMIO
-	if (f & MODE_OUTBIN)
-		lmode |= LLITOUT;
-	else
-		lmode &= ~LLITOUT;
-
-	if (f & MODE_INBIN)
-		lmode |= LPASS8;
-	else
-		lmode &= ~LPASS8;
-#else
-	if (f & MODE_INBIN)
-		tmp_tc.c_iflag &= ~ISTRIP;
-	else
-		tmp_tc.c_iflag |= ISTRIP;
-	if (f & MODE_OUTBIN) {
-		tmp_tc.c_cflag &= ~(CSIZE|PARENB);
-		tmp_tc.c_cflag |= CS8;
-		tmp_tc.c_oflag &= ~OPOST;
-	} else {
-		tmp_tc.c_cflag &= ~(CSIZE|PARENB);
-		tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB);
-		tmp_tc.c_oflag |= OPOST;
-	}
-#endif
-	onoff = 1;
-    }
-
-    if (f != -1) {
-#ifdef  SIGINT
-	(void) signal(SIGINT, intr);
-#endif
-#ifdef  SIGQUIT
-	(void) signal(SIGQUIT, intr2);
-#endif
-#ifdef	SIGTSTP
-	(void) signal(SIGTSTP, susp);
-#endif	/* SIGTSTP */
-#ifdef	SIGINFO
-	(void) signal(SIGINFO, ayt);
-#endif
-#if	defined(USE_TERMIO) && defined(NOKERNINFO)
-	tmp_tc.c_lflag |= NOKERNINFO;
-#endif
-	/*
-	 * We don't want to process ^Y here.  It's just another
-	 * character that we'll pass on to the back end.  It has
-	 * to process it because it will be processed when the
-	 * user attempts to read it, not when we send it.
-	 */
-#ifndef	USE_TERMIO
-	ltc.t_dsuspc = _POSIX_VDISABLE;
-#else
-# ifdef	VDSUSP
-	tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE);
-# endif
-#endif
-#ifdef	USE_TERMIO
-	/*
-	 * If the VEOL character is already set, then use VEOL2,
-	 * otherwise use VEOL.
-	 */
-	esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape;
-	if ((tmp_tc.c_cc[VEOL] != esc)
-# ifdef	VEOL2
-	    && (tmp_tc.c_cc[VEOL2] != esc)
-# endif
-	    ) {
-		if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE))
-		    tmp_tc.c_cc[VEOL] = esc;
-# ifdef	VEOL2
-		else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE))
-		    tmp_tc.c_cc[VEOL2] = esc;
-# endif
-	}
-#else
-	if (tc.t_brkc == (cc_t)(_POSIX_VDISABLE))
-		tc.t_brkc = esc;
-#endif
-    } else {
-#ifdef	SIGINFO
-	(void) signal(SIGINFO, (void (*)(int))ayt_status);
-#endif
-#ifdef  SIGINT
-	(void) signal(SIGINT, SIG_DFL);
-#endif
-#ifdef  SIGQUIT
-	(void) signal(SIGQUIT, SIG_DFL);
-#endif
-#ifdef	SIGTSTP
-	(void) signal(SIGTSTP, SIG_DFL);
-# ifndef SOLARIS
-	(void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1)));
-# else	/* SOLARIS */
-	(void) sigrelse(SIGTSTP);
-# endif	/* SOLARIS */
-#endif	/* SIGTSTP */
-#ifndef USE_TERMIO
-	ltc = oltc;
-	tc = otc;
-	sb = ottyb;
-	lmode = olmode;
-#else
-	tmp_tc = old_tc;
-#endif
-    }
-#ifndef USE_TERMIO
-    ioctl(tin, TIOCLSET, (char *)&lmode);
-    ioctl(tin, TIOCSLTC, (char *)&ltc);
-    ioctl(tin, TIOCSETC, (char *)&tc);
-    ioctl(tin, TIOCSETN, (char *)&sb);
-#else
-    if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0)
-	tcsetattr(tin, TCSANOW, &tmp_tc);
-#endif
-
-    ioctl(tin, FIONBIO, (char *)&onoff);
-    ioctl(tout, FIONBIO, (char *)&onoff);
-
-}
-
-/*
- * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD).
- */
-#if B4800 != 4800
-#define	DECODE_BAUD
-#endif
-
-#ifdef	DECODE_BAUD
-#ifndef	B7200
-#define B7200   B4800
-#endif
-
-#ifndef	B14400
-#define B14400  B9600
-#endif
-
-#ifndef	B19200
-# define B19200 B14400
-#endif
-
-#ifndef	B28800
-#define B28800  B19200
-#endif
-
-#ifndef	B38400
-# define B38400 B28800
-#endif
-
-#ifndef B57600
-#define B57600  B38400
-#endif
-
-#ifndef B76800
-#define B76800  B57600
-#endif
-
-#ifndef B115200
-#define B115200 B76800
-#endif
-
-#ifndef B230400
-#define B230400 B115200
-#endif
-
-
-/*
- * This code assumes that the values B0, B50, B75...
- * are in ascending order.  They do not have to be
- * contiguous.
- */
-struct termspeeds {
-	long speed;
-	long value;
-} termspeeds[] = {
-	{ 0,      B0 },      { 50,    B50 },    { 75,     B75 },
-	{ 110,    B110 },    { 134,   B134 },   { 150,    B150 },
-	{ 200,    B200 },    { 300,   B300 },   { 600,    B600 },
-	{ 1200,   B1200 },   { 1800,  B1800 },  { 2400,   B2400 },
-	{ 4800,   B4800 },   { 7200,  B7200 },  { 9600,   B9600 },
-	{ 14400,  B14400 },  { 19200, B19200 }, { 28800,  B28800 },
-	{ 38400,  B38400 },  { 57600, B57600 }, { 115200, B115200 },
-	{ 230400, B230400 }, { -1,    B230400 }
-};
-#endif	/* DECODE_BAUD */
-
-void
-TerminalSpeeds(long *ispeed, long *ospeed)
-{
-#ifdef	DECODE_BAUD
-    struct termspeeds *tp;
-#endif	/* DECODE_BAUD */
-    long in, out;
-
-    out = cfgetospeed(&old_tc);
-    in = cfgetispeed(&old_tc);
-    if (in == 0)
-	in = out;
-
-#ifdef	DECODE_BAUD
-    tp = termspeeds;
-    while ((tp->speed != -1) && (tp->value < in))
-	tp++;
-    *ispeed = tp->speed;
-
-    tp = termspeeds;
-    while ((tp->speed != -1) && (tp->value < out))
-	tp++;
-    *ospeed = tp->speed;
-#else	/* DECODE_BAUD */
-	*ispeed = in;
-	*ospeed = out;
-#endif	/* DECODE_BAUD */
-}
-
-int
-TerminalWindowSize(long *rows, long *cols)
-{
-#ifdef	TIOCGWINSZ
-    struct winsize ws;
-
-    if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) {
-	*rows = ws.ws_row;
-	*cols = ws.ws_col;
-	return 1;
-    }
-#endif	/* TIOCGWINSZ */
-    return 0;
-}
-
-int
-NetClose(int fd)
-{
-    return close(fd);
-}
-
-static void
-NetNonblockingIO(int fd, int onoff)
-{
-    ioctl(fd, FIONBIO, (char *)&onoff);
-}
-
-
-/*
- * Various signal handling routines.
- */
-
-/* ARGSUSED */
-static SIG_FUNC_RET
-deadpeer(int sig __unused)
-{
-	setcommandmode();
-	longjmp(peerdied, -1);
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-intr(int sig __unused)
-{
-    if (localchars) {
-	intp();
-	return;
-    }
-    setcommandmode();
-    longjmp(toplevel, -1);
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-intr2(int sig __unused)
-{
-    if (localchars) {
-#ifdef	KLUDGELINEMODE
-	if (kludgelinemode)
-	    sendbrk();
-	else
-#endif
-	    sendabort();
-	return;
-    }
-}
-
-#ifdef	SIGTSTP
-/* ARGSUSED */
-SIG_FUNC_RET
-susp(int sig __unused)
-{
-    if ((rlogin != _POSIX_VDISABLE) && rlogin_susp())
-	return;
-    if (localchars)
-	sendsusp();
-}
-#endif
-
-#ifdef	SIGWINCH
-/* ARGSUSED */
-static SIG_FUNC_RET
-sendwin(int sig __unused)
-{
-    if (connected) {
-	sendnaws();
-    }
-}
-#endif
-
-#ifdef	SIGINFO
-/* ARGSUSED */
-SIG_FUNC_RET
-ayt(int sig __unused)
-{
-    if (connected)
-	sendayt();
-    else
-	ayt_status();
-}
-#endif
-
-
-void
-sys_telnet_init(void)
-{
-    (void) signal(SIGINT, intr);
-    (void) signal(SIGQUIT, intr2);
-    (void) signal(SIGPIPE, deadpeer);
-#ifdef	SIGWINCH
-    (void) signal(SIGWINCH, sendwin);
-#endif
-#ifdef	SIGTSTP
-    (void) signal(SIGTSTP, susp);
-#endif
-#ifdef	SIGINFO
-    (void) signal(SIGINFO, ayt);
-#endif
-
-    setconnmode(0);
-
-    NetNonblockingIO(net, 1);
-
-#if	defined(SO_OOBINLINE)
-    if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) {
-	perror("SetSockOpt");
-    }
-#endif	/* defined(SO_OOBINLINE) */
-}
-
-/*
- * Process rings -
- *
- *	This routine tries to fill up/empty our various rings.
- *
- *	The parameter specifies whether this is a poll operation,
- *	or a block-until-something-happens operation.
- *
- *	The return value is 1 if something happened, 0 if not.
- */
-
-int
-process_rings(int netin, int netout, int netex, int ttyin, int ttyout, int poll)
-{
-    int c;
-    int returnValue = 0;
-    static struct timeval TimeValue = { 0, 0 };
-    int maxfd = -1;
-    int tmp;
-
-    if ((netout || netin || netex) && net > maxfd)
-	maxfd = net;
-    
-    if (ttyout && tout > maxfd)
-	maxfd = tout;
-    if (ttyin && tin > maxfd)
-	maxfd = tin;
-    tmp = howmany(maxfd+1, NFDBITS) * sizeof(fd_mask);
-    if (tmp > fdsn) {
-	if (ibitsp)
-	    free(ibitsp);
-	if (obitsp)
-	    free(obitsp);
-	if (xbitsp)
-	    free(xbitsp);
-	
-	fdsn = tmp;
-	if ((ibitsp = (fd_set *)malloc(fdsn)) == NULL)
-	    err(1, "malloc");
-	if ((obitsp = (fd_set *)malloc(fdsn)) == NULL)
-	    err(1, "malloc");
-	if ((xbitsp = (fd_set *)malloc(fdsn)) == NULL)
-	    err(1, "malloc");
-	memset(ibitsp, 0, fdsn);
-	memset(obitsp, 0, fdsn);
-	memset(xbitsp, 0, fdsn);
-    }
-    
-    if (netout)
-	FD_SET(net, obitsp);
-    if (ttyout)
-	FD_SET(tout, obitsp);
-    if (ttyin)
-	FD_SET(tin, ibitsp);
-    if (netin)
-	FD_SET(net, ibitsp);
-    if (netex)
-	FD_SET(net, xbitsp);
-    if ((c = select(maxfd + 1, ibitsp, obitsp, xbitsp,
-	     (poll == 0)? (struct timeval *)0 : &TimeValue)) < 0) {
-	if (c == -1) {
-		    /*
-		     * we can get EINTR if we are in line mode,
-		     * and the user does an escape (TSTP), or
-		     * some other signal generator.
-		     */
-	    if (errno == EINTR) {
-		return 0;
-	    }
-		    /* I don't like this, does it ever happen? */
-	    printf("sleep(5) from telnet, after select: %s\r\n", strerror(errno));
-	    sleep(5);
-	}
-	return 0;
-    }
-
-    /*
-     * Any urgent data?
-     */
-    if (FD_ISSET(net, xbitsp)) {
-	FD_CLR(net, xbitsp);
-	SYNCHing = 1;
-	(void) ttyflush(1);	/* flush already enqueued data */
-    }
-
-    /*
-     * Something to read from the network...
-     */
-    if (FD_ISSET(net, ibitsp)) {
-	int canread;
-
-	FD_CLR(net, ibitsp);
-	canread = ring_empty_consecutive(&netiring);
-#if	!defined(SO_OOBINLINE)
-	    /*
-	     * In 4.2 (and some early 4.3) systems, the
-	     * OOB indication and data handling in the kernel
-	     * is such that if two separate TCP Urgent requests
-	     * come in, one byte of TCP data will be overlaid.
-	     * This is fatal for Telnet, but we try to live
-	     * with it.
-	     *
-	     * In addition, in 4.2 (and...), a special protocol
-	     * is needed to pick up the TCP Urgent data in
-	     * the correct sequence.
-	     *
-	     * What we do is:  if we think we are in urgent
-	     * mode, we look to see if we are "at the mark".
-	     * If we are, we do an OOB receive.  If we run
-	     * this twice, we will do the OOB receive twice,
-	     * but the second will fail, since the second
-	     * time we were "at the mark", but there wasn't
-	     * any data there (the kernel doesn't reset
-	     * "at the mark" until we do a normal read).
-	     * Once we've read the OOB data, we go ahead
-	     * and do normal reads.
-	     *
-	     * There is also another problem, which is that
-	     * since the OOB byte we read doesn't put us
-	     * out of OOB state, and since that byte is most
-	     * likely the TELNET DM (data mark), we would
-	     * stay in the TELNET SYNCH (SYNCHing) state.
-	     * So, clocks to the rescue.  If we've "just"
-	     * received a DM, then we test for the
-	     * presence of OOB data when the receive OOB
-	     * fails (and AFTER we did the normal mode read
-	     * to clear "at the mark").
-	     */
-	if (SYNCHing) {
-	    int atmark;
-	    static int bogus_oob = 0, first = 1;
-
-	    ioctl(net, SIOCATMARK, (char *)&atmark);
-	    if (atmark) {
-		c = recv(net, netiring.supply, canread, MSG_OOB);
-		if ((c == -1) && (errno == EINVAL)) {
-		    c = recv(net, netiring.supply, canread, 0);
-		    if (clocks.didnetreceive < clocks.gotDM) {
-			SYNCHing = stilloob(net);
-		    }
-		} else if (first && c > 0) {
-		    /*
-		     * Bogosity check.  Systems based on 4.2BSD
-		     * do not return an error if you do a second
-		     * recv(MSG_OOB).  So, we do one.  If it
-		     * succeeds and returns exactly the same
-		     * data, then assume that we are running
-		     * on a broken system and set the bogus_oob
-		     * flag.  (If the data was different, then
-		     * we probably got some valid new data, so
-		     * increment the count...)
-		     */
-		    int i;
-		    i = recv(net, netiring.supply + c, canread - c, MSG_OOB);
-		    if (i == c &&
-			memcmp(netiring.supply, netiring.supply + c, i) == 0) {
-			bogus_oob = 1;
-			first = 0;
-		    } else if (i < 0) {
-			bogus_oob = 0;
-			first = 0;
-		    } else
-			c += i;
-		}
-		if (bogus_oob && c > 0) {
-		    int i;
-		    /*
-		     * Bogosity.  We have to do the read
-		     * to clear the atmark to get out of
-		     * an infinate loop.
-		     */
-		    i = read(net, netiring.supply + c, canread - c);
-		    if (i > 0)
-			c += i;
-		}
-	    } else {
-		c = recv(net, netiring.supply, canread, 0);
-	    }
-	} else {
-	    c = recv(net, netiring.supply, canread, 0);
-	}
-	settimer(didnetreceive);
-#else	/* !defined(SO_OOBINLINE) */
-	c = recv(net, (char *)netiring.supply, canread, 0);
-#endif	/* !defined(SO_OOBINLINE) */
-	if (c < 0 && errno == EWOULDBLOCK) {
-	    c = 0;
-	} else if (c <= 0) {
-	    return -1;
-	}
-	if (netdata) {
-	    Dump('<', netiring.supply, c);
-	}
-	if (c)
-	    ring_supplied(&netiring, c);
-	returnValue = 1;
-    }
-
-    /*
-     * Something to read from the tty...
