ipgram.h

这是一个嗅探器

// IPGram.h: interface for the IPGram class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_IPGRAM_H__51ED0E85_B3FC_403B_9228_815E6DD72C47__INCLUDED_)
#define AFX_IPGRAM_H__51ED0E85_B3FC_403B_9228_815E6DD72C47__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class IPGram  
{
public:
	int	version;	//版本
	int IHL;	//头部长度
	int servicetype;	//服务类型 type of service
	int precedence;	//优先级
	bool delay;	//延迟
	bool throughtput;	//吞吐量
	bool reliability;	//可靠性
	unsigned int totallen;	//总长total length
	int identification;	//标识
	bool DF;	//不要分段
	bool MF;	//还有进一步的分段
	int fragoffset;	//分段偏移fragment offset
	int TTL;	//生命期time to live
	int protocol;	//协议,如TCP,UDP
	unsigned int checksum;	//头部校验和
	long srcaddr;	//源IP地址
	long destaddr;	//目的IP地址
	int optlen;	//选项长度
	unsigned char *options;	//选项内容
	int datalen;	//数据长度
	unsigned char *data;	//数据内容

	IPGram();
	IPGram(const unsigned char* buf,int buflen);
	virtual ~IPGram();
	CString GetService();
	void GetDestAddr(char *str);
	CString GetDestAddr();
	void GetSrcAddr(char *str);
	CString GetSrcAddr();
	CString GetID();
};

#endif // !defined(AFX_IPGRAM_H__51ED0E85_B3FC_403B_9228_815E6DD72C47__INCLUDED_)