fix div by zero error when swaptotal is zero (Flo Gleixner)

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@834 f882894a-f735-0410-b71e-b25c423dba1c

diff --git a/AUTHORS b/AUTHORS
index 5c8844f4a9a02845b0da987e28aa23df01f5416e..65f96474929c8a3556d7a5884f9014c219282fed 100644 (file)
--- a/AUTHORS
+++ b/AUTHORS
@@ -101,4 +101,5 @@ Matt Pounsett
 Shawn Wills
 Ralph Rye
 Jason Martin
-Jon Hallett
\ No newline at end of file
+Jon Hallett
+Flo Gleixner

diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index fe792e87b3ece6947841d308896415ea0a9facbb..1155ed0ea44e9e76a61e9e3e64cdccea3daf2da2 100644 (file)
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
@@ -73,8 +73,8 @@ main (int argc, char **argv)
        bindtextdomain (PACKAGE, LOCALEDIR);
        textdomain (PACKAGE);
 
-       status = strdup("");
-       perf = strdup("");
+       status = strdup ("");
+       perf = strdup ("");
 
        if (process_arguments (argc, argv) != OK)
                usage (_("Invalid command arguments supplied\n"));
@@ -90,7 +90,10 @@ main (int argc, char **argv)
                        used_swap += dskused;
                        free_swap += dskfree;
                        if (allswaps) {
-                               percent = 100 * (((double) dskused) / ((double) dsktotal));
+                               if (dsktotal == 0)
+                                       percent=100.0;
+                               else
+                                       percent = 100 * (((double) dskused) / ((double) dsktotal));
                                result = max_state (result, check_swap (percent, dskfree));
                                if (verbose)
                                        asprintf (&status, "%s [%llu (%d%%)]", status, dskfree, 100 - percent);