<?
// $Id: qcp64.class.php 1.6.4 2008-08-15 13:40:00 (final) wishcraft $
// ------------------------------------------------------------------------ //
// CLORA - Chronolabs Australia //
// Copyright (c) 2008 //
// <http://www.chronolabs.org.au/> //
// ------------------------------------------------------------------------ //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the SDPL Source Directive Public Licence //
// as published by Chronolabs Australia; either version 2 of the License, //
// (at your option) any later version. //
// //
// You may not change or alter any portion of this comment or credits //
// of supporting developers from this source code or any supporting //
// source code which is considered copyrighted (c) material of the //
// original comment or credit authors. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program; if not, write to the Chronolab Australia //
// Chronolabs International PO BOX 699, DULWICH HILL, NSW, 2203, Australia //
// ------------------------------------------------------------------------ //
if (!class_exists('qcp64'))
{
class qcp64
{
var $base;
var $enum;
var $seed;
var $crc;
function __construct($data, $seed, $len=29)
{
$this->seed = $seed;
$this->length = $len;
$this->base = new qcp64_base((int)$seed);
$this->enum = new qcp64_enumerator($this->base);
if (!empty($data))
{
for ($i=1; $i<strlen($data); $i++)
{
$enum_calc = $this->enum->enum_calc(substr($data,$i,1),$enum_calc);
}
$qcp64_crc = new qcp64_leaver($enum_calc, $this->base, $this->length);
$qcp64_crc->reset_leaver();
$this->crc = $qcp64_crc->crc;
}
}
function calc($data)
{
for ($i=1; $i<strlen($data); $i++)
{
$enum_calc = $this->enum->enum_calc(substr($data,$i,1),$enum_calc);
}
$qcp64_crc = new qcp64_leaver($enum_calc, $this->base, $this->length);
$qcp64_crc->reset_leaver();
return $qcp64_crc->crc;
}
}
}
require ('qcp64.base.php');
require ('qcp64.enumerator.php');
require ('qcp64.leaver.php');
|
Download
