From 86e5a8a70d0312f5abff044c721a490423337eaf Mon Sep 17 00:00:00 2001
From: emc3 <emc3@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Wed, 16 Feb 2005 21:35:58 +0000
Subject: [PATCH] This really deserves to be in a separate function so that
 plugins can get at it more easily, don't you think?

git-svn-id: http://svn.automattic.com/wordpress/trunk@2357 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/functions-post.php | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/wp-includes/functions-post.php b/wp-includes/functions-post.php
index 937015f223..56f583e7a0 100644
--- a/wp-includes/functions-post.php
+++ b/wp-includes/functions-post.php
@@ -438,8 +438,16 @@ function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_age
 		if ( preg_match($pattern, $user_agent) ) return true;
 	}
 	
-	if ( get_option('open_proxy_check') && isset($_SERVER['REMOTE_ADDR']) ) {
-		$rev_ip = implode( '.', array_reverse( explode( '.', $_SERVER['REMOTE_ADDR'] ) ) );
+	if ( isset($_SERVER['REMOTE_ADDR']) ) {
+		if ( $wp_proxy_check($_SERVER['REMOTE_ADDR']) ) return true;
+	}
+
+	return false;
+}
+
+function wp_proxy_check($ipnum) {
+	if ( get_option('open_proxy_check') && isset($ipnum) ) {
+		$rev_ip = implode( '.', array_reverse( explode( '.', $ipnum ) ) );
 		$lookup = $rev_ip . '.opm.blitzed.org';
 		if ( $lookup != gethostbyname( $lookup ) )
 			return true;