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Diffstat (limited to 'secure/usr.bin/telnet/commands.c')
| -rw-r--r-- | secure/usr.bin/telnet/commands.c | 2945 |
1 files changed, 0 insertions, 2945 deletions
diff --git a/secure/usr.bin/telnet/commands.c b/secure/usr.bin/telnet/commands.c deleted file mode 100644 index 3b7ee7b3e922..000000000000 --- a/secure/usr.bin/telnet/commands.c +++ /dev/null @@ -1,2945 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)commands.c 8.2 (Berkeley) 12/15/93"; -#endif /* not lint */ - -#if defined(unix) -#include <sys/param.h> -#if defined(CRAY) || defined(sysV88) -#include <sys/types.h> -#endif -#include <sys/file.h> -#else -#include <sys/types.h> -#endif /* defined(unix) */ -#include <sys/socket.h> -#include <netinet/in.h> -#ifdef CRAY -#include <fcntl.h> -#endif /* CRAY */ - -#include <signal.h> -#include <netdb.h> -#include <ctype.h> -#include <pwd.h> -#include <varargs.h> -#include <errno.h> - -#include <arpa/telnet.h> - -#include "general.h" - -#include "ring.h" - -#include "externs.h" -#include "defines.h" -#include "types.h" - -#if !defined(CRAY) && !defined(sysV88) -#include <netinet/in_systm.h> -# if (defined(vax) || defined(tahoe) || defined(hp300)) && !defined(ultrix) -# include <machine/endian.h> -# endif /* vax */ -#endif /* !defined(CRAY) && !defined(sysV88) */ -#include <netinet/ip.h> - - -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 64 -#endif MAXHOSTNAMELEN - -#if defined(IPPROTO_IP) && defined(IP_TOS) -int tos = -1; -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - -char *hostname; -static char _hostname[MAXHOSTNAMELEN]; - -extern char *getenv(); - -extern int isprefix(); -extern char **genget(); -extern int Ambiguous(); - -static call(); - -typedef struct { - char *name; /* command name */ - char *help; /* help string (NULL for no help) */ - int (*handler)(); /* 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]; - - static void -makeargv() -{ - register char *cp, *cp2, c; - register char **argp = margv; - - margc = 0; - cp = line; - if (*cp == '!') { /* Special case shell escape */ - strcpy(saveline, line); /* save for shell command */ - *argp++ = "!"; /* No room in string to get this */ - margc++; - cp++; - } - while (c = *cp) { - register 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 -special(s) - register char *s; -{ - register 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 char * -control(c) - register 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.... - */ - register 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 { - char *name; /* How user refers to it (case independent) */ - char *help; /* Help information (0 ==> no help) */ - int needconnect; /* Need to be connected */ - int narg; /* Number of arguments */ - int (*handler)(); /* 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 P((void)), - send_help P((void)), - send_docmd P((char *)), - send_dontcmd P((char *)), - send_willcmd P((char *)), - send_wontcmd P((char *)); - -static struct sendlist Sendlist[] = { - { "ao", "Send Telnet Abort output", 1, 0, 0, 2, AO }, - { "ayt", "Send Telnet 'Are You There'", 1, 0, 0, 2, AYT }, - { "brk", "Send Telnet Break", 1, 0, 0, 2, BREAK }, - { "break", 0, 1, 0, 0, 2, BREAK }, - { "ec", "Send Telnet Erase Character", 1, 0, 0, 2, EC }, - { "el", "Send Telnet Erase Line", 1, 0, 0, 2, EL }, - { "escape", "Send current escape character", 1, 0, send_esc, 1, 0 }, - { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, 0, 2, GA }, - { "ip", "Send Telnet Interrupt Process", 1, 0, 0, 2, IP }, - { "intp", 0, 1, 0, 0, 2, IP }, - { "interrupt", 0, 1, 0, 0, 2, IP }, - { "intr", 0, 1, 0, 0, 2, IP }, - { "nop", "Send Telnet 'No operation'", 1, 0, 0, 2, NOP }, - { "eor", "Send Telnet 'End of Record'", 1, 0, 0, 2, EOR }, - { "abort", "Send Telnet 'Abort Process'", 1, 0, 0, 2, ABORT }, - { "susp", "Send Telnet 'Suspend Process'", 1, 0, 0, 2, SUSP }, - { "eof", "Send Telnet End of File Character", 1, 0, 0, 2, xEOF }, - { "synch", "Perform Telnet 'Synch operation'", 1, 0, dosynch, 2, 0 }, - { "getstatus", "Send request for STATUS", 1, 0, get_status, 6, 0 }, - { "?", "Display send options", 0, 0, send_help, 0, 0 }, - { "help", 0, 0, 0, send_help, 0, 0 }, - { "do", 0, 0, 1, send_docmd, 3, 0 }, - { "dont", 0, 0, 1, send_dontcmd, 3, 0 }, - { "will", 0, 0, 1, send_willcmd, 3, 0 }, - { "wont", 0, 0, 