-     */
-    if (FD_ISSET(tin, ibitsp)) {
-	FD_CLR(tin, ibitsp);
-	c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring));
-	if (c < 0 && errno == EIO)
-	    c = 0;
-	if (c < 0 && errno == EWOULDBLOCK) {
-	    c = 0;
-	} else {
-	    /* EOF detection for line mode!!!! */
-	    if ((c == 0) && MODE_LOCAL_CHARS(globalmode) && isatty(tin)) {
-			/* must be an EOF... */
-		*ttyiring.supply = termEofChar;
-		c = 1;
-	    }
-	    if (c <= 0) {
-		return -1;
-	    }
-	    if (termdata) {
-		Dump('<', ttyiring.supply, c);
-	    }
-	    ring_supplied(&ttyiring, c);
-	}
-	returnValue = 1;		/* did something useful */
-    }
-
-    if (FD_ISSET(net, obitsp)) {
-	FD_CLR(net, obitsp);
-	returnValue |= netflush();
-    }
-    if (FD_ISSET(tout, obitsp)) {
-	FD_CLR(tout, obitsp);
-	returnValue |= (ttyflush(SYNCHing|flushout) > 0);
-    }
-
-    return returnValue;
-}
diff --git a/usr.bin/telnet/telnet.1 b/usr.bin/telnet/telnet.1
deleted file mode 100644
index 3f2aebd2c8c4..000000000000
--- a/usr.bin/telnet/telnet.1
+++ /dev/null
@@ -1,1423 +0,0 @@
-.\" Copyright (c) 1983, 1990, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)telnet.1	8.6 (Berkeley) 6/1/94
-.\" $FreeBSD$
-.\"
-.Dd January 27, 2000
-.Dt TELNET 1
-.Os
-.Sh NAME
-.Nm telnet
-.Nd user interface to the
-.Tn TELNET
-protocol
-.Sh SYNOPSIS
-.Nm
-.Op Fl 468EFKLNacdfruxy
-.Op Fl S Ar tos
-.Op Fl X Ar authtype
-.Op Fl e Ar escapechar
-.Op Fl k Ar realm
-.Op Fl l Ar user
-.Op Fl n Ar tracefile
-.Op Fl s Ar src_addr
-.Oo
-.Ar host
-.Op Ar port
-.Oc
-.Sh DESCRIPTION
-The
-.Nm
-command
-is used to communicate with another host using the
-.Tn TELNET
-protocol.
-If
-.Nm
-is invoked without the
-.Ar host
-argument, it enters command mode,
-indicated by its prompt
-.Pq Dq Li telnet\&> .
-In this mode, it accepts and executes the commands listed below.
-If it is invoked with arguments, it performs an
-.Ic open
-command with those arguments.
-.Pp
-Options:
-.Bl -tag -width indent
-.It Fl 4
-Forces
-.Nm
-to use IPv4 addresses only.
-.It Fl 6
-Forces
-.Nm
-to use IPv6 addresses only.
-.It Fl 8
-Specifies an 8-bit data path.  This causes an attempt to
-negotiate the
-.Dv TELNET BINARY
-option on both input and output.
-.It Fl E
-Stops any character from being recognized as an escape character.
-.It Fl F
-If Kerberos V5 authentication is being used, the
-.Fl F
-option allows the local credentials to be forwarded
-to the remote system, including any credentials that
-have already been forwarded into the local environment.
-.It Fl K
-Specifies no automatic login to the remote system.
-.It Fl L
-Specifies an 8-bit data path on output.  This causes the
-.Dv BINARY
-option to be negotiated on output.
-.It Fl N
-Prevents IP address to name lookup when destination host is given
-as an IP address.
-.It Fl S Ar tos
-Sets the IP type-of-service (TOS) option for the telnet
-connection to the value
-.Ar tos ,
-which can be a numeric TOS value
-or, on systems that support it, a symbolic
-TOS name found in the
-.Pa /etc/iptos
-file.
-.It Fl X Ar atype
-Disables the
-.Ar atype
-type of authentication.
-.It Fl a
-Attempt automatic login.
-Currently, this sends the user name via the
-.Ev USER
-variable
-of the
-.Ev ENVIRON
-option if supported by the remote system.
-The name used is that of the current user as returned by
-.Xr getlogin 2
-if it agrees with the current user ID,
-otherwise it is the name associated with the user ID.
-.It Fl c
-Disables the reading of the user's
-.Pa \&.telnetrc
-file.  (See the
-.Ic toggle skiprc
-command on this man page.)
-.It Fl d
-Sets the initial value of the
-.Ic debug
-toggle to
-.Dv TRUE .
-.It Fl e Ar escapechar
-Sets the initial
-.Nm
-escape character to
-.Ar escapechar .
-If
-.Ar escapechar
-is omitted, then
-there will be no escape character.
-.It Fl f
-If Kerberos V5 authentication is being used, the
-.Fl f
-option allows the local credentials to be forwarded to the remote system.
-.It Fl k Ar realm
-If Kerberos authentication is being used, the
-.Fl k
-option requests that
-.Nm
-obtain tickets for the remote host in
-realm
-.Ar realm
-instead of the remote host's realm, as determined by
-.Xr krb_realmofhost 3 .
-.It Fl l Ar user
-When connecting to the remote system, if the remote system
-understands the
-.Ev ENVIRON
-option, then
-.Ar user
-will be sent to the remote system as the value for the variable
-.Ev USER .
-This option implies the
-.Fl a
-option.
-This option may also be used with the
-.Ic open
-command.
-.It Fl n Ar tracefile
-Opens
-.Ar tracefile
-for recording trace information.
-See the
-.Ic set tracefile
-command below.
-.It Fl r
-Specifies a user interface similar to
-.Xr rlogin 1 .
-In this
-mode, the escape character is set to the tilde (~) character,
-unless modified by the
-.Fl e
-option.
-.It Fl s Ar src_addr
-Set the source IP address for the
-.Nm
-connection to
-.Ar src_addr ,
-which can be an IP address or a host name.
-.It Fl u
-Forces
-.Nm
-to use
-.Dv AF_UNIX
-addresses only (e.g.,
-.Ux
-domain sockets, accessed with a file path).
-.It Fl x
-Turns on encryption of the data stream if possible.
-.It Fl y
-Suppresses encryption of the data stream.
-.It Ar host
-Indicates the official name, an alias, or the Internet address
-of a remote host.
-If
-.Ar host
-starts with a
-.Ql / ,
-.Nm
-establishes a connection to the corresponding named socket.
-.It Ar port
-Indicates a port number (address of an application).  If a number is
-not specified, the default
-.Nm
-port is used.
-.El
-.Pp
-When in rlogin mode, a line of the form ~.  disconnects from the
-remote host; ~ is the
-.Nm
-escape character.
-Similarly, the line ~^Z suspends the
-.Nm
-session.
-The line ~^] escapes to the normal
-.Nm
-escape prompt.
-.Pp
-Once a connection has been opened,
-.Nm
-will attempt to enable the
-.Dv TELNET LINEMODE
-option.
-If this fails, then
-.Nm
-will revert to one of two input modes:
-either \*(Lqcharacter at a time\*(Rq
-or \*(Lqold line by line\*(Rq
-depending on what the remote system supports.
-.Pp
-When
-.Dv LINEMODE
-is enabled, character processing is done on the
-local system, under the control of the remote system.  When input
-editing or character echoing is to be disabled, the remote system
-will relay that information.  The remote system will also relay
-changes to any special characters that happen on the remote
-system, so that they can take effect on the local system.
-.Pp
-In \*(Lqcharacter at a time\*(Rq mode, most
-text typed is immediately sent to the remote host for processing.
-.Pp
-In \*(Lqold line by line\*(Rq mode, all text is echoed locally,
-and (normally) only completed lines are sent to the remote host.
-The \*(Lqlocal echo character\*(Rq (initially \*(Lq^E\*(Rq) may be used
-to turn off and on the local echo
-(this would mostly be used to enter passwords
-without the password being echoed).
-.Pp
-If the
-.Dv LINEMODE
-option is enabled, or if the
-.Ic localchars
-toggle is
-.Dv TRUE
-(the default for \*(Lqold line by line\*(Rq; see below),
-the user's
-.Ic quit  ,
-.Ic intr ,
-and
-.Ic flush
-characters are trapped locally, and sent as
-.Tn TELNET
-protocol sequences to the remote side.
-If
-.Dv LINEMODE
-has ever been enabled, then the user's
-.Ic susp
-and
-.Ic eof
-are also sent as
-.Tn TELNET
-protocol sequences,
-and
-.Ic quit
-is sent as a
-.Dv TELNET ABORT
-instead of
-.Dv BREAK .
-There are options (see
-.Ic toggle
-.Ic autoflush
-and
-.Ic toggle
-.Ic autosynch
-below)
-which cause this action to flush subsequent output to the terminal
-(until the remote host acknowledges the
-.Tn TELNET
-sequence) and flush previous terminal input
-(in the case of
-.Ic quit
-and
-.Ic intr  ) .
-.Pp
-While connected to a remote host,
-.Nm
-command mode may be entered by typing the
-.Nm
-\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq).
-When in command mode, the normal terminal editing conventions are available.
-.Pp
-The following
-.Nm
-commands are available.
-Only enough of each command to uniquely identify it need be typed
-(this is also true for arguments to the
-.Ic mode  ,
-.Ic set ,
-.Ic toggle  ,
-.Ic unset ,
-.Ic slc  ,
-.Ic environ ,
-and
-.Ic display
-commands).
-.Pp
-.Bl -tag -width "mode type"
-.It Ic auth Ar argument ...
-The auth command manipulates the information sent through the
-.Dv TELNET AUTHENTICATE
-option.  Valid arguments for the
-.Ic auth
-command are:
-.Bl -tag -width "disable type"
-.It Ic disable Ar type
-Disables the specified type of authentication.  To
-obtain a list of available types, use the
-.Ic auth disable ?\&
-command.
-.It Ic enable Ar type
-Enables the specified type of authentication.  To
-obtain a list of available types, use the
-.Ic auth enable ?\&
-command.
-.It Ic status
-Lists the current status of the various types of
-authentication.
-.El
-.It Ic close
-Close a
-.Tn TELNET
-session and return to command mode.
-.It Ic display Ar argument ...
-Displays all, or some, of the
-.Ic set
-and
-.Ic toggle
-values (see below).
-.It Ic encrypt Ar argument ...
-The encrypt command manipulates the information sent through the
-.Dv TELNET ENCRYPT
-option.
-.Pp
-Valid arguments for the
-.Ic encrypt
-command are:
-.Bl -tag -width Ar
-.It Ic disable Ar type Xo
-.Op Cm input | output
-.Xc
-Disables the specified type of encryption.  If you
-omit the input and output, both input and output
-are disabled.  To obtain a list of available
-types, use the
-.Ic encrypt disable ?\&
-command.
-.It Ic enable Ar type Xo
-.Op Cm input | output
-.Xc
-Enables the specified type of encryption.  If you
-omit input and output, both input and output are
-enabled.  To obtain a list of available types, use the
-.Ic encrypt enable ?\&
-command.
-.It Ic input
-This is the same as the
-.Ic encrypt start input
-command.
-.It Ic -input
-This is the same as the
-.Ic encrypt stop input
-command.
-.It Ic output
-This is the same as the
-.Ic encrypt start output
-command.
-.It Ic -output
-This is the same as the
-.Ic encrypt stop output
-command.
-.It Ic start Op Cm input | output
-Attempts to start encryption.  If you omit
-.Ic input
-and
-.Ic output ,
-both input and output are enabled.  To
-obtain a list of available types, use the
-.Ic encrypt enable ?\&
-command.
-.It Ic status
-Lists the current status of encryption.
-.It Ic stop Op Cm input | output
-Stops encryption.  If you omit input and output,
-encryption is on both input and output.
-.It Ic type Ar type
-Sets the default type of encryption to be used
-with later
-.Ic encrypt start
-or
-.Ic encrypt stop
-commands.
-.El
-.It Ic environ Ar arguments ...
-The
-.Ic environ
-command is used to manipulate the
-variables that may be sent through the
-.Dv TELNET ENVIRON
-option.
-The initial set of variables is taken from the users
-environment, with only the
-.Ev DISPLAY
-and
-.Ev PRINTER
-variables being exported by default.
-The
-.Ev USER
-variable is also exported if the
-.Fl a
-or
-.Fl l
-options are used.
-.Pp
-Valid arguments for the
-.Ic environ
-command are:
-.Bl -tag -width Fl
-.It Ic define Ar variable value
-Define the variable
-.Ar variable
-to have a value of
-.Ar value .
-Any variables defined by this command are automatically exported.
-The
-.Ar value
-may be enclosed in single or double quotes so
-that tabs and spaces may be included.
-.It Ic undefine Ar variable
-Remove
-.Ar variable
-from the list of environment variables.
-.It Ic export Ar variable
-Mark the variable
-.Ar variable
-to be exported to the remote side.
-.It Ic unexport Ar variable
-Mark the variable
-.Ar variable
-to not be exported unless
-explicitly asked for by the remote side.
-.It Ic list
-List the current set of environment variables.
-Those marked with a
-.Cm *
-will be sent automatically,
-other variables will only be sent if explicitly requested.
-.It Ic ?\&
-Prints out help information for the
-.Ic environ
-command.
-.El
-.It Ic logout
-Sends the
-.Dv TELNET LOGOUT
-option to the remote side.
-This command is similar to a
-.Ic close
-command; however, if the remote side does not support the
-.Dv LOGOUT
-option, nothing happens.
-If, however, the remote side does support the
-.Dv LOGOUT
-option, this command should cause the remote side to close the
-.Tn TELNET
-connection.
-If the remote side also supports the concept of
-suspending a user's session for later reattachment,
-the logout argument indicates that you
-should terminate the session immediately.
-.It Ic mode Ar type
-.Ar Type
-is one of several options, depending on the state of the
-.Tn TELNET
-session.
-The remote host is asked for permission to go into the requested mode.
-If the remote host is capable of entering that mode, the requested
-mode will be entered.
-.Bl -tag -width Ar
-.It Ic character
-Disable the
-.Dv TELNET LINEMODE
-option, or, if the remote side does not understand the
-.Dv LINEMODE
-option, then enter \*(Lqcharacter at a time\*(Rq mode.
-.It Ic line
-Enable the
-.Dv TELNET LINEMODE
-option, or, if the remote side does not understand the
-.Dv LINEMODE
-option, then attempt to enter \*(Lqold-line-by-line\*(Rq mode.
-.It Ic isig Pq Ic \-isig
-Attempt to enable (disable) the
-.Dv TRAPSIG
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic edit Pq Ic \-edit
-Attempt to enable (disable) the
-.Dv EDIT
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic softtabs Pq Ic \-softtabs
-Attempt to enable (disable) the
-.Dv SOFT_TAB
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic litecho Pq Ic \-litecho
-Attempt to enable (disable) the
-.Dv LIT_ECHO
-mode of the
-.Dv LINEMODE
-option.
-This requires that the
-.Dv LINEMODE
-option be enabled.
-.It Ic ?\&
-Prints out help information for the
-.Ic mode
-command.
-.El
-.It Xo
-.Ic open Ar host
-.Op Fl l Ar user
-.Op Oo Fl Oc Ns Ar port
-.Xc
-Open a connection to the named host.
-If no port number
-is specified,
-.Nm
-will attempt to contact a
-.Tn TELNET
-server at the default port.
-The host specification may be either a host name (see
-.Xr hosts  5  ) ,
-an Internet address specified in the \*(Lqdot notation\*(Rq (see
-.Xr inet 3 ) ,
-or IPv6 host name or IPv6 coloned-hexadecimal address.
-The
-.Fl l
-option may be used to specify the user name
-to be passed to the remote system via the
-.Ev ENVIRON
-option.
-When connecting to a non-standard port,
-.Nm
-omits any automatic initiation of
-.Tn TELNET
-options.  When the port number is preceded by a minus sign,
-the initial option negotiation is done.
-After establishing a connection, the file
-.Pa \&.telnetrc
-in the
-users home directory is opened.  Lines beginning with a # are
-comment lines.  Blank lines are ignored.  Lines that begin
-without white space are the start of a machine entry.  The
-first thing on the line is the name of the machine that is
-being connected to.  The rest of the line, and successive
-lines that begin with white space are assumed to be
-.Nm
-commands and are processed as if they had been typed
-in manually to the
-.Nm
-command prompt.
-.It Ic quit
-Close any open
-.Tn TELNET
-session and exit
-.Nm .
-An end of file (in command mode) will also close a session and exit.
-.It Ic send Ar arguments
-Sends one or more special character sequences to the remote host.
-The following are the arguments which may be specified
-(more than one argument may be specified at a time):
-.Pp
-.Bl -tag -width escape
-.It Ic abort
-Sends the
-.Dv TELNET ABORT
-(Abort
-processes)
-sequence.
-.It Ic ao
-Sends the
-.Dv TELNET AO
-(Abort Output) sequence, which should cause the remote system to flush
-all output
-.Em from
-the remote system
-.Em to
-the user's terminal.
-.It Ic ayt
-Sends the
-.Dv TELNET AYT
-(Are You There)
-sequence, to which the remote system may or may not choose to respond.
-.It Ic brk
-Sends the
-.Dv TELNET BRK
-(Break) sequence, which may have significance to the remote
-system.
-.It Ic ec
-Sends the
-.Dv TELNET EC
-(Erase Character)
-sequence, which should cause the remote system to erase the last character
-entered.
-.It Ic el
-Sends the
-.Dv TELNET EL
-(Erase Line)
-sequence, which should cause the remote system to erase the line currently
-being entered.
-.It Ic eof
-Sends the
-.Dv TELNET EOF
-(End Of File)
-sequence.
-.It Ic eor
-Sends the
-.Dv TELNET EOR
-(End of Record)
-sequence.
-.It Ic escape
-Sends the current
-.Nm
-escape character (initially \*(Lq^\*(Rq).
-.It Ic ga
-Sends the
-.Dv TELNET GA
-(Go Ahead)
-sequence, which likely has no significance to the remote system.
-.It Ic getstatus
-If the remote side supports the
-.Dv TELNET STATUS
-command,
-.Ic getstatus
-will send the subnegotiation to request that the server send
-its current option status.
-.It Ic ip
-Sends the
-.Dv TELNET IP
-(Interrupt Process) sequence, which should cause the remote
-system to abort the currently running process.
