--- mainfile.php.OLD	Thu Jun 13 18:20:03 2002
+++ mainfile.php	Thu Jun 13 18:41:01 2002
@@ -2,7 +2,7 @@
 # mainfile.php - all main functions for phpnuke (by fb)
 # $Id: mainfile.php,v 1.1 2002/06/03 22:02:50 pawal Exp $
 
-if (eregi("mainfile.php",$PHP_SELF)) {
+if (eregi("mainfile\.php",$SCRIPT_NAME)) {
 	header("Location: index.php");
 	die();
 }
@@ -27,6 +27,26 @@
 	$user = base64_decode($user);
 	$cookie = explode(":", $user);
 	return $cookie;
+}
+
+function isRealUser($user) {
+	$userArray = cookiedecode($user);
+	$claimedUser = $userArray[1];
+	$claimedPass = $userArray[2];
+
+	if (($claimedUser == '') and ($claimedPass == ''))
+		return false; # inte inloggad
+
+	dbconnect();
+	$result = mysql_query("SELECT COUNT(*) FROM users WHERE uname='".addslashes($claimedUser)."' AND pass='".addslashes($claimedPass)."'");
+	$resultarray = mysql_fetch_array($result);
+	$resultcounter = $resultarray[0];
+	mysql_free_result($result);
+
+	if ($resultcounter == 1)
+		return true; # inloggad, inget skumt
+
+	die('Ta din säng och gå, lame man!'); # Skumt!
 }
 
 function getusrinfo($user) {