1, send_wontcmd, 3, 0 }, - { 0 } -}; - -#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \ - sizeof(struct sendlist))) - - static int -sendcmd(argc, argv) - int argc; - char **argv; -{ - int count; /* how many bytes we are going to need to send */ - int i; - int question = 0; /* was at least one argument a question */ - 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(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 (s->handler == 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"); - (void) 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() -{ - NETADD(escape); - return 1; -} - - static int -send_docmd(name) - 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(name) - char *name; -{ - return(send_tncmd(send_will, "will", name)); -} - static int -send_wontcmd(name) - char *name; -{ - return(send_tncmd(send_wont, "wont", name)); -} - - int -send_tncmd(func, cmd, name) - void (*func)(); - char *cmd, *name; -{ - char **cpp; - extern char *telopts[]; - register int val = 0; - - if (isprefix(name, "help") || isprefix(name, "?")) { - register 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 { - register 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() -{ - 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() -{ - donelclchars = 1; - return 1; -} - - static int -togdebug() -{ -#ifndef NOT43 - if (net > 0 && - (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, debug)) < 0) { - perror("setsockopt (SO_DEBUG)"); - } -#else /* NOT43 */ - if (debug) { - if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 0, 0) < 0) - perror("setsockopt (SO_DEBUG)"); - } else - printf("Cannot turn off socket debugging\n"); -#endif /* NOT43 */ - return 1; -} - - - static int -togcrlf() -{ - 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(val) - 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(val) - 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(val) - 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; -} - - -static int togglehelp P((void)); -#if defined(AUTHENTICATION) -extern int auth_togdebug P((int)); -#endif -#ifdef ENCRYPTION -extern int EncryptAutoEnc P((int)); -extern int EncryptAutoDec P((int)); -extern int EncryptDebug P((int)); -extern int EncryptVerbose P((int)); -#endif /* ENCRYPTION */ - -struct togglelist { - char *name; /* name of toggle */ - char *help; /* help message */ - int (*handler)(); /* routine to do actual setting */ - int *variable; - 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" }, -#if defined(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>", - togcrlf, - &crlf, - 0 }, - { "crmod", - "mapping of received carriage returns", - 0, - &crmod, - "map carriage return on output" }, - { "localchars", - "local recognition of certain control characters", - lclchars, - &localchars, - "recognize certain control characters" }, - { " ", "", 0 }, /* empty line */ -#if defined(unix) && defined(TN3270) - { "apitrace", - "(debugging) toggle tracing of API transactions", - 0, - &apitrace, - "trace API transactions" }, - { "cursesdata", - "(debugging) toggle printing of hexadecimal curses data", - 0, - &cursesdata, - "print hexadecimal representation of curses data" }, -#endif /* defined(unix) && defined(TN3270) */ - { "debug", - "debugging", - togdebug, - &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" }, -#if defined(unix) - { "termdata", - "(debugging) toggle printing of hexadecimal terminal data", - 0, - &termdata, - "print hexadecimal representation of terminal traffic" }, -#endif /* defined(unix) */ - { "?", - 0, - togglehelp }, - { "help", - 0, - togglehelp }, - { 0 } -}; - - static int -togglehelp() -{ - 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(set) - 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(argc, argv) - 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(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 }; -#endif - -struct setlist { - char *name; /* name */ - char *help; /* help information */ - void (*handler)(); - cc_t *charp; /* where it is located at */ -}; - -static struct setlist Setlist[] = { -#ifdef KLUDGELINEMODE - { "echo", "character to toggle local echoing on/off", 0, &echoc }, -#endif - { "escape", "character to escape back to telnet command mode", 0, &escape }, - { "rlogin", "rlogin escape character", 0, &rlogin }, - { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile}, - { " ", "" }, - { " ", "The