| /* vi: set sw=4 ts=4: */ |
| /* |
| * Poweroff reboot and halt, oh my. |
| * |
| * Copyright 2006 by Rob Landley <rob@landley.net> |
| * |
| * Licensed under GPL version 2, see file LICENSE in this tarball for details. |
| */ |
| |
| #include "busybox.h" |
| #include <sys/reboot.h> |
| |
| int halt_main(int argc, char *argv[]); |
| int halt_main(int argc, char *argv[]) |
| { |
| static const int magic[] = { |
| #ifdef RB_HALT_SYSTEM |
| RB_HALT_SYSTEM, |
| #elif defined RB_HALT |
| RB_HALT, |
| #endif |
| #ifdef RB_POWER_OFF |
| RB_POWER_OFF, |
| #elif defined RB_POWERDOWN |
| RB_POWERDOWN, |
| #endif |
| RB_AUTOBOOT |
| }; |
| static const int signals[] = { SIGUSR1, SIGUSR2, SIGTERM }; |
| |
| char *delay; |
| int which, flags, rc = 1; |
| |
| /* Figure out which applet we're running */ |
| for (which = 0; "hpr"[which] != *applet_name; which++); |
| |
| /* Parse and handle arguments */ |
| flags = getopt32(argc, argv, "d:nf", &delay); |
| if (flags & 1) sleep(xatou(delay)); |
| if (!(flags & 2)) sync(); |
| |
| /* Perform action. */ |
| if (ENABLE_INIT && !(flags & 4)) { |
| if (ENABLE_FEATURE_INITRD) { |
| pid_t *pidlist = find_pid_by_name("linuxrc"); |
| if (pidlist[0] > 0) |
| rc = kill(pidlist[0], signals[which]); |
| if (ENABLE_FEATURE_CLEAN_UP) |
| free(pidlist); |
| } |
| if (rc) |
| rc = kill(1, signals[which]); |
| } else |
| rc = reboot(magic[which]); |
| |
| if (rc) |
| bb_error_msg("no"); |
| return rc; |
| } |