add support for a script called /etc/rc.shutdown

diff --git a/sbin/reboot/reboot.8 b/sbin/reboot/reboot.8
index 18471f6..4270813 100644 (file)
--- a/sbin/reboot/reboot.8
+++ b/sbin/reboot/reboot.8
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: reboot.8,v 1.2 1996/06/23 14:32:12 deraadt Exp $
+.\"    $OpenBSD: reboot.8,v 1.3 1997/04/11 09:06:40 deraadt Exp $
 .\"    $NetBSD: reboot.8,v 1.3 1995/10/05 05:36:21 mycroft Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
@@ -52,9 +52,9 @@ The
 .Nm halt
 and
 .Nm reboot
-utilities flush the file system cache to disk, send all running processes
-a SIGTERM (and subsequently a SIGKILL) and, respectively, halt or restart
-the system.
+utilities flush the file system cache to disk, run the system
+shutdown script, send all running processes a SIGTERM (and
+subsequently a SIGKILL) and, respectively, halt or restart the system.
 The action is logged, including entering a shutdown record into the login
 accounting file.
 .Pp
@@ -86,6 +86,9 @@ Normally, the
 .Xr shutdown 8
 utility is used when the system needs to be halted or restarted, giving
 users advance warning of their impending doom.
+.Sh FILES
+.Pa /etc/rc.shutdown
+- The script which is run at shutdown time.
 .Sh SEE ALSO
 .Xr sync 1 ,
 .Xr utmp 5 ,

diff --git a/sbin/reboot/reboot.c b/sbin/reboot/reboot.c
index 99eb788..91db355 100644 (file)
--- a/sbin/reboot/reboot.c
+++ b/sbin/reboot/reboot.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: reboot.c,v 1.6 1997/01/17 07:12:20 millert Exp $      */
+/*     $OpenBSD: reboot.c,v 1.7 1997/04/11 09:06:42 deraadt Exp $      */
 /*     $NetBSD: reboot.c,v 1.8 1995/10/05 05:36:22 mycroft Exp $       */
 
 /*
@@ -44,7 +44,7 @@ static char copyright[] =
 #if 0
 static char sccsid[] = "@(#)reboot.c   8.1 (Berkeley) 6/5/93";
 #else
-static char rcsid[] = "$OpenBSD: reboot.c,v 1.6 1997/01/17 07:12:20 millert Exp $";
+static char rcsid[] = "$OpenBSD: reboot.c,v 1.7 1997/04/11 09:06:42 deraadt Exp $";
 #endif
 #endif /* not lint */
 
@@ -57,10 +57,13 @@ static char rcsid[] = "$OpenBSD: reboot.c,v 1.6 1997/01/17 07:12:20 millert Exp
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <paths.h>
 
 void err __P((const char *fmt, ...));
 void usage __P((void));
 
+#define _PATH_RCSHUTDOWN       "/etc/rc.shutdown"
+
 int dohalt;
 
 int
@@ -147,6 +150,20 @@ main(argc, argv)
        /* Ignore the SIGHUP we get when our parent shell dies. */
        (void)signal(SIGHUP, SIG_IGN);
 
+       if (access(_PATH_RCSHUTDOWN, R_OK) != -1) {
+               pid_t pid;
+
+               switch ((pid = fork())) {
+               case -1:
+                       break;
+               case 0:
+                       execl(_PATH_BSHELL, "sh", _PATH_RCSHUTDOWN, NULL);
+                       exit(1);
+               default:
+                       waitpid(pid, NULL, 0);
+               }
+       }
+
        /* Send a SIGTERM first, a chance to save the buffers. */
        if (kill(-1, SIGTERM) == -1) {
                /*