hex2bin

1. 查紀錄出現以下錯誤：

   [Mon Mar 07 09:20:26 2016] [error] [client 36.232.158.80] PHP Fatal error:
   Cannot redeclare hex2bin() in
   /usr/share/squirrelmail/plugins/mail_fetch/functions.php on line 104
   

2. 解決方式：將函數名稱 hex2bin 改為 convertHex2bin。

   [root@mail www]# diff -uN
   squirrelmail-1.4.22.bak/plugins/mail_fetch/functions.php
   squirrelmail-1.4.22/plugins/mail_fetch/functions.php 
   --- squirrelmail-1.4.22.bak/plugins/mail_fetch/functions.php	2011-01-06
   10:44:03.000000000 +0800
   +++ squirrelmail-1.4.22/plugins/mail_fetch/functions.php	2016-03-07
   08:37:08.136952950 +0800
   @@ -92,7 +92,8 @@
        return '';
    }
    
   -function hex2bin( $data ) {
   +#function hex2bin( $data ) {
   +function convertHex2bin( $data ) {
        /* Original code by josh@superfork.com */
    
        $len = strlen($data);
   @@ -136,7 +137,8 @@
    }
    
    function decrypt( $txt ) {
   -    $txt = mf_keyED( hex2bin( $txt ) );
   +    #$txt = mf_keyED( hex2bin( $txt ) );
   +    $txt = mf_keyED( convertHex2bin( $txt ) );
        $tmp = '';
        for ( $i=0; $i < strlen( $txt ); $i++ ) {
            $md5 = substr( $txt, $i, 1 );