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/*
* Guillaume Cottenceau (gc@mandrakesoft.com)
*
* Copyright 2000 MandrakeSoft
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* Portions from Erik Troan (ewt@redhat.com)
*
* Copyright 1996 Red Hat Software
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "log.h"
int testing;
void fatal_error(char *msg)
{
printf("FATAL ERROR IN STAGE1: %s\n\nI can't recover from this, please reboot manually and send bugreport.\n", msg);
while (1);
}
void process_cmdline(void)
{
char buf[512];
int fd;
int size;
log_message("opening /proc/cmdline... ");
if ((fd = open("/proc/cmdline", O_RDONLY, 0)) < 0) fatal_error("could not open /proc/cmdline");
size = read(fd, buf, sizeof(buf) - 1);
buf[size] = '\0';
close(fd);
log_message("\t%s", buf);
}
#ifdef SPAWN_SHELL
/* spawns a shell on console #2 */
void spawn_shell(void)
{
pid_t pid;
int fd;
char * shell_name = "/sbin/sash";
if (!testing)
{
fd = open("/dev/tty2", O_RDWR);
if (fd < 0)
{
log_message("cannot open /dev/tty2 -- no shell will be provided");
return;
}
else
if (access(shell_name, X_OK))
{
log_message("cannot open shell - /usr/bin/sh doesn't exist");
return;
}
if (!(pid = fork()))
{
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
close(fd);
setsid();
if (ioctl(0, TIOCSCTTY, NULL))
perror("could not set new controlling tty");
execl(shell_name, shell_name, NULL);
log_message("execl of %s failed: %s", shell_name, strerror(errno));
}
close(fd);
}
else
log_message("I should be spawning a shell");
}
#endif
int
main(int argc, char **argv)
{
/* getpid() != 1 should work, by linuxrc tends to get a larger pid */
testing = (getpid() > 50);
open_log(testing);
log_message("welcome to the Linux-Mandrake install (stage1, version " VERSION " built " __DATE__ " " __TIME__")");
process_cmdline();
spawn_shell();
printf("Temporary end of stage1 binary -- entering an infinite loop\n");
log_message("Temporary end of stage1 binary -- entering an infinite loop");
while(1);
return 0;
}
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