From cc25e87bcd8ac022358d900a6660405741864204 Mon Sep 17 00:00:00 2001
From: laf <neil@lathwood.co.uk>
Date: Mon, 18 Jan 2016 00:04:30 +0000
Subject: [PATCH] Added check for hostname

---
 includes/functions.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/includes/functions.php b/includes/functions.php
index 63fd646b7..c9a9a2709 100644
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -1331,6 +1331,9 @@ function oxidized_reload_nodes() {
  *
 **/
 function dnslookup($device,$type=false) {
+    if (filter_var($device['hostname'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) == true || filter_var($device['hostname'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) == truee) {
+        return '';
+    }
     if (empty($type)) {
         // We are going to use the transport to work out the record type
         if ($device['transport'] == 'udp6' || $device['transport'] == 'tcp6') {