-.It Ic nop
-Sends the
-.Dv TELNET NOP
-(No OPeration)
-sequence.
-.It Ic susp
-Sends the
-.Dv TELNET SUSP
-(SUSPend process)
-sequence.
-.It Ic synch
-Sends the
-.Dv TELNET SYNCH
-sequence.
-This sequence causes the remote system to discard all previously typed
-(but not yet read) input.
-This sequence is sent as
-.Tn TCP
-urgent
-data (and may not work if the remote system is a
-.Bx 4.2
-system -- if
-it doesn't work, a lower case \*(Lqr\*(Rq may be echoed on the terminal).
-.It Ic do Ar cmd
-.It Ic dont Ar cmd
-.It Ic will Ar cmd
-.It Ic wont Ar cmd
-Sends the
-.Dv TELNET DO
-.Ar cmd
-sequence.
-.Ar Cmd
-can be either a decimal number between 0 and 255,
-or a symbolic name for a specific
-.Dv TELNET
-command.
-.Ar Cmd
-can also be either
-.Ic help
-or
-.Ic ?\&
-to print out help information, including
-a list of known symbolic names.
-.It Ic ?\&
-Prints out help information for the
-.Ic send
-command.
-.El
-.It Ic set Ar argument value
-.It Ic unset Ar argument value
-The
-.Ic set
-command will set any one of a number of
-.Nm
-variables to a specific value or to
-.Dv TRUE .
-The special value
-.Ic off
-turns off the function associated with
-the variable, this is equivalent to using the
-.Ic unset
-command.
-The
-.Ic unset
-command will disable or set to
-.Dv FALSE
-any of the specified functions.
-The values of variables may be interrogated with the
-.Ic display
-command.
-The variables which may be set or unset, but not toggled, are
-listed here.  In addition, any of the variables for the
-.Ic toggle
-command may be explicitly set or unset using
-the
-.Ic set
-and
-.Ic unset
-commands.
-.Bl -tag -width escape
-.It Ic ayt
-If
-.Tn TELNET
-is in localchars mode, or
-.Dv LINEMODE
-is enabled, and the status character is typed, a
-.Dv TELNET AYT
-sequence (see
-.Ic send ayt
-preceding) is sent to the
-remote host.  The initial value for the \*(LqAre You There\*(Rq
-character is the terminal's status character.
-.It Ic echo
-This is the value (initially \*(Lq^E\*(Rq) which, when in
-\*(Lqline by line\*(Rq mode, toggles between doing local echoing
-of entered characters (for normal processing), and suppressing
-echoing of entered characters (for entering, say, a password).
-.It Ic eof
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, entering this character
-as the first character on a line will cause this character to be
-sent to the remote system.
-The initial value of the eof character is taken to be the terminal's
-.Ic eof
-character.
-.It Ic erase
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below),
-.Sy and
-if
-.Nm
-is operating in \*(Lqcharacter at a time\*(Rq mode, then when this
-character is typed, a
-.Dv TELNET EC
-sequence (see
-.Ic send
-.Ic ec
-above)
-is sent to the remote system.
-The initial value for the erase character is taken to be
-the terminal's
-.Ic erase
-character.
-.It Ic escape
-This is the
-.Nm
-escape character (initially \*(Lq^[\*(Rq) which causes entry
-into
-.Nm
-command mode (when connected to a remote system).
-.It Ic flushoutput
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below)
-and the
-.Ic flushoutput
-character is typed, a
-.Dv TELNET AO
-sequence (see
-.Ic send
-.Ic ao
-above)
-is sent to the remote host.
-The initial value for the flush character is taken to be
-the terminal's
-.Ic flush
-character.
-.It Ic forw1
-.It Ic forw2
-If
-.Nm
-is operating in
-.Dv LINEMODE ,
-these are the
-characters that, when typed, cause partial lines to be
-forwarded to the remote system.  The initial value for
-the forwarding characters are taken from the terminal's
-eol and eol2 characters.
-.It Ic interrupt
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below)
-and the
-.Ic interrupt
-character is typed, a
-.Dv TELNET IP
-sequence (see
-.Ic send
-.Ic ip
-above)
-is sent to the remote host.
-The initial value for the interrupt character is taken to be
-the terminal's
-.Ic intr
-character.
-.It Ic kill
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below),
-.Ic and
-if
-.Nm
-is operating in \*(Lqcharacter at a time\*(Rq mode, then when this
-character is typed, a
-.Dv TELNET EL
-sequence (see
-.Ic send
-.Ic el
-above)
-is sent to the remote system.
-The initial value for the kill character is taken to be
-the terminal's
-.Ic kill
-character.
-.It Ic lnext
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, then this character is taken to
-be the terminal's
-.Ic lnext
-character.
-The initial value for the lnext character is taken to be
-the terminal's
-.Ic lnext
-character.
-.It Ic quit
-If
-.Nm
-is in
-.Ic localchars
-mode (see
-.Ic toggle
-.Ic localchars
-below)
-and the
-.Ic quit
-character is typed, a
-.Dv TELNET BRK
-sequence (see
-.Ic send
-.Ic brk
-above)
-is sent to the remote host.
-The initial value for the quit character is taken to be
-the terminal's
-.Ic quit
-character.
-.It Ic reprint
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, then this character is taken to
-be the terminal's
-.Ic reprint
-character.
-The initial value for the reprint character is taken to be
-the terminal's
-.Ic reprint
-character.
-.It Ic rlogin
-This is the rlogin escape character.
-If set, the normal
-.Nm
-escape character is ignored unless it is
-preceded by this character at the beginning of a line.
-This character, at the beginning of a line followed by
-a "."  closes the connection; when followed by a ^Z it
-suspends the
-.Nm
-command.  The initial state is to
-disable the
-.Nm rlogin
-escape character.
-.It Ic start
-If the
-.Dv TELNET TOGGLE-FLOW-CONTROL
-option has been enabled,
-then this character is taken to
-be the terminal's
-.Ic start
-character.
-The initial value for the start character is taken to be
-the terminal's
-.Ic start
-character.
-.It Ic stop
-If the
-.Dv TELNET TOGGLE-FLOW-CONTROL
-option has been enabled,
-then this character is taken to
-be the terminal's
-.Ic stop
-character.
-The initial value for the stop character is taken to be
-the terminal's
-.Ic stop
-character.
-.It Ic susp
-If
-.Nm
-is in
-.Ic localchars
-mode, or
-.Dv LINEMODE
-is enabled, and the
-.Ic suspend
-character is typed, a
-.Dv TELNET SUSP
-sequence (see
-.Ic send
-.Ic susp
-above)
-is sent to the remote host.
-The initial value for the suspend character is taken to be
-the terminal's
-.Ic suspend
-character.
-.It Ic tracefile
-This is the file to which the output, caused by
-.Ic netdata
-or
-.Ic option
-tracing being
-.Dv TRUE ,
-will be written.  If it is set to
-.Dq Fl ,
-then tracing information will be written to standard output (the default).
-.It Ic worderase
-If
-.Nm
-is operating in
-.Dv LINEMODE
-or \*(Lqold line by line\*(Rq mode, then this character is taken to
-be the terminal's
-.Ic worderase
-character.
-The initial value for the worderase character is taken to be
-the terminal's
-.Ic worderase
-character.
-.It Ic ?\&
-Displays the legal
-.Ic set
-.Pq Ic unset
-commands.
-.El
-.It Ic opie Ar sequence challenge
-The
-.Ic opie
-command computes a response to the OPIE challenge.
-.It Ic slc Ar state
-The
-.Ic slc
-command (Set Local Characters) is used to set
-or change the state of the special
-characters when the
-.Dv TELNET LINEMODE
-option has
-been enabled.  Special characters are characters that get
-mapped to
-.Tn TELNET
-commands sequences (like
-.Ic ip
-or
-.Ic quit  )
-or line editing characters (like
-.Ic erase
-and
-.Ic kill  ) .
-By default, the local special characters are exported.
-.Bl -tag -width Fl
-.It Ic check
-Verify the current settings for the current special characters.
-The remote side is requested to send all the current special
-character settings, and if there are any discrepancies with
-the local side, the local side will switch to the remote value.
-.It Ic export
-Switch to the local defaults for the special characters.  The
-local default characters are those of the local terminal at
-the time when
-.Nm
-was started.
-.It Ic import
-Switch to the remote defaults for the special characters.
-The remote default characters are those of the remote system
-at the time when the
-.Tn TELNET
-connection was established.
-.It Ic ?\&
-Prints out help information for the
-.Ic slc
-command.
-.El
-.It Ic status
-Show the current status of
-.Nm .
-This includes the peer one is connected to, as well
-as the current mode.
-.It Ic toggle Ar arguments ...
-Toggle (between
-.Dv TRUE
-and
-.Dv FALSE )
-various flags that control how
-.Nm
-responds to events.
-These flags may be set explicitly to
-.Dv TRUE
-or
-.Dv FALSE
-using the
-.Ic set
-and
-.Ic unset
-commands listed above.
-More than one argument may be specified.
-The state of these flags may be interrogated with the
-.Ic display
-command.
-Valid arguments are:
-.Bl -tag -width Ar
-.It Ic authdebug
-Turns on debugging information for the authentication code.
-.It Ic autoflush
-If
-.Ic autoflush
-and
-.Ic localchars
-are both
-.Dv TRUE ,
-then when the
-.Ic ao  ,
-or
-.Ic quit
-characters are recognized (and transformed into
-.Tn TELNET
-sequences; see
-.Ic set
-above for details),
-.Nm
-refuses to display any data on the user's terminal
-until the remote system acknowledges (via a
-.Dv TELNET TIMING MARK
-option)
-that it has processed those
-.Tn TELNET
-sequences.
-The initial value for this toggle is
-.Dv TRUE
-if the terminal user had not
-done an "stty noflsh", otherwise
-.Dv FALSE
-(see
-.Xr stty  1  ) .
-.It Ic autodecrypt
-When the
-.Dv TELNET ENCRYPT
-option is negotiated, by
-default the actual encryption (decryption) of the data
-stream does not start automatically.  The autoencrypt
-(autodecrypt) command states that encryption of the
-output (input) stream should be enabled as soon as
-possible.
-.It Ic autologin
-If the remote side supports the
-.Dv TELNET AUTHENTICATION
-option
-.Nm
-attempts to use it to perform automatic authentication.  If the
-.Dv AUTHENTICATION
-option is not supported, the user's login
-name are propagated through the
-.Dv TELNET ENVIRON
-option.
-This command is the same as specifying
-.Fl a
-option on the
-.Ic open
-command.
-.It Ic autosynch
-If
-.Ic autosynch
-and
-.Ic localchars
-are both
-.Dv TRUE ,
-then when either the
-.Ic intr
-or
-.Ic quit
-characters is typed (see
-.Ic set
-above for descriptions of the
-.Ic intr
-and
-.Ic quit
-characters), the resulting
-.Tn TELNET
-sequence sent is followed by the
-.Dv TELNET SYNCH
-sequence.
-This procedure
-.Ic should
-cause the remote system to begin throwing away all previously
-typed input until both of the
-.Tn TELNET
-sequences have been read and acted upon.
-The initial value of this toggle is
-.Dv FALSE .
-.It Ic binary
-Enable or disable the
-.Dv TELNET BINARY
-option on both input and output.
-.It Ic inbinary
-Enable or disable the
-.Dv TELNET BINARY
-option on input.
-.It Ic outbinary
-Enable or disable the
-.Dv TELNET BINARY
-option on output.
-.It Ic crlf
-If this is
-.Dv TRUE ,
-then carriage returns will be sent as
-.Li <CR><LF> .
-If this is
-.Dv FALSE ,
-then carriage returns will be send as
-.Li <CR><NUL> .
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic crmod
-Toggle carriage return mode.
-When this mode is enabled, most carriage return characters received from
-the remote host will be mapped into a carriage return followed by
-a line feed.
-This mode does not affect those characters typed by the user, only
-those received from the remote host.
-This mode is not very useful unless the remote host
-only sends carriage return, but never line feed.
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic debug
-Toggles socket level debugging (useful only to the
-.Ic super user  ) .
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic encdebug
-Turns on debugging information for the encryption code.
-.It Ic localchars
-If this is
-.Dv TRUE ,
-then the
-.Ic flush  ,
-.Ic interrupt ,
-.Ic quit  ,
-.Ic erase ,
-and
-.Ic kill
-characters (see
-.Ic set
-above) are recognized locally, and transformed into (hopefully) appropriate
-.Tn TELNET
-control sequences
-(respectively
-.Ic ao  ,
-.Ic ip ,
-.Ic brk  ,
-.Ic ec ,
-and
-.Ic el  ;
-see
-.Ic send
-above).
-The initial value for this toggle is
-.Dv TRUE
-in \*(Lqold line by line\*(Rq mode,
-and
-.Dv FALSE
-in \*(Lqcharacter at a time\*(Rq mode.
-When the
-.Dv LINEMODE
-option is enabled, the value of
-.Ic localchars
-is ignored, and assumed to always be
-.Dv TRUE .
-If
-.Dv LINEMODE
-has ever been enabled, then
-.Ic quit
-is sent as
-.Ic abort  ,
-and
-.Ic eof
-and
-.Ic suspend
-are sent as
-.Ic eof
-and
-.Ic susp
-(see
-.Ic send
-above).
-.It Ic netdata
-Toggles the display of all network data (in hexadecimal format).
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic options
-Toggles the display of some internal
-.Nm
-protocol processing (having to do with
-.Tn TELNET
-options).
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic prettydump
-When the
-.Ic netdata
-toggle is enabled, if
-.Ic prettydump
-is enabled the output from the
-.Ic netdata
-command will be formatted in a more user readable format.
-Spaces are put between each character in the output, and the
-beginning of any
-.Nm
-escape sequence is preceded by a '*' to aid in locating them.
-.It Ic skiprc
-When the skiprc toggle is
-.Dv TRUE ,
-.Nm
-skips the reading of the
-.Pa \&.telnetrc
-file in the users home
-directory when connections are opened.  The initial
-value for this toggle is
-.Dv FALSE .
-.It Ic termdata
-Toggles the display of all terminal data (in hexadecimal format).
-The initial value for this toggle is
-.Dv FALSE .
-.It Ic verbose_encrypt
-When the
-.Ic verbose_encrypt
-toggle is
-.Dv TRUE ,
-.Nm
-prints out a message each time encryption is enabled or
-disabled.  The initial value for this toggle is
-.Dv FALSE .
-.It Ic ?\&
-Displays the legal
-.Ic toggle
-commands.
-.El
-.It Ic z
-Suspend
-.Nm .
-This command only works when the user is using the
-.Xr csh  1  .
-.It Ic \&! Op Ar command
-Execute a single command in a subshell on the local
-system.  If
-.Ar command
-is omitted, then an interactive
-subshell is invoked.
-.It Ic ?\& Op Ar command
-Get help.  With no arguments,
-.Nm
-prints a help summary.
-If
-.Ar command
-is specified,
-.Nm
-will print the help information for just that command.
-.El
-.Sh ENVIRONMENT
-The
-.Nm
-utility uses at least the
-.Ev HOME ,
-.Ev SHELL ,
-.Ev DISPLAY ,
-and
-.Ev TERM
-environment variables.
-Other environment variables may be propagated
-to the other side via the
-.Dv TELNET ENVIRON
-option.
-.Sh SEE ALSO
-.Xr rlogin 1 ,
-.Xr rsh 1 ,
-.Xr hosts 5 ,
-.Xr nologin 5 ,
-.Xr telnetd 8
-.Sh FILES
-.Bl -tag -width ~/.telnetrc -compact
-.It Pa ~/.telnetrc
-user customized telnet startup values
-.El
-.Sh HISTORY
-The
-.Nm
-command appeared in
-.Bx 4.2 .
-.Pp
-IPv6 support was added by WIDE/KAME project.
-.Sh NOTES
-On some remote systems, echo has to be turned off manually when in
-\*(Lqold line by line\*(Rq mode.
-.Pp
-In \*(Lqold line by line\*(Rq mode or
-.Dv LINEMODE
-the terminal's
-.Ic eof
-character is only recognized (and sent to the remote system)
-when it is the first character on a line.
diff --git a/usr.bin/telnet/telnet.c b/usr.bin/telnet/telnet.c
deleted file mode 100644
index 75c27a5cc119..000000000000
--- a/usr.bin/telnet/telnet.c
+++ /dev/null
@@ -1,2215 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)telnet.c	8.4 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-
-/* By the way, we need to include curses.h before telnet.h since,
- * among other things, telnet.h #defines 'DO', which is a variable
- * declared in curses.h.