following need 'localchars' to be toggled true", 0, 0 }, - { "flushoutput", "character to cause an Abort Output", 0, termFlushCharp }, - { "interrupt", "character to cause an Interrupt Process", 0, termIntCharp }, - { "quit", "character to cause an Abort process", 0, termQuitCharp }, - { "eof", "character to cause an EOF ", 0, termEofCharp }, - { " ", "" }, - { " ", "The following are for local editing in linemode", 0, 0 }, - { "erase", "character to use to erase a character", 0, termEraseCharp }, - { "kill", "character to use to erase a line", 0, termKillCharp }, - { "lnext", "character to use for literal next", 0, termLiteralNextCharp }, - { "susp", "character to cause a Suspend Process", 0, termSuspCharp }, - { "reprint", "character to use for line reprint", 0, termRprntCharp }, - { "worderase", "character to use to erase a word", 0, termWerasCharp }, - { "start", "character to use for XON", 0, termStartCharp }, - { "stop", "character to use for XOFF", 0, termStopCharp }, - { "forw1", "alternate end of line character", 0, termForw1Charp }, - { "forw2", "alternate end of line character", 0, termForw2Charp }, - { "ayt", "alternate AYT character", 0, termAytCharp }, - { 0 } -}; - -#if defined(CRAY) && !defined(__STDC__) -/* Work around compiler bug in pcc 4.1.5 */ - void -_setlist_init() -{ -#ifndef KLUDGELINEMODE -#define N 5 -#else -#define N 6 -#endif - Setlist[N+0].charp = &termFlushChar; - Setlist[N+1].charp = &termIntChar; - Setlist[N+2].charp = &termQuitChar; - Setlist[N+3].charp = &termEofChar; - Setlist[N+6].charp = &termEraseChar; - Setlist[N+7].charp = &termKillChar; - Setlist[N+8].charp = &termLiteralNextChar; - Setlist[N+9].charp = &termSuspChar; - Setlist[N+10].charp = &termRprntChar; - Setlist[N+11].charp = &termWerasChar; - Setlist[N+12].charp = &termStartChar; - Setlist[N+13].charp = &termStopChar; - Setlist[N+14].charp = &termForw1Char; - Setlist[N+15].charp = &termForw2Char; - Setlist[N+16].charp = &termAytChar; -#undef N -} -#endif /* defined(CRAY) && !defined(__STDC__) */ - - static struct setlist * -getset(name) - char *name; -{ - return (struct setlist *) - genget(name, (char **) Setlist, sizeof(struct setlist)); -} - - void -set_escape_char(s) - 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(argc, argv) - 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(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(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(argc, argv) - int argc; - char *argv[]; -{ - struct setlist *ct; - struct togglelist *c; - register 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(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(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() -{ - kludgelinemode = 1; - send_wont(TELOPT_LINEMODE, 1); - send_dont(TELOPT_SGA, 1); - send_dont(TELOPT_ECHO, 1); -} -#endif - - static int -dolinemode() -{ -#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() -{ -#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(bit, on) - int bit, 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; -} - - int -setmode(bit) -{ - return dolmmode(bit, 1); -} - - int -clearmode(bit) -{ - return dolmmode(bit, 0); -} - -struct modelist { - char *name; /* command name */ - char *help; /* help string */ - int (*handler)(); /* routine which executes command */ - int needconnect; /* Do we need to be connected to execute? */ - int arg1; -}; - -extern int modehelp(); - -static struct modelist ModeList[] = { - { "character", "Disable LINEMODE option", docharmode, 1 }, -#ifdef KLUDGELINEMODE - { "", "(or disable obsolete line-by-line mode)", 0 }, -#endif - { "line", "Enable LINEMODE option", dolinemode, 1 }, -#ifdef KLUDGELINEMODE - { "", "(or enable obsolete line-by-line mode)", 0 }, -#endif - { "", "", 0 }, - { "", "These require the LINEMODE option to be enabled", 0 }, - { "isig", "Enable signal trapping", setmode, 1, MODE_TRAPSIG }, - { "+isig", 0, setmode, 1, MODE_TRAPSIG }, - { "-isig", "Disable signal trapping", clearmode, 1, MODE_TRAPSIG }, - { "edit", "Enable character editing", setmode, 1, MODE_EDIT }, - { "+edit", 0, setmode, 1, MODE_EDIT }, - { "-edit", "Disable character editing", clearmode, 1, MODE_EDIT }, - { "softtabs", "Enable tab expansion", setmode, 1, MODE_SOFT_TAB }, - { "+softtabs", 0, setmode, 1, MODE_SOFT_TAB }, - { "-softtabs", "Disable