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;
+}