error ("%s: can't exec %s: %s", login_program, tty, sys_errlist[errno]);
exit (0);
}
-diff -Nru mingetty-0.9.4.orig/mingetty.c~ mingetty-0.9.4/mingetty.c~
---- mingetty-0.9.4.orig/mingetty.c~ Sun Apr 29 19:38:31 2001
-+++ mingetty-0.9.4/mingetty.c~ Thu Jan 1 01:00:00 1970
-@@ -1,509 +0,0 @@
--/* mingetty.c
-- *
-- * Copyright (C) 1996 Florian La Roche
-- * florian@jurix.jura.uni-sb.de florian@suse.de
-- *
-- * Newer versions should be on susix.jura.uni-sb.de/pub/linux/source/system
-- * or sunsite.unc.edu/pub/Linux/system/Admin/login or /pub/Linux/system/
-- * Daemons/init/.
-- *
-- * utmp-handling is from agetty in util-linux 2.5 (probably from
-- * Peter Orbaek <poe@daimi.aau.dk>)
-- *
-- * S.u.S.E. - GmbH has paid some of the time that was needed to write
-- * this program. Thanks a lot for their support.
-- *
-- * This getty can only be used as console getty. It is very small, but
-- * should be very reliable. For a modem getty, I'd also use nothing else
-- * but mgetty.
-- *
-- * Usage: mingetty [--noclear] tty
-- * Example entry in /etc/inittab: 1:123:respawn:/sbin/mingetty tty1
-- *
-- * This program is free software; you can redistribute it and/or
-- * modify it under the terms of the GNU General Public License
-- * as published by the Free Software Foundation; either version
-- * 2 of the License, or (at your option) any later version.
-- *
-- */
--
--#define DEBUG_THIS 0
--
--#include <stdio.h>
--#include <stdlib.h>
--#include <unistd.h>
--#include <string.h>
--#include <sys/ioctl.h>
--#include <errno.h>
--#include <sys/stat.h>
--#include <sys/file.h>
--#include <signal.h>
--#include <fcntl.h>
--#include <stdarg.h>
--#include <ctype.h>
--#include <utmp.h>
--#include <getopt.h>
--
--#ifndef _PATH_LOGIN
--#define _PATH_LOGIN "/bin/login"
--#endif
--
--#ifndef _PATH_SSH
--#define _PATH_SSH "/usr/bin/ssh"
--#endif
--
--#ifdef linux
--#include <sys/param.h>
--#define USE_SYSLOG
--#endif
--
-- /* If USE_SYSLOG is undefined all diagnostics go directly to /dev/console. */
--#ifdef USE_SYSLOG
--#include <sys/syslog.h>
--#endif
--
--#define ISSUE "/etc/issue" /* displayed before the login prompt */
--#include <sys/utsname.h>
--#include <time.h>
--
--#define LOGIN " login: " /* login prompt */
--
--/* name of this program (argv[0]) */
--static char *progname;
--/* on which tty line are we sitting? (e.g. tty1) */
--static char *tty;
--/* some information about this host */
--static struct utsname uts;
--/* the hostname */
--static char hn[MAXHOSTNAMELEN + 1];
--/* process ID of this program */
--static pid_t pid;
--/* current time */
--static time_t cur_time;
--/* do not send a reset string to the terminal ? */
--static int noclear = 0;
--/* Print the whole string of gethostname() instead of just until the next "." */
--static int longhostname = 0;
--/* Set mono terminal type */
--static int mono_term = 0;
--/* Log onto remote host */
--static int remote_login = 0;
--/* Remote hostname */
--static char remote_host[1024];
--/* Do we use user's login app? */
--static int another_login = 0;
--/* Login program */
--static char login_program[1024];
--
--/*
-- * output error messages
-- */
--static void error (const char *fmt, ...)
