diff options
Diffstat (limited to 'libexec/getty')
| -rw-r--r-- | libexec/getty/Makefile | 12 | ||||
| -rw-r--r-- | libexec/getty/Makefile.depend | 16 | ||||
| -rw-r--r-- | libexec/getty/chat.c | 485 | ||||
| -rw-r--r-- | libexec/getty/extern.h | 56 | ||||
| -rw-r--r-- | libexec/getty/getty.8 | 122 | ||||
| -rw-r--r-- | libexec/getty/gettytab | 236 | ||||
| -rw-r--r-- | libexec/getty/gettytab.5 | 515 | ||||
| -rw-r--r-- | libexec/getty/gettytab.h | 173 | ||||
| -rw-r--r-- | libexec/getty/init.c | 148 | ||||
| -rw-r--r-- | libexec/getty/main.c | 806 | ||||
| -rw-r--r-- | libexec/getty/pathnames.h | 35 | ||||
| -rw-r--r-- | libexec/getty/subr.c | 676 | ||||
| -rw-r--r-- | libexec/getty/ttys.5 | 177 |
13 files changed, 3457 insertions, 0 deletions
diff --git a/libexec/getty/Makefile b/libexec/getty/Makefile new file mode 100644 index 000000000000..18668bee6aa0 --- /dev/null +++ b/libexec/getty/Makefile @@ -0,0 +1,12 @@ +PACKAGE= runtime + +CONFS= gettytab +PROG= getty +SRCS= main.c init.c subr.c chat.c +LIBADD= util +MAN= gettytab.5 ttys.5 getty.8 + +WFORMAT=0 + +.include <bsd.prog.mk> + diff --git a/libexec/getty/Makefile.depend b/libexec/getty/Makefile.depend new file mode 100644 index 000000000000..678747db6f2c --- /dev/null +++ b/libexec/getty/Makefile.depend @@ -0,0 +1,16 @@ +# Autogenerated - do NOT edit! + +DIRDEPS = \ + include \ + include/xlocale \ + lib/${CSU_DIR} \ + lib/libc \ + lib/libcompiler_rt \ + lib/libutil \ + + +.include <dirdeps.mk> + +.if ${DEP_RELDIR} == ${_DEP_RELDIR} +# local dependencies - needed for -jN in clean tree +.endif diff --git a/libexec/getty/chat.c b/libexec/getty/chat.c new file mode 100644 index 000000000000..f1fa6f504b85 --- /dev/null +++ b/libexec/getty/chat.c @@ -0,0 +1,485 @@ +/*- + * Copyright (c) 1997 + * David L Nugent <davidn@blaze.net.au>. + * All rights reserved. + * + * + * Redistribution and use in source and binary forms, with or without + * modification, is permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice immediately at the beginning of the file, without modification, + * 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. This work was done expressly for inclusion into FreeBSD. Other use + * is permitted provided this notation is included. + * 4. Absolutely no warranty of function or purpose is made by the authors. + * 5. Modifications may be freely made to this file providing the above + * conditions are met. + * + * Modem chat module - send/expect style functions for getty + * For semi-intelligent modem handling. + */ + +#include <sys/types.h> +#include <sys/ioctl.h> +#include <sys/utsname.h> + +#include <ctype.h> +#include <signal.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> +#include <unistd.h> + +#include "gettytab.h" +#include "extern.h" + +#define PAUSE_CH (unsigned char)'\xff' /* pause kludge */ + +#define CHATDEBUG_RECEIVE 0x01 +#define CHATDEBUG_SEND 0x02 +#define CHATDEBUG_EXPECT 0x04 +#define CHATDEBUG_MISC 0x08 + +#define CHATDEBUG_DEFAULT 0 +#define CHAT_DEFAULT_TIMEOUT 10 + + +static int chat_debug = CHATDEBUG_DEFAULT; +static int chat_alarm = CHAT_DEFAULT_TIMEOUT; /* Default */ + +static volatile int alarmed = 0; + + +static void chat_alrm(int); +static int chat_unalarm(void); +static int getdigit(char **, int, int); +static char **read_chat(char **); +static char *cleanchr(char **, unsigned char); +static const char *cleanstr(const char *, int); +static const char *result(int); +static int chat_expect(const char *); +static int chat_send(char const *); + + +/* + * alarm signal handler + * handle timeouts in read/write + * change stdin to non-blocking mode to prevent + * possible hang in read(). + */ + +static void +chat_alrm(int signo __unused) +{ + int on = 1; + + alarm(1); + alarmed = 1; + signal(SIGALRM, chat_alrm); + ioctl(STDIN_FILENO, FIONBIO, &on); +} + + +/* + * Turn back on blocking mode reset by chat_alrm() + */ + +static int +chat_unalarm(void) +{ + int off = 0; + return ioctl(STDIN_FILENO, FIONBIO, &off); +} + + +/* + * convert a string of a given base (octal/hex) to binary + */ + +static int +getdigit(char **ptr, int base, int max) +{ + int i, val = 0; + char * q; + + static const char xdigits[] = "0123456789abcdef"; + + for (i = 0, q = *ptr; i++ < max; ++q) { + int sval; + const char * s = strchr(xdigits, tolower(*q)); + + if (s == NULL || (sval = s - xdigits) >= base) + break; + val = (val * base) + sval; + } + *ptr = q; + return val; +} + + +/* + * read_chat() + * Convert a whitespace delimtied string into an array + * of strings, being expect/send pairs + */ + +static char ** +read_chat(char **chatstr) +{ + char *str = *chatstr; + char **res = NULL; + + if (str != NULL) { + char *tmp = NULL; + int l; + + if ((l=strlen(str)) > 0 && (tmp=malloc(l + 1)) != NULL && + (res=malloc(((l + 1) / 2 + 1) * sizeof(char *))) != NULL) { + static char ws[] = " \t"; + char * p; + + for (l = 0, p = strtok(strcpy(tmp, str), ws); + p != NULL; + p = strtok(NULL, ws)) + { + char *q, *r; + + /* Read escapes */ + for (q = r = p; *r; ++q) + { + if (*q == '\\') + { + /* handle special escapes */ + switch (*++q) + { + case 'a': /* bell */ + *r++ = '\a'; + break; + case 'r': /* cr */ + *r++ = '\r'; + break; + case 'n': /* nl */ + *r++ = '\n'; + break; + case 'f': /* ff */ + *r++ = '\f'; + break; + case 'b': /* bs */ + *r++ = '\b'; + break; + case 'e': /* esc */ + *r++ = 27; + break; + case 't': /* tab */ + *r++ = '\t'; + break; + case 'p': /* pause */ + *r++ = PAUSE_CH; + break; + case 's': + case 'S': /* space */ + *r++ = ' '; + break; + case 'x': /* hexdigit */ + ++q; + *r++ = getdigit(&q, 16, 2); + --q; + break; + case '0': /* octal */ + ++q; + *r++ = getdigit(&q, 8, 3); + --q; + break; + default: /* literal */ + *r++ = *q; + break; + case 0: /* not past eos */ + --q; + break; + } + } else { + /* copy standard character */ + *r++ = *q; + } + } + + /* Remove surrounding quotes, if any + */ + if (*p == '"' || *p == '\'') { + q = strrchr(p+1, *p); + if (q != NULL && *q == *p && q[1] == '\0') { + *q = '\0'; + p++; + } + } + + res[l++] = p; + } + res[l] = NULL; + *chatstr = tmp; + return res; + } + free(tmp); + } + return res; +} + + +/* + * clean a character for display (ctrl/meta character) + */ + +static char * +cleanchr(char **buf, unsigned char ch) +{ + int l; + static char tmpbuf[5]; + char * tmp = buf ? *buf : tmpbuf; + + if (ch & 0x80) { + strcpy(tmp, "M-"); + l = 2; + ch &= 0x7f; + } else + l = 0; + + if (ch < 32) { + tmp[l++] = '^'; + tmp[l++] = ch + '@'; + } else if (ch == 127) { + tmp[l++] = '^'; + tmp[l++] = '?'; + } else + tmp[l++] = ch; + tmp[l] = '\0'; + + if (buf) + *buf = tmp + l; + return tmp; +} + + +/* + * clean a string for display (ctrl/meta characters) + */ + +static const char * +cleanstr(const char *s, int l) +{ + static char * tmp = NULL; + static int tmplen = 0; + + if (tmplen < l * 4 + 1) + tmp = realloc(tmp, tmplen = l * 4 + 1); + + if (tmp == NULL) { + tmplen = 0; + return "(mem alloc error)"; + } else { + int i = 0; + char * p = tmp; + + while (i < l) + cleanchr(&p, s[i++]); + *p = '\0'; + } + + return tmp; +} + + +/* + * return result as a pseudo-english word + */ + +static const char * +result(int r) +{ + static const char * results[] = { + "OK", "MEMERROR", "IOERROR", "TIMEOUT" + }; + return results[r & 3]; +} + + +/* + * chat_expect() + * scan input for an expected string + */ + +static int +chat_expect(const char *str) +{ + int len, r = 0; + + if (chat_debug & CHATDEBUG_EXPECT) + syslog(LOG_DEBUG, "chat_expect '%s'", cleanstr(str, strlen(str))); + + if ((len = strlen(str)) > 0) { + int i = 0; + char * got; + + if ((got = malloc(len + 1)) == NULL) + r = 1; + else { + + memset(got, 0, len+1); + alarm(chat_alarm); + alarmed = 0; + + while (r == 0 && i < len) { + if (alarmed) + r = 3; + else { + unsigned char ch; + + if (read(STDIN_FILENO, &ch, 1) == 1) { + + if (chat_debug & CHATDEBUG_RECEIVE) + syslog(LOG_DEBUG, "chat_recv '%s' m=%d", + cleanchr(NULL, ch), i); + + if (ch == str[i]) + got[i++] = ch; + else if (i > 0) { + int j = 1; + + /* See if we can resync on a + * partial match in our buffer + */ + while (j < i && memcmp(got + j, str, i - j) != 0) + j++; + if (j < i) + memcpy(got, got + j, i - j); + i -= j; + } + } else + r = alarmed ? 3 : 2; + } + } + alarm(0); + chat_unalarm(); + alarmed = 0; + free(got); + } + } + + if (chat_debug & CHATDEBUG_EXPECT) + syslog(LOG_DEBUG, "chat_expect %s", result(r)); + + return r; +} + + +/* + * chat_send() + * send a chat string + */ + +static int +chat_send(char const *str) +{ + int r = 0; + + if (chat_debug & CHATDEBUG_SEND) + syslog(LOG_DEBUG, "chat_send '%s'", cleanstr(str, strlen(str))); + + if (*str) { + alarm(chat_alarm); + alarmed = 0; + while (r == 0 && *str) + { + unsigned char ch = (unsigned char)*str++; + + if (alarmed) + r = 3; + else if (ch == PAUSE_CH) + usleep(500000); /* 1/2 second */ + else { + usleep(10000); /* be kind to modem */ + if (write(STDOUT_FILENO, &ch, 1) != 1) + r = alarmed ? 