/* vi: set sw=4 ts=4: */ /* * Stuff shared between init, reboot, halt, and poweroff * * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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 <sys/reboot.h> #include <sys/syslog.h> #include "busybox.h" #include "init_shared.h" extern int kill_init(int sig) { #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"); } return(kill(*pid, sig)); #else return(kill(1, sig)); #endif } #ifndef CONFIG_INIT const char * const bb_shutdown_format = "\r%s\n"; extern int bb_shutdown_system(unsigned long magic) { int pri = LOG_KERN|LOG_NOTICE|LOG_FACMASK; const char *message; /* Don't kill ourself */ signal(SIGTERM,SIG_IGN); signal(SIGHUP,SIG_IGN); setpgrp(); /* Allow Ctrl-Alt-Del to reboot system. */ #ifndef RB_ENABLE_CAD #define RB_ENABLE_CAD 0x89abcdef #endif reboot(RB_ENABLE_CAD); openlog(bb_applet_name, 0, pri); message = "\nThe system is going down NOW !!"; syslog(pri, "%s", message); printf(bb_shutdown_format, message); sync(); /* Send signals to every process _except_ pid 1 */ message = "Sending SIGTERM to all processes."; syslog(pri, "%s", message); printf(bb_shutdown_format, message); kill(-1, SIGTERM); sleep(1); sync(); message = "Sending SIGKILL to all processes."; syslog(pri, "%s", message); printf(bb_shutdown_format, message); kill(-1, SIGKILL); sleep(1); sync(); reboot(magic); return 0; /* Shrug */ } #endif