/* vi: set sw=4 ts=4: */
/*
- * Mini halt implementation for busybox
+ * Poweroff reboot and halt, oh my.
*
- * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ * Copyright 2006 by Rob Landley <rob@landley.net>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPL version 2, see file LICENSE in this tarball for details.
*/
-#include <signal.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <sys/reboot.h>
#include "busybox.h"
-#include "init_shared.h"
-
+#include <sys/reboot.h>
-extern int halt_main(int argc, char **argv)
+int halt_main(int argc, char *argv[]);
+int halt_main(int argc, char *argv[])
{
- char *delay; /* delay in seconds before rebooting */
+ 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();
- if(bb_getopt_ulflags(argc, argv, "d:", &delay)) {
- sleep(atoi(delay));
- }
+ /* 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]);
- return ENABLE_INIT ? kill(1,SIGUSR1) : bb_shutdown_system(RB_HALT_SYSTEM);
+ if (rc)
+ bb_error_msg("no");
+ return rc;
}