Viewing file:  convert_uudecode.php (3.01 KB) -rw-rw-rw-
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<?php
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2004 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 3.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/3_0.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Michael Wallner <mike@php.net> |
// | Aidan Lister <aidan@php.net> |
// +----------------------------------------------------------------------+
//
// $Id: convert_uudecode.php,v 1.8 2005/01/26 04:55:13 aidan Exp $
/**
* Replace convert_uudecode()
*
* @category PHP
* @package PHP_Compat
* @link http://php.net/function.convert_uudecode
* @author Michael Wallner <mike@php.net>
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.8 $
* @since PHP 5
* @require PHP 4.0.0 (user_error)
*/
if (!function_exists('convert_uudecode')) {
function convert_uudecode($string)
{
// Sanity check
if (!is_scalar($string)) {
user_error('convert_uuencode() expects parameter 1 to be string, ' .
gettype($string) . ' given', E_USER_WARNING);
return false;
}
if (strlen($string) < 8) {
user_error('convert_uuencode() The given parameter is not a valid uuencoded string', E_USER_WARNING);
return false;
}
$decoded = '';
foreach (explode("\n", $string) as $line) {
$c = count($bytes = unpack('c*', substr(trim($line), 1)));
while ($c % 4) {
$bytes[++$c] = 0;
}
foreach (array_chunk($bytes, 4) as $b) {
$b0 = $b[0] == 0x60 ? 0 : $b[0] - 0x20;
$b1 = $b[1] == 0x60 ? 0 : $b[1] - 0x20;
$b2 = $b[2] == 0x60 ? 0 : $b[2] - 0x20;
$b3 = $b[3] == 0x60 ? 0 : $b[3] - 0x20;
$b0 <<= 2;
$b0 |= ($b1 >> 4) & 0x03;
$b1 <<= 4;
$b1 |= ($b2 >> 2) & 0x0F;
$b2 <<= 6;
$b2 |= $b3 & 0x3F;
$decoded .= pack('c*', $b0, $b1, $b2);
}
}
return rtrim($decoded, "\0");
}
}
?>
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