busybox/init/halt.c

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/* vi: set sw=4 ts=4: */
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/*
* Mini halt implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
* 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
*
*/
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#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/reboot.h>
#include "busybox.h"
#include "init_shared.h"
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extern int halt_main(int argc, char **argv)
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{
char *delay; /* delay in seconds before rebooting */
if(bb_getopt_ulflags(argc, argv, "d:", &delay)) {
sleep(atoi(delay));
}
#ifndef CONFIG_INIT
#ifndef RB_HALT_SYSTEM
#define RB_HALT_SYSTEM 0xcdef0123
#endif
return(bb_shutdown_system(RB_HALT_SYSTEM));
#else
return kill_init(SIGUSR1);
#endif
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}