From cd3c2b0f1760c894075893ee7a6689eaa6fc2c6b Mon Sep 17 00:00:00 2001
From: Sergey Ivanov <seriv@cs.umd.edu>
Date: Tue, 5 Jun 2012 01:10:07 -0400
Subject: [PATCH] Fix regexp check to match '^$'
When ./check_resmon_metric -H myhost -M Core::Fmadm -C failures -m resources -r '^$'
Use of uninitialized value $value in pattern match (m//) at /etc/nagios3/CS.conf.d/check_resmon_metric line 378.
Use of uninitialized value $value in concatenation (.) or string at /etc/nagios3/CS.conf.d/check_resmon_metric line 383.
OK: resources -
To avoid false critical status check if $value is not defined and if so define as empty string
---
resources/check_resmon_metric | 3 +++
1 file changed, 3 insertions(+)
diff --git a/resources/check_resmon_metric b/resources/check_resmon_metric
index dda6845..1171f1d 100755
--- a/resources/check_resmon_metric
+++ b/resources/check_resmon_metric
@@ -374,6 +374,9 @@ eval {
}
if (defined $regex) {
+ if (!defined($value)) {
+ $value = '';
+ }
if ($value =~ /$regex/) {
$state = "OK";
} else {
--
GitLab