Change license statements (and clean up headers) on some of the files that

[oweals/busybox.git] / init / init_shared.c

diff --git a/init/init_shared.c b/init/init_shared.c
index 842942fe3443cb32cd0e3e73c84d33490e43b7a1..5e46abf09749920b43aa2ea7b8835be33600c1e3 100644 (file)
--- a/init/init_shared.c
+++ b/init/init_shared.c
@@ -1,21 +1,63 @@
-#include <signal.h>
-#include "busybox.h"
+/* vi: set sw=4 ts=4: */
+/*
+ * Stuff shared between init, reboot, halt, and poweroff
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under GPL version 2, see file LICENSE in this tarball for details.
+ */
 
+#include "busybox.h"
+#include <sys/reboot.h>
+#include <sys/syslog.h>
 #include "init_shared.h"
 
-
-extern int kill_init(int sig)
+const char * const init_sending_format = "Sending SIG%s to all processes.";
+#ifndef CONFIG_INIT
+const char * const bb_shutdown_format = "\r%s\n";
+int bb_shutdown_system(unsigned long magic)
 {
-#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, sig));
-#else
-       return(kill(1, sig));
+       int pri = LOG_KERN|LOG_NOTICE|LOG_FACMASK;
+       const char *message;
+
+       /* Don't kill ourself */
+       signal(SIGTERM,SIG_IGN);
+       signal(SIGHUP,SIG_IGN);
+       bb_setpgrp;
+
+       /* Allow Ctrl-Alt-Del to reboot system. */
+#ifndef RB_ENABLE_CAD
+#define RB_ENABLE_CAD  0x89abcdef
 #endif
+       reboot(RB_ENABLE_CAD);
+
+       openlog(bb_applet_name, 0, pri);
+
+       message = "\nThe system is going down NOW !!";
+       syslog(pri, "%s", message);
+       printf(bb_shutdown_format, message);
+
+       sync();
+
+       /* Send signals to every process _except_ pid 1 */
+       message = "TERM";
+       syslog(pri, init_sending_format, message);
+       printf(bb_shutdown_format, message);
+
+       kill(-1, SIGTERM);
+       sleep(1);
+       sync();
+
+       message = "KILL";
+       syslog(pri, init_sending_format, message);
+       printf(bb_shutdown_format, message);
+
+       kill(-1, SIGKILL);
+       sleep(1);
+
+       sync();
+
+       reboot(magic);
+       return 0; /* Shrug */
 }
+#endif