--{
-- va_list va_alist;
-- char buf[256], *bp;
--#ifndef USE_SYSLOG
-- int fd;
--#endif
--
--#ifdef USE_SYSLOG
-- buf[0] = '\0';
-- bp = buf;
--#else
-- strcpy (buf, progname);
-- strcat (buf, ": ");
-- bp = buf + strlen (buf);
--#endif
--
-- va_start (va_alist, fmt);
-- vsprintf (bp, fmt, va_alist);
-- va_end (va_alist);
--
--#ifdef USE_SYSLOG
-- openlog (progname, LOG_PID, LOG_AUTH);
-- syslog (LOG_ERR, buf);
-- closelog ();
--#else
-- strcat (bp, "\r\n");
-- if ((fd = open ("/dev/console", 1)) >= 0) {
-- write (fd, buf, strlen (buf));
-- close (fd);
-- }
--#endif
-- exit (1);
--}
--
--/*
-- * update_utmp - update our utmp entry
-- *
-- * The utmp file holds miscellaneous information about things started by
-- * /sbin/init and other system-related events. Our purpose is to update
-- * the utmp entry for the current process, in particular the process
-- * type and the tty line we are listening to. Return successfully only
-- * if the utmp file can be opened for update, and if we are able to find
-- * our entry in the utmp file.
-- */
--static void update_utmp (void)
--{
-- struct utmp ut;
-- int ut_fd;
-- struct utmp *utp;
-- void locktimeout();
--
-- utmpname (_PATH_UTMP);
-- setutent ();
-- while ((utp = getutent ()))
-- if (utp->ut_type == INIT_PROCESS && utp->ut_pid == pid)
-- break;
--
-- if (utp) {
-- memcpy (&ut, utp, sizeof (ut));
-- } else {
-- /* some inits don't initialize utmp... */
-- /* XXX we should print out a warning message */
-- memset (&ut, 0, sizeof (ut));
-- strncpy (ut.ut_id, tty + 3, sizeof (ut.ut_id));
-- }
-- endutent ();
--
-- strncpy (ut.ut_user, "LOGIN", sizeof (ut.ut_user));
-- strncpy (ut.ut_line, tty, sizeof (ut.ut_line));
-- ut.ut_time = cur_time;
-- ut.ut_type = LOGIN_PROCESS;
-- ut.ut_pid = pid;
--
-- pututline (&ut);
-- endutent ();
--
-- if ((ut_fd = open (_PATH_WTMP, O_APPEND | O_WRONLY)) >= 0) {
-- (void)signal(SIGALRM, locktimeout);
-- (void)alarm(3);
-- flock (ut_fd, LOCK_EX);
-- (void)alarm(0);
-- write (ut_fd, &ut, sizeof (ut));
-- flock (ut_fd, LOCK_UN);
-- close (ut_fd);
-- }
--}
--
--/* open_tty - set up tty as standard { input, output, error } */
--static void open_tty (void)
--{
-- struct sigaction sa;
-- char buf[20];
-- int fd;
--
-- /* Set up new standard input. */
-- strcpy (buf, "/dev/");
-- strcat (buf, tty);
-- if (chown (buf, 0, 0) || chmod (buf, 0600))
-- error ("%s: %s", buf, sys_errlist[errno]);
--
-- sa.sa_handler = SIG_IGN;
-- sa.sa_flags = 0;
-- sigemptyset (&sa.sa_mask);
-- sigaction (SIGHUP, &sa, NULL);
--
-- /* vhangup() will replace all open file descriptors that point to our
-- controlling tty by a dummy that will deny further reading/writing
-- to our device. It will also reset the tty to sane defaults, so we
-- don't have to modify the tty device for sane settings.
-- We also get a SIGHUP/SIGCONT.