- */
-
-#include <ctype.h>
-#include <curses.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <term.h>
-#include <unistd.h>
-#include <arpa/telnet.h>
-
-#include "ring.h"
-
-#include "defines.h"
-#include "externs.h"
-#include "types.h"
-#include "general.h"
-
-#include <libtelnet/misc.h>
-
-#define	strip(x) ((my_want_state_is_wont(TELOPT_BINARY)) ? ((x)&0x7f) : (x))
-
-static unsigned char	subbuffer[SUBBUFSIZE],
-			*subpointer, *subend;	 /* buffer for sub-options */
-#define	SB_CLEAR()	subpointer = subbuffer;
-#define	SB_TERM()	{ subend = subpointer; SB_CLEAR(); }
-#define	SB_ACCUM(c)	if (subpointer < (subbuffer+sizeof subbuffer)) { \
-				*subpointer++ = (c); \
-			}
-
-#define	SB_GET()	((*subpointer++)&0xff)
-#define	SB_PEEK()	((*subpointer)&0xff)
-#define	SB_EOF()	(subpointer >= subend)
-#define	SB_LEN()	(subend - subpointer)
-
-char	options[256];		/* The combined options */
-char	do_dont_resp[256];
-char	will_wont_resp[256];
-
-int
-	eight = 0,
-	autologin = 0,	/* Autologin anyone? */
-	skiprc = 0,
-	connected,
-	showoptions,
-	ISend,		/* trying to send network data in */
-	telnet_debug = 0,
-	crmod,
-	netdata,	/* Print out network data flow */
-	crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
-	telnetport,
-	SYNCHing,	/* we are in TELNET SYNCH mode */
-	flushout,	/* flush output */
-	autoflush = 0,	/* flush output when interrupting? */
-	autosynch,	/* send interrupt characters with SYNCH? */
-	localflow,	/* we handle flow control locally */
-	restartany,	/* if flow control enabled, restart on any character */
-	localchars,	/* we recognize interrupt/quit */
-	donelclchars,	/* the user has set "localchars" */
-	donebinarytoggle,	/* the user has put us in binary */
-	dontlecho,	/* do we suppress local echoing right now? */
-	globalmode,
-	doaddrlookup = 1, /* do a reverse address lookup? */
-	clienteof = 0;
-
-char *prompt = 0;
-
-cc_t escape;
-cc_t rlogin;
-#ifdef	KLUDGELINEMODE
-cc_t echoc;
-#endif
-
-/*
- * Telnet receiver states for fsm
- */
-#define	TS_DATA		0
-#define	TS_IAC		1
-#define	TS_WILL		2
-#define	TS_WONT		3
-#define	TS_DO		4
-#define	TS_DONT		5
-#define	TS_CR		6
-#define	TS_SB		7		/* sub-option collection */
-#define	TS_SE		8		/* looking for sub-option end */
-
-static int	telrcv_state;
-#ifdef	OLD_ENVIRON
-unsigned char telopt_environ = TELOPT_NEW_ENVIRON;
-#else
-# define telopt_environ TELOPT_NEW_ENVIRON
-#endif
-
-jmp_buf	toplevel;
-jmp_buf	peerdied;
-
-int	flushline;
-int	linemode;
-
-#ifdef	KLUDGELINEMODE
-int	kludgelinemode = 1;
-#endif
-
-static int is_unique(char *, char **, char **);
-
-/*
- * The following are some clocks used to decide how to interpret
- * the relationship between various variables.
- */
-
-Clocks clocks;
-
-/*
- * Initialize telnet environment.
- */
-
-void
-init_telnet(void)
-{
-    env_init();
-
-    SB_CLEAR();
-    ClearArray(options);
-
-    connected = ISend = localflow = donebinarytoggle = 0;
-    restartany = -1;
-
-    SYNCHing = 0;
-
-    /* Don't change NetTrace */
-
-    escape = CONTROL(']');
-    rlogin = _POSIX_VDISABLE;
-#ifdef	KLUDGELINEMODE
-    echoc = CONTROL('E');
-#endif
-
-    flushline = 1;
-    telrcv_state = TS_DATA;
-}
-
-
-/*
- * These routines are in charge of sending option negotiations
- * to the other side.
- *
- * The basic idea is that we send the negotiation if either side
- * is in disagreement as to what the current state should be.
- */
-
-void
-send_do(int c, int init)
-{
-    if (init) {
-	if (((do_dont_resp[c] == 0) && my_state_is_do(c)) ||
-				my_want_state_is_do(c))
-	    return;
-	set_my_want_state_do(c);
-	do_dont_resp[c]++;
-    }
-    NET2ADD(IAC, DO);
-    NETADD(c);
-    printoption("SENT", DO, c);
-}
-
-void
-send_dont(int c, int init)
-{
-    if (init) {
-	if (((do_dont_resp[c] == 0) && my_state_is_dont(c)) ||
-				my_want_state_is_dont(c))
-	    return;
-	set_my_want_state_dont(c);
-	do_dont_resp[c]++;
-    }
-    NET2ADD(IAC, DONT);
-    NETADD(c);
-    printoption("SENT", DONT, c);
-}
-
-void
-send_will(int c, int init)
-{
-    if (init) {
-	if (((will_wont_resp[c] == 0) && my_state_is_will(c)) ||
-				my_want_state_is_will(c))
-	    return;
-	set_my_want_state_will(c);
-	will_wont_resp[c]++;
-    }
-    NET2ADD(IAC, WILL);
-    NETADD(c);
-    printoption("SENT", WILL, c);
-}
-
-void
-send_wont(int c, int init)
-{
-    if (init) {
-	if (((will_wont_resp[c] == 0) && my_state_is_wont(c)) ||
-				my_want_state_is_wont(c))
-	    return;
-	set_my_want_state_wont(c);
-	will_wont_resp[c]++;
-    }
-    NET2ADD(IAC, WONT);
-    NETADD(c);
-    printoption("SENT", WONT, c);
-}
-
-void
-willoption(int option)
-{
-	int new_state_ok = 0;
-
-	if (do_dont_resp[option]) {
-	    --do_dont_resp[option];
-	    if (do_dont_resp[option] && my_state_is_do(option))
-		--do_dont_resp[option];
-	}
-
-	if ((do_dont_resp[option] == 0) && my_want_state_is_dont(option)) {
-
-	    switch (option) {
-
-	    case TELOPT_ECHO:
-	    case TELOPT_BINARY:
-	    case TELOPT_SGA:
-		settimer(modenegotiated);
-		/* FALLTHROUGH */
-	    case TELOPT_STATUS:
-		new_state_ok = 1;
-		break;
-
-	    case TELOPT_TM:
-		if (flushout)
-		    flushout = 0;
-		/*
-		 * Special case for TM.  If we get back a WILL,
-		 * pretend we got back a WONT.
-		 */
-		set_my_want_state_dont(option);
-		set_my_state_dont(option);
-		return;			/* Never reply to TM will's/wont's */
-
-	    case TELOPT_LINEMODE:
-	    default:
-		break;
-	    }
-
-	    if (new_state_ok) {
-		set_my_want_state_do(option);
-		send_do(option, 0);
-		setconnmode(0);		/* possibly set new tty mode */
-	    } else {
-		do_dont_resp[option]++;
-		send_dont(option, 0);
-	    }
-	}
-	set_my_state_do(option);
-}
-
-void
-wontoption(int option)
-{
-	if (do_dont_resp[option]) {
-	    --do_dont_resp[option];
-	    if (do_dont_resp[option] && my_state_is_dont(option))
-		--do_dont_resp[option];
-	}
-
-	if ((do_dont_resp[option] == 0) && my_want_state_is_do(option)) {
-
-	    switch (option) {
-
-#ifdef	KLUDGELINEMODE
-	    case TELOPT_SGA:
-		if (!kludgelinemode)
-		    break;
-		/* FALLTHROUGH */
-#endif
-	    case TELOPT_ECHO:
-		settimer(modenegotiated);
-		break;
-
-	    case TELOPT_TM:
-		if (flushout)
-		    flushout = 0;
-		set_my_want_state_dont(option);
-		set_my_state_dont(option);
-		return;		/* Never reply to TM will's/wont's */
-
-	    default:
-		break;
-	    }
-	    set_my_want_state_dont(option);
-	    if (my_state_is_do(option))
-		send_dont(option, 0);
-	    setconnmode(0);			/* Set new tty mode */
-	} else if (option == TELOPT_TM) {
-	    /*
-	     * Special case for TM.
-	     */
-	    if (flushout)
-		flushout = 0;
-	    set_my_want_state_dont(option);
-	}
-	set_my_state_dont(option);
-}
-
-static void
-dooption(int option)
-{
-	int new_state_ok = 0;
-
-	if (will_wont_resp[option]) {
-	    --will_wont_resp[option];
-	    if (will_wont_resp[option] && my_state_is_will(option))
-		--will_wont_resp[option];
-	}
-
-	if (will_wont_resp[option] == 0) {
-	  if (my_want_state_is_wont(option)) {
-
-	    switch (option) {
-
-	    case TELOPT_TM:
-		/*
-		 * Special case for TM.  We send a WILL, but pretend
-		 * we sent WONT.
-		 */
-		send_will(option, 0);
-		set_my_want_state_wont(TELOPT_TM);
-		set_my_state_wont(TELOPT_TM);
-		return;
-
-	    case TELOPT_BINARY:		/* binary mode */
-	    case TELOPT_NAWS:		/* window size */
-	    case TELOPT_TSPEED:		/* terminal speed */
-	    case TELOPT_LFLOW:		/* local flow control */
-	    case TELOPT_TTYPE:		/* terminal type option */
-	    case TELOPT_SGA:		/* no big deal */
-		new_state_ok = 1;
-		break;
-
-	    case TELOPT_NEW_ENVIRON:	/* New environment variable option */
-#ifdef	OLD_ENVIRON
-		if (my_state_is_will(TELOPT_OLD_ENVIRON))
-			send_wont(TELOPT_OLD_ENVIRON, 1); /* turn off the old */
-		goto env_common;
-	    case TELOPT_OLD_ENVIRON:	/* Old environment variable option */
-		if (my_state_is_will(TELOPT_NEW_ENVIRON))
-			break;		/* Don't enable if new one is in use! */
-	    env_common:
-		telopt_environ = option;
-#endif
-		new_state_ok = 1;
-		break;
-
-
-	    case TELOPT_XDISPLOC:	/* X Display location */
-		if (env_getvalue("DISPLAY"))
-		    new_state_ok = 1;
-		break;
-
-	    case TELOPT_LINEMODE:
-#ifdef	KLUDGELINEMODE
-		kludgelinemode = 0;
-		send_do(TELOPT_SGA, 1);
-#endif
-		set_my_want_state_will(TELOPT_LINEMODE);
-		send_will(option, 0);
-		set_my_state_will(TELOPT_LINEMODE);
-		slc_init();
-		return;
-
-	    case TELOPT_ECHO:		/* We're never going to echo... */
-	    default:
-		break;
-	    }
-
-	    if (new_state_ok) {
-		set_my_want_state_will(option);
-		send_will(option, 0);
-		setconnmode(0);			/* Set new tty mode */
-	    } else {
-		will_wont_resp[option]++;
-		send_wont(option, 0);
-	    }
-	  } else {
-	    /*
-	     * Handle options that need more things done after the
-	     * other side has acknowledged the option.
-	     */
-	    switch (option) {
-	    case TELOPT_LINEMODE:
-#ifdef	KLUDGELINEMODE
-		kludgelinemode = 0;
-		send_do(TELOPT_SGA, 1);
-#endif
-		set_my_state_will(option);
-		slc_init();
-		send_do(TELOPT_SGA, 0);
-		return;
-	    }
-	  }
-	}
-	set_my_state_will(option);
-}
-
-static void
-dontoption(int option)
-{
-
-	if (will_wont_resp[option]) {
-	    --will_wont_resp[option];
-	    if (will_wont_resp[option] && my_state_is_wont(option))
-		--will_wont_resp[option];
-	}
-
-	if ((will_wont_resp[option] == 0) && my_want_state_is_will(option)) {
-	    switch (option) {
-	    case TELOPT_LINEMODE:
-		linemode = 0;	/* put us back to the default state */
-		break;
-#ifdef	OLD_ENVIRON
-	    case TELOPT_NEW_ENVIRON:
-		/*
-		 * The new environ option wasn't recognized, try
-		 * the old one.
-		 */
-		send_will(TELOPT_OLD_ENVIRON, 1);
-		telopt_environ = TELOPT_OLD_ENVIRON;
-		break;
-#endif
-	    }
-	    /* we always accept a DONT */
-	    set_my_want_state_wont(option);
-	    if (my_state_is_will(option))
-		send_wont(option, 0);
-	    setconnmode(0);			/* Set new tty mode */
-	}
-	set_my_state_wont(option);
-}
-
-/*
- * Given a buffer returned by tgetent(), this routine will turn
- * the pipe separated list of names in the buffer into an array
- * of pointers to null terminated names.  We toss out any bad,
- * duplicate, or verbose names (names with spaces).
- */
-
-static const char *name_unknown = "UNKNOWN";
-static const char *unknown[] = { NULL, NULL };
-
-static const char **
-mklist(char *buf, char *name)
-{
-	int n;
-	char c, *cp, **argvp, *cp2, **argv, **avt;
-
-	if (name) {
-		if (strlen(name) > 40) {
-			name = 0;
-			unknown[0] = name_unknown;
-		} else {
-			unknown[0] = name;
-			upcase(name);
-		}
-	} else
-		unknown[0] = name_unknown;
-	/*
-	 * Count up the number of names.
-	 */
-	for (n = 1, cp = buf; *cp && *cp != ':'; cp++) {
-		if (*cp == '|')
-			n++;
-	}
-	/*
-	 * Allocate an array to put the name pointers into
-	 */
-	argv = (char **)malloc((n+3)*sizeof(char *));
-	if (argv == 0)
-		return(unknown);
-
-	/*
-	 * Fill up the array of pointers to names.
-	 */
-	*argv = 0;
-	argvp = argv+1;
-	n = 0;
-	for (cp = cp2 = buf; (c = *cp);  cp++) {
-		if (c == '|' || c == ':') {
-			*cp++ = '\0';
-			/*
-			 * Skip entries that have spaces or are over 40
-			 * characters long.  If this is our environment
-			 * name, then put it up front.  Otherwise, as
-			 * long as this is not a duplicate name (case
-			 * insensitive) add it to the list.
-			 */
-			if (n || (cp - cp2 > 41))
-				;
-			else if (name && (strncasecmp(name, cp2, cp-cp2) == 0))
-				*argv = cp2;
-			else if (is_unique(cp2, argv+1, argvp))
-				*argvp++ = cp2;
-			if (c == ':')
-				break;
-			/*
-			 * Skip multiple delimiters. Reset cp2 to
-			 * the beginning of the next name. Reset n,
-			 * the flag for names with spaces.
-			 */
-			while ((c = *cp) == '|')
-				cp++;
-			cp2 = cp;
-			n = 0;
-		}
-		/*
-		 * Skip entries with spaces or non-ascii values.
-		 * Convert lower case letters to upper case.
-		 */
-		if ((c == ' ') || !isascii(c))
-			n = 1;
-		else if (islower(c))
-			*cp = toupper(c);
-	}
-
-	/*
-	 * Check for an old V6 2 character name.  If the second
-	 * name points to the beginning of the buffer, and is
-	 * only 2 characters long, move it to the end of the array.
-	 */
-	if ((argv[1] == buf) && (strlen(argv[1]) == 2)) {
-		--argvp;
-		for (avt = &argv[1]; avt < argvp; avt++)
-			*avt = *(avt+1);
-		*argvp++ = buf;
-	}
-
-	/*
-	 * Duplicate last name, for TTYPE option, and null
-	 * terminate the array.  If we didn't find a match on
-	 * our terminal name, put that name at the beginning.
-	 */
-	cp = *(argvp-1);
-	*argvp++ = cp;
-	*argvp = 0;
-
-	if (*argv == 0) {
-		if (name)
-			*argv = name;
-		else {
-			--argvp;
-			for (avt = argv; avt < argvp; avt++)
-				*avt = *(avt+1);
-		}
-	}
-	if (*argv)
-		return((const char **)argv);
-	else
-		return(unknown);
-}
-
-static int
-is_unique(char *name, char **as, char **ae)
-{
-	char **ap;
-	int n;
-
-	n = strlen(name) + 1;
-	for (ap = as; ap < ae; ap++)
-		if (strncasecmp(*ap, name, n) == 0)
-			return(0);
-	return (1);
-}
-
-#ifdef	TERMCAP
-char termbuf[1024];
-
-/*ARGSUSED*/
-static int
-setupterm(char *tname, int fd, int *errp)
-{
-	if (tgetent(termbuf, tname) == 1) {
-		termbuf[1023] = '\0';
-		if (errp)
-			*errp = 1;
-		return(0);
-	}
-	if (errp)
-		*errp = 0;
-	return(-1);
-}
-#else
-#define	termbuf	ttytype
-extern char ttytype[];
-#endif
-
-int resettermname = 1;
-
-static const char *
-gettermname(void)
-{
-	char *tname;
-	static const char **tnamep = 0;
-	static const char **next;
-	int err;
-
-	if (resettermname) {
-		resettermname = 0;
-		if (tnamep && tnamep != unknown)
-			free(tnamep);
-		if ((tname = env_getvalue("TERM")) &&
-				(setupterm(tname, 1, &err) == 0)) {
-			tnamep = mklist(termbuf, tname);
-		} else {
-			if (tname && (strlen(tname) <= 40)) {
-				unknown[0] = tname;
-				upcase(tname);
-			} else
-				unknown[0] = name_unknown;
-			tnamep = unknown;
-		}
-		next = tnamep;
-	}
-	if (*next == 0)
-		next = tnamep;
-	return(*next++);
-}
-/*
- * suboption()
- *
- *	Look at the sub-option buffer, and try to be helpful to the other
- * side.
- *
- *	Currently we recognize:
- *
- *		Terminal type, send request.
