From 9d44c0d9952e67f6afad15e2940a5be6f1fe9094 Mon Sep 17 00:00:00 2001
From: Stefan Schantl <stefan.schantl@ipfire.org>
Date: Sat, 28 Feb 2015 09:55:25 +0100
Subject: [PATCH] guardian: Prevent from running multiple instances.

---
 config/guardian/guardian | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/config/guardian/guardian b/config/guardian/guardian
index 9374fe295d..60fe04435e 100644
--- a/config/guardian/guardian
+++ b/config/guardian/guardian
@@ -114,6 +114,16 @@ if (defined($options{"h"})) {
 	exit;
 }
 
+# Check if another guardian instance is running.
+if (-e "$pidfile") {
+	print STDERR "Guardian PID file found!\n\n";
+	print STDERR "Please  stop guardian or release the PID file\n";
+	print STDERR "if no other guardian instance is running.\n";
+
+	# Exit with return code "1".
+	exit 1;
+}
+
 # Call function to read in the configuration file.
 &load_conf;
 
-- 
2.39.5