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