3 : 2; + } + } + alarm(0); + chat_unalarm(); + alarmed = 0; + } + + if (chat_debug & CHATDEBUG_SEND) + syslog(LOG_DEBUG, "chat_send %s", result(r)); + + return r; +} + + +/* + * getty_chat() + * + * Termination codes: + * -1 - no script supplied + * 0 - script terminated correctly + * 1 - invalid argument, expect string too large, etc. + * 2 - error on an I/O operation or fatal error condition + * 3 - timeout waiting for a simple string + * + * Parameters: + * char *scrstr - unparsed chat script + * timeout - seconds timeout + * debug - debug value (bitmask) + */ + +int +getty_chat(char *scrstr, int timeout, int debug) +{ + int r = -1; + + chat_alarm = timeout ? timeout : CHAT_DEFAULT_TIMEOUT; + chat_debug = debug; + + if (scrstr != NULL) { + char **script; + + if (chat_debug & CHATDEBUG_MISC) + syslog(LOG_DEBUG, "getty_chat script='%s'", scrstr); + + if ((script = read_chat(&scrstr)) != NULL) { + int i = r = 0; + int off = 0; + sig_t old_alarm; + + /* + * We need to be in raw mode for all this + * Rely on caller... + */ + + old_alarm = signal(SIGALRM, chat_alrm); + chat_unalarm(); /* Force blocking mode at start */ + + /* + * This is the send/expect loop + */ + while (r == 0 && script[i] != NULL) + if ((r = chat_expect(script[i++])) == 0 && script[i] != NULL) + r = chat_send(script[i++]); + + signal(SIGALRM, old_alarm); + free(script); + free(scrstr); + + /* + * Ensure stdin is in blocking mode + */ + ioctl(STDIN_FILENO, FIONBIO, &off); + } + + if (chat_debug & CHATDEBUG_MISC) + syslog(LOG_DEBUG, "getty_chat %s", result(r)); + + } + return r; +} diff --git a/libexec/getty/extern.h b/libexec/getty/extern.h new file mode 100644 index 000000000000..386eef5d16a3 --- /dev/null +++ b/libexec/getty/extern.h @@ -0,0 +1,56 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 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. 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. + */ + +struct delayval; +struct termios; + +extern char **environ; +extern char editedhost[]; +extern char hostname[]; +extern struct termios tmode, omode; +extern struct gettyflags gettyflags[]; +extern struct gettynums gettynums[]; +extern struct gettystrs gettystrs[]; + +int adelay(int, struct delayval *); +const char *autobaud(void); +int delaybits(void); +void edithost(const char *); +void gendefaults(void); +void gettable(const char *); +void makeenv(char *[]); +const char *portselector(void); +void set_ttydefaults(int); +void setchars(void); +void setdefaults(void); +void set_flags(int); +int speed(int); +int getty_chat(char *, int, int); diff --git a/libexec/getty/getty.8 b/libexec/getty/getty.8 new file mode 100644 index 000000000000..baed4b861a8d --- /dev/null +++ b/libexec/getty/getty.8 @@ -0,0 +1,122 @@ +.\" Copyright (c) 1980, 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. 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. +.\" " +.Dd July 21, 2020 +.Dt GETTY 8 +.Os +.Sh NAME +.Nm getty +.Nd set terminal mode +.Sh SYNOPSIS +.Nm +.Oo +.Ar type +.Op Ar tty +.Oc +.Sh DESCRIPTION +The +.Nm +utility is called by +.Xr init 8 +to open and initialize the tty line, read a login name, and invoke +.Xr login 1 . +.Pp +The argument +.Ar tty +is the special device file in +.Pa /dev +to open for the terminal (for example, ``ttyh0''). +If there is no argument or the argument is +.Sq Fl , +the tty line is assumed to be open as file descriptor 0. +.Pp +The +.Ar type +argument can be used to make +.Nm +treat the terminal line specially. +This argument is used as an index into the +.Xr gettytab 5 +database, to determine the characteristics of the line. +If there is no argument, or there is no such table, the +.Em default +table is used. +If there is no +.Pa /etc/gettytab +a set of system defaults is used. +If indicated by the table located, +.Nm +will clear the terminal screen, +print a banner heading, +and prompt for a login name. +Usually either the banner or the login prompt will include +the system hostname. +.Pp +Most of the default actions of +.Nm +can be circumvented, or modified, by a suitable +.Pa gettytab +table. +.Pp +The +.Nm +utility can be set to timeout after some interval, +which will cause dial up lines to hang up +if the login name is not entered reasonably quickly. +.Sh FILES +.Bl -tag -width /etc/gettytab -compact +.It Pa /etc/gettytab +.It Pa /etc/ttys +.El +.Sh DIAGNOSTICS +.Bl -diag +.It "ttyxx: No such device or address." +.It "ttyxx: No such file or address." +.Pp +A terminal which is turned +on in the +.Pa ttys +file cannot be opened, likely because the requisite +lines are either not configured into the system, the associated device +was not attached during boot-time system configuration, +or the special file in +.Pa /dev +does not exist. +.El +.Sh SEE ALSO +.Xr login 1 , +.Xr ioctl 2 , +.Xr tty 4 , +.Xr gettytab 5 , +.Xr ttys 5 , +.Xr init 8 , +.Xr pstat 8 +.Sh HISTORY +A +.Nm +utility appeared in +.At v3 . diff --git a/libexec/getty/gettytab b/libexec/getty/gettytab new file mode 100644 index 000000000000..c2a8d9dc5fad --- /dev/null +++ b/libexec/getty/gettytab @@ -0,0 +1,236 @@ +# Most of the table entries here are just copies of the old getty table, +# it is by no means certain, or even likely, that any of them are optimal +# for any purpose whatever. Nor is it likely that more than a couple are +# even correct. +# +# The default gettytab entry, used to set defaults for all other +# entries, and in cases where getty is called with no table name. +# +# cb, ce and ck are desirable on most crt's. The non-crt entries need to +# be changed to turn them off (:cb@:ce@:ck@:). +# +# lc should always be on; it's a remainder of some stone age when there +# have been terminals around not being able of handling lower-case +# characters. Those terminals aren't supported any longer, but getty is +# `smart' about them by default. +# +# Parity defaults to even, but the Pc entry and all the `std' entries +# specify no parity. The different parities are: +# (none): same as ep for getty. login will use terminal as is. +# ep: getty will use raw mode (cs8 -parenb) (unless rw is set) and +# fake parity. login will use even parity (cs7 parenb -parodd). +# op: same as ep except odd parity (cs7 parenb parodd) for login. +# getty will fake odd parity as well. +# ap: same as ep except -inpck instead of inpck for login. +# ap overrides op and ep. +# np: 1. don't fake parity in getty. The fake parity garbles +# characters on non-terminals (like pccons) that don't +# support parity. It would probably better for getty not to +# try to fake parity. It could just use cbreak mode so as +# not to force cs8 and let the hardware handle the parity. +# login has to be rely on the hardware anyway. +# 2. set cs8 -parenb -istrip -inpck. +# ep:op: same as ap. +# +default:\ + :cb:ce:ck:lc:fd#1000:im=\r\n%s/%m (%h) (%t)\r\n\r\n:sp#1200:\ + :if=/etc/issue: + +# +# Fixed speed entries +# +# The "std.NNN" names are known to the special case +# portselector code in getty, however they can +# be assigned to any table desired. +# The "NNN-baud" names are known to the special case +# autobaud code in getty, and likewise can +# be assigned to any table desired (hopefully the same speed). +# +std:\ + :np:sp#0: +a|std.110|110-baud:\ + :np:nd#1:cd#1:uc:sp#110: +b|std.134|134.5-baud:\ + :np:nd#1:cd#2:ff#1:td#1:sp#134:ht:nl: +1|std.150|150-baud:\ + :np:nd#1:cd#2:td#1:fd#1:sp#150:ht:nl:lm=\E\72\6\6\17login\72 : +c|std.300|300-baud:\ + :np:nd#1:cd#1:sp#300: +d|std.600|600-baud:\ + :np:nd#1:cd#1:sp#600: +f|std.1200|1200-baud:\ + :np:fd#1:sp#1200: +6|std.2400|2400-baud:\ + :np:sp#2400: +7|std.4800|4800-baud:\ + :np:sp#4800: +2|std.9600|9600-baud:\ + :np:sp#9600: +g|std.19200|19200-baud:\ + :np:sp#19200: +std.38400|38400-baud:\ + :np:sp#38400: +std.57600|57600-baud:\ + :np:sp#57600: +std.115200|115200-baud:\ + :np:sp#115200: +std.230400|230400-baud:\ + :np:sp#230400: + +# +# Entry specifying explicit device settings. See termios(4) and +# /usr/include/termios.h, too. The entry forces the tty into +# CLOCAL mode (so no DCD is required), and uses Xon/Xoff flow control. +# +# cflags: CLOCAL | HUPCL | CREAD | CS8 +# oflags: OPOST | ONLCR | OXTABS +# iflags: IXOFF | IXON | ICRNL | IGNPAR +# lflags: IEXTEN | ICANON | ISIG | ECHOCTL | ECHO | ECHOK | ECHOE | ECHOKE +# +# The `0' flags don't have input enabled. The `1' flags don't echo. +# (Echoing is done inside getty itself.) +# +local.9600|CLOCAL tty @ 9600 Bd:\ + :c0#0x0000c300:c1#0x0000cb00:c2#0x0000cb00:\ + :o0#0x00000007:o1#0x00000002:o2#0x00000007:\ + :i0#0x00000704:i1#0x00000000:i2#0x00000704:\ + :l0#0x000005cf:l1#0x00000000:l2#0x000005cf:\ + :sp#9600:np: + +# +# Dial in rotary tables, speed selection via 'break' +# +0|d300|Dial-300:\ + :nx=d1200:cd#2:sp#300: +d1200|Dial-1200:\ + :nx=d150:fd#1:sp#1200: +d150|Dial-150:\ + :nx=d110:lm@:tc=150-baud: +d110|Dial-110:\ + :nx=d300:tc=300-baud: + +# +# Fast dialup terminals, 2400/1200/300 rotary (can start either way) +# +D2400|d2400|Fast-Dial-2400:\ + :nx=D1200:tc=2400-baud: +3|D1200|Fast-Dial-1200:\ + :nx=D300:tc=1200-baud: +5|D300|Fast-Dial-300:\ + :nx=D2400:tc=300-baud: + +# +#telebit (19200) +# +t19200:\ + :nx=t2400:tc=19200-baud: +t2400:\ + :nx=t1200:tc=2400-baud: +t1200:\ + :nx=t19200:tc=1200-baud: + +# +#telebit (9600) +# +t9600:\ + :nx=t2400a:tc=9600-baud: +t2400a:\ + :nx=t1200a:tc=2400-baud: +t1200a:\ + :nx=t9600:tc=1200-baud: + +# +# Odd special case terminals +# +-|tty33|asr33|Pity the poor user of this beast:\ + :tc=110-baud: + +4|Console|Console Decwriter II:\ + :nd@:cd@:rw:tc=300-baud: + +e|Console-1200|Console Decwriter III:\ + :fd@:nd@:cd@:rw:tc=1200-baud: + +i|Interdata console:\ + :uc:sp#0: + +l|lsi chess terminal:\ + :sp#300: + +X|Xwindow|X window system:\ + :fd@:nd@:cd@:rw:sp#9600: + +P|Pc|Pc console:\ + :ht:np:sp#9600: + +# +# Weirdo special case for fast crt's with hardcopy devices +# +8|T9600|CRT with hardcopy:\ + :nx=T300:tc=9600-baud: +9|T300|CRT with hardcopy (300):\ + :nx=T9600:tc=300-baud: + +# +# Plugboard, and misc other terminals +# +plug-9600|Plugboard-9600:\ + :pf#1:tc=9600-baud: +p|P9600|Plugboard-9600-rotary:\ + :pf#1:nx=P300:tc=9600-baud: +q|P300|Plugboard-300:\ + :pf#1:nx=P1200:tc=300-baud: +r|P1200|Plugboard-1200:\ + :pf#1:nx=P9600:tc=1200-baud: + +# +# XXXX Port selector +# +s|DSW|Port Selector:\ + :ps:sp#2400: + +# +# Auto-baud speed detect entry for Micom 600. +# Special code in getty will switch this out +# to one of the NNN-baud entries. +# +A|Auto-baud:\ + :ab:sp#2400:f0#040: + +# +# autologin - automatically log in as root +# + +autologin|al.9600:\ + :al=root:tc=std.9600: +al.19200:\ + :al=root:tc=std.19200: +al.38400:\ + :al=root:tc=std.38400: +al.57600:\ + :al=root:tc=std.57600: +al.115200:\ + :al=root:tc=std.115200: +al.230400:\ + :al=root:tc=std.230400: +al.Pc:\ + :al=root:tc=Pc + +# +# Entries for 3-wire serial terminals. These don't supply carrier, so +# clocal needs to be set, and crtscts needs to be unset. +# +3wire:\ + :np:nc:sp#0: +3wire.9600|9600-3wire:\ + :np:nc:sp#9600: +3wire.19200|19200-3wire:\ + :np:nc:sp#19200: +3wire.38400|38400-3wire:\ + :np:nc:sp#38400: +3wire.57600|57600-3wire:\ + :np:nc:sp#57600: +3wire.115200|115200-3wire:\ + :np:nc:sp#115200: +3wire.230400|230400-3wire:\ + :np:nc:sp#230400: diff --git a/libexec/getty/gettytab.5 b/libexec/getty/gettytab.5 new file mode 100644 index 000000000000..1fb769efebc1 --- /dev/null +++ b/libexec/getty/gettytab.5 @@ -0,0 +1,515 @@ +.