ping.h

一个非常漂亮的802.1x客户端源代码

// Ping.h: interface for the CPing class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_PING_H__632733B0_0996_4C34_9ABF_6A688ABE1EA1__INCLUDED_)
#define AFX_PING_H__632733B0_0996_4C34_9ABF_6A688ABE1EA1__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <winsock.h>
#include <stdarg.h>

#define ICMP_ECHOREPLY	0
#define ICMP_ECHOREQ	8

#define PING_SUCCESS		1
#define PING_WORKING		0
#define PING_SOCKET_ERROR	-1
#define PING_HOST_NOTFOUND	-2
#define PING_INIT_ERROR		-3
#define VERSION_NOT_SUPPORT	-4
#define PING_CONNECTION_ERROR -5
#define PING_TIMEOUT_ERROR	-6

class CPing  
{
public:
	void SetInterval( int IInterval);
	CPing();
	virtual ~CPing();
	CString m_sHost;
	int		m_iError;
	CString m_sError;
	CString sMsg;
	int		m_iInterval;

	// Internal Functions
	int DoPing(LPCSTR pstrHost);
	void ReportError(int iErrorNo, char *format, ...);
	//int average( int first, ... );
	int  WaitForEchoReply(SOCKET s);
	u_short in_cksum(u_short *addr, int len);

	// ICMP Echo Request/Reply functions
	int		SendEchoRequest(SOCKET, LPSOCKADDR_IN);
	DWORD	RecvEchoReply(SOCKET, LPSOCKADDR_IN, u_char *);
protected:
	void Init();
};

#pragma pack(1)

#define ICMP_ECHOREPLY	0
#define ICMP_ECHOREQ	8

// IP Header -- RFC 791
typedef struct tagIPHDR
{
	u_char  VIHL;			// Version and IHL
	u_char	TOS;			// Type Of Service
	short	TotLen;			// Total Length
	short	ID;				// Identification
	short	FlagOff;		// Flags and Fragment Offset
	u_char	TTL;			// Time To Live
	u_char	Protocol;		// Protocol
	u_short	Checksum;		// Checksum
	struct	in_addr iaSrc;	// Internet Address - Source
	struct	in_addr iaDst;	// Internet Address - Destination
}IPHDR, *PIPHDR;


// ICMP Header - RFC 792
typedef struct tagICMPHDR
{
	u_char	Type;			// Type
	u_char	Code;			// Code
	u_short	Checksum;		// Checksum
	u_short	ID;				// Identification
	u_short	Seq;			// Sequence
	char	Data;			// Data
}ICMPHDR, *PICMPHDR;


#define REQ_DATASIZE 32		// Echo Request Data size

// ICMP Echo Request
typedef struct tagECHOREQUEST
{
	ICMPHDR icmpHdr;
	DWORD	dwTime;
	char	cData[REQ_DATASIZE];
}ECHOREQUEST, *PECHOREQUEST;


// ICMP Echo Reply
typedef struct tagECHOREPLY
{
	IPHDR	ipHdr;
	ECHOREQUEST	echoRequest;
	char    cFiller[256];
}ECHOREPLY, *PECHOREPLY;

#pragma pack()

#endif // !defined(AFX_PING_H__632733B0_0996_4C34_9ABF_6A688ABE1EA1__INCLUDED_)