- *		Terminal speed (send request).
- *		Local flow control (is request).
- *		Linemode
- */
-
-static void
-suboption(void)
-{
-    unsigned char subchar;
-
-    printsub('<', subbuffer, SB_LEN()+2);
-    switch (subchar = SB_GET()) {
-    case TELOPT_TTYPE:
-	if (my_want_state_is_wont(TELOPT_TTYPE))
-	    return;
-	if (SB_EOF() || SB_GET() != TELQUAL_SEND) {
-	    return;
-	} else {
-	    const char *name;
-	    unsigned char temp[50];
-	    int len;
-
-	    name = gettermname();
-	    len = strlen(name) + 4 + 2;
-	    if (len < NETROOM()) {
-		sprintf(temp, "%c%c%c%c%s%c%c", IAC, SB, TELOPT_TTYPE,
-				TELQUAL_IS, name, IAC, SE);
-		ring_supply_data(&netoring, temp, len);
-		printsub('>', &temp[2], len-2);
-	    } else {
-		ExitString("No room in buffer for terminal type.\n", 1);
-		/*NOTREACHED*/
-	    }
-	}
-	break;
-    case TELOPT_TSPEED:
-	if (my_want_state_is_wont(TELOPT_TSPEED))
-	    return;
-	if (SB_EOF())
-	    return;
-	if (SB_GET() == TELQUAL_SEND) {
-	    long ospeed, ispeed;
-	    unsigned char temp[50];
-	    int len;
-
-	    TerminalSpeeds(&ispeed, &ospeed);
-
-	    sprintf((char *)temp, "%c%c%c%c%ld,%ld%c%c", IAC, SB, TELOPT_TSPEED,
-		    TELQUAL_IS, ospeed, ispeed, IAC, SE);
-	    len = strlen((char *)temp+4) + 4;	/* temp[3] is 0 ... */
-
-	    if (len < NETROOM()) {
-		ring_supply_data(&netoring, temp, len);
-		printsub('>', temp+2, len - 2);
-	    }
-/*@*/	    else printf("lm_will: not enough room in buffer\n");
-	}
-	break;
-    case TELOPT_LFLOW:
-	if (my_want_state_is_wont(TELOPT_LFLOW))
-	    return;
-	if (SB_EOF())
-	    return;
-	switch(SB_GET()) {
-	case LFLOW_RESTART_ANY:
-	    restartany = 1;
-	    break;
-	case LFLOW_RESTART_XON:
-	    restartany = 0;
-	    break;
-	case LFLOW_ON:
-	    localflow = 1;
-	    break;
-	case LFLOW_OFF:
-	    localflow = 0;
-	    break;
-	default:
-	    return;
-	}
-	setcommandmode();
-	setconnmode(0);
-	break;
-
-    case TELOPT_LINEMODE:
-	if (my_want_state_is_wont(TELOPT_LINEMODE))
-	    return;
-	if (SB_EOF())
-	    return;
-	switch (SB_GET()) {
-	case WILL:
-	    lm_will(subpointer, SB_LEN());
-	    break;
-	case WONT:
-	    lm_wont(subpointer, SB_LEN());
-	    break;
-	case DO:
-	    lm_do(subpointer, SB_LEN());
-	    break;
-	case DONT:
-	    lm_dont(subpointer, SB_LEN());
-	    break;
-	case LM_SLC:
-	    slc(subpointer, SB_LEN());
-	    break;
-	case LM_MODE:
-	    lm_mode(subpointer, SB_LEN(), 0);
-	    break;
-	default:
-	    break;
-	}
-	break;
-
-#ifdef	OLD_ENVIRON
-    case TELOPT_OLD_ENVIRON:
-#endif
-    case TELOPT_NEW_ENVIRON:
-	if (SB_EOF())
-	    return;
-	switch(SB_PEEK()) {
-	case TELQUAL_IS:
-	case TELQUAL_INFO:
-	    if (my_want_state_is_dont(subchar))
-		return;
-	    break;
-	case TELQUAL_SEND:
-	    if (my_want_state_is_wont(subchar)) {
-		return;
-	    }
-	    break;
-	default:
-	    return;
-	}
-	env_opt(subpointer, SB_LEN());
-	break;
-
-    case TELOPT_XDISPLOC:
-	if (my_want_state_is_wont(TELOPT_XDISPLOC))
-	    return;
-	if (SB_EOF())
-	    return;
-	if (SB_GET() == TELQUAL_SEND) {
-	    unsigned char temp[50], *dp;
-	    int len;
-
-	    if ((dp = env_getvalue("DISPLAY")) == NULL ||
-		strlen(dp) > sizeof(temp) - 7) {
-		/*
-		 * Something happened, we no longer have a DISPLAY
-		 * variable.  Or it is too long.  So, turn off the option.
-		 */
-		send_wont(TELOPT_XDISPLOC, 1);
-		break;
-	    }
-	    snprintf(temp, sizeof(temp), "%c%c%c%c%s%c%c", IAC, SB,
-		    TELOPT_XDISPLOC, TELQUAL_IS, dp, IAC, SE);
-	    len = strlen((char *)temp+4) + 4;	/* temp[3] is 0 ... */
-
-	    if (len < NETROOM()) {
-		ring_supply_data(&netoring, temp, len);
-		printsub('>', temp+2, len - 2);
-	    }
-/*@*/	    else printf("lm_will: not enough room in buffer\n");
-	}
-	break;
-
-    default:
-	break;
-    }
-}
-
-static unsigned char str_lm[] = { IAC, SB, TELOPT_LINEMODE, 0, 0, IAC, SE };
-
-void
-lm_will(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_will: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:	/* We shouldn't ever get this... */
-    default:
-	str_lm[3] = DONT;
-	str_lm[4] = cmd[0];
-	if (NETROOM() > (int)sizeof(str_lm)) {
-	    ring_supply_data(&netoring, str_lm, sizeof(str_lm));
-	    printsub('>', &str_lm[2], sizeof(str_lm)-2);
-	}
-/*@*/	else printf("lm_will: not enough room in buffer\n");
-	break;
-    }
-}
-
-void
-lm_wont(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_wont: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:	/* We shouldn't ever get this... */
-    default:
-	/* We are always DONT, so don't respond */
-	return;
-    }
-}
-
-void
-lm_do(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_do: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:
-    default:
-	str_lm[3] = WONT;
-	str_lm[4] = cmd[0];
-	if (NETROOM() > (int)sizeof(str_lm)) {
-	    ring_supply_data(&netoring, str_lm, sizeof(str_lm));
-	    printsub('>', &str_lm[2], sizeof(str_lm)-2);
-	}
-/*@*/	else printf("lm_do: not enough room in buffer\n");
-	break;
-    }
-}
-
-void
-lm_dont(unsigned char *cmd, int len)
-{
-    if (len < 1) {
-/*@*/	printf("lm_dont: no command!!!\n");	/* Should not happen... */
-	return;
-    }
-    switch(cmd[0]) {
-    case LM_FORWARDMASK:
-    default:
-	/* we are always WONT, so don't respond */
-	break;
-    }
-}
-
-static unsigned char str_lm_mode[] = {
-	IAC, SB, TELOPT_LINEMODE, LM_MODE, 0, IAC, SE
-};
-
-void
-lm_mode(unsigned char *cmd, int len, int init)
-{
-	if (len != 1)
-		return;
-	if ((linemode&MODE_MASK&~MODE_ACK) == *cmd)
-		return;
-	if (*cmd&MODE_ACK)
-		return;
-	linemode = *cmd&(MODE_MASK&~MODE_ACK);
-	str_lm_mode[4] = linemode;
-	if (!init)
-	    str_lm_mode[4] |= MODE_ACK;
-	if (NETROOM() > (int)sizeof(str_lm_mode)) {
-	    ring_supply_data(&netoring, str_lm_mode, sizeof(str_lm_mode));
-	    printsub('>', &str_lm_mode[2], sizeof(str_lm_mode)-2);
-	}
-/*@*/	else printf("lm_mode: not enough room in buffer\n");
-	setconnmode(0);	/* set changed mode */
-}
-
-
-
-/*
- * slc()
- * Handle special character suboption of LINEMODE.
- */
-
-struct spc {
-	cc_t val;
-	cc_t *valp;
-	char flags;	/* Current flags & level */
-	char mylevel;	/* Maximum level & flags */
-} spc_data[NSLC+1];
-
-#define SLC_IMPORT	0
-#define	SLC_EXPORT	1
-#define SLC_RVALUE	2
-static int slc_mode = SLC_EXPORT;
-
-void
-slc_init(void)
-{
-	struct spc *spcp;
-
-	localchars = 1;
-	for (spcp = spc_data; spcp < &spc_data[NSLC+1]; spcp++) {
-		spcp->val = 0;
-		spcp->valp = 0;
-		spcp->flags = spcp->mylevel = SLC_NOSUPPORT;
-	}
-
-#define	initfunc(func, flags) { \
-					spcp = &spc_data[func]; \
-					if ((spcp->valp = tcval(func))) { \
-					    spcp->val = *spcp->valp; \
-					    spcp->mylevel = SLC_VARIABLE|flags; \
-					} else { \
-					    spcp->val = 0; \
-					    spcp->mylevel = SLC_DEFAULT; \
-					} \
-				    }
-
-	initfunc(SLC_SYNCH, 0);
-	/* No BRK */
-	initfunc(SLC_AO, 0);
-	initfunc(SLC_AYT, 0);
-	/* No EOR */
-	initfunc(SLC_ABORT, SLC_FLUSHIN|SLC_FLUSHOUT);
-	initfunc(SLC_EOF, 0);
-#ifndef	SYSV_TERMIO
-	initfunc(SLC_SUSP, SLC_FLUSHIN);
-#endif
-	initfunc(SLC_EC, 0);
-	initfunc(SLC_EL, 0);
-#ifndef	SYSV_TERMIO
-	initfunc(SLC_EW, 0);
-	initfunc(SLC_RP, 0);
-	initfunc(SLC_LNEXT, 0);
-#endif
-	initfunc(SLC_XON, 0);
-	initfunc(SLC_XOFF, 0);
-#ifdef	SYSV_TERMIO
-	spc_data[SLC_XON].mylevel = SLC_CANTCHANGE;
-	spc_data[SLC_XOFF].mylevel = SLC_CANTCHANGE;
-#endif
-	initfunc(SLC_FORW1, 0);
-#ifdef	USE_TERMIO
-	initfunc(SLC_FORW2, 0);
-	/* No FORW2 */
-#endif
-
-	initfunc(SLC_IP, SLC_FLUSHIN|SLC_FLUSHOUT);
-#undef	initfunc
-
-	if (slc_mode == SLC_EXPORT)
-		slc_export();
-	else
-		slc_import(1);
-
-}
-
-void
-slcstate(void)
-{
-    printf("Special characters are %s values\n",
-		slc_mode == SLC_IMPORT ? "remote default" :
-		slc_mode == SLC_EXPORT ? "local" :
-					 "remote");
-}
-
-void
-slc_mode_export(void)
-{
-    slc_mode = SLC_EXPORT;
-    if (my_state_is_will(TELOPT_LINEMODE))
-	slc_export();
-}
-
-void
-slc_mode_import(int def)
-{
-    slc_mode = def ? SLC_IMPORT : SLC_RVALUE;
-    if (my_state_is_will(TELOPT_LINEMODE))
-	slc_import(def);
-}
-
-unsigned char slc_import_val[] = {
-	IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_VARIABLE, 0, IAC, SE
-};
-unsigned char slc_import_def[] = {
-	IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_DEFAULT, 0, IAC, SE
-};
-
-void
-slc_import(int def)
-{
-    if (NETROOM() > (int)sizeof(slc_import_val)) {
-	if (def) {
-	    ring_supply_data(&netoring, slc_import_def, sizeof(slc_import_def));
-	    printsub('>', &slc_import_def[2], sizeof(slc_import_def)-2);
-	} else {
-	    ring_supply_data(&netoring, slc_import_val, sizeof(slc_import_val));
-	    printsub('>', &slc_import_val[2], sizeof(slc_import_val)-2);
-	}
-    }
-/*@*/ else printf("slc_import: not enough room\n");
-}
-
-void
-slc_export(void)
-{
-    struct spc *spcp;
-
-    TerminalDefaultChars();
-
-    slc_start_reply();
-    for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
-	if (spcp->mylevel != SLC_NOSUPPORT) {
-	    if (spcp->val == (cc_t)(_POSIX_VDISABLE))
-		spcp->flags = SLC_NOSUPPORT;
-	    else
-		spcp->flags = spcp->mylevel;
-	    if (spcp->valp)
-		spcp->val = *spcp->valp;
-	    slc_add_reply(spcp - spc_data, spcp->flags, spcp->val);
-	}
-    }
-    slc_end_reply();
-    (void)slc_update();
-    setconnmode(1);	/* Make sure the character values are set */
-}
-
-void
-slc(unsigned char *cp, int len)
-{
-	struct spc *spcp;
-	int func,level;
-
-	slc_start_reply();
-
-	for (; len >= 3; len -=3, cp +=3) {
-
-		func = cp[SLC_FUNC];
-
-		if (func == 0) {
-			/*
-			 * Client side: always ignore 0 function.
-			 */
-			continue;
-		}
-		if (func > NSLC) {
-			if ((cp[SLC_FLAGS] & SLC_LEVELBITS) != SLC_NOSUPPORT)
-				slc_add_reply(func, SLC_NOSUPPORT, 0);
-			continue;
-		}
-
-		spcp = &spc_data[func];
-
-		level = cp[SLC_FLAGS]&(SLC_LEVELBITS|SLC_ACK);
-
-		if ((cp[SLC_VALUE] == (unsigned char)spcp->val) &&
-		    ((level&SLC_LEVELBITS) == (spcp->flags&SLC_LEVELBITS))) {
-			continue;
-		}
-
-		if (level == (SLC_DEFAULT|SLC_ACK)) {
-			/*
-			 * This is an error condition, the SLC_ACK
-			 * bit should never be set for the SLC_DEFAULT
-			 * level.  Our best guess to recover is to
-			 * ignore the SLC_ACK bit.
-			 */
-			cp[SLC_FLAGS] &= ~SLC_ACK;
-		}
-
-		if (level == ((spcp->flags&SLC_LEVELBITS)|SLC_ACK)) {
-			spcp->val = (cc_t)cp[SLC_VALUE];
-			spcp->flags = cp[SLC_FLAGS];	/* include SLC_ACK */
-			continue;
-		}
-
-		level &= ~SLC_ACK;
-
-		if (level <= (spcp->mylevel&SLC_LEVELBITS)) {
-			spcp->flags = cp[SLC_FLAGS]|SLC_ACK;
-			spcp->val = (cc_t)cp[SLC_VALUE];
-		}
-		if (level == SLC_DEFAULT) {
-			if ((spcp->mylevel&SLC_LEVELBITS) != SLC_DEFAULT)
-				spcp->flags = spcp->mylevel;
-			else
-				spcp->flags = SLC_NOSUPPORT;
-		}
-		slc_add_reply(func, spcp->flags, spcp->val);
-	}
-	slc_end_reply();
-	if (slc_update())
-		setconnmode(1);	/* set the  new character values */
-}
-
-void
-slc_check(void)
-{
-    struct spc *spcp;
-
-    slc_start_reply();
-    for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
-	if (spcp->valp && spcp->val != *spcp->valp) {
-	    spcp->val = *spcp->valp;
-	    if (spcp->val == (cc_t)(_POSIX_VDISABLE))
-		spcp->flags = SLC_NOSUPPORT;
-	    else
-		spcp->flags = spcp->mylevel;
-	    slc_add_reply(spcp - spc_data, spcp->flags, spcp->val);
-	}
-    }
-    slc_end_reply();
-    setconnmode(1);
-}
-
-unsigned char slc_reply[128];
-unsigned char *slc_replyp;
-
-void
-slc_start_reply(void)
-{
-	slc_replyp = slc_reply;
-	*slc_replyp++ = IAC;
-	*slc_replyp++ = SB;
-	*slc_replyp++ = TELOPT_LINEMODE;
-	*slc_replyp++ = LM_SLC;
-}
-
-void
-slc_add_reply(unsigned char func, unsigned char flags, cc_t value)
-{
-	if ((*slc_replyp++ = func) == IAC)
-		*slc_replyp++ = IAC;
-	if ((*slc_replyp++ = flags) == IAC)
-		*slc_replyp++ = IAC;
-	if ((*slc_replyp++ = (unsigned char)value) == IAC)
-		*slc_replyp++ = IAC;
-}
-
-void
-slc_end_reply(void)
-{
-    int len;
-
-    *slc_replyp++ = IAC;
-    *slc_replyp++ = SE;
-    len = slc_replyp - slc_reply;
-    if (len <= 6)
-	return;
-    if (NETROOM() > len) {
-	ring_supply_data(&netoring, slc_reply, slc_replyp - slc_reply);
-	printsub('>', &slc_reply[2], slc_replyp - slc_reply - 2);
-    }
-/*@*/else printf("slc_end_reply: not enough room\n");
-}
-
-int
-slc_update(void)
-{
-	struct spc *spcp;
-	int need_update = 0;
-
-	for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
-		if (!(spcp->flags&SLC_ACK))
-			continue;
-		spcp->flags &= ~SLC_ACK;
-		if (spcp->valp && (*spcp->valp != spcp->val)) {
-			*spcp->valp = spcp->val;
-			need_update = 1;
-		}
-	}
-	return(need_update);
-}
-
-#ifdef	OLD_ENVIRON
-# ifdef	ENV_HACK
-/*
- * Earlier version of telnet/telnetd from the BSD code had
- * the definitions of VALUE and VAR reversed.  To ensure
- * maximum interoperability, we assume that the server is
- * an older BSD server, until proven otherwise.  The newer
- * BSD servers should be able to handle either definition,
- * so it is better to use the wrong values if we don't
- * know what type of server it is.