\" Copyright (c) 1983, 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. 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. +.\" " +.Dd September 29, 2022 +.Dt GETTYTAB 5 +.Os +.Sh NAME +.Nm gettytab +.Nd terminal configuration data base +.Sh SYNOPSIS +.Nm +.Sh DESCRIPTION +The +.Nm +file +is a simplified version of the +.Xr termcap 5 +data base +used to describe terminal lines. +The initial terminal login process +.Xr getty 8 +accesses the +.Nm +file each time it starts, allowing simpler +reconfiguration of terminal characteristics. +Each entry in the data base +is used to describe one class of terminals. +.Pp +There is a default terminal class, +.Va default , +that is used to set global defaults for all other classes. +(That is, the +.Va default +entry is read, then the entry for the class required +is used to override particular settings.) +.Sh CAPABILITIES +Refer to +.Xr termcap 5 +for a description of the file layout. +The +.Va default +column below lists defaults obtained if there is +no entry in the table obtained, nor one in the special +.Va default +table. +.Bl -column Name Type /usr/bin/login +.It Sy "Name Type Default Description" +.It "ac str unused expect-send chat script for modem answer" +.It "al str unused user to auto-login instead of prompting" +.It "ap bool false terminal uses any parity" +.It "bk str 0377 alternate end of line character (input break)" +.It "c0 num unused tty control flags to write messages" +.It "c1 num unused tty control flags to read login name" +.It "c2 num unused tty control flags to leave terminal as" +.It "ce bool false use crt erase algorithm" +.It "ck bool false use crt kill algorithm" +.It "cl str" Ta Dv NULL +.Ta No "screen clear sequence" +.It "co bool false console - add" +.Ql \en +after login prompt +.It "ct num 10 chat timeout for" +.Va \&ac +and +.Va \&ic +scripts +.It "dc num 0 chat debug bitmask" +.It "de num 0 delay secs and flush input before writing first prompt" +.It "df str %+ the" Xr strftime 3 "format used for \&%d in the banner message" +.It "ds str" Ta So Li ^Y +.Sc Ta No "delayed suspend character" +.It "dx bool false set" +.Dv DECCTLQ +.It "ec bool false leave echo" +.Em OFF +.It "ep bool false terminal uses even parity" +.It "er str" Ta So Li ^? +.Sc Ta No "erase character" +.It "et str" Ta So Li ^D +.Sc Ta No "end of text" +.Pq Dv EOF +character +.It "ev str" Ta Dv NULL +.Ta No "initial environment" +.It "fl str" Ta So Li ^O +.Sc Ta No "output flush character" +.It "hc bool false do" +.Em NOT +hangup line on last close +.It "he str" Ta Dv NULL +.Ta No "hostname editing regular expression" +.It "hn str hostname hostname" +.It "ht bool false terminal has real tabs" +.It "hw bool false do cts/rts hardware flow control" +.It "i0 num unused tty input flags to write messages" +.It "i1 num unused tty input flags to read login name" +.It "i2 num unused tty input flags to leave terminal as" +.It "ic str unused expect-send chat script for modem initialization" +.It "if str unused display named file before prompt, like /etc/issue" +.It "ig bool false ignore garbage characters in login name" +.It "im str" Ta Dv NULL +.Ta No "initial (banner) message" +.It "iM str" Ta Dv NULL +.Ta No "execute named file to generate initial (banner) message" +.It "in str" Ta So Li ^C +.Sc Ta No "interrupt character" +.It "is num unused input speed" +.It "kl str" Ta So Li ^U +.Sc Ta No "kill character" +.It "l0 num unused tty local flags to write messages" +.It "l1 num unused tty local flags to read login name" +.It "l2 num unused tty local flags to leave terminal as" +.It "lm str login: login prompt" +.It "ln str" Ta So Li ^V +.Sc Ta No "``literal next'' character" +.It "lo str" Ta Pa /usr/bin/login +.Ta No "program to exec when name obtained" +.It "mb bool false do flow control based on carrier" +.It "nc bool false terminal does not supply carrier (set clocal)" +.It "nl bool false terminal has (or might have) a newline character" +.It "np bool false terminal uses no parity (i.e., 8-bit characters)" +.It "nx str default next table (for auto speed selection)" +.It "o0 num unused tty output flags to write messages" +.It "o1 num unused tty output flags to read login name" +.It "o2 num unused tty output flags to leave terminal as" +.It "op bool false terminal uses odd parity" +.It "os num unused output speed" +.It "pc str" Ta So Li \e0 +.Sc Ta No "pad character" +.It "pe bool false use printer (hard copy) erase algorithm" +.It "pf num 0 delay" +between first prompt and following flush (seconds) +.It "pl bool false start PPP login program unconditionally if" +.Va \&pp +is specified +.It "pp str unused PPP login program" +.It "ps bool false line connected to a" +.Tn MICOM +port selector +.It "qu str" Ta So Li \&^\e +.Sc Ta No "quit character" +.It "rp str" Ta So Li ^R +.Sc Ta No "line retype character" +.It "rt num unused ring timeout when using" +.Va \&ac +.It "rw bool false do" +.Em NOT +use raw for input, use cbreak +.It "sp num unused line speed (input and output)" +.It "su str" Ta So Li ^Z +.Sc Ta No "suspend character" +.It "tc str none table continuation" +.It "to num 0 timeout (seconds)" +.It "tt str" Ta Dv NULL +.Ta No "terminal type (for environment)" +.It "ub bool false do unbuffered output (of prompts etc)" +.It "we str" Ta So Li ^W +.Sc Ta No "word erase character" +.It "xc bool false do" +.Em NOT +echo control chars as +.Ql ^X +.It "xf str" Ta So Li ^S Sc Ta Dv XOFF +(stop output) character +.It "xn str" Ta So Li ^Q Sc Ta Dv XON +(start output) character +.It "Lo str C the locale name used for \&%d in the banner message" +.El +.Pp +The following capabilities are no longer supported by +.Xr getty 8 : +.Bl -column Name Type /usr/bin/login +.It "bd num 0 backspace delay" +.It "cb bool false use crt backspace mode" +.It "cd num 0 carriage-return delay" +.It "f0 num unused tty mode flags to write messages" +.It "f1 num unused tty mode flags to read login name" +.It "f2 num unused tty mode flags to leave terminal as" +.It "fd num 0 form-feed (vertical motion) delay" +.It "lc bool false terminal has lower case" +.It "nd num 0 newline (line-feed) delay" +.It "uc bool false terminal is known upper case only" +.El +.Pp +If no line speed is specified, speed will not be altered +from that which prevails when getty is entered. +Specifying an input or output speed will override +line speed for stated direction only. +.Pp +Terminal modes to be used for the output of the message, +for input of the login name, +and to leave the terminal set as upon completion, +are derived from the boolean flags specified. +If the derivation should prove inadequate, +any (or all) of these three may be overridden +with one of the +.Va \&c0 , +.Va \&c1 , +.Va \&c2 , +.Va \&i0 , +.Va \&i1 , +.Va \&i2 , +.Va \&l0 , +.Va \&l1 , +.Va \&l2 , +.Va \&o0 , +.Va \&o1 , +or +.Va \&o2 +numeric specifications, which can be used to specify +(usually in octal, with a leading '0') +the exact values of the flags. +These flags correspond to the termios +.Va c_cflag , +.Va c_iflag , +.Va c_lflag , +and +.Va c_oflag +fields, respectively. +Each these sets must be completely specified to be effective. +.Pp +Should +.Xr getty 8 +receive a null character +(presumed to indicate a line break) +it will restart using the table indicated by the +.Va \&nx +entry. +If there is none, it will re-use its original table. +.Pp +Delays are specified in milliseconds, the nearest possible +delay available in the tty driver will be used. +Should greater certainty be desired, delays +with values 0, 1, 2, and 3 are interpreted as +choosing that particular delay algorithm from the driver. +.Pp +The +.Va \&cl +screen clear string may be preceded by a (decimal) number +of milliseconds of delay required (a la termcap). +This delay is simulated by repeated use of the pad character +.Va \&pc . +.Pp +The initial message, login message, and initial file; +.Va \&im , +.Va \&lm +and +.Va \&if +may include any of the following character sequences, which expand to +information about the environment in which +.Xr getty 8 +is running. +.Bl -tag -offset indent -width \&%xxxxxxxxxxxxxx +.It \&%d +The current date and time formatted according to the +.Va \&Lo +and +.Va \&df +strings. +.It \&%h +The hostname of the machine, which is normally obtained from the +system using +.Xr gethostname 3 , +but may also be overridden by the +.Va \&hn +table entry. +In either case it may be edited with the +.Va \&he +POSIX +.Dq extended +regular expression, which is matched against the hostname. +If there are no parenthesized subexpressions in the pattern, +the entire matched string is used as the final hostname; +otherwise, the first matched subexpression is used instead. +If the pattern does not match, the original hostname is not modified. +.It \&%t +The tty name. +.It "\&%m, \&%r, \&%s, \&%v" +The type of machine, release of the operating system, name of the +operating system, and version of the kernel, respectively, as +returned by +.Xr uname 3 . +.It \&%% +A +.Dq % +character. +.El +.Pp +When getty execs the login process, given +in the +.Va \&lo +string (usually +.Dq Pa /usr/bin/login ) , +it will have set +the environment