--- fenglin/lib/client_addr.inc.php	2004/06/10 11:27:10	1.1
+++ fenglin/lib/client_addr.inc.php	2025/04/29 11:55:32	1.13
@@ -1,11 +1,9 @@
-<?
+<?php
+	require_once "../lib/ip_mask.inc.php";
 
-function Client_Address()
-{
-	if (isset($_SERVER["HTTP_X_CLIENT_ADDR"]))
-		return $_SERVER["HTTP_X_CLIENT_ADDR"];
-	else
-		return $_SERVER["REMOTE_ADDR"];
-}
+	function client_addr(int $mask_level = 0) : string
+	{
+		$ip = (isset($_SERVER["REMOTE_ADDR"]) ? $_SERVER["REMOTE_ADDR"] : "");
 
-?>
+		return ip_mask($ip, $mask_level, "%");
+	}