character editing", clearmode, 1, MODE_SOFT_TAB }, - { "litecho", "Enable literal character echo", setmode, 1, MODE_LIT_ECHO }, - { "+litecho", 0, setmode, 1, MODE_LIT_ECHO }, - { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO }, - { "help", 0, modehelp, 0 }, -#ifdef KLUDGELINEMODE - { "kludgeline", 0, dokludgemode, 1 }, -#endif - { "", "", 0 }, - { "?", "Print help information", modehelp, 0 }, - { 0 }, -}; - - - int -modehelp() -{ - 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(argc, argv) - 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(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(argc, argv) - 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(sl) || Ambiguous(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(argc, argv) - int argc; - char *argv[]; -{ - register 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]; - if (!In3270) { - printf("Escape character is '%s'.\n", control(escape)); - } - (void) fflush(stdout); - return 1; -} - - /*VARARGS*/ - static int -togcrmod() -{ - 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; -} - - /*VARARGS*/ - int -suspend() -{ -#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; -} - -#if !defined(TN3270) - /*ARGSUSED*/ - int -shell(argc, argv) - int argc; - char *argv[]; -{ - 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. - */ - register char *shellp, *shellname; - extern char *rindex(); - - shellp = getenv("SHELL"); - if (shellp == NULL) - shellp = "/bin/sh"; - if ((shellname = rindex(shellp, '/')) == 0) - shellname = shellp; - else - shellname++; - if (argc > 1) - execl(shellp, shellname, "-c", &saveline[1], 0); - else - execl(shellp, shellname, 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; -} -#else /* !defined(TN3270) */ -extern int shell(); -#endif /* !defined(TN3270) */ - - /*VARARGS*/ - static -bye(argc, argv) - int argc; /* Number of arguments */ - char *argv[]; /* arguments */ -{ - extern int resettermname; - - if (connected) { - (void) shutdown(net, 2); - printf("Connection closed.\n"); - (void) NetClose(net); - connected = 0; - resettermname = 1; -#if defined(AUTHENTICATION) || defined(ENCRYPTION) - auth_encrypt_connect(connected); -#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ - /* reset options */ - tninit(); -#if defined(TN3270) - SetIn3270(); /* Get out of 3270 mode */ -#endif /* defined(TN3270) */ - } - if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) { - longjmp(toplevel, 1); - /* NOTREACHED */ - } - return 1; /* Keep lint, etc., happy */ -} - -/*VARARGS*/ -quit() -{ - (void) call(bye, "bye", "fromquit", 0); - Exit(0); - /*NOTREACHED*/ -} - -/*VARARGS*/ - int -logout() -{ - send_do(TELOPT_LOGOUT, 1); - (void) netflush(); - return 1; -} - - -/* - * The SLC command. - */ - -struct slclist { - char *name; - char *help; - void (*handler)(); - int arg; -}; - -static void slc_help(); - -struct slclist SlcList[] = { - { "export", "Use local special character definitions", - 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", 0, slc_help, 0 }, - { "?", "Print help information", slc_help, 0 }, - { 0 }, -}; - - static void -slc_help() -{ - 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(name) - char *name; -{ - return (struct slclist *) - genget(name, (char **) SlcList, sizeof(struct slclist)); -} - - static -slccmd(argc, argv) - 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(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 { - char *name; - char *help; - void (*handler)(); - int narg; -}; - -extern struct env_lst * - env_define P((unsigned char *, unsigned char *)); -extern void - env_undefine P((unsigned char *)), - env_export P((unsigned char *)), - env_unexport P((unsigned char *)), - env_send P((unsigned char *)), -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - env_varval P((unsigned char *)), -#endif - env_list P((void)); -static void - env_help P((void)); - -struct envlist EnvList[] = { - { "define", "Define an environment variable", - (void (*)())env_define, 2 }, - { "undefine", "Undefine an environment variable", - env_undefine, 1 }, - { "export", "Mark an environment variable for automatic export", - env_export, 1 }, - { "unexport", "Don't mark an environment variable for automatic export", - env_unexport, 1 }, - { "send", "Send an environment variable", env_send, 1 }, - { "list", "List the current environment