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60 lines
1.3 KiB
C
60 lines
1.3 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 GPL version 2, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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#include <sys/reboot.h>
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int halt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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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;
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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; "hpr"[which] != *applet_name; which++);
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/* Parse and handle arguments */
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flags = getopt32(argv, "d:nf", &delay);
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if (flags & 1) sleep(xatou(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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pid_t *pidlist = find_pid_by_name("linuxrc");
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if (pidlist[0] > 0)
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rc = kill(pidlist[0], signals[which]);
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if (ENABLE_FEATURE_CLEAN_UP)
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free(pidlist);
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}
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if (rc)
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rc = kill(1, signals[which]);
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} else
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rc = reboot(magic[which]);
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if (rc)
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bb_error_msg("no");
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return rc;
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}
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