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/* Stubby version of getty for Hurd
Copyright (C) 1996 Free Software Foundation, Inc.
Written by Michael I. Bushnell, p/BSG.
This file is part of the GNU Hurd.
The GNU Hurd 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, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#include <syslog.h>
#include <unistd.h>
#include <ttyent.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <error.h>
#include <sys/utsname.h>
#include <stdlib.h>
/* XXX */
extern int login_tty (int);
#define _PATH_DEV "/dev"
#define _PATH_LOGIN "/bin/login"
/* Print a suitable welcome banner */
void
print_banner (int fd, char *ttyname)
{
struct utsname u;
char *s;
int len, cc;
char *hostname;
if (uname (&u))
u.sysname[0] = u.release[0] = '\0';
len = 50;
hostname = malloc (len);
cc = gethostname (hostname, len);
if (cc == -1)
hostname[0] = '\0';
while (cc >= len)
{
hostname = realloc (hostname, len *= 2);
cc = gethostname (hostname, len);
if (cc == -1)
{
hostname[0] = '\0';
break;
}
}
cc = asprintf (&s, "\r\n\n%s %s (%s) (%s)\r\n\n",
u.sysname, u.release, hostname, ttyname);
write (fd, s, cc);
}
int
main (int argc, char **argv)
{
char *linespec, *ttyname;
int tty;
struct ttyent *tt;
char *arg;
openlog ("getty", LOG_ODELAY|LOG_CONS|LOG_PID, LOG_AUTH);
/* Nothing to do .... */
if (argc != 3)
{
syslog (LOG_ERR, "Bad syntax");
closelog ();
exit (1);
}
/* Don't do anything with this for now. */
linespec = argv[1];
tt = getttynam (argv[1]);
asprintf (&ttyname, "%s/%s", _PATH_DEV, argv[2]);
chown (ttyname, 0, 0);
chmod (ttyname, 0600);
revoke (ttyname);
sleep (2); /* leave DTR down for a bit */
do
{
tty = open (ttyname, O_RDWR);
if (tty == -1)
{
syslog (LOG_ERR, "%s: %m", ttyname);
closelog ();
sleep (60);
}
}
while (tty == -1);
print_banner (tty, ttyname);
login_tty (tty);
asprintf (&arg, "TERM=%s", tt ? tt->ty_type : "unknown");
if (tt && strcmp (tt->ty_type, "dialup") == 0)
/* Dialup lines time out (which is login's default). */
execl (_PATH_LOGIN, "login", "-e", arg, 0);
else
/* Hardwired lines don't. */
execl (_PATH_LOGIN, "login", "-e", arg, "-aNOAUTH_TIMEOUT", 0);
error (99, errno, "execl");
return 1;
}
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