/*

 * Copyright (C) 2007 Apple, Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 * 2.  Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include "config.h"

#include "MD5.h"

#include <windows.h>

typedef void (WINAPI*initPtr)(MD5_CTX*);

typedef void (WINAPI*updatePtr)(MD5_CTX*, unsigned char*, unsigned);

typedef void (WINAPI*finalPtr)(MD5_CTX*);

static HMODULE cryptDLL()

{

    static HMODULE module = LoadLibraryW(L"Cryptdll.dll");

    return module;

}

static initPtr init()

{

    static initPtr ptr = reinterpret_cast<initPtr>(GetProcAddress(cryptDLL(), "MD5Init"));

    return ptr;

}

static updatePtr update()

{

    static updatePtr ptr = reinterpret_cast<updatePtr>(GetProcAddress(cryptDLL(), "MD5Update"));

    return ptr;

}

static finalPtr final()

{

    static finalPtr ptr = reinterpret_cast<finalPtr>(GetProcAddress(cryptDLL(), "MD5Final"));

    return ptr;

}

void MD5_Init(MD5_CTX* context)

{

    init()(context);

}

void MD5_Update(MD5_CTX* context, unsigned char* input, unsigned length)

{

    update()(context, input, length);

}

void MD5_Final(unsigned char hash[16], MD5_CTX* context)

{

    final()(context);

    for (int i = 0; i < 16; ++i)

        hash[i] = context->digest[i];

}