From b6dd249684e40d63636db99bd0489acec0aa4040 Mon Sep 17 00:00:00 2001
From: Seth Mos <seth.mos@xs4all.nl>
Date: Tue, 9 Sep 2008 21:03:22 +0000
Subject: [PATCH] Add validation

---
 etc/inc/certs.inc | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/etc/inc/certs.inc b/etc/inc/certs.inc
index f004abf441..b4d3dc0eb4 100644
--- a/etc/inc/certs.inc
+++ b/etc/inc/certs.inc
@@ -43,10 +43,13 @@ function & lookup_ca($refid) {
 function & lookup_cert($refid) {
 	global $config;
 
-	foreach ($config['system']['cert'] as & $cert)
-		if ($cert['refid'] == $refid)
-			return $cert;
-
+	if(is_array($config['system']['cert'])) {
+		foreach ($config['system']['cert'] as & $cert) {
+			if ($cert['refid'] == $refid) {
+				return $cert;
+			}
+		}
+	}	
 	return false;
 }