- */
-int env_auto = 1;
-int old_env_var = OLD_ENV_VAR;
-int old_env_value = OLD_ENV_VALUE;
-# else
-#  define old_env_var OLD_ENV_VAR
-#  define old_env_value OLD_ENV_VALUE
-# endif
-#endif
-
-void
-env_opt(unsigned char *buf, int len)
-{
-	unsigned char *ep = 0, *epc = 0;
-	int i;
-
-	switch(buf[0]&0xff) {
-	case TELQUAL_SEND:
-		env_opt_start();
-		if (len == 1) {
-			env_opt_add(NULL);
-		} else for (i = 1; i < len; i++) {
-			switch (buf[i]&0xff) {
-#ifdef	OLD_ENVIRON
-			case OLD_ENV_VAR:
-# ifdef	ENV_HACK
-				if (telopt_environ == TELOPT_OLD_ENVIRON
-				    && env_auto) {
-					/* Server has the same definitions */
-					old_env_var = OLD_ENV_VAR;
-					old_env_value = OLD_ENV_VALUE;
-				}
-				/* FALLTHROUGH */
-# endif
-			case OLD_ENV_VALUE:
-				/*
-				 * Although OLD_ENV_VALUE is not legal, we will
-				 * still recognize it, just in case it is an
-				 * old server that has VAR & VALUE mixed up...
-				 */
-				/* FALLTHROUGH */
-#else
-			case NEW_ENV_VAR:
-#endif
-			case ENV_USERVAR:
-				if (ep) {
-					*epc = 0;
-					env_opt_add(ep);
-				}
-				ep = epc = &buf[i+1];
-				break;
-			case ENV_ESC:
-				i++;
-				/*FALLTHROUGH*/
-			default:
-				if (epc)
-					*epc++ = buf[i];
-				break;
-			}
-		}
-		if (ep) {
-			*epc = 0;
-			env_opt_add(ep);
-		}
-		env_opt_end(1);
-		break;
-
-	case TELQUAL_IS:
-	case TELQUAL_INFO:
-		/* Ignore for now.  We shouldn't get it anyway. */
-		break;
-
-	default:
-		break;
-	}
-}
-
-#define	OPT_REPLY_SIZE	256
-unsigned char *opt_reply;
-unsigned char *opt_replyp;
-unsigned char *opt_replyend;
-
-void
-env_opt_start(void)
-{
-	if (opt_reply)
-		opt_reply = (unsigned char *)realloc(opt_reply, OPT_REPLY_SIZE);
-	else
-		opt_reply = (unsigned char *)malloc(OPT_REPLY_SIZE);
-	if (opt_reply == NULL) {
-/*@*/		printf("env_opt_start: malloc()/realloc() failed!!!\n");
-		opt_reply = opt_replyp = opt_replyend = NULL;
-		return;
-	}
-	opt_replyp = opt_reply;
-	opt_replyend = opt_reply + OPT_REPLY_SIZE;
-	*opt_replyp++ = IAC;
-	*opt_replyp++ = SB;
-	*opt_replyp++ = telopt_environ;
-	*opt_replyp++ = TELQUAL_IS;
-}
-
-void
-env_opt_start_info(void)
-{
-	env_opt_start();
-	if (opt_replyp)
-	    opt_replyp[-1] = TELQUAL_INFO;
-}
-
-void
-env_opt_add(unsigned char *ep)
-{
-	unsigned char *vp, c;
-
-	if (opt_reply == NULL)		/*XXX*/
-		return;			/*XXX*/
-
-	if (ep == NULL || *ep == '\0') {
-		/* Send user defined variables first. */
-		env_default(1, 0);
-		while ((ep = env_default(0, 0)))
-			env_opt_add(ep);
-
-		/* Now add the list of well know variables.  */
-		env_default(1, 1);
-		while ((ep = env_default(0, 1)))
-			env_opt_add(ep);
-		return;
-	}
-	vp = env_getvalue(ep);
-	if (opt_replyp + (vp ? strlen((char *)vp) : 0) +
-				strlen((char *)ep) + 6 > opt_replyend)
-	{
-		int len;
-		opt_replyend += OPT_REPLY_SIZE;
-		len = opt_replyend - opt_reply;
-		opt_reply = (unsigned char *)realloc(opt_reply, len);
-		if (opt_reply == NULL) {
-/*@*/			printf("env_opt_add: realloc() failed!!!\n");
-			opt_reply = opt_replyp = opt_replyend = NULL;
-			return;
-		}
-		opt_replyp = opt_reply + len - (opt_replyend - opt_replyp);
-		opt_replyend = opt_reply + len;
-	}
-	if (opt_welldefined(ep))
-#ifdef	OLD_ENVIRON
-		if (telopt_environ == TELOPT_OLD_ENVIRON)
-			*opt_replyp++ = old_env_var;
-		else
-#endif
-			*opt_replyp++ = NEW_ENV_VAR;
-	else
-		*opt_replyp++ = ENV_USERVAR;
-	for (;;) {
-		while ((c = *ep++)) {
-			switch(c&0xff) {
-			case IAC:
-				*opt_replyp++ = IAC;
-				break;
-			case NEW_ENV_VAR:
-			case NEW_ENV_VALUE:
-			case ENV_ESC:
-			case ENV_USERVAR:
-				*opt_replyp++ = ENV_ESC;
-				break;
-			}
-			*opt_replyp++ = c;
-		}
-		if ((ep = vp)) {
-#ifdef	OLD_ENVIRON
-			if (telopt_environ == TELOPT_OLD_ENVIRON)
-				*opt_replyp++ = old_env_value;
-			else
-#endif
-				*opt_replyp++ = NEW_ENV_VALUE;
-			vp = NULL;
-		} else
-			break;
-	}
-}
-
-int
-opt_welldefined(const char *ep)
-{
-	if ((strcmp(ep, "USER") == 0) ||
-	    (strcmp(ep, "DISPLAY") == 0) ||
-	    (strcmp(ep, "PRINTER") == 0) ||
-	    (strcmp(ep, "SYSTEMTYPE") == 0) ||
-	    (strcmp(ep, "JOB") == 0) ||
-	    (strcmp(ep, "ACCT") == 0))
-		return(1);
-	return(0);
-}
-
-void
-env_opt_end(int emptyok)
-{
-	int len;
-
-	len = opt_replyp - opt_reply + 2;
-	if (emptyok || len > 6) {
-		*opt_replyp++ = IAC;
-		*opt_replyp++ = SE;
-		if (NETROOM() > len) {
-			ring_supply_data(&netoring, opt_reply, len);
-			printsub('>', &opt_reply[2], len - 2);
-		}
-/*@*/		else printf("slc_end_reply: not enough room\n");
-	}
-	if (opt_reply) {
-		free(opt_reply);
-		opt_reply = opt_replyp = opt_replyend = NULL;
-	}
-}
-
-
-
-int
-telrcv(void)
-{
-    int c;
-    int scc;
-    unsigned char *sbp;
-    int count;
-    int returnValue = 0;
-
-    scc = 0;
-    count = 0;
-    while (TTYROOM() > 2) {
-	if (scc == 0) {
-	    if (count) {
-		ring_consumed(&netiring, count);
-		returnValue = 1;
-		count = 0;
-	    }
-	    sbp = netiring.consume;
-	    scc = ring_full_consecutive(&netiring);
-	    if (scc == 0) {
-		/* No more data coming in */
-		break;
-	    }
-	}
-
-	c = *sbp++ & 0xff, scc--; count++;
-
-	switch (telrcv_state) {
-
-	case TS_CR:
-	    telrcv_state = TS_DATA;
-	    if (c == '\0') {
-		break;	/* Ignore \0 after CR */
-	    }
-	    else if ((c == '\n') && my_want_state_is_dont(TELOPT_ECHO) && !crmod) {
-		TTYADD(c);
-		break;
-	    }
-	    /* FALLTHROUGH */
-
-	case TS_DATA:
-	    if (c == IAC) {
-		telrcv_state = TS_IAC;
-		break;
-	    }
-		    /*
-		     * The 'crmod' hack (see following) is needed
-		     * since we can't * set CRMOD on output only.
-		     * Machines like MULTICS like to send \r without
-		     * \n; since we must turn off CRMOD to get proper
-		     * input, the mapping is done here (sigh).
-		     */
-	    if ((c == '\r') && my_want_state_is_dont(TELOPT_BINARY)) {
-		if (scc > 0) {
-		    c = *sbp&0xff;
-		    if (c == 0) {
-			sbp++, scc--; count++;
-			/* a "true" CR */
-			TTYADD('\r');
-		    } else if (my_want_state_is_dont(TELOPT_ECHO) &&
-					(c == '\n')) {
-			sbp++, scc--; count++;
-			TTYADD('\n');
-		    } else {
-
-			TTYADD('\r');
-			if (crmod) {
-				TTYADD('\n');
-			}
-		    }
-		} else {
-		    telrcv_state = TS_CR;
-		    TTYADD('\r');
-		    if (crmod) {
-			    TTYADD('\n');
-		    }
-		}
-	    } else {
-		TTYADD(c);
-	    }
-	    continue;
-
-	case TS_IAC:
-process_iac:
-	    switch (c) {
-
-	    case WILL:
-		telrcv_state = TS_WILL;
-		continue;
-
-	    case WONT:
-		telrcv_state = TS_WONT;
-		continue;
-
-	    case DO:
-		telrcv_state = TS_DO;
-		continue;
-
-	    case DONT:
-		telrcv_state = TS_DONT;
-		continue;
-
-	    case DM:
-		    /*
-		     * We may have missed an urgent notification,
-		     * so make sure we flush whatever is in the
-		     * buffer currently.
-		     */
-		printoption("RCVD", IAC, DM);
-		SYNCHing = 1;
-		(void) ttyflush(1);
-		SYNCHing = stilloob();
-		settimer(gotDM);
-		break;
-
-	    case SB:
-		SB_CLEAR();
-		telrcv_state = TS_SB;
-		continue;
-
-	    case IAC:
-		TTYADD(IAC);
-		break;
-
-	    case NOP:
-	    case GA:
-	    default:
-		printoption("RCVD", IAC, c);
-		break;
-	    }
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_WILL:
-	    printoption("RCVD", WILL, c);
-	    willoption(c);
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_WONT:
-	    printoption("RCVD", WONT, c);
-	    wontoption(c);
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_DO:
-	    printoption("RCVD", DO, c);
-	    dooption(c);
-	    if (c == TELOPT_NAWS) {
-		sendnaws();
-	    } else if (c == TELOPT_LFLOW) {
-		localflow = 1;
-		setcommandmode();
-		setconnmode(0);
-	    }
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_DONT:
-	    printoption("RCVD", DONT, c);
-	    dontoption(c);
-	    flushline = 1;
-	    setconnmode(0);	/* set new tty mode (maybe) */
-	    telrcv_state = TS_DATA;
-	    continue;
-
-	case TS_SB:
-	    if (c == IAC) {
-		telrcv_state = TS_SE;
-	    } else {
-		SB_ACCUM(c);
-	    }
-	    continue;
-
-	case TS_SE:
-	    if (c != SE) {
-		if (c != IAC) {
-		    /*
-		     * This is an error.  We only expect to get
-		     * "IAC IAC" or "IAC SE".  Several things may
-		     * have happend.  An IAC was not doubled, the
-		     * IAC SE was left off, or another option got
-		     * inserted into the suboption are all possibilities.
-		     * If we assume that the IAC was not doubled,
-		     * and really the IAC SE was left off, we could
-		     * get into an infinate loop here.  So, instead,
-		     * we terminate the suboption, and process the
-		     * partial suboption if we can.
-		     */
-		    SB_ACCUM(IAC);
-		    SB_ACCUM(c);
-		    subpointer -= 2;
-		    SB_TERM();
-
-		    printoption("In SUBOPTION processing, RCVD", IAC, c);
-		    suboption();	/* handle sub-option */
-		    telrcv_state = TS_IAC;
-		    goto process_iac;
-		}
-		SB_ACCUM(c);
-		telrcv_state = TS_SB;
-	    } else {
-		SB_ACCUM(IAC);
-		SB_ACCUM(SE);
-		subpointer -= 2;
-		SB_TERM();
-		suboption();	/* handle sub-option */
-		telrcv_state = TS_DATA;
-	    }
-	}
-    }
-    if (count)
-	ring_consumed(&netiring, count);
-    return returnValue||count;
-}
-
-static int bol = 1, local = 0;
-
-int
-rlogin_susp(void)
-{
-    if (local) {
-	local = 0;
-	bol = 1;
-	command(0, "z\n", 2);
-	return(1);
-    }
-    return(0);
-}
-
-static int
-telsnd(void)
-{
-    int tcc;
-    int count;
-    int returnValue = 0;
-    unsigned char *tbp;
-
-    tcc = 0;
-    count = 0;
-    while (NETROOM() > 2) {
-	int sc;
-	int c;
-
-	if (tcc == 0) {
-	    if (count) {
-		ring_consumed(&ttyiring, count);
-		returnValue = 1;
-		count = 0;
-	    }
-	    tbp = ttyiring.consume;
-	    tcc = ring_full_consecutive(&ttyiring);
-	    if (tcc == 0) {
-		break;
-	    }
-	}
-	c = *tbp++ & 0xff, sc = strip(c), tcc--; count++;
-	if (rlogin != _POSIX_VDISABLE) {
-		if (bol) {
-			bol = 0;
-			if (sc == rlogin) {
-				local = 1;
-				continue;
-			}
-		} else if (local) {
-			local = 0;
-			if (sc == '.' || c == termEofChar) {
-				bol = 1;
-				command(0, "close\n", 6);
-				continue;
-			}
-			if (sc == termSuspChar) {
-				bol = 1;
-				command(0, "z\n", 2);
-				continue;
-			}
-			if (sc == escape) {
-				command(0, tbp, tcc);
-				bol = 1;
-				count += tcc;
-				tcc = 0;
-				flushline = 1;
-				break;
-			}
-			if (sc != rlogin) {
-				++tcc;
-				--tbp;
-				--count;
-				c = sc = rlogin;
-			}
-		}
-		if ((sc == '\n') || (sc == '\r'))
-			bol = 1;
-	} else if (escape != _POSIX_VDISABLE && sc == escape) {
-	    /*
-	     * Double escape is a pass through of a single escape character.
-	     */
-	    if (tcc && strip(*tbp) == escape) {
-		tbp++;
-		tcc--;
-		count++;
-		bol = 0;
-	    } else {
-		command(0, (char *)tbp, tcc);
-		bol = 1;
-		count += tcc;
-		tcc = 0;
-		flushline = 1;
-		break;
-	    }
-	} else
-	    bol = 0;
-#ifdef	KLUDGELINEMODE
-	if (kludgelinemode && (globalmode&MODE_EDIT) && (sc == echoc)) {
-	    if (tcc > 0 && strip(*tbp) == echoc) {
-		tcc--; tbp++; count++;
-	    } else {
-		dontlecho = !dontlecho;
-		settimer(echotoggle);
-		setconnmode(0);
-		flushline = 1;
-		break;
-	    }
-	}
-#endif
-	if (MODE_LOCAL_CHARS(globalmode)) {
-	    if (TerminalSpecialChars(sc) == 0) {
-		bol = 1;
-		break;
-	    }
-	}
-	if (my_want_state_is_wont(TELOPT_BINARY)) {
-	    switch (c) {
-	    case '\n':
-		    /*
-		     * If we are in CRMOD mode (\r ==> \n)
-		     * on our local machine, then probably
-		     * a newline (unix) is CRLF (TELNET).
-		     */
-		if (MODE_LOCAL_CHARS(globalmode)) {
-		    NETADD('\r');
-		}
-		NETADD('\n');
-		bol = flushline = 1;
-		break;
-	    case '\r':
-		if (!crlf) {
-		    NET2ADD('\r', '\0');
-		} else {
-		    NET2ADD('\r', '\n');
-		}
-		bol = flushline = 1;
-		break;
-	    case IAC:
-		NET2ADD(IAC, IAC);
-		break;
-	    default:
-		NETADD(c);
-		break;
-	    }
-	} else if (c == IAC) {
-	    NET2ADD(IAC, IAC);
-	} else {
-	    NETADD(c);
-	}
-    }
-    if (count)
-	ring_consumed(&ttyiring, count);
-    return returnValue||count;		/* Non-zero if we did anything */
-}
-
-/*
- * Scheduler()
- *
- * Try to do something.
- *
- * If we do something useful, return 1; else return 0.
