88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
//ping.h
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#ifndef _CPING_H_
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#define _CPING_H_
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#pragma pack(1)
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#define ICMP_ECHOREPLY 0
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#define ICMP_ECHOREQ 8
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#define REQ_DATASIZE 32 // Echo 请求数据的大小
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class CPing
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{
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public:
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//ping host， nRetries-ping次数
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bool Ping(LPCSTR pstrHost, UINT nRetries = 4);
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void Result(int* nElapseTime, float* fMissPack = NULL, u_char* cTTL = NULL);
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//void Result(CPing::REQ_RESULT& result);
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private:
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int WaitForEchoReply(SOCKET s);
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//ICMP回应的请求和回答函数
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int SendEchoRequest(SOCKET, LPSOCKADDR_IN);
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DWORD RecvEchoReply(SOCKET, LPSOCKADDR_IN, u_char *);
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u_short in_cksum(u_short *addr, int len);
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private:
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struct REQ_RESULT
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{
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int nElapseTime; //请求响应时间。
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u_char cTTL; //请求TTL(生存时间)
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float fMissPack; //丢包率
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};
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REQ_RESULT m_Result;
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};
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// IP Header -- RFC 791
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typedef struct tagIPHDR
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{
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u_char VIHL; // Version and IHL
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u_char TOS; // Type Of Service
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short TotLen; // Total Length
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short ID; // Identification
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short FlagOff; // Flags and Fragment Offset
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u_char TTL; // Time To Live
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u_char Protocol; // Protocol
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u_short Checksum; // Checksum
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struct in_addr iaSrc; // Internet Address - Source
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struct in_addr iaDst; // Internet Address - Destination
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}IPHDR, *PIPHDR;
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// ICMP Header - RFC 792
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typedef struct tagICMPHDR
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{
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u_char Type; // Type
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u_char Code; // Code
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u_short Checksum; // Checksum
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u_short ID; // Identification
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u_short Seq; // Sequence
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char Data; // Data
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}ICMPHDR, *PICMPHDR;
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// ICMP Echo Request
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typedef struct tagECHOREQUEST
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{
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ICMPHDR icmpHdr;
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DWORD dwTime;
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char cData[REQ_DATASIZE];
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}ECHOREQUEST, *PECHOREQUEST;
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// ICMP Echo Reply
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typedef struct tagECHOREPLY
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{
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IPHDR ipHdr;
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ECHOREQUEST echoRequest;
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char cFiller[256];
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}ECHOREPLY, *PECHOREPLY;
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#pragma pack()
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#endif
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