1 files changed, 54 insertions, 0 deletions
diff --git a/sutils/update.c b/sutils/update.c
new file mode 100644
index 00000000..0342824f
--- /dev/null
+++ b/sutils/update.c
@@ -0,0 +1,54 @@
+/* Periodically call sync.
+   Copyright (C) 1994 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main (int argc, char **argv)
+{
+  int interval;
+
+  switch (argc)
+    {
+    case 1:
+      interval = 30;
+      break;
+    case 2:
+      interval = atoi (argv[1]);
+      break;
+    default:
+      fprintf (stderr, "Usage: %s [SECONDS]\n", argv[0]);
+      exit (1);
+    }
+  
+  if (daemon (0, 0))
+    {
+      perror ("daemon");
+      exit (1);
+    }
+
+  for (;;)
+    {
+      sync ();
+      sleep (interval);
+    }
+}