From 49b7afb02704b8d37b0e863efb2651c5ca1cb70f Mon Sep 17 00:00:00 2001
From: "M. Sean Finney" <seanius@users.sourceforge.net>
Date: Wed, 29 Jun 2005 01:04:10 +0000
Subject: divide by 0 fix for check_swap

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1196 f882894a-f735-0410-b71e-b25c423dba1c

diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index 8f5ebf8..c152eee 100644
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
@@ -310,7 +310,13 @@ main (int argc, char **argv)
 # endif /* HAVE_SWAP */
 #endif /* HAVE_PROC_MEMINFO */
 
-	percent_used = 100 * ((double) used_swap) / ((double) total_swap);
+	/* if total_swap == 0, let's not divide by 0 */
+	if(total_swap) {
+		percent_used = 100 * ((double) used_swap) / ((double) total_swap);
+	} else {
+		percent_used = 0;
+	}
+
 	result = max_state (result, check_swap (percent_used, free_swap));
 	printf (_("SWAP %s - %d%% free (%.0f MB out of %.0f MB) %s|"),
 			state_text (result),
-- 
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