From fe3da0a3c4fa7ba0f8f0522736d7431d585b1afd Mon Sep 17 00:00:00 2001
From: "William F. Jolitz" <wjolitz@soda.berkeley.edu>
Date: Thu, 6 Jun 1991 18:35:52 -0800
Subject: [PATCH] 386BSD 0.1 development Work on file
 usr/src/usr.sbin/update/update.c

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1
---
 usr/src/usr.sbin/update/update.c | 75 ++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 usr/src/usr.sbin/update/update.c

diff --git a/usr/src/usr.sbin/update/update.c b/usr/src/usr.sbin/update/update.c
new file mode 100644
index 0000000000..8d6ddda7f4
--- /dev/null
+++ b/usr/src/usr.sbin/update/update.c
@@ -0,0 +1,75 @@
+/*-
+ * Copyright (c) 1987, 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1987, 1990 The Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)update.c	5.1 (Berkeley) 6/6/91";
+#endif /* not lint */
+
+#include <sys/time.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+main()
+{
+	struct itimerval value;
+	void mysync();
+
+	daemon(0, 0);
+
+	(void)signal(SIGALRM, mysync);
+
+	value.it_interval.tv_sec = 30;
+	value.it_interval.tv_usec = 0;
+	value.it_value = value.it_interval;
+	if (setitimer(ITIMER_REAL, &value, NULL)) {
+		perror("update: setitimer");
+		exit(1);
+	}
+	for (;;)
+		sigpause(sigblock(0L));
+	/* NOTREACHED */
+}
+
+void
+mysync()
+{
+	(void)sync();
+}
-- 
2.20.1