From 58ef38e2bb9503f4fbcca5fb8b17ccaf47f9ed67 Mon Sep 17 00:00:00 2001
From: Sebastian Harl <sh@teamix.net>
Date: Wed, 6 Apr 2011 16:59:19 +0200
Subject: check_pgsql: Fixed query perfdata output for empty warn/crit ranges.

Previously, "(null)" was printed (when using GNU's libc). This has been
changed to print the empty string instead.

diff --git a/plugins/check_pgsql.c b/plugins/check_pgsql.c
index edad116..2acddc4 100644
--- a/plugins/check_pgsql.c
+++ b/plugins/check_pgsql.c
@@ -578,7 +578,9 @@ do_query (PGconn *conn, char *query)
 						? _("CRITICAL")
 						: _("UNKNOWN"));
 	printf (_("'%s' returned %f"), query, value);
-	printf ("|query=%f;%s;%s;0\n", value, query_warning, query_critical);
+	printf ("|query=%f;%s;%s;0\n", value,
+			query_warning ? query_warning : "",
+			query_critical ? query_critical : "");
 	return my_status;
 }
 
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