开发学院软件开发 VC 透析ICMP协议(3):应用篇ping(ICMP.dll) 阅读

透析ICMP协议(3):应用篇ping(ICMP.dll)

　2010-02-19 20:33:04　来源：WEB开发网　闂傚倷绶氬ḿ褍螞閹绢喖绠柨鐕傛嫹

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核心提示：==主函数==int main(int argc, char* argv[]){WSAData wsaData;if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) {return 255;}int retval = doit(argc, argv);WSACleanup();r

==================主函数==================

int main(int argc, char* argv[]) { WSAData wsaData; if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) { return 255; } int retval = doit(argc, argv); WSACleanup(); return retval; }

==================头文件==================

icmpdefs.h //ICMP.DLL 函数中需要的结构 typedef struct { unsigned char Ttl; // Time To Live unsigned char Tos; // Type Of Service unsigned char Flags; // IP header flags unsigned char OptionsSize; // Size in bytes of options data unsigned char *OptionsData; // Pointer to options data } IP_OPTION_INFORMATION, * PIP_OPTION_INFORMATION; typedef struct { DWORD Address; // Replying address unsigned long Status; // Reply status unsigned long RoundTripTime; // RTT in milliseconds unsigned short DataSize; // Echo data size unsigned short Reserved; // Reserved for system use void *Data; // Pointer to the echo data IP_OPTION_INFORMATION Options; // Reply options } IP_ECHO_REPLY, * PIP_ECHO_REPLY;