package/sash/src/reboot.c

   1 /* shutdown.c:
   2  *
   3  * Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * JUN/99 -- copied from shutdown.c to make new reboot command.
  11  *           (gerg@snapgear.com)
  12  * AUG/99 -- added delay option to reboot
  13  */
  14
  15 #include <stdlib.h>
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <fcntl.h>
  19 #include <sys/types.h>
  20
  21 #include <sys/stat.h>
  22 #include <dirent.h>
  23 #include <pwd.h>
  24 #include <grp.h>
  25 #include <time.h>
  26 #include <signal.h>
  27 #include <unistd.h>
  28
  29 #include <getopt.h>
  30 #include <sys/reboot.h>
  31
  32 int main(int argc, char *argv[])
  33 {
  34         int delay = 0; /* delay in seconds before rebooting */
  35         int rc;
  36         int force = 0;
  37
  38         while ((rc = getopt(argc, argv, "h?d:f")) > 0) {
  39                 switch (rc) {
  40                 case 'd':
  41                         delay = atoi(optarg);
  42                         break;
  43                 case 'f':
  44                         force = 1;
  45                         break;
  46                 case 'h':
  47                 case '?':
  48                 default:
  49                         printf("usage: reboot [-h] [-d <delay>] [-f]\n");
  50                         exit(0);
  51                         break;
  52                 }
  53         }
  54
  55         if(delay > 0)
  56                 sleep(delay);
  57
  58         kill(1, SIGTSTP);
  59         sync();
  60         signal(SIGTERM,SIG_IGN);
  61         signal(SIGHUP,SIG_IGN);
  62         setpgrp();
  63         kill(-1, SIGTERM);
  64         sleep(1);
  65         kill(-1, SIGHUP);
  66         sleep(1);
  67         sync();
  68         sleep(1);
  69         reboot(0x01234567);
  70         exit(0); /* Shrug */
  71 }