-- */
-- if ((fd = open (buf, O_RDWR, 0)) < 0
-- || ioctl (fd, TIOCSCTTY, (void *)1) == -1)
-- error ("%s: cannot open tty: %s", buf, sys_errlist[errno]);
-- if (!isatty (fd))
-- error ("%s: not a tty", buf);
--
-- vhangup ();
-- /* Get rid of the present stdout/stderr. */
-- close (2);
-- close (1);
-- close (0);
-- close (fd);
-- /* ioctl (0, TIOCNOTTY, (char *)1); */
--
-- if (open (buf, O_RDWR, 0) != 0)
-- error ("%s: cannot open as standard input: %s", buf,
-- sys_errlist[errno]);
--
-- /* Set up standard output and standard error file descriptors. */
-- if (dup (0) != 1 || dup (0) != 2)
-- error ("%s: dup problem: %s", buf, sys_errlist[errno]);
--
-- /* Write a reset string to the terminal. This is very linux-specific
-- and should be checked for other systems. */
-- if (! noclear)
-- write (0, "\033c", 2);
--
-- sa.sa_handler = SIG_DFL;
-- sa.sa_flags = 0;
-- sigemptyset (&sa.sa_mask);
-- sigaction (SIGHUP, &sa, NULL);
--
--#if DEBUG_THIS
-- printf ("session=%d, pid=%d, pgid=%d\n", getsid (0), getpid (),
-- getpgid (0));
--#endif
--}
--
--static void output_special_char (unsigned char c)
--{
-- switch (c) {
-- case 's':
-- printf ("%s", uts.sysname);
-- break;
-- case 'n':
-- printf ("%s", uts.nodename);
-- break;
-- case 'r':
-- printf ("%s", uts.release);
-- break;
-- case 'v':
-- printf ("%s", uts.version);
-- break;
-- case 'm':
-- printf ("%s", uts.machine);
-- break;
-- case 'o':
-- printf ("%s", uts.domainname);
-- break;
--#if 1
-- case 'd':
-- case 't':
-- {
-- char *weekday[] =
-- {"Sun", "Mon", "Tue", "Wed", "Thu",
-- "Fri", "Sat"};
-- char *month[] =
-- {"Jan", "Feb", "Mar", "Apr", "May",
-- "Jun", "Jul", "Aug", "Sep", "Oct",
-- "Nov", "Dec"};
-- time_t now;
-- struct tm *tm;
--
-- time (&now);
-- tm = localtime (&now);
--
-- if (c == 'd')
-- printf ("%s %s %d %d",
-- weekday[tm->tm_wday], month[tm->tm_mon],
-- tm->tm_mday,
-- tm->tm_year < 70 ? tm->tm_year + 2000 :
-- tm->tm_year + 1900);
-- else
-- printf ("%02d:%02d:%02d",
-- tm->tm_hour, tm->tm_min, tm->tm_sec);
--
-- break;
-- }
--#else
-- case 'd':
-- case 't':
-- {
-- char buff[20];
-- struct tm *tm = localtime (&cur_time);
-- strftime (buff, sizeof (buff),
-- c == 'd'? "%a %b %d %Y" : "%X", tm);
-- fputs (buff, stdout);
-- break;
-- }
--#endif
--
-- case 'l':
-- printf ("%s", tty);
-- break;
-- case 'u':
-- case 'U':
-- {
-- int users = 0;
-- struct utmp *ut;
-- setutent ();
-- while ((ut = getutent ()))
-- if (ut->ut_type == USER_PROCESS)
-- users++;
-- endutent ();
-- printf ("%d", users);
-- if (c == 'U')
-- printf (" user%s", users == 1 ? "" : "s");
-- break;
-- }
-- default:
-- putchar (c);
-- }
--}
--
--/* do_prompt - show login prompt, optionally preceded by /etc/issue contents */
--static void do_prompt (void)
--{
--#if ! OLD
-- FILE *fd;
--#else
-- int fd;
--#endif
-- char c;
--
-- write (1, "\n", 1); /* start a new line */
--#if ! OLD
-- if ((fd = fopen (ISSUE, "r"))) {
-- while ((c = getc (fd)) != EOF) {
-- if (c == '\\')
-- output_special_char (getc(fd));
-- else
-- putchar (c);
-- }
-- fflush (stdout);
-- fclose (fd);
-- }
--#else
-- if ((fd = open (ISSUE, O_RDONLY)) >= 0) {
-- close (fd);
-- }
--#endif
-- write (1, hn, strlen (hn));
-- write (1, LOGIN, sizeof (LOGIN) - 1);
--}
