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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_PEER_MESSAGE_UTIL_H_
#define _D_PEER_MESSAGE_UTIL_H_
#include "ChokeMessage.h"
#include "UnchokeMessage.h"
#include "InterestedMessage.h"
#include "NotInterestedMessage.h"
#include "HaveMessage.h"
#include "BitfieldMessage.h"
#include "RequestMessage.h"
#include "CancelMessage.h"
#include "PieceMessage.h"
#include "HandshakeMessage.h"
#include "KeepAliveMessage.h"
#include "PortMessage.h"
#include "HaveAllMessage.h"
#include "HaveNoneMessage.h"
#include "PeerConnection.h"
#include "common.h"
#define MAX_BLOCK_LENGTH (128*1024)
class PeerMessageUtil {
private:
PeerMessageUtil() {}
public:
static int getIntParam(const char* msg, int offset);
static int getShortIntParam(const char* msg, int offset);
static void setIntParam(char* dest, int param);
static int getId(const char* msg);
static void checkIndex(int index, int pieces);
static void checkBegin(int begin, int pieceLength);
static void checkLength(int length);
static void checkRange(int begin, int length, int pieceLength);
static void checkBitfield(const unsigned char* bitfield,
int bitfieldLength,
int pieces);
static void checkHandshake(const HandshakeMessage* message,
const unsigned char* infoHash);
static void createPeerMessageString(char* msg, int msgLength,
int payloadLength, int messageId);
};
#endif // _D_PEER_MESSAGE_UTIL_H_
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