to include the terminal type, as indicated +by the +.Va \&tt +string (if it exists). +The +.Va \&ev +string, can be used to enter additional data into +the environment. +It is a list of comma separated strings, each of which +will presumably be of the form +.Li name=value . +.Pp +If a non-zero timeout is specified, with +.Va \&to , +then getty will exit within the indicated +number of seconds, either having +received a login name and passed control +to +.Xr login 1 , +or having received an alarm signal, and exited. +This may be useful to hangup dial in lines. +.Pp +Output from +.Xr getty 8 +is even parity unless +.Va \&op +or +.Va \&np +is specified. +The +.Va \&op +string +may be specified with +.Va \&ap +to allow any parity on input, but generate odd parity output. +Note: this only applies while getty is being run, +terminal driver limitations prevent a more complete +implementation. +The +.Xr getty 8 +utility does not check parity of input characters in +.Dv RAW +mode. +.Pp +If a +.Va \&pp +string is specified and a PPP link bring-up sequence is recognized, +getty will invoke the program referenced by the +.Va \&pp +option. +This can be used to handle incoming PPP calls. +If the +.Va \&pl +option is true as well, +.Xr getty 8 +will skip the user name prompt and the PPP detection phase, and will +invoke the program specified by +.Va \&pp +instantly. +.Pp +.Nm Getty +provides some basic intelligent modem handling by providing a chat +script feature available via two capabilities: +.Pp +.Bl -tag -offset indent -width \&xxxxxxxx -compact +.It ic +Chat script to initialize modem. +.It ac +Chat script to answer a call. +.El +.Pp +A chat script is a set of expect/send string pairs. +When a chat string starts, +.Nm getty +will wait for the first string, and if it finds it, will send the +second, and so on. +Strings specified are separated by one or more tabs or spaces. +Strings may contain standard ASCII characters and special 'escapes', +which consist of a backslash character followed by one or more +characters which are interpreted as follows: +.Pp +.Bl -tag -offset indent -width \&xxxxxxxx -compact +.It \ea +bell character. +.It \eb +backspace. +.It \en +newline. +.It \ee +escape. +.It \ef +formfeed. +.It \ep +half-second pause. +.It \er +carriage return. +.It \eS , \es +space character. +.It \et +tab. +.It \exNN +hexadecimal byte value. +.It \e0NNN +octal byte value. +.El +.Pp +Note that the +.Ql \ep +sequence is only valid for send strings and causes a half-second +pause between sending the previous and next characters. +Hexadecimal values are, at most, 2 hex digits long, and octal +values are a maximum of 3 octal digits. +.Pp +The +.Va \&ic +chat sequence is used to initialize a modem or similar device. +A typical example of an init chat script for a modem with a +hayes compatible command set might look like this: +.Pp +.Dl :ic="" ATE0Q0V1\er OK\er ATS0=0\er OK\er: +.Pp +This script waits for nothing (which always succeeds), sends +a sequence to ensure that the modem is in the correct mode +(suppress command echo, send responses in verbose mode), +and then disables auto-answer. +It waits for an "OK" response before it terminates. +The init sequence is used to check modem responses to ensure that +the modem is functioning correctly. +If the init script fails to complete, +.Nm getty +considers this to be fatal, and results in an error logged via +.Xr syslogd 8 , +and exiting. +.Pp +Similarly, an answer chat script is used to manually answer the +phone in response to (usually) a "RING". +When run with an answer script, +.Nm getty +opens the port in non-blocking mode, clears any extraneous input +and waits for data on the port. +As soon as any data is available, the answer chat script is +started and scanned for a string, and responds according to +the answer chat script. +With a hayes compatible modem, this would normally look something +like: +.Pp +.Dl :ac=RING\er ATA\er CONNECT: +.Pp +This causes the modem to answer the call via the "ATA" command, +then scans input for a "CONNECT" string. +If this is received before a +.Va \&ct +timeout, then a normal login sequence commences. +.Pp +The +.Va \&ct +capability specifies a timeout for all send and expect strings. +This timeout is set individually for each expect wait and send +string and must be at least as long as the time it takes for +a connection to be established between a remote and local +modem (usually around 10 seconds). +.Pp +In most situations, you will want to flush any additional +input after the connection has been detected, and the +.Va \&de +capability may be used to do that, as well as delay for a +short time after the connection has been established during +which all of the connection data has been sent by the modem. +.Sh SEE ALSO +.Xr login 1 , +.Xr gethostname 3 , +.Xr uname 3 , +.Xr termcap 5 , +.Xr getty 8 +.Sh HISTORY +The +.Nm +file format appeared in +.Bx 4.2 . +.Sh BUGS +The special characters (erase, kill, etc.) are reset to system defaults +by +.Xr login 1 . +In +.Em all +cases, '#' or '^H' typed in a login name will be treated as +an erase character, and '@' will be treated as a kill character. +.Pp +The delay stuff is a real crock. +Apart form its general lack of flexibility, some +of the delay algorithms are not implemented. +The terminal driver should support sane delay settings. +.Pp +The +.Xr termcap 5 +format is horrid, something more rational should +have been chosen. diff --git a/libexec/getty/gettytab.h b/libexec/getty/gettytab.h new file mode 100644 index 000000000000..d6b7384b7a44 --- /dev/null +++ b/libexec/getty/gettytab.h @@ -0,0 +1,173 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1983, 1993, 1994 + * 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. 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. + */ + +/* + * Getty description definitions. + */ +struct gettystrs { + const char *field; /* name to lookup in gettytab */ + char *defalt; /* value we find by looking in defaults */ + char *value; /* value that we find there */ +}; + +struct gettynums { + const char *field; /* name to lookup */ + long defalt; /* number we find in defaults */ + long value; /* number we find there */ + int set; /* we actually got this one */ +}; + +struct gettyflags { + const char *field; /* name to lookup */ + char invrt; /* name existing in gettytab --> false */ + char defalt; /* true/false in defaults */ + char value; /* true/false flag */ + char set; /* we found it */ +}; + +/* + * String values. + */ +#define NX gettystrs[0].value +#define CL gettystrs[1].value +#define IM gettystrs[2].value +#define LM gettystrs[3].value +#define ER gettystrs[4].value +#define KL gettystrs[5].value +#define ET gettystrs[6].value +#define PC gettystrs[7].value +#define TT gettystrs[8].value +#define EV gettystrs[9].value +#define LO gettystrs[10].value +#define HN gettystrs[11].value +#define HE gettystrs[12].value +#define IN gettystrs[13].value +#define QU gettystrs[14].value +#define XN gettystrs[15].value +#define XF gettystrs[16].value +#define BK gettystrs[17].value +#define SU gettystrs[18].value +#define DS gettystrs[19].value +#define RP gettystrs[20].value +#define FL gettystrs[21].value +#define WE gettystrs[22].value +#define LN gettystrs[23].value +#define Lo gettystrs[24].value +#define PP gettystrs[25].value +#define IF gettystrs[26].value +#define IC gettystrs[27].value +#define AC gettystrs[28].value +#define AL gettystrs[29].value +#define DF gettystrs[30].value +#define IMP gettystrs[31].value + +/* + * Numeric definitions. + */ +#define IS gettynums[0].value +#define OS gettynums[1].value +#define SP gettynums[2].value +#define ND gettynums[3].value +#define CD gettynums[4].value +#define TD gettynums[5].value +#define FD gettynums[6].value +#define BD gettynums[7].value +#define TO gettynums[8].value +#define F0 gettynums[9].value +#define F0set gettynums[9].set +#define F1 gettynums[10].value +#define F1set gettynums[10].set +#define F2 gettynums[11].value +#define F2set gettynums[11].set +#define PF gettynums[12].value +#define C0 gettynums[13].value +#define C0set gettynums[13].set +#define C1 gettynums[14].value +#define C1set gettynums[14].set +#define C2 gettynums[15].value +#define C2set gettynums[15].set +#define I0 gettynums[16].value +#define I0set gettynums[16].set +#define I1 gettynums[17].value +#define I1set gettynums[17].set +#define I2 gettynums[18].value +#define I2set gettynums[18].set +#define L0 gettynums[19].value +#define L0set gettynums[19].set +#define L1 gettynums[20].value +#define L1set gettynums[20].set +#define L2 gettynums[21].value +#define L2set gettynums[21].set +#define O0 gettynums[22].value +#define O0set gettynums[22].set +#define O1 gettynums[23].value +#define O1set gettynums[23].set +#define O2 gettynums[24].value +#define O2set gettynums[24].set +#define DE gettynums[25].value +#define RTset gettynums[26].set +#define RT gettynums[26].value +#define CT gettynums[27].value +#define DC gettynums[28].value + +/* + * Boolean values. + */ +#define HT gettyflags[0].value +#define NL gettyflags[1].value +#define EP gettyflags[2].value +#define EPset gettyflags[2].set +#define OP gettyflags[3].value +#define OPset gettyflags[3].set +#define AP gettyflags[4].value +#define APset gettyflags[4].set +#define EC gettyflags[5].value +#define CO gettyflags[6].value +#define CB gettyflags[7].value +#define CK gettyflags[8].value +#define CE gettyflags[9].value +#define PE gettyflags[10].value +#define RW gettyflags[11].value +#define XC gettyflags[12].value +#define LC gettyflags[13].value +#define UC gettyflags[14].value +#define IG gettyflags[15].value +#define PS gettyflags[16].value +#define HC gettyflags[17].value +#define UB gettyflags[18].value +#define AB gettyflags[19].value +#define DX gettyflags[20].value +#define NP gettyflags[21].value +#define NPset gettyflags[21].set +#define MB gettyflags[22].value +#define HW gettyflags[23].value +#define NC gettyflags[24].value +#define PL gettyflags[25].value diff --git a/libexec/getty/init.c b/libexec/getty/init.c new file mode 100644 index 000000000000..c304f86b568f --- /dev/null +++ b/libexec/getty/init.c @@ -0,0 +1,148 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * 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. 