Source for file xteacmd.php

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
//
// +----------------------------------------------------------------------+
// | PHP version 4.0                                                      |
// +----------------------------------------------------------------------+
// | Copyright (c) 2004 The PHP Group                                     |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 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/2_02.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: Jeroen Derks <jeroen@derks.it>                              |
// +----------------------------------------------------------------------+
//
// $Id: xteacmd.php,v 1.3 2005/05/13 19:34:18 jeroend Exp $
 
 
 
/**
 *  Simple xtea command line utility.
 *  Simple xtea command line utility.
 *
 *  @package        Crypt_Xtea_Test
 *  @modulegroup    Crypt_Xtea_Test
 *  @module         xteacmd
 *  @access         public
 *
 *  @version        $Revision: 1.3 $
 *  @since          2004/Sep/30
 *  @author         Jeroen Derks <jeroen@derks.it>
 */
 
/** Crypt_Xtea class */
 'Crypt/Xtea.php';
 
$flag_decrypt   = false;                // do encryption by default
$msg            = '';                   // initialize message to encrypt/decrypt
$key            = '';                   // initialize key to use
 
$prog = basename($_SERVER['argv'][0]);  // program name
$argc = $_SERVER['argc'];               // number of command line arguments
$argv = $_SERVER['argv'];               // command line arguments array
// process command line flags
 
while (1 < $argc && '-' == $argv[1]{0})
{
    $argc--;
    $arg = $argv[1];
    array_shift($argv);
    if ('--' == $arg)
        break;
 
    $arg = substr($arg, 1);
    while (0 < strlen($arg))
    {
        switch ($arg{0})
        {
            case 'd':   $flag_decrypt = true;   break;
            case 'e':   $flag_decrypt = false;  break;
        }
        $arg = substr($arg, 1);
    }
}
 
// check required parameters
if (2 >= $argc)
{
    echo "usage: $prog [-de] key msg [ msg ... ]\n" .
         "\t-d\tdecrypt message\n" .
         "\t-e\tencrypt message (default action)\n";
    exit(1);
}
 
// get key
$key = $argv[1];
$argc--;
array_shift($argv);
 
// get messages
while (1 < $argc)
{
    $msg    = $argv[1];
    $obj    = new Crypt_Xtea();
 
    if ($flag_decrypt)
    {
        $binmsg = pack('H' . strlen($msg), $msg);
        $result = $obj->decrypt($binmsg, $key);
    }
    else
    {
        $binmsg = $obj->encrypt($msg, $key);
        $result = join('', unpack('H*', $binmsg));
    }
 
    // output result
    echo $result;
 
    // get next message
    $argc--;
    $arg = array_shift($argv);
}
?>