From a1adf5af8394960a1bc2813364b800180df27f84 Mon Sep 17 00:00:00 2001
From: Guillaume Mazoyer <gmazoyer@gravitons.in>
Date: Sun, 8 Nov 2015 13:12:54 +0100
Subject: Ensure hostname is not an IP address.

---
 includes/utils.php | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'includes/utils.php')

diff --git a/includes/utils.php b/includes/utils.php
index 79888dd..993300b 100644
--- a/includes/utils.php
+++ b/includes/utils.php
@@ -153,6 +153,11 @@ function match_ipv6($ip, $ip_only = true) {
  *                      otherwise.
  */
 function match_hostname($hostname) {
+  // That's an IP address so it is not a valid hostname.
+  if (match_ipv4($hostame) || match_ipv6($hostname)) {
+    return false;
+  }
+
   return (
     // Valid characters check
     preg_match('/^(_?[a-z\d](-*[_a-z\d])*)(\.(_?[a-z\d](-*[_a-z\d])*))*$/i', $hostname)
-- 
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