From 7b682ae9f88bd953212281aadfbb4dd4dc0adbde Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sun, 29 Jul 2007 21:04:03 +0000
Subject: - Patch #162944 by profix898: cleanup ip_address() code.

---
 includes/bootstrap.inc | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index 52bfc5fa5..51ce58480 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -1077,7 +1077,6 @@ function language_default($property = NULL) {
   return $property ? $language->$property : $language;
 }
 
-
 /**
  * If Drupal is behind a reverse proxy, we use the X-Forwarded-For header
  * instead of $_SERVER['REMOTE_ADDR'], which would be the IP address
@@ -1087,20 +1086,15 @@ function language_default($property = NULL) {
  *   IP address of client machine, adjusted for reverse proxy.
  */
 function ip_address() {
-  static $remote_ip;
+  static $ip_address = NULL;
 
-  if ($remote_ip) {
-    // We have been here before, so just return the one we processed before
-    return $remote_ip;
-  }
-  else {
-    $remote_ip = $_SERVER['REMOTE_ADDR'];
-    if (variable_get('reverse_proxy', FALSE) && array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
-      $ip_array = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
+  if (!isset($ip_address)) {
+    $ip_address = $_SERVER['REMOTE_ADDR'];
+    if (variable_get('reverse_proxy', 0) && array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
       // If there are several arguments, the leftmost one is the farthest client
-      $remote_ip = $ip_array[0];
+      list($ip_address, ) = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
     }
   }
 
-  return $remote_ip;
+  return $ip_address;
 }
-- 
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