/*************************************************************************** *   Copyright (C) 2004-2005 by yunfan                                     * *   yunfan_zg@163.com                                                     * *                                                                         * *   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.             * ***************************************************************************/ // the base class for all user head packets// Tencent QQ uses User Head instead of avatar, so we just follow the same way -__-!#ifndef EVAUSERHEADPACKET_H#define EVAUSERHEADPACKET_H#define UH_HEAD_TAG      0x03#define UH_CMD_INFO      0x04#define UH_CMD_TRANSFER  0x02class EvaUHPacket {public:	// for incoming packets	EvaUHPacket( const unsigned char *buf, const int len);	// for outcoming packets	EvaUHPacket(const bool isInfo);	virtual ~EvaUHPacket();		// for incoming packets		const bool parse();	// for outcoming packets	const bool fill(unsigned char *buf, int *len);	const unsigned char getCommand() { return mCommand; }	const int getNumPackets() const { return (int)mNumPackets; }	const int getPacketNum() const { return (int)mPacketNum; }	void setNumPackets(const int num) { mNumPackets = (0xff & num); }	void setPacketNum(const int num) { mPacketNum = (0xff & num); }	const bool isDataPacket() { return mIsData; }protected:	virtual const bool parseBody();	virtual const bool fillBody(unsigned char *buf, int *len);	int mBodyStart;	unsigned char *buffer;	int mBufferLen;	unsigned short mVersion;	bool mIsData;private:	static unsigned short seq_random;	static unsigned short seq_info;	static unsigned short seq_transfer;	unsigned char mCommand;	unsigned char mNumPackets;	unsigned char mPacketNum; 	const int parseHead();	const bool fillHead(unsigned char *buf);};#endif // EVAUSERHEADPACKET_H