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. + */ + +/* + * Getty table initializations. + * + * Melbourne getty. + */ +#include <stdio.h> +#include <termios.h> +#include "gettytab.h" +#include "extern.h" +#include "pathnames.h" + +static char loginmsg[] = "login: "; +static char nullstr[] = ""; +static char loginprg[] = _PATH_LOGIN; +static char datefmt[] = "%+"; + +#define M(a) (char *)(&omode.c_cc[a]) + +struct gettystrs gettystrs[] = { + { "nx", NULL, NULL }, /* next table */ + { "cl", NULL, NULL }, /* screen clear characters */ + { "im", NULL, NULL }, /* initial message */ + { "lm", loginmsg, NULL }, /* login message */ + { "er", M(VERASE), NULL }, /* erase character */ + { "kl", M(VKILL), NULL }, /* kill character */ + { "et", M(VEOF), NULL }, /* eof chatacter (eot) */ + { "pc", nullstr, NULL }, /* pad character */ + { "tt", NULL, NULL }, /* terminal type */ + { "ev", NULL, NULL }, /* environment */ + { "lo", loginprg, NULL }, /* login program */ + { "hn", hostname, NULL }, /* host name */ + { "he", NULL, NULL }, /* host name edit */ + { "in", M(VINTR), NULL }, /* interrupt char */ + { "qu", M(VQUIT), NULL }, /* quit char */ + { "xn", M(VSTART), NULL }, /* XON (start) char */ + { "xf", M(VSTOP), NULL }, /* XOFF (stop) char */ + { "bk", M(VEOL), NULL }, /* brk char (alt \n) */ + { "su", M(VSUSP), NULL }, /* suspend char */ + { "ds", M(VDSUSP), NULL }, /* delayed suspend */ + { "rp", M(VREPRINT), NULL }, /* reprint char */ + { "fl", M(VDISCARD), NULL }, /* flush output */ + { "we", M(VWERASE), NULL }, /* word erase */ + { "ln", M(VLNEXT), NULL }, /* literal next */ + { "Lo", NULL, NULL }, /* locale for strftime() */ + { "pp", NULL, NULL }, /* ppp login program */ + { "if", NULL, NULL }, /* sysv-like 'issue' filename */ + { "ic", NULL, NULL }, /* modem init-chat */ + { "ac", NULL, NULL }, /* modem answer-chat */ + { "al", NULL, NULL }, /* user to auto-login */ + { "df", datefmt, NULL }, /* format for strftime() */ + { "iM" , NULL, NULL }, /* initial message program */ + { NULL, NULL, NULL } +}; + +struct gettynums gettynums[] = { + { "is", 0, 0, 0 }, /* input speed */ + { "os", 0, 0, 0 }, /* output speed */ + { "sp", 0, 0, 0 }, /* both speeds */ + { "nd", 0, 0, 0 }, /* newline delay */ + { "cd", 0, 0, 0 }, /* carriage-return delay */ + { "td", 0, 0, 0 }, /* tab delay */ + { "fd", 0, 0, 0 }, /* form-feed delay */ + { "bd", 0, 0, 0 }, /* backspace delay */ + { "to", 0, 0, 0 }, /* timeout */ + { "f0", 0, 0, 0 }, /* output flags */ + { "f1", 0, 0, 0 }, /* input flags */ + { "f2", 0, 0, 0 }, /* user mode flags */ + { "pf", 0, 0, 0 }, /* delay before flush at 1st prompt */ + { "c0", 0, 0, 0 }, /* output c_flags */ + { "c1", 0, 0, 0 }, /* input c_flags */ + { "c2", 0, 0, 0 }, /* user mode c_flags */ + { "i0", 0, 0, 0 }, /* output i_flags */ + { "i1", 0, 0, 0 }, /* input i_flags */ + { "i2", 0, 0, 0 }, /* user mode i_flags */ + { "l0", 0, 0, 0 }, /* output l_flags */ + { "l1", 0, 0, 0 }, /* input l_flags */ + { "l2", 0, 0, 0 }, /* user mode l_flags */ + { "o0", 0, 0, 0 }, /* output o_flags */ + { "o1", 0, 0, 0 }, /* input o_flags */ + { "o2", 0, 0, 0 }, /* user mode o_flags */ + { "de", 0, 0, 0 }, /* delay before sending 1st prompt */ + { "rt", 0, 0, 0 }, /* reset timeout */ + { "ct", 0, 0, 0 }, /* chat script timeout */ + { "dc", 0, 0, 0 }, /* debug chat script value */ + { NULL, 0, 0, 0 } +}; + + +struct gettyflags gettyflags[] = { + { "ht", 0, 0, 0, 0 }, /* has tabs */ + { "nl", 1, 0, 0, 0 }, /* has newline char */ + { "ep", 0, 0, 0, 0 }, /* even parity */ + { "op", 0, 0, 0, 0 }, /* odd parity */ + { "ap", 0, 0, 0, 0 }, /* any parity */ + { "ec", 1, 0, 0, 0 }, /* no echo */ + { "co", 0, 0, 0, 0 }, /* console special */ + { "cb", 0, 0, 0, 0 }, /* crt backspace */ + { "ck", 0, 0, 0, 0 }, /* crt kill */ + { "ce", 0, 0, 0, 0 }, /* crt erase */ + { "pe", 0, 0, 0, 0 }, /* printer erase */ + { "rw", 1, 0, 0, 0 }, /* don't use raw */ + { "xc", 1, 0, 0, 0 }, /* don't ^X ctl chars */ + { "lc", 0, 0, 0, 0 }, /* terminal las lower case */ + { "uc", 0, 0, 0, 0 }, /* terminal has no lower case */ + { "ig", 0, 0, 0, 0 }, /* ignore garbage */ + { "ps", 0, 0, 0, 0 }, /* do port selector speed select */ + { "hc", 1, 0, 0, 0 }, /* don't set hangup on close */ + { "ub", 0, 0, 0, 0 }, /* unbuffered output */ + { "ab", 0, 0, 0, 0 }, /* auto-baud detect with '\r' */ + { "dx", 0, 0, 0, 0 }, /* set decctlq */ + { "np", 0, 0, 0, 0 }, /* no parity at all (8bit chars) */ + { "mb", 0, 0, 0, 0 }, /* do MDMBUF flow control */ + { "hw", 0, 0, 0, 0 }, /* do CTSRTS flow control */ + { "nc", 0, 0, 0, 0 }, /* set clocal (no carrier) */ + { "pl", 0, 0, 0, 0 }, /* use PPP instead of login(1) */ + { NULL, 0, 0, 0, 0 } +}; diff --git a/libexec/getty/main.c b/libexec/getty/main.c new file mode 100644 index 000000000000..0e8a08f81b5f --- /dev/null +++ b/libexec/getty/main.c @@ -0,0 +1,806 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1980, 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. 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/param.h> +#include <sys/ioctl.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <sys/stat.h> +#include <sys/ttydefaults.h> +#include <sys/utsname.h> + +#include <ctype.h> +#include <errno.h> +#include <fcntl.h> +#include <locale.h> +#include <libutil.h> +#include <setjmp.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> +#include <termios.h> +#include <time.h> +#include <unistd.h> + +#include "gettytab.h" +#include "extern.h" +#include "pathnames.h" + +/* + * Set the amount of running time that getty should accumulate + * before deciding that something is wrong and exit. + */ +#define GETTY_TIMEOUT 60 /* seconds */ + +#undef CTRL +#define CTRL(x) (x&037) + +/* defines for auto detection of incoming PPP calls (->PAP/CHAP) */ + +#define PPP_FRAME 0x7e /* PPP Framing character */ +#define PPP_STATION 0xff /* "All Station" character */ +#define PPP_ESCAPE 0x7d /* Escape Character */ +#define PPP_CONTROL 0x03 /* PPP Control Field */ +#define PPP_CONTROL_ESCAPED 0x23 /* PPP Control Field, escaped */ +#define PPP_LCP_HI 0xc0 /* LCP protocol - high byte */ +#define PPP_LCP_LOW 0x21 /* LCP protocol - low byte */ + +/* original mode; flags've been reset using values from <sys/ttydefaults.h> */ +struct termios omode; +/* current mode */ +struct termios tmode; + +static int crmod, digit, lower, upper; + +char hostname[MAXHOSTNAMELEN]; +static char name[MAXLOGNAME*3]; +static char ttyn[32]; + +#define OBUFSIZ 128 + +static const char *tname; + +static char *env[128]; + +static char partab[] = { + 0001,0201,0201,0001,0201,0001,0001,0201, + 0202,0004,0003,0205,0005,0206,0201,0001, + 0201,0001,0001,0201,0001,0201,0201,0001, + 0001,0201,0201,0001,0201,0001,0001,0201, + 0200,0000,0000,0200,0000,0200,0200,0000, + 0000,0200,0200,0000,0200,0000,0000,0200, + 0000,0200,0200,0000,0200,0000,0000,0200, + 0200,0000,0000,0200,0000,0200,0200,0000, + 0200,0000,0000,0200,0000,0200,0200,0000, + 0000,0200,0200,0000,0200,0000,0000,0200, + 0000,0200,0200,0000,0200,0000,0000,0200, + 0200,0000,0000,0200,0000,0200,0200,0000, + 0000,0200,0200,0000,0200,0000,0000,0200, + 0200,0000,0000,0200,0000,0200,0200,0000, + 0200,0000,0000,0200,0000,0200,0200,0000, + 0000,0200,0200,0000,0200,0000,0000,0201 +}; + +#define ERASE tmode.c_cc[VERASE] +#define KILL tmode.c_cc[VKILL] +#define EOT tmode.c_cc[VEOF] + +#define puts Gputs + +static void defttymode(void); +static void dingdong(int); +static void dogettytab(void); +static int getname(void); +static void interrupt(int); +static void oflush(void); +static void prompt(void); +static void putchr(int); +static void putf(const char *); +static void putpad(const char *); +static void puts(const char *); +static void timeoverrun(int); +static char *get_line(int); +static void setttymode(int); +static int opentty(const char *, int); + +static jmp_buf timeout; + +static void +dingdong(int signo __unused) +{ + alarm(0); + longjmp(timeout, 1); +} + +static jmp_buf intrupt; + +static void +interrupt(int signo __unused) +{ + longjmp(intrupt, 1); +} + +/* + * Action to take when getty is running too long. + */ +static void +timeoverrun(int signo __unused) +{ + + syslog(LOG_ERR, "getty exiting due to excessive running time"); + exit(1); +} + +int +main(int argc, char *argv[]) +{ + int first_sleep = 1, first_time = 1; + struct rlimit limit; + int rval; + + signal(SIGINT, SIG_IGN); + signal(SIGQUIT, SIG_IGN); + + openlog("getty", LOG_CONS|LOG_PID, LOG_AUTH); + gethostname(hostname, sizeof(hostname) - 1); + hostname[sizeof(hostname) - 1] = '\0'; + if (hostname[0] == '\0') + snprintf(hostname, sizeof(hostname), "Amnesiac"); + + /* + * Limit running time to deal with broken or dead lines. + */ + (void)signal(SIGXCPU, timeoverrun); + limit.rlim_max = RLIM_INFINITY; + limit.rlim_cur = GETTY_TIMEOUT; + (void)setrlimit(RLIMIT_CPU, &limit); + + gettable("default"); + gendefaults(); + tname = "default"; + if (argc > 1) + tname = argv[1]; + + /* + * The following is a work around for vhangup interactions + * which cause great problems getting window systems started. + * If the tty line is "-", we do the old style getty presuming + * that the file descriptors are already set up for us. + * J. Gettys - MIT Project Athena. + */ + if (argc <= 2 || strcmp(argv[2], "-") == 0) { + char *n = ttyname(STDIN_FILENO); + if (n == NULL) { + syslog(LOG_ERR, "ttyname: %m"); + exit(1); + } + snprintf(ttyn, sizeof(ttyn), "%s", n); + } else { + snprintf(ttyn, sizeof(ttyn), "%s%s", _PATH_DEV, argv[2]); + if (strcmp(argv[0], "+") != 0) { + chown(ttyn, 0, 0); + chmod(ttyn, 0600); + revoke(ttyn); + + /* + * Do the first scan through gettytab. + * Terminal mode parameters will be wrong until + * defttymode() called, but they're irrelevant for + * the initial setup of the terminal device. + */ + dogettytab(); + + /* + * Init or answer modem sequence has been specified. + */ + if (IC || AC) { + if (!opentty(ttyn, O_RDWR|O_NONBLOCK)) + exit(1); + defttymode(); + setttymode(1); + } + + if (IC) { + if (getty_chat(IC, CT, DC) > 0) { + syslog(LOG_ERR, "modem init problem on %s", ttyn); + (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); + exit(1); + } + } + + if (AC) { + fd_set rfds; + struct timeval to; + int i; + + FD_ZERO(&rfds); + FD_SET(0, &rfds); + to.tv_sec = RT; + to.tv_usec = 0; + i = select(32, &rfds, NULL, NULL, RT ? &to : NULL); + if (i < 0) { + syslog(LOG_ERR, "select %s: %m", ttyn); + } else if (i == 0) { + syslog(LOG_NOTICE, "recycle tty %s", ttyn); + (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); + exit(0); /* recycle for init */ + } + i = getty_chat(AC, CT, DC); + if (i > 0) { + syslog(LOG_ERR, "modem answer problem on %s", ttyn); + (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); + exit(1); + } + } else { /* maybe blocking open */ + if (!opentty(ttyn, O_RDWR | (NC ? O_NONBLOCK : 0 ))) + exit(1); + } + } + } + + defttymode(); + for (;;) { + + /* + * if a delay was specified then sleep for that + * number of seconds before writing the initial prompt + */ + if (first_sleep && DE) { + sleep(DE); + /* remove any noise */ + (void)tcflush(STDIN_FILENO, TCIOFLUSH); + } + first_sleep = 0; + + setttymode(0); + if (AB) { + tname = autobaud(); + dogettytab(); + continue; + } + if (PS) { + tname = portselector(); + dogettytab(); + continue; + } + if (CL && *CL) + putpad(CL); + edithost(HE); + + /* if this is the first time through this, and an + issue file has been given, then send it */ + if (first_time && IF) { + int fd; + + if ((fd = open(IF, O_RDONLY)) != -1) { + char * cp; + + while ((cp = get_line(fd)) != NULL) { + putf(cp); + } + close(fd); + } + } + first_time = 0; + + if (IMP && *IMP && !(PL && PP)) + system(IMP); + if (IM && *IM && !(PL && PP)) + putf(IM); + if (setjmp(timeout)) { + cfsetispeed(&tmode, B0); + cfsetospeed(&tmode, B0); + (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); + exit(1); + } + if (TO) { + signal(SIGALRM, dingdong); + alarm(TO); + } + + rval = 0; + if (AL) { + const char *p = AL; + char *q = name; + + while (*p && q < &name[sizeof name - 1]) { + if (isupper(*p)) + upper = 1; + else if (islower(*p)) + lower = 1; + else if (isdigit(*p)) + digit = 1; + *q++ = *p++; + } + } else if (!(PL && PP)) + rval = getname(); + if (rval == 2 || (PL && PP)) { + oflush(); + alarm(0); + limit.rlim_max = RLIM_INFINITY; + limit.rlim_cur = RLIM_INFINITY; + (void)setrlimit(RLIMIT_CPU, &limit); + execle(PP, "ppplogin", ttyn, (char *) 0, env); + syslog(LOG_ERR, "%s: %m", PP); + exit(1); + } else if (rval || AL) { + int i; + + oflush(); + alarm(0); + signal(SIGALRM, SIG_DFL); + if (name[0] == '\0') + continue; + if (name[0] == '-') { + puts("user names may not start with '-'."); + continue; + } + if (!(upper || lower || digit)) { + if (AL) { + syslog(LOG_ERR, + "invalid auto-login name: %s", AL); + exit(1); + } else + continue; + } + set_flags(2); + if (crmod) { + tmode.c_iflag |= ICRNL; + tmode.c_oflag |= ONLCR; + } +#if REALLY_OLD_TTYS + if (upper || UC) + tmode.sg_flags |= LCASE; + if (lower || LC) + tmode.sg_flags &= ~LCASE; +#endif + if (tcsetattr(STDIN_FILENO, TCSANOW, &tmode) < 0) { + syslog(LOG_ERR, "tcsetattr %s: %m", ttyn); + exit(1); + } + signal(SIGINT, SIG_DFL); + for (i = 0; environ[i] != (char *)0; i++) + env[i] = environ[i]; + makeenv(&env[i]); + + limit.rlim_max = RLIM_INFINITY; + limit.rlim_cur = RLIM_INFINITY; + (void)setrlimit(RLIMIT_CPU, &limit); + execle(LO, "login", AL ? "-fp" : "-p", name, + (char *) 0, env); + syslog(LOG_ERR, "%s: %m", LO); + exit(1); + } + alarm(0); + signal(SIGALRM, SIG_DFL); + signal(SIGINT, SIG_IGN); + if (NX && *NX) { + tname = NX; + dogettytab(); + } + } +} + +static int +opentty(const char *tty, int flags) +{ + int failopenlogged = 0, i, saved_errno; + + while ((i = open(tty, flags)) == -1) + { + saved_errno = errno; + if (!failopenlogged) { + syslog(LOG_ERR, "open %s: %m", tty); + failopenlogged = 1; + } + if (saved_errno == ENOENT) + return 0; + sleep(60); + } + if (login_tty(i) < 0) { + if (daemon(0,0) < 0) { + syslog(LOG_ERR,"daemon: %m"); + close(i); + return 0; + } + if (login_tty(i) < 0) { + syslog(LOG_ERR, "login_tty %s: %m", tty); + close(i); + return 0; + } + } + return 1; +} + +static void +defttymode(void) +{ + struct termios def; + + /* Start with default tty settings. */ + if (tcgetattr(STDIN_FILENO, &tmode) < 0) { + syslog(LOG_ERR, "tcgetattr %s: %m", ttyn); + exit(1); + } + omode = tmode; /* fill c_cc for dogettytab() */ + dogettytab(); + /* + * Don't rely on the driver too much, and initialize crucial + * things according to <sys/ttydefaults.h>. Avoid clobbering + * the c_cc[] settings however, the console drivers might wish + * to leave their idea of the preferred VERASE key value + * there. + */ + cfmakesane(&def); + tmode.c_iflag = def.c_iflag; + tmode.c_oflag = def.c_oflag; + tmode.c_lflag = def.c_lflag; + tmode.c_cflag = def.c_cflag; + if (NC) + tmode.c_cflag |= CLOCAL; + omode = tmode; +} + +static void +setttymode(int raw) +{ + int off = 0; + + (void)tcflush(STDIN_FILENO, TCIOFLUSH); /* clear out the crap */ + ioctl(STDIN_FILENO, FIONBIO, &off); /* turn off non-blocking mode */ + ioctl(STDIN_FILENO, FIOASYNC, &off); /* ditto for async mode */ + + if (IS) + cfsetispeed(&tmode, speed(IS)); + else if (SP) + cfsetispeed(&tmode, speed(SP)); + if (OS) + cfsetospeed(&tmode, speed(OS)); + else if (SP) + cfsetospeed(&tmode, speed(SP)); + set_flags(0); + setchars(); + if (raw) + cfmakeraw(&tmode); + if (tcsetattr(STDIN_FILENO, TCSANOW, &tmode) < 0) { + syslog(LOG_ERR, "tcsetattr %s: %m", ttyn); + exit(1); + } +} + + +static int +getname(void) +{ + int c; + char *np; + unsigned char cs; + int ppp_state = 0; + int ppp_connection = 0; + + /* + * Interrupt may happen if we use CBREAK mode + */ + if (setjmp(intrupt)) { + signal(SIGINT, SIG_IGN); + return (0); + } + signal(SIGINT, interrupt); + set_flags(1); + prompt(); + oflush(); + if (PF > 0) { + sleep(PF); + PF = 0; + } + if (tcsetattr(STDIN_FILENO, TCSANOW, &tmode) < 0) { + syslog(LOG_ERR, "%s: %m", ttyn); + exit(1); + } + crmod = digit = lower = upper = 0; + np = name; + for (;;) { + oflush(); + if (read(STDIN_FILENO, &cs, 1) <= 0) + exit(0); + if ((c = cs&0177) == 0) + return (0); + + /* PPP detection state machine.. + Look for sequences: + PPP_FRAME, PPP_STATION, PPP_ESCAPE, PPP_CONTROL_ESCAPED or + PPP_FRAME, PPP_STATION, PPP_CONTROL (deviant from RFC) + See RFC1662. + Derived from code from Michael Hancock, <michaelh@cet.co.jp> + and Erik 'PPP' Olson, <eriko@wrq.com> + */ + + if (PP && (cs == PPP_FRAME)) { + ppp_state = 1; + } else if (ppp_state == 1 && cs == PPP_STATION) { + ppp_state = 2; + } else if (ppp_state == 2 && cs == PPP_ESCAPE) { + ppp_state = 3; + } else if ((ppp_state == 2 && cs == PPP_CONTROL) + || (ppp_state == 3 && cs == PPP_CONTROL_ESCAPED)) { + ppp_state = 4; + } else if (ppp_state == 4 && cs == PPP_LCP_HI) { + ppp_state = 5; + } else if (ppp_state == 5 && cs == PPP_LCP_LOW) { + ppp_connection = 1; + break; + } else { + ppp_state = 0; + } + + if (c == EOT || c == CTRL('d')) + exit(0); + if (c == '\r' || c == '\n' || np >= &name[sizeof name-1]) { + putf("\r\n"); + break; + } + if (islower(c)) + lower = 1; + else if (isupper(c)) + upper = 1; + else if (c == ERASE || c == '\b' || c == 0177) { + if (np > name) { + np--; + if (cfgetospeed(&tmode) >= 1200) + puts("\b \b"); + else + putchr(cs); + } + continue; + } else if (c == KILL || c == CTRL('u')) { + putchr('\r'); + if (cfgetospeed(&tmode) < 1200) + putchr('\n'); + /* this is the way they do it down under ... */ + else if (np > name) + puts(" \r"); + prompt(); + digit = lower = upper = 0; + np = name; + continue; + } else if (isdigit(c)) + digit = 1; + if (IG && (c <= ' ' || c > 0176)) + continue; + *np++ = c; + putchr(cs); + } + signal(SIGINT, SIG_IGN); + *np = 0; + if (c == '\r') + crmod = 1; + if ((upper && !lower && !LC) || UC) + for (np = name; *np; np++) + if (isupper(*np)) + *np = tolower(*np); + return (1 + ppp_connection); +} + +static void +putpad(const char *s) +{ + int pad = 0; + speed_t ospeed = cfgetospeed(&tmode); + + if (isdigit(*s)) { + while (isdigit(*s)) { + pad *= 10; + pad += *s++ - '0'; + } + pad *= 10; + if (*s == '.' && isdigit(s[1])) { + pad += s[1] - '0'; + s += 2; + } + } + + puts(s); + /* + * If no delay needed, or output speed is + * not comprehensible, then don't try to delay. + */ + if (pad == 0 || ospeed <= 0) + return; + + /* + * Round up by a half a character frame, and then do the delay. + * Too bad there are no user program accessible programmed delays. + * Transmitting pad characters slows many terminals down and also + * loads the system. + */ + pad = (pad * ospeed + 50000) / 100000; + while (pad--) + putchr(*PC); +} + +static void +puts(const char *s) +{ + while (*s) + putchr(*s++); +} + +static char outbuf[OBUFSIZ]; +static int obufcnt = 0; + +static void +putchr(int cc) +{ + char c; + + c = cc; + if (!NP) { + c |= partab[c&0177] & 0200; + if (OP) + c ^= 0200; + } + if (!UB) { + outbuf[obufcnt++] = c; + if (obufcnt >= OBUFSIZ) + oflush(); + } else + write(STDOUT_FILENO, &c, 1); +} + +static void +oflush(void) +{ + if (obufcnt) + write(STDOUT_FILENO, outbuf, obufcnt); + obufcnt = 0; +} + +static void +prompt(void) +{ + + putf(LM); + if (CO) + putchr('\n'); +} + + +static char * +get_line(int fd) +{ + size_t i = 0; + static char linebuf[512]; + + /* + * This is certainly slow, but it avoids having to include + * stdio.h unnecessarily. Issue files should be small anyway. + */ + while (i < (sizeof linebuf - 3) && read(fd, linebuf+i, 1)==1) { + if (linebuf[i] == '\n') { + /* Don't rely on newline mode, assume raw */ + linebuf[i++] = '\r'; + linebuf[i++] = '\n'; + linebuf[i] = '\0'; + return linebuf; + } + ++i; + } + linebuf[i] = '\0'; + return i ? linebuf : 0; +} + +static void +putf(const char *cp) +{ + time_t t; + char db[100]; + const char *slash; + + static struct utsname kerninfo; + + if (!