www.pudn.com > CapturePacket.rar > PacketMsg.h

// PacketMsg.h: interface for the CPacketMsg class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_PACKETMSG_H__07D44A00_DB78_464A_B980_13F72FBAA817__INCLUDED_) 
#define AFX_PACKETMSG_H__07D44A00_DB78_464A_B980_13F72FBAA817__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
#include "pcap.h" 
#include "remote-ext.h" 
class CPacketMsg   
{ 
public: 
	typedef struct ip_address{ 
		u_char byte1; 
		u_char byte2; 
		u_char byte3; 
		u_char byte4; 
	}ip_address; 
	 
	/* IPv4 header */ 
	typedef struct ip_header{ 
		u_char  ver_ihl;        // Version (4 bits) + Internet header length (4 bits) 
		u_char  tos;            // Type of service  
		u_short tlen;           // Total length  
		u_short identification; // Identification 
		u_short flags_fo;       // Flags (3 bits) + Fragment offset (13 bits) 
		u_char  ttl;            // Time to live 
		u_char  proto;          // Protocol 
		u_short crc;            // Header checksum 
		ip_address  saddr;      // Source address 
		ip_address  daddr;      // Destination address 
		u_int   op_pad;         // Option + Padding 
	}ip_header; 
	 
	/* UDP header*/ 
	typedef struct udp_header{ 
		u_short sport;          // Source port 
		u_short dport;          // Destination port 
		u_short len;            // Datagram length 
		u_short crc;            // Checksum 
	}udp_header; 
 
	char errBuf[PCAP_ERRBUF_SIZE]; 
	int packetCount; 
	pcap_if_t *alldevs; 
 
	CPacketMsg(); 
	virtual ~CPacketMsg(); 
	BOOL getPacketInfo(int dev_num); 
	BOOL getNetCardInfo(); 
}; 
 
#endif // !defined(AFX_PACKETMSG_H__07D44A00_DB78_464A_B980_13F72FBAA817__INCLUDED_)