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56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Poweroff reboot and halt, oh my.
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*
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* Copyright 2006 by Rob Landley <rob@landley.net>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "busybox.h"
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#include <signal.h>
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#include <sys/reboot.h>
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#include <unistd.h>
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int halt_main(int argc, char *argv[])
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{
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static const int magic[] = {
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#ifdef RB_HALT_SYSTEM
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RB_HALT_SYSTEM,
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#elif defined RB_HALT
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RB_HALT,
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#endif
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#ifdef RB_POWER_OFF
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RB_POWER_OFF,
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#elif defined RB_POWERDOWN
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RB_POWERDOWN,
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#endif
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RB_AUTOBOOT
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};
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static const int signals[] = {SIGUSR1, SIGUSR2, SIGTERM};
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char *delay = "hpr";
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int which, flags, rc = 1;
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/* Figure out which applet we're running */
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for(which=0;delay[which]!=*bb_applet_name;which++);
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/* Parse and handle arguments */
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flags = bb_getopt_ulflags(argc, argv, "d:nf", &delay);
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if (flags&1) sleep(atoi(delay));
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if (!(flags&2)) sync();
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/* Perform action. */
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if (ENABLE_INIT && !(flags & 4)) {
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if (ENABLE_FEATURE_INITRD) {
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long *pidlist=find_pid_by_name("linuxrc");
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if (*pidlist>0) rc = kill(*pidlist,signals[which]);
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if (ENABLE_FEATURE_CLEAN_UP) free(pidlist);
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}
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if (rc) rc = kill(1,signals[which]);
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} else rc = reboot(magic[which]);
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if (rc) bb_error_msg("No.");
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return rc;
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}
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