*kerninfo.sysname) + uname(&kerninfo); + + while (*cp) { + if (*cp != '%') { + putchr(*cp++); + continue; + } + switch (*++cp) { + + case 't': + slash = strrchr(ttyn, '/'); + if (slash == (char *) 0) + puts(ttyn); + else + puts(&slash[1]); + break; + + case 'h': + puts(editedhost); + break; + + case 'd': + t = (time_t)0; + (void)time(&t); + if (Lo) + (void)setlocale(LC_TIME, Lo); + (void)strftime(db, sizeof(db), DF, localtime(&t)); + puts(db); + break; + + case 's': + puts(kerninfo.sysname); + break; + + case 'm': + puts(kerninfo.machine); + break; + + case 'r': + puts(kerninfo.release); + break; + + case 'v': + puts(kerninfo.version); + break; + + case '%': + putchr('%'); + break; + } + cp++; + } +} + +/* + * Read a gettytab database entry and perform necessary quirks. + */ +static void +dogettytab(void) +{ + + /* Read the database entry. */ + gettable(tname); + + /* + * Avoid inheriting the parity values from the default entry + * if any of them is set in the current entry. + * Mixing different parity settings is unreasonable. + */ + if (OPset || EPset || APset || NPset) + OPset = EPset = APset = NPset = 1; + + /* Fill in default values for unset capabilities. */ + setdefaults(); +} diff --git a/libexec/getty/pathnames.h b/libexec/getty/pathnames.h new file mode 100644 index 000000000000..1de5551a196a --- /dev/null +++ b/libexec/getty/pathnames.h @@ -0,0 +1,35 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * 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. 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 <paths.h> + +#define _PATH_GETTYTAB "/etc/gettytab" +#define _PATH_LOGIN "/usr/bin/login" diff --git a/libexec/getty/subr.c b/libexec/getty/subr.c new file mode 100644 index 000000000000..05186f593bf4 --- /dev/null +++ b/libexec/getty/subr.c @@ -0,0 +1,676 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * 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. 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. + */ + +/* + * Melbourne getty. + */ +#include <sys/ioctl.h> +#include <sys/param.h> +#include <sys/time.h> + +#include <poll.h> +#include <regex.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> +#include <termios.h> +#include <unistd.h> + +#include "gettytab.h" +#include "pathnames.h" +#include "extern.h" + +/* + * Get a table entry. + */ +void +gettable(const char *name) +{ + char *buf = NULL; + struct gettystrs *sp; + struct gettynums *np; + struct gettyflags *fp; + long n; + int l; + char *p; + static char path_gettytab[PATH_MAX]; + char *dba[2]; + + static int firsttime = 1; + + strlcpy(path_gettytab, _PATH_GETTYTAB, sizeof(path_gettytab)); + dba[0] = path_gettytab; + dba[1] = NULL; + + if (firsttime) { + /* + * we need to strdup() anything in the strings array + * initially in order to simplify things later + */ + for (sp = gettystrs; sp->field; sp++) + if (sp->value != NULL) { + /* handle these ones more carefully */ + if (sp >= &gettystrs[4] && sp <= &gettystrs[6]) + l = 2; + else + l = strlen(sp->value) + 1; + if ((p = malloc(l)) != NULL) + strlcpy(p, sp->value, l); + /* + * replace, even if NULL, else we'll + * have problems with free()ing static mem + */ + sp->value = p; + } + firsttime = 0; + } + + switch (cgetent(&buf, dba, name)) { + case 1: + syslog(LOG_ERR, "getty: couldn't resolve 'tc=' in gettytab '%s'", name); + return; + case 0: + break; + case -1: + syslog(LOG_ERR, "getty: unknown gettytab entry '%s'", name); + return; + case -2: + syslog(LOG_ERR, "getty: retrieving gettytab entry '%s': %m", name); + return; + case -3: + syslog(LOG_ERR, "getty: recursive 'tc=' reference gettytab entry '%s'", name); + return; + default: + syslog(LOG_ERR, "getty: unexpected cgetent() error for entry '%s'", name); + return; + } + + for (sp = gettystrs; sp->field; sp++) { + if ((l = cgetstr(buf, sp->field, &p)) >= 0) { + if (sp->value) { + /* prefer existing value */ + if (strcmp(p, sp->value) != 0) + free(sp->value); + else { + free(p); + p = sp->value; + } + } + sp->value = p; + } else if (l == -1) { + free(sp->value); + sp->value = NULL; + } + } + + for (np = gettynums; np->field; np++) { + if (cgetnum(buf, np->field, &n) == -1) + np->set = 0; + else { + np->set = 1; + np->value = n; + } + } + + for (fp = gettyflags; fp->field; fp++) { + if (cgetcap(buf, fp->field, ':') == NULL) + fp->set = 0; + else { + fp->set = 1; + fp->value = 1 ^ fp->invrt; + } + } + free(buf); +} + +void +gendefaults(void) +{ + struct gettystrs *sp; + struct gettynums *np; + struct gettyflags *fp; + + for (sp = gettystrs; sp->field; sp++) + if (sp->value) + sp->defalt = strdup(sp->value); + for (np = gettynums; np->field; np++) + if (np->set) + np->defalt = np->value; + for (fp = gettyflags; fp->field; fp++) + if (fp->set) + fp->defalt = fp->value; + else + fp->defalt = fp->invrt; +} + +void +setdefaults(void) +{ + struct gettystrs *sp; + struct gettynums *np; + struct gettyflags *fp; + + for (sp = gettystrs; sp->field; sp++) + if (!sp->value) + sp->value = !sp->defalt ? + sp->defalt : strdup(sp->defalt); + for (np = gettynums; np->field; np++) + if (!np->set) + np->value = np->defalt; + for (fp = gettyflags; fp->field; fp++) + if (!fp->set) + fp->value = fp->defalt; +} + +static char ** +charnames[] = { + &ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK, + &SU, &DS, &RP, &FL, &WE, &LN, 0 +}; + +#define CV(a) (char *)(&tmode.c_cc[a]) + +static char * +charvars[] = { + CV(VERASE), CV(VKILL), CV(VINTR), + CV(VQUIT), CV(VSTART), CV(VSTOP), + CV(VEOF), CV(VEOL), CV(VSUSP), + CV(VDSUSP), CV(VREPRINT), CV(VDISCARD), + CV(VWERASE), CV(VLNEXT), 0 +}; + +void +setchars(void) +{ + int i; + const char *p; + + for (i = 0; charnames[i]; i++) { + p = *charnames[i]; + if (p && *p) + *charvars[i] = *p; + else + *charvars[i] = _POSIX_VDISABLE; + } +} + +/* Macros to clear/set/test flags. */ +#define SET(t, f) (t) |= (f) +#define CLR(t, f) (t) &= ~(f) +#define ISSET(t, f) ((t) & (f)) + +void +set_flags(int n) +{ + tcflag_t iflag, oflag, cflag, lflag; + + + switch (n) { + case 0: + if (C0set && I0set && L0set && O0set) { + tmode.c_cflag = C0; + tmode.c_iflag = I0; + tmode.c_lflag = L0; + tmode.c_oflag = O0; + return; + } + break; + case 1: + if (C1set && I1set && L1set && O1set) { + tmode.c_cflag = C1; + tmode.c_iflag = I1; + tmode.c_lflag = L1; + tmode.c_oflag = O1; + return; + } + break; + default: + if (C2set && I2set && L2set && O2set) { + tmode.c_cflag = C2; + tmode.c_iflag = I2; + tmode.c_lflag = L2; + tmode.c_oflag = O2; + return; + } + break; + } + + iflag = omode.c_iflag; + oflag = omode.c_oflag; + cflag = omode.c_cflag; + lflag = omode.c_lflag; + + if (NP) { + CLR(cflag, CSIZE|PARENB); + SET(cflag, CS8); + CLR(iflag, ISTRIP|INPCK|IGNPAR); + } else if (AP || EP || OP) { + CLR(cflag, CSIZE); + SET(cflag, CS7|PARENB); + SET(iflag, ISTRIP); + if (OP && !EP) { + SET(iflag, INPCK|IGNPAR); + SET(cflag, PARODD); + if (AP) + CLR(iflag, INPCK); + } else if (EP && !OP) { + SET(iflag, INPCK|IGNPAR); + CLR(cflag, PARODD); + if (AP) + CLR(iflag, INPCK); + } else if (AP || (EP && OP)) { + CLR(iflag, INPCK|IGNPAR); + CLR(cflag, PARODD); + } + } /* else, leave as is */ + +#if 0 + if (UC) + f |= LCASE; +#endif + + if (HC) + SET(cflag, HUPCL); + else + CLR(cflag, HUPCL); + + if (MB) + SET(cflag, MDMBUF); + else + CLR(cflag, MDMBUF); + + if (HW) + SET(cflag, CRTSCTS); + else + CLR(cflag, CRTSCTS); + + if (NL) { + SET(iflag, ICRNL); + SET(oflag, ONLCR|OPOST); + } else { + CLR(iflag, ICRNL); + CLR(oflag, ONLCR); + } + + if (!HT) + SET(oflag, OXTABS|OPOST); + else + CLR(oflag, OXTABS); + +#ifdef XXX_DELAY + SET(f, delaybits()); +#endif + + if (n == 1) { /* read mode flags */ + if (RW) { + iflag = 0; + CLR(oflag, OPOST); + CLR(cflag, CSIZE|PARENB); + SET(cflag, CS8); + lflag = 0; + } else { + CLR(lflag, ICANON); + } + goto out; + } + + if (n == 0) + goto out; + +#if 0 + if (CB) + SET(f, CRTBS); +#endif + + if (CE) + SET(lflag, ECHOE); + else + CLR(lflag, ECHOE); + + if (CK) + SET(lflag, ECHOKE); + else + CLR(lflag, ECHOKE); + + if (PE) + SET(lflag, ECHOPRT); + else + CLR(lflag, ECHOPRT); + + if (EC) + SET(lflag, ECHO); + else + CLR(lflag, ECHO); + + if (XC) + SET(lflag, ECHOCTL); + else + CLR(lflag, ECHOCTL); + + if (DX) + SET(lflag, IXANY); + else + CLR(lflag, IXANY); + +out: + tmode.c_iflag = iflag; + tmode.c_oflag = oflag; + tmode.c_cflag = cflag; + tmode.c_lflag = lflag; +} + + +#ifdef XXX_DELAY +struct delayval { + unsigned delay; /* delay in ms */ + int bits; +}; + +/* + * below are random guesses, I can't be bothered checking + */ + +struct delayval crdelay[] = { + { 1, CR1 }, + { 2, CR2 }, + { 3, CR3 }, + { 83, CR1 }, + { 166, CR2 }, + { 0, CR3 }, +}; + +struct delayval nldelay[] = { + { 1, NL1 }, /* special, calculated */ + { 2, NL2 }, + { 3, NL3 }, + { 100, NL2 }, + { 0, NL3 }, +}; + +struct delayval bsdelay[] = { + { 1, BS1 }, + { 0, 0 }, +}; + +struct delayval ffdelay[] = { + { 1, FF1 }, + { 1750, FF1 }, + { 0, FF1 }, +}; + +struct delayval tbdelay[] = { + { 1, TAB1 }, + { 2, TAB2 }, + { 3, XTABS }, /* this is expand tabs */ + { 100, TAB1 }, + { 0, TAB2 }, +}; + +int +delaybits(void) +{ + int f; + + f = adelay(CD, crdelay); + f |= adelay(ND, nldelay); + f |= adelay(FD, ffdelay); + f |= adelay(TD, tbdelay); + f |= adelay(BD, bsdelay); + return (f); +} + +int +adelay(int ms, struct delayval *dp) +{ + if (ms == 0) + return (0); + while (dp->delay && ms > dp->delay) + dp++; + return (dp->bits); +} +#endif + +char editedhost[MAXHOSTNAMELEN]; + +void +edithost(const char *pattern) +{ + regex_t regex; + regmatch_t *match; + int found; + + if (pattern == NULL || *pattern == '\0') + goto copyasis; + if (regcomp(®ex, pattern, REG_EXTENDED) != 0) + goto copyasis; + + match = calloc(regex.re_nsub + 1, sizeof(*match)); + if (match == NULL) { + regfree(®ex); + goto copyasis; + } + + found = !regexec(®ex, HN, regex.re_nsub + 1, match, 0); + if (found) { + size_t subex, totalsize; + + /* + * We found a match. If there were no parenthesized + * subexpressions in the pattern, use entire matched + * string as ``editedhost''; otherwise use the first + * matched subexpression. + */ + subex = !!regex.re_nsub; + totalsize = match[subex].rm_eo - match[subex].rm_so + 1; + strlcpy(editedhost, HN + match[subex].rm_so, totalsize > + sizeof(editedhost) ? sizeof(editedhost) : totalsize); + } + free(match); + regfree(®ex); + if (found) + return; + /* + * In case of any errors, or if the pattern did not match, pass + * the original hostname as is. + */ +copyasis: + strlcpy(editedhost, HN, sizeof(editedhost)); +} + +static struct speedtab { + int speed; + int uxname; +} speedtab[] = { + { 50, B50 }, + { 75, B75 }, + { 110, B110 }, + { 134, B134 }, + { 150, B150 }, + { 200, B200 }, + { 300, B300 }, + { 600, B600 }, + { 1200, B1200 }, + { 1800, B1800 }, + { 2400, B2400 }, + { 4800, B4800 }, + { 9600, B9600 }, + { 19200, EXTA }, + { 19, EXTA }, /* for people who say 19.2K */ + { 38400, EXTB }, + { 38, EXTB }, + { 7200, EXTB }, /* alternative */ + { 57600, B57600 }, + { 115200, B115200 }, + { 230400, B230400 }, + { 0, 0 } +}; + +int +speed(int val) +{ + struct speedtab *sp; + + if (val <= B230400) + return (val); + + for (sp = speedtab; sp->speed; sp++) + if (sp->speed == val) + return (sp->uxname); + + return (B300); /* default in impossible cases */ +} + +void +makeenv(char *env[]) +{ + static char termbuf[128] = "TERM="; + char *p, *q; + char **ep; + + ep = env; + if (TT && *TT) { + strlcat(termbuf, TT, sizeof(termbuf)); + *ep++ = termbuf; + } + if ((p = EV)) { + q = p; + while ((q = strchr(q, ','))) { + *q++ = '\0'; + *ep++ = p; + p = q; + } + if (*p) + *ep++ = p; + } + *ep = (char *)0; +} + +/* + * This speed select mechanism is written for the Develcon DATASWITCH. + * The Develcon sends a string of the form "B{speed}\n" at a predefined + * baud rate. This string indicates the user's actual speed. + * The routine below returns the terminal type mapped from derived speed. + */ +static struct portselect { + const char *ps_baud; + const char *ps_type; +} portspeeds[] = { + { "B110", "std.110" }, + { "B134", "std.134" }, + { "B150", "std.150" }, + { "B300", "std.300" }, + { "B600", "std.600" }, + { "B1200", "std.1200" }, + { "B2400", "std.2400" }, + { "B4800", "std.4800" }, + { "B9600", "std.9600" }, + { "B19200", "std.19200" }, + { NULL, NULL } +}; + +const char * +portselector(void) +{ + char c, baud[20]; + const char *type = "default"; + struct portselect *ps; + size_t len; + + alarm(5*60); + for (len = 0; len < sizeof (baud) - 1; len++) { + if (read(STDIN_FILENO, &c, 1) <= 0) + break; + c &= 0177; + if (c == '\n' || c == '\r') + break; + if (c == 'B') + len = 0; /* in case of leading garbage */ + baud[len] = c; + } + baud[len] = '\0'; + for (ps = portspeeds; ps->ps_baud; ps++) + if (strcmp(ps->ps_baud, baud) == 0) { + type = ps->ps_type; + break; + } + sleep(2); /* wait for connection to complete */ + return (type); +} + +/* + * This auto-baud speed select mechanism is written for the Micom 600 + * portselector. Selection is done by looking at how the character '\r' + * is garbled at the different speeds. + */ +const char * +autobaud(void) +{ + struct pollfd set[1]; + struct timespec timeout; + char c; + const char *type = "9600-baud"; + + (void)tcflush(0, TCIOFLUSH); + set[0].fd = STDIN_FILENO; + set[0].events = POLLIN; + if (poll(set, 1, 5000) <= 0) + return (type); + if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char)) + return (type); + timeout.tv_sec = 0; + timeout.tv_nsec = 20000; + (void)nanosleep(&timeout, NULL); + (void)tcflush(0, TCIOFLUSH); + switch (c & 0377) { + + case 0200: /* 300-baud */ + type = "300-baud"; + break; + + case 0346: /* 1200-baud */ + type = "1200-baud"; + break; + + case 015: /* 2400-baud */ + case 0215: + type = "2400-baud"; + break; + + default: /* 4800-baud */ + type = "4800-baud"; + break; + + case 0377: /* 9600-baud */ + type = "9600-baud"; + break; + } + return (type); +} diff --git a/libexec/getty/ttys.5 b/libexec/getty/ttys.5 new file mode 100644 index 000000000000..cd94e6a1c91a --- /dev/null +++ b/libexec/getty/ttys.5 @@ -0,0 +1,177 @@ +.\" Copyright (c) 1985, 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. 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. +.\" " +.Dd October 26, 2023 +.Dt TTYS 5 +.Os +.Sh NAME +.Nm ttys +.Nd terminal initialization information +.Sh DESCRIPTION +The file +.Nm +contains information that is used by various routines to initialize +and control the use of terminal special files. +Pseudo-terminals (see +.Xr pts 4 ) +are not listed. +This information is read with the +.Xr getttyent 3 +library routines. +There is one line in the +.Nm +file per special device file. +Fields are separated by tabs and/or spaces. +Fields comprised of more than one word should be enclosed in double +quotes (``"''). +Blank lines and comments may appear anywhere in the file; comments +are delimited by hash marks (``#'') and new lines. +Any unspecified fields will default to null. +.Pp +The first field is normally the +name of the terminal special file as it is found in +.Pa /dev . +However, it can be any arbitrary string +when the associated command is not related to a tty. +.Pp +The second field of the file is the command to execute for the line, +usually +.Xr getty 8 , +which initializes and opens the line, setting the speed, waiting for +a user name and executing the +.Xr login 1 +program. +It can be, however, any desired command, for example +the start up for a window system terminal emulator or some other +daemon process, and can contain multiple words if quoted. +.Pp +The third field is the type of terminal usually connected to that +tty line, normally the one found in the +.Xr termcap 5 +data base file. +The environment variable +.Ev TERM +is initialized with the value by +either +.Xr getty 8 +or +.Xr login 1 . +.Pp +The remaining fields set flags in the +.Fa ty_status +entry (see +.Xr getttyent 3 ) , +specify a window system process that +.Xr init 8 +will maintain for the terminal line, optionally determine the +type of tty (whether dialin, network or otherwise), +or specify a tty group +name that allows the login class database (see +.Xr login.conf 5 ) +to refer to many ttys as a group, to selectively allow or +deny access or enable or disable accounting facilities for +ttys as a group. +.Pp +As flag values, the strings ``on'' and ``off'' specify that +.Xr init 8 +should (should not) execute the command given in the second field. +``onifconsole'' will cause this line to be enabled if and only if it is +an active kernel console device (it is equivalent to ``on'' in this +case). +The flag ``onifexists'' will cause this line to be enabled if and only +if the name exists. +If the name starts with a ``/'', it will be considered an absolute +path. +Otherwise, it is considered a path relative to +.Pa /dev . +The flag ``secure'' (if the console is enabled) allows users with a +uid of 0 to login on this line. +The flag ``insecure'' as well as the absence of the ``secure'' flag +disallows users with uid of 0 to login on this line. +The flag ``dialup'' indicates that a tty entry describes a dialin +line, and ``network'' is obsolete and does nothing. +Either of these strings may also be specified in the terminal type +field. +The string ``window='' may be followed by a quoted command +string which +.Xr init 8 +will execute +.Em before +starting the command specified by the second field. +.Pp +The string ``group='' may be followed by a group name comprised of +alphanumeric characters that can be used by +.Xr login.conf 5 +to refer to many tty lines as a group to enable or disable access +and accounting facilities. +If no group is specified, then the tty becomes a member of the group +"none". +For backwards compatibility, the ``group='' should appear last on the +line, immediately before the optional comment. +.Pp +Both the second field and any command specified with ``window='' +will be split into words and executed using +.Xr execve 2 . +Words are separated by any combinations of tabs and spaces. +Arguments containing whitespace should be enclosed in single quotes +.Pq Li ' . +Note that no shell-style globbing or other variable substitution occurs. +.Sh FILES +.Bl -tag -width /etc/ttys -compact +.It Pa /etc/ttys +.El +.Sh EXAMPLES +.Bd -literal +# root login on console at 1200 baud +console "/usr/libexec/getty std.1200" vt100 on secure +# dialup at 1200 baud, no root logins +ttyd0 "/usr/libexec/getty d1200" dialup on group=dialup # 555-1234 +# Mike's terminal: hp2621 +ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on group=dialup # 457 Evans +# John's terminal: vt100 +ttyh1 "/usr/libexec/getty std.9600" vt100 on group=dialup # 459 Evans +# terminal emulate/window system +ttyv0 "/usr/local/bin/xterm -display :0" xterm on window="/usr/local/bin/X :0" +.Ed +.Sh SEE ALSO +.Xr login 1 , +.Xr getttyent 3 , +.Xr nmdm 4 , +.Xr uart 4 , +.Xr ucom 4 , +.Xr gettytab 5 , +.Xr login.conf 5 , +.Xr termcap 5 , +.Xr getty 8 , +.Xr init 8 , +.Xr pam_securetty 8 , +.Xr pstat 8 +.Sh HISTORY +A +.Nm +file appeared in +.At v6 . |