--
--/* get_logname - get user name, establish speed, erase, kill, eol */
--static char *get_logname (void)
--{
-- static char logname[40];
-- char *bp;
-- unsigned char c;
--
-- ioctl (0, TCFLSH, 0); /* flush pending input */
--
-- for (*logname = 0; *logname == 0;) {
-- do_prompt ();
-- for (bp = logname;;) {
-- if (read (0, &c, 1) < 1) {
-- if (errno == EINTR || errno == EIO
-- || errno == ENOENT)
-- exit (0);
-- error ("%s: read: %s", tty, sys_errlist[errno]);
-- }
-- if (c == '\n' || c == '\r') {
-- *bp = 0;
-- break;
-- } else if (!isprint (c))
-- error ("%s: invalid character %c in login name",
-- tty, c);
-- else if (bp - logname >= sizeof (logname) - 1)
-- error ("%s: too long login name", tty);
-- else
-- *bp++ = c;
-- }
-- }
-- return logname;
--}
--
--static void usage (void)
--{
-- error ("usage: '%s tty' with e.g. tty=tty1", progname);
--}
--
--static struct option const long_options[] = {
-- { "noclear", no_argument, &noclear, 1},
-- { "long-hostname", no_argument, &longhostname, 1},
-- { "mono", no_argument, &mono_term, 1},
-- { "remote-host", required_argument, NULL, 2},
-- { "login-program", required_argument, NULL, 3},
-- { 0, 0, 0, 0 }
--};
--
--/*
-- * main program
-- */
--int main (int argc, char **argv)
--{
-- char *logname, *s;
-- int option_index = 0;
-- int c;
--
-- progname = argv[0];
-- uname (&uts);
-- pid = getpid ();
-- time (&cur_time);
--
-- while ((c = getopt_long (argc, argv, "", long_options, &option_index))
-- != EOF) {
-- switch (c) {
-- case 0:
-- break;
-- case 2:
-- remote_login = 1;
-- strncpy(remote_host, optarg, 1024);
-- remote_host[1023] = '\0';
-- break;
-- case 3:
-- another_login = 1;
-- strncpy(login_program, optarg, 1024);
-- login_program[1023] = '\0';
-- break;
-- default:
-- usage ();
-- }
-- }
--
-- if (!remote_login)
-- gethostname (hn, MAXHOSTNAMELEN);
-- else {
-- strncpy(hn, remote_host, MAXHOSTNAMELEN);
-- hn[MAXHOSTNAMELEN] = '\0';
-- if ((!longhostname)&&(strchr(hn,'.')))
-- *(strchr(hn,'.')) = '\0';
-- }
--
-- if (mono_term)
-- putenv ("TERM=linux-m");
-- else
-- putenv ("TERM=linux");
--
-- if (!longhostname && (s = strchr(hn, '.')))
-- *s = '\0';
-- tty = argv[optind];
-- if (! tty)
-- usage ();
--
-- update_utmp ();
-- open_tty ();
--#if 0
--#ifdef linux
-- ioctl (0, TIOCSPGRP, &pid);
--#endif
--#endif
-- /* flush input and output queues, important for modems */
-- ioctl (0, TCFLSH, 2);
--
-- while ((logname = get_logname ()) == 0);
--
-- if (!remote_login) {
-- if (!another_login)
-- strncpy(login_program, _PATH_LOGIN, 1024);
-- execl (login_program, login_program, "--", logname, NULL);
-- } else {
-- if (!another_login)
-- strncpy(login_program, _PATH_SSH, 1024);
-- execl (login_program, login_program, "-l", logname, remote_host, NULL);
-- }
-- error ("%s: can't exec %s: %s", login_program, tty, sys_errlist[errno]);
-- exit (0);
--}
--
--
--void locktimeout()
--{
--#ifdef USE_SYSLOG
-- openlog (progname, LOG_PID, LOG_AUTH);
-- syslog(LOG_ALERT, "Lock failed on wtmp");
-- closelog ();
--#else
-- int fd;
-- char buf[]="Lock failed on wtmp\n";
-- if ((fd = open ("/dev/console", 1)) >= 0) {
-- write (fd, buf, strlen (buf));
-- close (fd);
-- }
--#endif
--}
projects / packages / mingetty.git / commitdiff