- *
- */
-
-static int
-Scheduler(int block)
-{
-		/* One wants to be a bit careful about setting returnValue
-		 * to one, since a one implies we did some useful work,
-		 * and therefore probably won't be called to block next
-		 */
-    int returnValue;
-    int netin, netout, netex, ttyin, ttyout;
-
-    /* Decide which rings should be processed */
-
-    netout = ring_full_count(&netoring) &&
-	    (flushline ||
-		(my_want_state_is_wont(TELOPT_LINEMODE)
-#ifdef	KLUDGELINEMODE
-			&& (!kludgelinemode || my_want_state_is_do(TELOPT_SGA))
-#endif
-		) ||
-			my_want_state_is_will(TELOPT_BINARY));
-    ttyout = ring_full_count(&ttyoring);
-
-    ttyin = ring_empty_count(&ttyiring) && (clienteof == 0);
-
-    netin = !ISend && ring_empty_count(&netiring);
-
-    netex = !SYNCHing;
-
-    /* Call to system code to process rings */
-
-    returnValue = process_rings(netin, netout, netex, ttyin, ttyout, !block);
-
-    /* Now, look at the input rings, looking for work to do. */
-
-    if (ring_full_count(&ttyiring)) {
-	    returnValue |= telsnd();
-    }
-
-    if (ring_full_count(&netiring)) {
-	returnValue |= telrcv();
-    }
-    return returnValue;
-}
-
-#define __unusedhere __unused
-/*
- * Select from tty and network...
- */
-void
-telnet(char *user __unusedhere)
-{
-    sys_telnet_init();
-
-    if (telnetport) {
-	send_do(TELOPT_SGA, 1);
-	send_will(TELOPT_TTYPE, 1);
-	send_will(TELOPT_NAWS, 1);
-	send_will(TELOPT_TSPEED, 1);
-	send_will(TELOPT_LFLOW, 1);
-	send_will(TELOPT_LINEMODE, 1);
-	send_will(TELOPT_NEW_ENVIRON, 1);
-	send_do(TELOPT_STATUS, 1);
-	if (env_getvalue("DISPLAY"))
-	    send_will(TELOPT_XDISPLOC, 1);
-	if (eight)
-	    tel_enter_binary(eight);
-    }
-
-    for (;;) {
-	int schedValue;
-
-	while ((schedValue = Scheduler(0)) != 0) {
-	    if (schedValue == -1) {
-		setcommandmode();
-		return;
-	    }
-	}
-
-	if (Scheduler(1) == -1) {
-	    setcommandmode();
-	    return;
-	}
-    }
-}
-
-#if	0	/* XXX - this not being in is a bug */
-/*
- * nextitem()
- *
- *	Return the address of the next "item" in the TELNET data
- * stream.  This will be the address of the next character if
- * the current address is a user data character, or it will
- * be the address of the character following the TELNET command
- * if the current address is a TELNET IAC ("I Am a Command")
- * character.
- */
-
-static char *
-nextitem(char *current)
-{
-    if ((*current&0xff) != IAC) {
-	return current+1;
-    }
-    switch (*(current+1)&0xff) {
-    case DO:
-    case DONT:
-    case WILL:
-    case WONT:
-	return current+3;
-    case SB:		/* loop forever looking for the SE */
-	{
-	    char *look = current+2;
-
-	    for (;;) {
-		if ((*look++&0xff) == IAC) {
-		    if ((*look++&0xff) == SE) {
-			return look;
-		    }
-		}
-	    }
-	}
-    default:
-	return current+2;
-    }
-}
-#endif	/* 0 */
-
-/*
- * netclear()
- *
- *	We are about to do a TELNET SYNCH operation.  Clear
- * the path to the network.
- *
- *	Things are a bit tricky since we may have sent the first
- * byte or so of a previous TELNET command into the network.
- * So, we have to scan the network buffer from the beginning
- * until we are up to where we want to be.
- *
- *	A side effect of what we do, just to keep things
- * simple, is to clear the urgent data pointer.  The principal
- * caller should be setting the urgent data pointer AFTER calling
- * us in any case.
- */
-
-static void
-netclear(void)
-{
-	/* Deleted */
-}
-
-/*
- * These routines add various telnet commands to the data stream.
- */
-
-static void
-doflush(void)
-{
-    NET2ADD(IAC, DO);
-    NETADD(TELOPT_TM);
-    flushline = 1;
-    flushout = 1;
-    (void) ttyflush(1);			/* Flush/drop output */
-    /* do printoption AFTER flush, otherwise the output gets tossed... */
-    printoption("SENT", DO, TELOPT_TM);
-}
-
-void
-xmitAO(void)
-{
-    NET2ADD(IAC, AO);
-    printoption("SENT", IAC, AO);
-    if (autoflush) {
-	doflush();
-    }
-}
-
-void
-xmitEL(void)
-{
-    NET2ADD(IAC, EL);
-    printoption("SENT", IAC, EL);
-}
-
-void
-xmitEC(void)
-{
-    NET2ADD(IAC, EC);
-    printoption("SENT", IAC, EC);
-}
-
-int
-dosynch(char *ch __unused)
-{
-    netclear();			/* clear the path to the network */
-    NETADD(IAC);
-    setneturg();
-    NETADD(DM);
-    printoption("SENT", IAC, DM);
-    return 1;
-}
-
-int want_status_response = 0;
-
-int
-get_status(char *ch __unused)
-{
-    unsigned char tmp[16];
-    unsigned char *cp;
-
-    if (my_want_state_is_dont(TELOPT_STATUS)) {
-	printf("Remote side does not support STATUS option\n");
-	return 0;
-    }
-    cp = tmp;
-
-    *cp++ = IAC;
-    *cp++ = SB;
-    *cp++ = TELOPT_STATUS;
-    *cp++ = TELQUAL_SEND;
-    *cp++ = IAC;
-    *cp++ = SE;
-    if (NETROOM() >= cp - tmp) {
-	ring_supply_data(&netoring, tmp, cp-tmp);
-	printsub('>', tmp+2, cp - tmp - 2);
-    }
-    ++want_status_response;
-    return 1;
-}
-
-void
-intp(void)
-{
-    NET2ADD(IAC, IP);
-    printoption("SENT", IAC, IP);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendbrk(void)
-{
-    NET2ADD(IAC, BREAK);
-    printoption("SENT", IAC, BREAK);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendabort(void)
-{
-    NET2ADD(IAC, ABORT);
-    printoption("SENT", IAC, ABORT);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendsusp(void)
-{
-    NET2ADD(IAC, SUSP);
-    printoption("SENT", IAC, SUSP);
-    flushline = 1;
-    if (autoflush) {
-	doflush();
-    }
-    if (autosynch) {
-	dosynch(NULL);
-    }
-}
-
-void
-sendeof(void)
-{
-    NET2ADD(IAC, xEOF);
-    printoption("SENT", IAC, xEOF);
-}
-
-void
-sendayt(void)
-{
-    NET2ADD(IAC, AYT);
-    printoption("SENT", IAC, AYT);
-}
-
-/*
- * Send a window size update to the remote system.
- */
-
-void
-sendnaws(void)
-{
-    long rows, cols;
-    unsigned char tmp[16];
-    unsigned char *cp;
-
-    if (my_state_is_wont(TELOPT_NAWS))
-	return;
-
-#define	PUTSHORT(cp, x) { if ((*cp++ = ((x)>>8)&0xff) == IAC) *cp++ = IAC; \
-			    if ((*cp++ = ((x))&0xff) == IAC) *cp++ = IAC; }
-
-    if (TerminalWindowSize(&rows, &cols) == 0) {	/* Failed */
-	return;
-    }
-
-    cp = tmp;
-
-    *cp++ = IAC;
-    *cp++ = SB;
-    *cp++ = TELOPT_NAWS;
-    PUTSHORT(cp, cols);
-    PUTSHORT(cp, rows);
-    *cp++ = IAC;
-    *cp++ = SE;
-    if (NETROOM() >= cp - tmp) {
-	ring_supply_data(&netoring, tmp, cp-tmp);
-	printsub('>', tmp+2, cp - tmp - 2);
-    }
-}
-
-void
-tel_enter_binary(int rw)
-{
-    if (rw&1)
-	send_do(TELOPT_BINARY, 1);
-    if (rw&2)
-	send_will(TELOPT_BINARY, 1);
-}
-
-void
-tel_leave_binary(int rw)
-{
-    if (rw&1)
-	send_dont(TELOPT_BINARY, 1);
-    if (rw&2)
-	send_wont(TELOPT_BINARY, 1);
-}
diff --git a/usr.bin/telnet/terminal.c b/usr.bin/telnet/terminal.c
deleted file mode 100644
index bea4e4d26778..000000000000
--- a/usr.bin/telnet/terminal.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Copyright (c) 1988, 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)terminal.c	8.2 (Berkeley) 2/16/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <arpa/telnet.h>
-#include <sys/types.h>
-
-#include <stdlib.h>
-
-#include "ring.h"
-
-#include "externs.h"
-#include "types.h"
-
-
-Ring		ttyoring, ttyiring;
-unsigned char	ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ];
-
-int termdata;			/* Debugging flag */
-
-#ifdef	USE_TERMIO
-# ifndef VDISCARD
-cc_t termFlushChar;
-# endif
-# ifndef VLNEXT
-cc_t termLiteralNextChar;
-# endif
-# ifndef VSUSP
-cc_t termSuspChar;
-# endif
-# ifndef VWERASE
-cc_t termWerasChar;
-# endif
-# ifndef VREPRINT
-cc_t termRprntChar;
-# endif
-# ifndef VSTART
-cc_t termStartChar;
-# endif
-# ifndef VSTOP
-cc_t termStopChar;
-# endif
-# ifndef VEOL
-cc_t termForw1Char;
-# endif
-# ifndef VEOL2
-cc_t termForw2Char;
-# endif
-# ifndef VSTATUS
-cc_t termAytChar;
-# endif
-#else
-cc_t termForw2Char;
-cc_t termAytChar;
-#endif
-
-/*
- * initialize the terminal data structures.
- */
-
-void
-init_terminal(void)
-{
-    if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) {
-	exit(1);
-    }
-    if (ring_init(&ttyiring, ttyibuf, sizeof ttyibuf) != 1) {
-	exit(1);
-    }
-    autoflush = TerminalAutoFlush();
-}
-
-/*
- *		Send as much data as possible to the terminal.
- *
- *		Return value:
- *			-1: No useful work done, data waiting to go out.
- *			 0: No data was waiting, so nothing was done.
- *			 1: All waiting data was written out.
- *			 n: All data - n was written out.
- */
-
-int
-ttyflush(int drop)
-{
-    int n, n0, n1;
-
-    n0 = ring_full_count(&ttyoring);
-    if ((n1 = n = ring_full_consecutive(&ttyoring)) > 0) {
-	if (drop) {
-	    TerminalFlushOutput();
-	    /* we leave 'n' alone! */
-	} else {
-	    n = TerminalWrite(ttyoring.consume, n);
-	}
-    }
-    if (n > 0) {
-	if (termdata && n) {
-	    Dump('>', ttyoring.consume, n);
-	}
-	/*
-	 * If we wrote everything, and the full count is
-	 * larger than what we wrote, then write the
-	 * rest of the buffer.
-	 */
-	if (n1 == n && n0 > n) {
-		n1 = n0 - n;
-		if (!drop)
-			n1 = TerminalWrite(ttyoring.bottom, n1);
-		if (n1 > 0)
-			n += n1;
-	}
-	ring_consumed(&ttyoring, n);
-    }
-    if (n < 0)
-	return -1;
-    if (n == n0) {
-	if (n0)
-	    return -1;
-	return 0;
-    }
-    return n0 - n + 1;
-}
-
-
-/*
- * These routines decides on what the mode should be (based on the values
- * of various global variables).
- */
-
-
-int
-getconnmode(void)
-{
-    extern int linemode;
-    int mode = 0;
-#ifdef	KLUDGELINEMODE
-    extern int kludgelinemode;
-#endif
-
-    if (my_want_state_is_dont(TELOPT_ECHO))
-	mode |= MODE_ECHO;
-
-    if (localflow)
-	mode |= MODE_FLOW;
-
-    if (my_want_state_is_will(TELOPT_BINARY))
-	mode |= MODE_INBIN;
-
-    if (his_want_state_is_will(TELOPT_BINARY))
-	mode |= MODE_OUTBIN;
-
-#ifdef	KLUDGELINEMODE
-    if (kludgelinemode) {
-	if (my_want_state_is_dont(TELOPT_SGA)) {
-	    mode |= (MODE_TRAPSIG|MODE_EDIT);
-	    if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) {
-		mode &= ~MODE_ECHO;
-	    }
-	}
-	return(mode);
-    }
-#endif
-    if (my_want_state_is_will(TELOPT_LINEMODE))
-	mode |= linemode;
-    return(mode);
-}
-
-void
-setconnmode(int force)
-{
-    int newmode;
-
-    newmode = getconnmode()|(force?MODE_FORCE:0);
-
-    TerminalNewMode(newmode);
-
-
-}
-
-void
-setcommandmode(void)
-{
-    TerminalNewMode(-1);
-}
diff --git a/usr.bin/telnet/types.h b/usr.bin/telnet/types.h
deleted file mode 100644
index 191d311fd154..000000000000
--- a/usr.bin/telnet/types.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)types.h	8.1 (Berkeley) 6/6/93
- */
-
-typedef struct {
-    char *modedescriptions;
-    char modetype;
-} Modelist;
-
-extern Modelist modelist[];
-
-typedef struct {
-    int
-	system,			/* what the current time is */
-	echotoggle,		/* last time user entered echo character */
-	modenegotiated,		/* last time operating mode negotiated */
-	didnetreceive,		/* last time we read data from network */
-	gotDM;			/* when did we last see a data mark */
-} Clocks;
-
-extern Clocks clocks;
diff --git a/usr.bin/telnet/utilities.c b/usr.bin/telnet/utilities.c
deleted file mode 100644
index d1eb8a8c4452..000000000000
--- a/usr.bin/telnet/utilities.c
+++ /dev/null
@@ -1,767 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if 0
-#ifndef lint
-static const char sccsid[] = "@(#)utilities.c	8.3 (Berkeley) 5/30/95";
-#endif
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#define	TELOPTS
-#define	TELCMDS
-#define	SLC_NAMES
-#include <arpa/telnet.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "general.h"
-
-#include "fdset.h"
-
-#include "ring.h"
-
-#include "defines.h"
-
-#include "externs.h"
-
-
-FILE	*NetTrace = 0;		/* Not in bss, since needs to stay */
-int	prettydump;
-
-/*
- * upcase()
- *
- *	Upcase (in place) the argument.
- */
-
-void
-upcase(char *argument)
-{
-    int c;
-
-    while ((c = *argument) != 0) {
-	if (islower(c)) {
-	    *argument = toupper(c);
-	}
-	argument++;
-    }
-}
-
-/*
- * SetSockOpt()
- *
- * Compensate for differences in 4.2 and 4.3 systems.
- */
-
-int
-SetSockOpt(int fd, int level, int option, int yesno)
-{
-    return setsockopt(fd, level, option,
-				(char *)&yesno, sizeof yesno);
-}
-
-/*
- * The following are routines used to print out debugging information.