variables", - env_list, 0 }, -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)", - env_varval, 1 }, -#endif - { "help", 0, env_help, 0 }, - { "?", "Print help information", env_help, 0 }, - { 0 }, -}; - - static void -env_help() -{ - 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(name) - char *name; -{ - return (struct envlist *) - genget(name, (char **) EnvList, sizeof(struct envlist)); -} - -env_cmd(argc, argv) - 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(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; - - struct env_lst * -env_find(var) - unsigned char *var; -{ - register struct env_lst *ep; - - for (ep = envlisthead.next; ep; ep = ep->next) { - if (strcmp((char *)ep->var, (char *)var) == 0) - return(ep); - } - return(NULL); -} - - void -env_init() -{ - extern char **environ; - register char **epp, *cp; - register struct env_lst *ep; - extern char *index(); - - for (epp = environ; *epp; epp++) { - if (cp = index(*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 = index((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((unsigned char *)"USER", ep->value); - env_unexport((unsigned char *)"USER"); - } - env_export((unsigned char *)"DISPLAY"); - env_export((unsigned char *)"PRINTER"); -} - - struct env_lst * -env_define(var, value) - unsigned char *var, *value; -{ - register 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 = (unsigned char *)strdup((char *)var); - ep->value = (unsigned char *)strdup((char *)value); - return(ep); -} - - void -env_undefine(var) - unsigned char *var; -{ - register 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(var) - unsigned char *var; -{ - register struct env_lst *ep; - - if (ep = env_find(var)) - ep->export = 1; -} - - void -env_unexport(var) - unsigned char *var; -{ - register struct env_lst *ep; - - if (ep = env_find(var)) - ep->export = 0; -} - - void -env_send(var) - unsigned char *var; -{ - register 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() -{ - register 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(init, welldefined) - int init; -{ - static struct env_lst *nep = NULL; - - if (init) { - nep = &envlisthead; - return; - } - if (nep) { - while (nep = nep->next) { - if (nep->export && (nep->welldefined == welldefined)) - return(nep->var); - } - } - return(NULL); -} - - unsigned char * -env_getvalue(var) - unsigned char *var; -{ - register struct env_lst *ep; - - if (ep = env_find(var)) - return(ep->value); - return(NULL); -} - -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - void -env_varval(what) - 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 - -#if defined(AUTHENTICATION) -/* - * The AUTHENTICATE command. - */ - -struct authlist { - char *name; - char *help; - int (*handler)(); - int narg; -}; - -extern int - auth_enable P((char *)), - auth_disable P((char *)), - auth_status P((void)); -static int - auth_help P((void)); - -struct authlist AuthList[] = { - { "status", "Display current status of authentication information", - 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", 0, auth_help, 0 }, - { "?", "Print help information", auth_help, 0 }, - { 0 }, -}; - - static int -auth_help() -{ - 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; -} - -auth_cmd(argc, argv) - 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(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], argv[3])); -} -#endif - -#ifdef ENCRYPTION -/* - * The ENCRYPT command. - */ - -struct encryptlist { - char *name; - char *help; - int (*handler)(); - int needconnect; - int minarg; - int maxarg; -}; - -extern int - EncryptEnable P((char *, char *)), - EncryptDisable P((char *, char *)), - EncryptType P((char *, char *)), - EncryptStart P((char *)), - EncryptStartInput P((void)), - EncryptStartOutput P((void)), - EncryptStop P((char *)), - EncryptStopInput P((void)), - EncryptStopOutput P((void)), - EncryptStatus P((void)); -static int - EncryptHelp P((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)", - EncryptStart, 1, 0, 1 }, - { "stop", "Stop encryption. ('encrypt stop ?' for more)", - EncryptStop, 1, 0, 1 }, - { "input", "Start encrypting the input stream", - EncryptStartInput, 1, 0, 0 }, - { "-input", "Stop encrypting the input stream", - EncryptStopInput, 1, 0, 0 }, - { "output", "Start encrypting the output stream", - EncryptStartOutput, 1, 0, 0 }, - { "-output", "Stop encrypting