diff options
Diffstat (limited to 'init/halt.c')
-rw-r--r-- | init/halt.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/init/halt.c b/init/halt.c new file mode 100644 index 000000000..a6cf48bbe --- /dev/null +++ b/init/halt.c @@ -0,0 +1,58 @@ +/* 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[]) +{ + 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; +} |