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gerrit.nordix.org / codeaurora / busybox / 50e77e1cc12d18716d1ab371ba4b145706e5192d / . / init / halt.c
blob: 3ab41f1f2998e6beaf4a340befadc032c913a353 [file] [log] [blame]
Erik Andersene49d5ec2000-02-08 19:58:47 +0000[diff] [blame]1/* vi: set sw=4 ts=4: */
Eric Andersenc4996011999-10-20 22:08:37 +0000[diff] [blame]2/*
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]3 * Poweroff reboot and halt, oh my.
Eric Andersenc4996011999-10-20 22:08:37 +0000[diff] [blame]4 *
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]5 * Copyright 2006 by Rob Landley <rob@landley.net>
Eric Andersenc4996011999-10-20 22:08:37 +0000[diff] [blame]6 *
Rob Landleye9a7a622006-09-22 02:52:41 +0000[diff] [blame]7 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
Eric Andersenc4996011999-10-20 22:08:37 +0000[diff] [blame]8 */
9
Bernhard Reutner-Fischere15d7572006-06-02 20:56:16 +0000[diff] [blame]10#include "busybox.h"
Eric Andersen02462222003-07-22 09:41:39 +0000[diff] [blame]11#include <sys/reboot.h>
Eric Andersencc8ed391999-10-05 16:24:54 +0000[diff] [blame]12
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]13int halt_main(int argc, char *argv[])
Eric Andersencc8ed391999-10-05 16:24:54 +0000[diff] [blame]14{
Bernhard Reutner-Fischerd765ee52006-05-26 20:34:02 +0000[diff] [blame]15 static const int magic[] = {
16#ifdef RB_HALT_SYSTEM
17RB_HALT_SYSTEM,
18#elif defined RB_HALT
19RB_HALT,
20#endif
21#ifdef RB_POWER_OFF
22RB_POWER_OFF,
23#elif defined RB_POWERDOWN
24RB_POWERDOWN,
25#endif
26RB_AUTOBOOT
27 };
Rob Landley0a7c8ef2006-02-22 17:01:00 +0000[diff] [blame]28 static const int signals[] = {SIGUSR1, SIGUSR2, SIGTERM};
29
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]30 char *delay = "hpr";
Rob Landley0a7c8ef2006-02-22 17:01:00 +0000[diff] [blame]31 int which, flags, rc = 1;
Eric Andersen02462222003-07-22 09:41:39 +0000[diff] [blame]32
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]33 /* Figure out which applet we're running */
Denis Vlasenko8f8f2682006-10-03 21:00:43 +0000[diff] [blame]34 for(which=0;delay[which]!=*applet_name;which++);
Eric Andersen02462222003-07-22 09:41:39 +0000[diff] [blame]35
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]36 /* Parse and handle arguments */
Denis Vlasenko67b23e62006-10-03 21:00:06 +0000[diff] [blame]37 flags = getopt32(argc, argv, "d:nf", &delay);
Denis Vlasenko13858992006-10-08 12:49:22 +0000[diff] [blame]38 if (flags&1) sleep(xatou(delay));
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]39 if (!(flags&2)) sync();
Bernhard Reutner-Fischere15d7572006-06-02 20:56:16 +0000[diff] [blame]40
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]41 /* Perform action. */
42 if (ENABLE_INIT && !(flags & 4)) {
43 if (ENABLE_FEATURE_INITRD) {
44 long *pidlist=find_pid_by_name("linuxrc");
45 if (*pidlist>0) rc = kill(*pidlist,signals[which]);
46 if (ENABLE_FEATURE_CLEAN_UP) free(pidlist);
47 }
48 if (rc) rc = kill(1,signals[which]);
49 } else rc = reboot(magic[which]);
50
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000[diff] [blame]51 if (rc) bb_error_msg("no");
Rob Landley64612912006-01-30 08:31:37 +0000[diff] [blame]52 return rc;
Eric Andersencc8ed391999-10-05 16:24:54 +0000[diff] [blame]53}