- */
-
-unsigned char NetTraceFile[256] = "(standard output)";
-
-void
-SetNetTrace(char *file)
-{
-    if (NetTrace && NetTrace != stdout)
-	fclose(NetTrace);
-    if (file  && (strcmp(file, "-") != 0)) {
-	NetTrace = fopen(file, "w");
-	if (NetTrace) {
-	    strcpy((char *)NetTraceFile, file);
-	    return;
-	}
-	fprintf(stderr, "Cannot open %s.\n", file);
-    }
-    NetTrace = stdout;
-    strcpy((char *)NetTraceFile, "(standard output)");
-}
-
-void
-Dump(char direction, unsigned char *buffer, int length)
-{
-#   define BYTES_PER_LINE	32
-#   define min(x,y)	((x<y)? x:y)
-    unsigned char *pThis;
-    int offset;
-
-    offset = 0;
-
-    while (length) {
-	/* print one line */
-	fprintf(NetTrace, "%c 0x%x\t", direction, offset);
-	pThis = buffer;
-	if (prettydump) {
-	    buffer = buffer + min(length, BYTES_PER_LINE/2);
-	    while (pThis < buffer) {
-		fprintf(NetTrace, "%c%.2x",
-		    (((*pThis)&0xff) == 0xff) ? '*' : ' ',
-		    (*pThis)&0xff);
-		pThis++;
-	    }
-	    length -= BYTES_PER_LINE/2;
-	    offset += BYTES_PER_LINE/2;
-	} else {
-	    buffer = buffer + min(length, BYTES_PER_LINE);
-	    while (pThis < buffer) {
-		fprintf(NetTrace, "%.2x", (*pThis)&0xff);
-		pThis++;
-	    }
-	    length -= BYTES_PER_LINE;
-	    offset += BYTES_PER_LINE;
-	}
-	if (NetTrace == stdout) {
-	    fprintf(NetTrace, "\r\n");
-	} else {
-	    fprintf(NetTrace, "\n");
-	}
-	if (length < 0) {
-	    fflush(NetTrace);
-	    return;
-	}
-	/* find next unique line */
-    }
-    fflush(NetTrace);
-}
-
-
-void
-printoption(const char *direction, int cmd, int option)
-{
-	if (!showoptions)
-		return;
-	if (cmd == IAC) {
-		if (TELCMD_OK(option))
-		    fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option));
-		else
-		    fprintf(NetTrace, "%s IAC %d", direction, option);
-	} else {
-		const char *fmt;
-		fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" :
-			(cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0;
-		if (fmt) {
-		    fprintf(NetTrace, "%s %s ", direction, fmt);
-		    if (TELOPT_OK(option))
-			fprintf(NetTrace, "%s", TELOPT(option));
-		    else if (option == TELOPT_EXOPL)
-			fprintf(NetTrace, "EXOPL");
-		    else
-			fprintf(NetTrace, "%d", option);
-		} else
-		    fprintf(NetTrace, "%s %d %d", direction, cmd, option);
-	}
-	if (NetTrace == stdout) {
-	    fprintf(NetTrace, "\r\n");
-	    fflush(NetTrace);
-	} else {
-	    fprintf(NetTrace, "\n");
-	}
-	return;
-}
-
-void
-optionstatus(void)
-{
-    int i;
-    extern char will_wont_resp[], do_dont_resp[];
-
-    for (i = 0; i < 256; i++) {
-	if (do_dont_resp[i]) {
-	    if (TELOPT_OK(i))
-		printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]);
-	    else if (TELCMD_OK(i))
-		printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]);
-	    else
-		printf("resp DO_DONT %d: %d\n", i,
-				do_dont_resp[i]);
-	    if (my_want_state_is_do(i)) {
-		if (TELOPT_OK(i))
-		    printf("want DO   %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want DO   %s\n", TELCMD(i));
-		else
-		    printf("want DO   %d\n", i);
-	    } else {
-		if (TELOPT_OK(i))
-		    printf("want DONT %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want DONT %s\n", TELCMD(i));
-		else
-		    printf("want DONT %d\n", i);
-	    }
-	} else {
-	    if (my_state_is_do(i)) {
-		if (TELOPT_OK(i))
-		    printf("     DO   %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("     DO   %s\n", TELCMD(i));
-		else
-		    printf("     DO   %d\n", i);
-	    }
-	}
-	if (will_wont_resp[i]) {
-	    if (TELOPT_OK(i))
-		printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]);
-	    else if (TELCMD_OK(i))
-		printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]);
-	    else
-		printf("resp WILL_WONT %d: %d\n",
-				i, will_wont_resp[i]);
-	    if (my_want_state_is_will(i)) {
-		if (TELOPT_OK(i))
-		    printf("want WILL %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want WILL %s\n", TELCMD(i));
-		else
-		    printf("want WILL %d\n", i);
-	    } else {
-		if (TELOPT_OK(i))
-		    printf("want WONT %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("want WONT %s\n", TELCMD(i));
-		else
-		    printf("want WONT %d\n", i);
-	    }
-	} else {
-	    if (my_state_is_will(i)) {
-		if (TELOPT_OK(i))
-		    printf("     WILL %s\n", TELOPT(i));
-		else if (TELCMD_OK(i))
-		    printf("     WILL %s\n", TELCMD(i));
-		else
-		    printf("     WILL %d\n", i);
-	    }
-	}
-    }
-
-}
-
-void
-printsub(char direction, unsigned char *pointer, int length)
-{
-    int i;
-    extern int want_status_response;
-
-    if (showoptions || direction == 0 ||
-	(want_status_response && (pointer[0] == TELOPT_STATUS))) {
-	if (direction) {
-	    fprintf(NetTrace, "%s IAC SB ",
-				(direction == '<')? "RCVD":"SENT");
-	    if (length >= 3) {
-		int j;
-
-		i = pointer[length-2];
-		j = pointer[length-1];
-
-		if (i != IAC || j != SE) {
-		    fprintf(NetTrace, "(terminated by ");
-		    if (TELOPT_OK(i))
-			fprintf(NetTrace, "%s ", TELOPT(i));
-		    else if (TELCMD_OK(i))
-			fprintf(NetTrace, "%s ", TELCMD(i));
-		    else
-			fprintf(NetTrace, "%d ", i);
-		    if (TELOPT_OK(j))
-			fprintf(NetTrace, "%s", TELOPT(j));
-		    else if (TELCMD_OK(j))
-			fprintf(NetTrace, "%s", TELCMD(j));
-		    else
-			fprintf(NetTrace, "%d", j);
-		    fprintf(NetTrace, ", not IAC SE!) ");
-		}
-	    }
-	    length -= 2;
-	}
-	if (length < 1) {
-	    fprintf(NetTrace, "(Empty suboption??\?)");
-	    if (NetTrace == stdout)
-		fflush(NetTrace);
-	    return;
-	}
-	switch (pointer[0]) {
-	case TELOPT_TTYPE:
-	    fprintf(NetTrace, "TERMINAL-TYPE ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		fprintf(NetTrace, "SEND");
-		break;
-	    default:
-		fprintf(NetTrace,
-				"- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-	case TELOPT_TSPEED:
-	    fprintf(NetTrace, "TERMINAL-SPEED");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, " IS ");
-		fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2);
-		break;
-	    default:
-		if (pointer[1] == 1)
-		    fprintf(NetTrace, " SEND");
-		else
-		    fprintf(NetTrace, " %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " ?%d?", pointer[i]);
-		break;
-	    }
-	    break;
-
-	case TELOPT_LFLOW:
-	    fprintf(NetTrace, "TOGGLE-FLOW-CONTROL");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case LFLOW_OFF:
-		fprintf(NetTrace, " OFF"); break;
-	    case LFLOW_ON:
-		fprintf(NetTrace, " ON"); break;
-	    case LFLOW_RESTART_ANY:
-		fprintf(NetTrace, " RESTART-ANY"); break;
-	    case LFLOW_RESTART_XON:
-		fprintf(NetTrace, " RESTART-XON"); break;
-	    default:
-		fprintf(NetTrace, " %d (unknown)", pointer[1]);
-	    }
-	    for (i = 2; i < length; i++)
-		fprintf(NetTrace, " ?%d?", pointer[i]);
-	    break;
-
-	case TELOPT_NAWS:
-	    fprintf(NetTrace, "NAWS");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    if (length == 2) {
-		fprintf(NetTrace, " ?%d?", pointer[1]);
-		break;
-	    }
-	    fprintf(NetTrace, " %d %d (%d)",
-		pointer[1], pointer[2],
-		(int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
-	    if (length == 4) {
-		fprintf(NetTrace, " ?%d?", pointer[3]);
-		break;
-	    }
-	    fprintf(NetTrace, " %d %d (%d)",
-		pointer[3], pointer[4],
-		(int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
-	    for (i = 5; i < length; i++)
-		fprintf(NetTrace, " ?%d?", pointer[i]);
-	    break;
-
-
-
-	case TELOPT_LINEMODE:
-	    fprintf(NetTrace, "LINEMODE ");
-	    if (length < 2) {
-		fprintf(NetTrace, " (empty suboption??\?)");
-		break;
-	    }
-	    switch (pointer[1]) {
-	    case WILL:
-		fprintf(NetTrace, "WILL ");
-		goto common;
-	    case WONT:
-		fprintf(NetTrace, "WONT ");
-		goto common;
-	    case DO:
-		fprintf(NetTrace, "DO ");
-		goto common;
-	    case DONT:
-		fprintf(NetTrace, "DONT ");
-	    common:
-		if (length < 3) {
-		    fprintf(NetTrace, "(no option??\?)");
-		    break;
-		}
-		switch (pointer[2]) {
-		case LM_FORWARDMASK:
-		    fprintf(NetTrace, "Forward Mask");
-		    for (i = 3; i < length; i++)
-			fprintf(NetTrace, " %x", pointer[i]);
-		    break;
-		default:
-		    fprintf(NetTrace, "%d (unknown)", pointer[2]);
-		    for (i = 3; i < length; i++)
-			fprintf(NetTrace, " %d", pointer[i]);
-		    break;
-		}
-		break;
-
-	    case LM_SLC:
-		fprintf(NetTrace, "SLC");
-		for (i = 2; i < length - 2; i += 3) {
-		    if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
-			fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC]));
-		    else
-			fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]);
-		    switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
-		    case SLC_NOSUPPORT:
-			fprintf(NetTrace, " NOSUPPORT"); break;
-		    case SLC_CANTCHANGE:
-			fprintf(NetTrace, " CANTCHANGE"); break;
-		    case SLC_VARIABLE:
-			fprintf(NetTrace, " VARIABLE"); break;
-		    case SLC_DEFAULT:
-			fprintf(NetTrace, " DEFAULT"); break;
-		    }
-		    fprintf(NetTrace, "%s%s%s",
-			pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
-			pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
-		    if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
-						SLC_FLUSHOUT| SLC_LEVELBITS))
-			fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]);
-		    fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]);
-		    if ((pointer[i+SLC_VALUE] == IAC) &&
-			(pointer[i+SLC_VALUE+1] == IAC))
-				i++;
-		}
-		for (; i < length; i++)
-		    fprintf(NetTrace, " ?%d?", pointer[i]);
-		break;
-
-	    case LM_MODE:
-		fprintf(NetTrace, "MODE ");
-		if (length < 3) {
-		    fprintf(NetTrace, "(no mode??\?)");
-		    break;
-		}
-		{
-		    char tbuf[64];
-		    sprintf(tbuf, "%s%s%s%s%s",
-			pointer[2]&MODE_EDIT ? "|EDIT" : "",
-			pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
-			pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
-			pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
-			pointer[2]&MODE_ACK ? "|ACK" : "");
-		    fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0");
-		}
-		if (pointer[2]&~(MODE_MASK))
-		    fprintf(NetTrace, " (0x%x)", pointer[2]);
-		for (i = 3; i < length; i++)
-		    fprintf(NetTrace, " ?0x%x?", pointer[i]);
-		break;
-	    default:
-		fprintf(NetTrace, "%d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " %d", pointer[i]);
-	    }
-	    break;
-
-	case TELOPT_STATUS: {
-	    const char *cp;
-	    int j, k;
-
-	    fprintf(NetTrace, "STATUS");
-
-	    switch (pointer[1]) {
-	    default:
-		if (pointer[1] == TELQUAL_SEND)
-		    fprintf(NetTrace, " SEND");
-		else
-		    fprintf(NetTrace, " %d (unknown)", pointer[1]);
-		for (i = 2; i < length; i++)
-		    fprintf(NetTrace, " ?%d?", pointer[i]);
-		break;
-	    case TELQUAL_IS:
-		if (--want_status_response < 0)
-		    want_status_response = 0;
-		if (NetTrace == stdout)
-		    fprintf(NetTrace, " IS\r\n");
-		else
-		    fprintf(NetTrace, " IS\n");
-
-		for (i = 2; i < length; i++) {
-		    switch(pointer[i]) {
-		    case DO:	cp = "DO"; goto common2;
-		    case DONT:	cp = "DONT"; goto common2;
-		    case WILL:	cp = "WILL"; goto common2;
-		    case WONT:	cp = "WONT"; goto common2;
-		    common2:
-			i++;
-			if (TELOPT_OK((int)pointer[i]))
-			    fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i]));
-			else
-			    fprintf(NetTrace, " %s %d", cp, pointer[i]);
-
-			if (NetTrace == stdout)
-			    fprintf(NetTrace, "\r\n");
-			else
-			    fprintf(NetTrace, "\n");
-			break;
-
-		    case SB:
-			fprintf(NetTrace, " SB ");
-			i++;
-			j = k = i;
-			while (j < length) {
-			    if (pointer[j] == SE) {
-				if (j+1 == length)
-				    break;
-				if (pointer[j+1] == SE)
-				    j++;
-				else
-				    break;
-			    }
-			    pointer[k++] = pointer[j++];
-			}
-			printsub(0, &pointer[i], k - i);
-			if (i < length) {
-			    fprintf(NetTrace, " SE");
-			    i = j;
-			} else
-			    i = j - 1;
-
-			if (NetTrace == stdout)
-			    fprintf(NetTrace, "\r\n");
-			else
-			    fprintf(NetTrace, "\n");
-
-			break;
-
-		    default:
-			fprintf(NetTrace, " %d", pointer[i]);
-			break;
-		    }
-		}
-		break;
-	    }
-	    break;
-	  }
-
-	case TELOPT_XDISPLOC:
-	    fprintf(NetTrace, "X-DISPLAY-LOCATION ");
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
-		break;
-	    case TELQUAL_SEND:
-		fprintf(NetTrace, "SEND");
-		break;
-	    default:
-		fprintf(NetTrace, "- unknown qualifier %d (0x%x).",
-				pointer[1], pointer[1]);
-	    }
-	    break;
-
-	case TELOPT_NEW_ENVIRON:
-	    fprintf(NetTrace, "NEW-ENVIRON ");
-#ifdef	OLD_ENVIRON
-	    goto env_common1;
-	case TELOPT_OLD_ENVIRON:
-	    fprintf(NetTrace, "OLD-ENVIRON");
-	env_common1:
-#endif
-	    switch (pointer[1]) {
-	    case TELQUAL_IS:
-		fprintf(NetTrace, "IS ");
-		goto env_common;
-	    case TELQUAL_SEND:
-		fprintf(NetTrace, "SEND ");
-		goto env_common;
-	    case TELQUAL_INFO:
-		fprintf(NetTrace, "INFO ");
-	    env_common:
-		{
-		    int noquote = 2;
-#if defined(ENV_HACK) && defined(OLD_ENVIRON)
-		    extern int old_env_var, old_env_value;
-#endif
-		    for (i = 2; i < length; i++ ) {
-			switch (pointer[i]) {
-			case NEW_ENV_VALUE:
-#ifdef OLD_ENVIRON
-		     /*	case NEW_ENV_OVAR: */
-			    if (pointer[0] == TELOPT_OLD_ENVIRON) {
-# ifdef	ENV_HACK
-				if (old_env_var == OLD_ENV_VALUE)
-				    fprintf(NetTrace, "\" (VALUE) " + noquote);
-				else
-# endif
-				    fprintf(NetTrace, "\" VAR " + noquote);
-			    } else
-#endif /* OLD_ENVIRON */
-				fprintf(NetTrace, "\" VALUE " + noquote);
-			    noquote = 2;
-			    break;
-
-			case NEW_ENV_VAR:
-#ifdef OLD_ENVIRON
-		     /* case OLD_ENV_VALUE: */
-			    if (pointer[0] == TELOPT_OLD_ENVIRON) {
-# ifdef	ENV_HACK
-				if (old_env_value == OLD_ENV_VAR)
-				    fprintf(NetTrace, "\" (VAR) " + noquote);
-				else
-# endif
-				    fprintf(NetTrace, "\" VALUE " + noquote);
-			    } else
-#endif /* OLD_ENVIRON */
-				fprintf(NetTrace, "\" VAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_ESC:
-			    fprintf(NetTrace, "\" ESC " + noquote);
-			    noquote = 2;
-			    break;
-
-			case ENV_USERVAR:
-			    fprintf(NetTrace, "\" USERVAR " + noquote);
-			    noquote = 2;
-			    break;
-
-			default:
-			    if (isprint(pointer[i]) && pointer[i] != '"') {
-				if (noquote) {
-				    putc('"', NetTrace);
-				    noquote = 0;
-				}
-				putc(pointer[i], NetTrace);
-			    } else {
-				fprintf(NetTrace, "\" %03o " + noquote,
-							pointer[i]);
-				noquote = 2;
-			    }
-			    break;
-			}
-		    }
-		    if (!noquote)
-			putc('"', NetTrace);
-		    break;
-		}
-	    }
-	    break;
-
-	default:
-	    if (TELOPT_OK(pointer[0]))
-		fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0]));
-	    else
-		fprintf(NetTrace, "%d (unknown)", pointer[0]);
-	    for (i = 1; i < length; i++)
-		fprintf(NetTrace, " %d", pointer[i]);
-	    break;
-	}
-	if (direction) {
-	    if (NetTrace == stdout)
-		fprintf(NetTrace, "\r\n");
-	    else
-		fprintf(NetTrace, "\n");
-	}
-	if (NetTrace == stdout)
-	    fflush(NetTrace);
-    }
-}
-
-/* EmptyTerminal - called to make sure that the terminal buffer is empty.
- *			Note that we consider the buffer to run all the
- *			way to the kernel (thus the select).
- */
-
-static void
-EmptyTerminal(void)
-{
-    fd_set	o;
-
-    FD_ZERO(&o);
-
-    if (TTYBYTES() == 0) {
-	FD_SET(tout, &o);
-	(void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
-			(struct timeval *) 0);	/* wait for TTLOWAT */
-    } else {
-	while (TTYBYTES()) {
-	    (void) ttyflush(0);
-	    FD_SET(tout, &o);
-	    (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
-				(struct timeval *) 0);	/* wait for TTLOWAT */
-	}
-    }
-}
-
-static void
-SetForExit(void)
-{
-    setconnmode(0);
-    do {
-	(void)telrcv();			/* Process any incoming data */
-	EmptyTerminal();
-    } while (ring_full_count(&netiring));	/* While there is any */
-    setcommandmode();
-    fflush(stdout);
-    fflush(stderr);
-    setconnmode(0);
-    EmptyTerminal();			/* Flush the path to the tty */
-    setcommandmode();
-}
-
-void
-Exit(int returnCode)
-{
-    SetForExit();
-    exit(returnCode);
-}
-
-void
-ExitString(const char *string, int returnCode)
-{
-    SetForExit();
-    fwrite(string, 1, strlen(string), stderr);
-    exit(returnCode);
-}