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/* vi: set sw=4 ts=4: */
/*
* Mini reboot implementation for busybox
*
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
* Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org>
*
* 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.
*
* This program 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 02111-1307 USA
*
*/
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include "busybox.h"
#if (__GNU_LIBRARY__ > 5) || defined(__dietlibc__)
#include <sys/reboot.h>
#define init_reboot(magic) reboot(magic)
#else
#define init_reboot(magic) reboot(0xfee1dead, 672274793, magic)
#endif
#ifndef RB_ENABLE_CAD
static const int RB_ENABLE_CAD = 0x89abcdef;
static const int RB_AUTOBOOT = 0x01234567;
#endif
extern int reboot_main(int argc, char **argv)
{
int delay = 0; /* delay in seconds before rebooting */
int rc;
while ((rc = getopt(argc, argv, "d:")) > 0) {
switch (rc) {
case 'd':
delay = atoi(optarg);
break;
default:
bb_show_usage();
break;
}
}
if(delay > 0)
sleep(delay);
#ifdef CONFIG_USER_INIT
/* Don't kill ourself */
signal(SIGTERM,SIG_IGN);
signal(SIGHUP,SIG_IGN);
setpgrp();
/* Allow Ctrl-Alt-Del to reboot system. */
init_reboot(RB_ENABLE_CAD);
message(CONSOLE|LOG, "\n\rThe system is going down NOW !!\n");
sync();
/* Send signals to every process _except_ pid 1 */
message(CONSOLE|LOG, "\rSending SIGTERM to all processes.\n");
kill(-1, SIGTERM);
sleep(1);
sync();
message(CONSOLE|LOG, "\rSending SIGKILL to all processes.\n");
kill(-1, SIGKILL);
sleep(1);
sync();
if (kernelVersion > 0 && kernelVersion <= KERNEL_VERSION(2,2,11)) {
/* bdflush, kupdate not needed for kernels >2.2.11 */
bdflush(1, 0);
sync();
}
init_reboot(RB_AUTOBOOT);
exit(0); /* Shrug */
#else
#ifdef CONFIG_FEATURE_INITRD
{
/* don't assume init's pid == 1 */
long *pid = find_pid_by_name("init");
if (!pid || *pid<=0)
pid = find_pid_by_name("linuxrc");
if (!pid || *pid<=0)
bb_error_msg_and_die("no process killed");
fflush(stdout);
return(kill(*pid, SIGTERM));
}
#else
return(kill(1, SIGTERM));
#endif
#endif
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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