stdafx.h

一个MFC编写的PING程序

// stdafx.h : include file for standard system include files,
//  or project specific include files that are used frequently, but
//      are changed infrequently
//

#if !defined(AFX_STDAFX_H__07A7BB94_B11D_4EFC_B0FD_62208DEA844B__INCLUDED_)
#define AFX_STDAFX_H__07A7BB94_B11D_4EFC_B0FD_62208DEA844B__INCLUDED_

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

#define VC_EXTRALEAN		// Exclude rarely-used stuff from Windows headers

#include <afxwin.h>         // MFC core and standard components
#include <afxext.h>         // MFC extensions
#include <afxdisp.h>        // MFC Automation classes
#include <afxdtctl.h>		// MFC support for Internet Explorer 4 Common Controls
#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h>			// MFC support for Windows Common Controls
#endif // _AFX_NO_AFXCMN_SUPPORT

#include <afxsock.h>		// MFC socket extensions

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_STDAFX_H__07A7BB94_B11D_4EFC_B0FD_62208DEA844B__INCLUDED_)

#define REQ_DATASIZE 32		// Echo Request Data size
#define WM_MSG_STATUS	WM_USER + 0x0100
#define WM_MSG_PINGSTOP	WM_USER + 0x0101

// 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
#define ICMP_ECHOREQ	8

// 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;