/* 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 "busybox.h"#include <signal.h>#include <stdlib.h>#include <unistd.h>#include <getopt.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_CADstatic const int RB_ENABLE_CAD = 0x89abcdef;static const int RB_AUTOBOOT = 0x01234567;#endifextern 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:			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 BB_FEATURE_LINUXRC	{		/* 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)			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: 4tab-width: 4End:*/