From fd6a9af84cad3613810d7d0dbba5be5652b1a906 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Tue, 7 Aug 2018 16:22:12 +0200
Subject: [PATCH] contact: fix login indicator, omit unresolved host names

---
 contact.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/contact.php b/contact.php
index c55ec0c..691ff41 100644
--- a/contact.php
+++ b/contact.php
@@ -1,6 +1,7 @@
 <?php
 $error = NULL;
 if ($_POST) {
+	global $User;
 	if (!empty($User)) {
 		$_REQUEST['login'] = $User['name'];
 	}
@@ -49,7 +50,9 @@ switch ($source) {
 	}
 
 	$origin = $_SERVER['REMOTE_ADDR'];
-	$origin .= sprintf(' (%s)', gethostbyaddr($origin));
+	if ($resolved = @gethostbyaddr($origin) and $resolved !== $origin) {
+		$origin .= sprintf(' (%s)', gethostbyaddr($origin));
+	}
 	$body = "Ingevuld vanaf $origin:\r\n\r\n";
 
 	foreach ($input as $k => $v) {
-- 
2.30.0