backout previous change (removal of pidfile(3) call). requested by core.

usr.sbin/rtsold/rtsold.8

@@ -1,4 +1,4 @@
-.\"	$NetBSD: rtsold.8,v 1.19 2004/01/03 13:10:27 wiz Exp $
+.\"	$NetBSD: rtsold.8,v 1.20 2004/01/08 02:48:43 itojun Exp $
 .\"	$KAME: rtsold.8,v 1.17 2001/07/09 22:30:37 itojun Exp $
 .\"
 .\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -28,7 +28,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd January 3, 2004
+.Dd May 17, 1998
 .Dt RTSOLD 8
 .Os
 .\"
@@ -188,6 +188,9 @@ program exits 0 on success, and \*[Gt]0 on failures.
 .\"
 .Sh FILES
 .Bl -tag -width /var/run/rtsold.dump -compact
+.It Pa /var/run/rtsold.pid
+the pid of the currently running
+.Nm rtsold .
 .It Pa /var/run/rtsold.dump
 dumps internal state on.
 .El

usr.sbin/rtsold/rtsold.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: rtsold.c,v 1.27 2004/01/03 06:16:40 itojun Exp $	*/
+/*	$NetBSD: rtsold.c,v 1.28 2004/01/08 02:48:43 itojun Exp $	*/
 /*	$KAME: rtsold.c,v 1.77 2004/01/03 01:35:13 itojun Exp $	*/
 
 /*
@@ -256,6 +256,15 @@ main(int argc, char **argv)
 		/*NOTREACHED*/
 	}
 
+	/* dump the current pid */
+	if (!once) {
+		if (pidfile(NULL) < 0) {
+			warnmsg(LOG_ERR, __func__,
+			    "failed to open a pid log file: %s",
+			    strerror(errno));
+		}
+	}
+
 	for (;;) {		/* main loop */
 		int e;