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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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?> |