X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=init%2Fhalt.c;h=d5c22a8ac5f72572b5d7e2f13505cdea9f0e16cd;hb=32773aca55a25b6102b0169a6c160ad52831181a;hp=7e663227c6ede1641e66fffff3edf8b77e5d4369;hpb=cad5364599eb5062d59e0c397ed638ddd61a8d5d;p=oweals%2Fbusybox.git

diff --git a/init/halt.c b/init/halt.c
index 7e663227c..d5c22a8ac 100644
--- a/init/halt.c
+++ b/init/halt.c
@@ -1,41 +1,59 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Mini halt implementation for busybox
+ * Poweroff reboot and halt, oh my.
  *
- * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
- * Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 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 <signal.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[])
 {
-#ifdef CONFIG_FEATURE_INITRD
-	/* don't assume init's pid == 1 */
-	long *pid = find_pid_by_name("init");
-	if (!pid || *pid<=0) {
-		pid = find_pid_by_name("linuxrc");
-		if (!pid || *pid<=0)
-			bb_error_msg_and_die("no process killed");
-	}
-	return(kill(*pid, SIGUSR1));
-#else
-	return(kill(1, SIGUSR1));
+	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;
 }