the output stream", - EncryptStopOutput, 1, 0, 0 }, - - { "status", "Display current status of authentication information", - EncryptStatus, 0, 0, 0 }, - { "help", 0, EncryptHelp, 0, 0, 0 }, - { "?", "Print help information", EncryptHelp, 0, 0, 0 }, - { 0 }, -}; - - static int -EncryptHelp() -{ - 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; -} - -encrypt_cmd(argc, argv) - 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(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, - argc > 2 ? argv[4] : 0)); -} -#endif /* ENCRYPTION */ - -#if defined(unix) && defined(TN3270) - static void -filestuff(fd) - int fd; -{ - int res; - -#ifdef F_GETOWN - setconnmode(0); - res = fcntl(fd, F_GETOWN, 0); - setcommandmode(); - - if (res == -1) { - perror("fcntl"); - return; - } - printf("\tOwner is %d.\n", res); -#endif - - setconnmode(0); - res = fcntl(fd, F_GETFL, 0); - setcommandmode(); - - if (res == -1) { - perror("fcntl"); - return; - } -#ifdef notdef - printf("\tFlags are 0x%x: %s\n", res, decodeflags(res)); -#endif -} -#endif /* defined(unix) && defined(TN3270) */ - -/* - * Print status about the connection. - */ - /*ARGSUSED*/ - static -status(argc, argv) - 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"); - } -# if !defined(TN3270) - printf("Escape character is '%s'.\n", control(escape)); - (void) fflush(stdout); -# else /* !defined(TN3270) */ - if ((!In3270) && ((argc < 2) || strcmp(argv[1], "notmuch"))) { - printf("Escape character is '%s'.\n", control(escape)); - } -# if defined(unix) - if ((argc >= 2) && !strcmp(argv[1], "everything")) { - printf("SIGIO received %d time%s.\n", - sigiocount, (sigiocount == 1)? "":"s"); - if (In3270) { - printf("Process ID %d, process group %d.\n", - getpid(), getpgrp(getpid())); - printf("Terminal input:\n"); - filestuff(tin); - printf("Terminal output:\n"); - filestuff(tout); - printf("Network socket:\n"); - filestuff(net); - } - } - if (In3270 && transcom) { - printf("Transparent mode command is '%s'.\n", transcom); - } -# endif /* defined(unix) */ - (void) fflush(stdout); - if (In3270) { - return 0; - } -# endif /* defined(TN3270) */ - return 1; -} - -#ifdef SIGINFO -/* - * Function that gets called when SIGINFO is received. - */ -ayt_status() -{ - (void) call(status, "status", "notmuch", 0); -} -#endif - -unsigned long inet_addr(); - - int -tn(argc, argv) - int argc; - char *argv[]; -{ - register struct hostent *host = 0; - struct sockaddr_in sin; - struct servent *sp = 0; - unsigned long temp; - extern char *inet_ntoa(); -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - char *srp = 0, *strrchr(); - unsigned long sourceroute(), srlen; -#endif - char *cmd, *hostp = 0, *portp = 0, *user = 0; - - /* clear the socket address prior to use */ - bzero((char *)&sin, sizeof(sin)); - - 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 (isprefix(*argv, "help") || 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 (hostp == 0) { - hostp = *argv++; - --argc; - continue; - } - if (portp == 0) { - portp = *argv++; - --argc; - continue; - } - usage: - printf("usage: %s [-l user] [-a] host-name [port]\n", cmd); - setuid(getuid()); - return 0; - } - if (hostp == 0) - goto usage; - -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - if (hostp[0] == '@' || hostp[0] == '!') { - if ((hostname = strrchr(hostp, ':')) == NULL) - hostname = strrchr(hostp, '@'); - hostname++; - srp = 0; - temp = sourceroute(hostp, &srp, &srlen); - if (temp == 0) { - herror(srp); - setuid(getuid()); - return 0; - } else if (temp == -1) { - printf("Bad source route option: %s\n", hostp); - setuid(getuid()); - return 0; - } else { - sin.sin_addr.s_addr = temp; - sin.sin_family = AF_INET; - } - } else { -#endif - temp = inet_addr(hostp); - if (temp != (unsigned long) -1) { - sin.sin_addr.s_addr = temp; - sin.sin_family = AF_INET; - (void) strcpy(_hostname, hostp); - hostname = _hostname; - } else { - host = gethostbyname(hostp); - if (host) { - sin.sin_family = host->h_addrtype; -#if defined(h_addr) /* In 4.3, this is a #define */ - memcpy((caddr_t)&sin.sin_addr, - host->h_addr_list[0], host->h_length); -#else /* defined(h_addr) */ - memcpy((caddr_t)&sin.sin_addr, host->h_addr, host->h_length); -#endif /* defined(h_addr) */ - strncpy(_hostname, host->h_name, sizeof(_hostname)); - _hostname[sizeof(_hostname)-1] = '\0'; - hostname = _hostname; - } else { - herror(hostp); - setuid(getuid()); - return 0; - } - } -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - } -#endif - if (portp) { - if (*portp == '-') { - portp++; - telnetport = 1; - } else - telnetport = 0; - sin.sin_port = atoi(portp); - if (sin.sin_port == 0) { - sp = getservbyname(portp, "tcp"); - if (sp) - sin.sin_port = sp->s_port; - else { - printf("%s: bad port number\n", portp); - setuid(getuid()); - return 0; - } - } else { -#if !defined(htons) - u_short htons P((unsigned short)); -#endif /* !defined(htons) */ - sin.sin_port = htons(sin.sin_port); - } - } else { - if (sp == 0) { - sp = getservbyname("telnet", "tcp"); - if (sp == 0) { - fprintf(stderr, "telnet: tcp/telnet: unknown service\n"); - setuid(getuid()); - return 0; - } - sin.sin_port = sp->s_port; - } - telnetport = 1; - } - printf("Trying %s...\n", inet_ntoa(sin.sin_addr)); - do { - net = socket(AF_INET, SOCK_STREAM, 0); - setuid(getuid()); - if (net < 0) { - perror("telnet: socket"); - return 0; - } -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - if (srp && setsockopt(net, IPPROTO_IP, IP_OPTIONS, (char *)srp, srlen) < 0) - perror("setsockopt (IP_OPTIONS)"); -#endif -#if defined(IPPROTO_IP) && defined(IP_TOS) - { -# 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(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 (debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) { - perror("setsockopt (SO_DEBUG)"); - } - - if (connect(net, (struct sockaddr *)&sin, sizeof (sin)) < 0) { -#if defined(h_addr) /* In 4.3, this is a #define */ - if (host && host->h_addr_list[1]) { - int oerrno = errno; - - fprintf(stderr, "telnet: connect to address %s: ", - inet_ntoa(sin.sin_addr)); - errno = oerrno; - perror((char *)0); - host->h_addr_list++; - memcpy((caddr_t)&sin.sin_addr, - host->h_addr_list[0], host->h_length); - (void) NetClose(net); - continue; - } -#endif /* defined(h_addr) */ - perror("telnet: Unable to connect to remote host"); - return 0; - } - connected++; -#if defined(AUTHENTICATION) || defined(ENCRYPTION) - auth_encrypt_connect(connected); -#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ - } while (connected == 0); - cmdrc(hostp, hostname); - 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((unsigned char *)"USER", (unsigned char *)user); - env_export((unsigned char *)"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*/ -} - -#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", -#if defined(TN3270) && defined(unix) - transcomhelp[] = "specify Unix command for transparent mode pipe", -#endif /* defined(TN3270) && defined(unix) */ -#if defined(AUTHENTICATION) - authhelp[] = "turn on (off) authentication ('auth ?' for more)", -#endif -#ifdef ENCRYPTION - encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)", -#endif /* ENCRYPTION */ -#if defined(unix) - zhelp[] = "suspend telnet", -#endif /* defined(unix) */ - shellhelp[] = "invoke a subshell", - envhelp[] = "change environment variables ('environ ?' for more)", - modestring[] = "try to enter line or character mode ('mode ?' for more)"; - -static int help(); - -static Command cmdtab[] = { - { "close", closehelp, bye, 1 }, - { "logout", logouthelp, logout, 1 }, - { "display", displayhelp, display, 0 }, - { "mode", modestring, modecmd, 0 }, - { "open", openhelp, tn, 0 }, - { "quit", quithelp, 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 }, -#if defined(TN3270) && defined(unix) - { "transcom", transcomhelp, settranscom, 0 }, -#endif /* defined(TN3270) && defined(unix) */ -#if defined(AUTHENTICATION) - { "auth", authhelp, auth_cmd, 0 }, -#endif -#ifdef ENCRYPTION - { "encrypt", encrypthelp, encrypt_cmd, 0 }, -#endif /* ENCRYPTION */ -#if defined(unix) - { "z", zhelp, suspend, 0 }, -#endif /* defined(unix) */ -#if defined(TN3270) - { "!", shellhelp, shell, 1 }, -#else - { "!", shellhelp, shell, 0 }, -#endif - { "environ", envhelp, env_cmd, 0 }, - { "?", helphelp, help, 0 }, - 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, togcrmod, 0 }, - 0 -}; - - -/* - * Call routine with argc, argv set from args (terminated by 0). - */ - - /*VARARGS1*/ - static -call(va_alist) - va_dcl -{ - va_list ap; - typedef int (*intrtn_t)(); - intrtn_t routine; - char *args[100]; - int argno = 0; - - va_start(ap); - routine = (va_arg(ap, intrtn_t)); - while ((args[argno++] = va_arg(ap, char *)) != 0) { - ; - } - va_end(ap); - return (*routine)(argno-1, args); -} - - - static Command * -getcmd(name) - 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(top, tbuf, cnt) - int top; - char *tbuf; - int cnt; -{ - register Command *c; - - setcommandmode(); - if (!top) { - putchar('\n'); -#if defined(unix) - } else { - (void) signal(SIGINT, SIG_DFL); - (void) signal(SIGQUIT, SIG_DFL); -#endif /* defined(unix) */ - } - for (;;) { - if (rlogin == _POSIX_VDISABLE) - printf("%s> ", prompt); - if (tbuf) { - register 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(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*/ - } -#if defined(TN3270) - if (shell_active == 0) { - setconnmode(0); - } -#else /* defined(TN3270) */ - setconnmode(0); -#endif /* defined(TN3270) */ - } -} - -/* - * Help command. - */ - static -help(argc, argv) - int argc; - char *argv[]; -{ - register 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", HELPINDENT, c->name, - c->help); - } - return 0; - } - while (--argc > 0) { - register char *arg; - arg = *++argv; - c = getcmd(arg); - if (Ambiguous(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]; - -cmdrc(m1, m2) - char *m1, *m2; -{ - register Command *c; - FILE *rcfile; - int gotmachine = 0; - int l1 = strlen(m1); - int l2 = strlen(m2); - char m1save[64]; - - if (skiprc) - return; - - strcpy(m1save, m1); - m1 = m1save; - - if (rcname == 0) { - rcname = getenv("HOME"); - if (rcname) - 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(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); -} - -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - -/* - * 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: - * 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. - * - * Return values: - * - * Returns the address of the host to connect to. 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. - * - */ - unsigned long -sourceroute(arg, cpp, lenp) - char *arg; - char **cpp; - int *lenp; -{ - static char lsr[44]; -#ifdef sysV88 - static IOPTN ipopt; -#endif - char *cp, *cp2, *lsrp, *lsrep; - register int tmp; - struct in_addr sin_addr; - register struct hostent *host = 0; - register char c; - - /* - * Verify the arguments, and make sure we have - * at least 7 bytes for the option. - */ - if (cpp == NULL || lenp == NULL) - return((unsigned long)-1); - if (*cpp != NULL && *lenp < 7) - return((unsigned long)-1); - /* - * Decide whether we have a buffer passed to us, - * or if we need to use our own static buffer. - */ - if (*cpp) { - lsrp = *cpp; - lsrep = lsrp + *lenp; - } else { - *cpp = lsrp = lsr; - lsrep = lsrp + 44; - } - - cp = arg; - - /* - * Next, decide whether we have a loose source - * route or a strict source route, and fill in - * the begining of the option. - */ -#ifndef sysV88 - if (*cp == '!') { - cp++; - *lsrp++ = IPOPT_SSRR; - } else - *lsrp++ = IPOPT_LSRR; -#else - if (*cp == '!') { - cp++; - ipopt.io_type = IPOPT_SSRR; - } else - ipopt.io_type = IPOPT_LSRR; -#endif - - if (*cp != '@') - return((unsigned long)-1); - -#ifndef sysV88 - lsrp++; /* skip over length, we'll fill it in later */ - *lsrp++ = 4; -#endif - - cp++; - - sin_addr.s_addr = 0; - - for (c = 0;;) { - if (c == ':') - cp2 = 0; - else for (cp2 = cp; c = *cp2; cp2++) { - if (c == ',') { - *cp2++ = '\0'; - if (*cp2 == '@') - cp2++; - } else if (c == '@') { - *cp2++ = '\0'; - } else if (c == ':') { - *cp2++ = '\0'; - } else - continue; - break; - } - if (!c) - cp2 = 0; - - if ((tmp = inet_addr(cp)) != -1) { - sin_addr.s_addr = tmp; - } else if (host = gethostbyname(cp)) { -#if defined(h_addr) - memcpy((caddr_t)&sin_addr, - host->h_addr_list[0], host->h_length); -#else - memcpy((caddr_t)&sin_addr, host->h_addr, host->h_length); -#endif - } else { - *cpp = cp; - return(0); - } - memcpy(lsrp, (char *)&sin_addr, 4); - lsrp += 4; - if (cp2) - cp = cp2; - else - break; - /* - * Check to make sure there is space for next address - */ - if (lsrp + 4 > lsrep) - return((unsigned long)-1); - } -#ifndef sysV88 - if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) { - *cpp = 0; - *lenp = 0; - return((unsigned long)-1); - } - *lsrp++ = IPOPT_NOP; /* 32 bit word align it */ - *lenp = lsrp - *cpp; -#else - ipopt.io_len = lsrp - *cpp; - if (ipopt.io_len <= 5) { /* Is 3 better ? */ - *cpp = 0; - *lenp = 0; - return((unsigned long)-1); - } - *lenp = sizeof(ipopt); - *cpp = (char *) &ipopt; -#endif - return(sin_addr.s_addr); -} -#endif |