[MFC] Ping Test해보기

헤더파일

 

클래스 밖에 선언

 

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;

 

소스파일

 

 

#include <winsock2.h>

 

헤더파일 선언후

아래소스 핑테스트 할곳에 넣음

 

 CString sDestAddress;

 WSADATA wsaData;



 int nRet = WSAStartup(MAKEWORD(2, 2), &wsaData); 

 if (nRet)

 {

  TRACE(_T("WSAStartup() 오류 발생했습니다. 코드 번호 : %d\n"));

  WSACleanup();

  return;



 }



 HINSTANCE hIcmp = LoadLibrary(_T("ICMP.DLL"));



 if (hIcmp == 0)

 {

  TRACE(_T("error\n"));

  return;

 }



//  m_EditIpAddress 컨트롤에서 IP를 받아온다 컨트롤 안쓸거면 그냥 CString 형식의 아이피 주소

//  _T("xxx.xxx.xxx.xxx") 넣어주면된다



 m_EdtIpAddress.GetWindowText(sDestAddress);





 // Look up an IP address for the given host name

 hostent* phe;

 phe = gethostbyname(sDestAddress);



 if (phe == 0)

 {

  TRACE(_T("IP 찾을수없음ㄴ\n"));

  return;

 }



 // Get handles to the functions inside ICMP.DLL that we'll need

 typedef HANDLE(WINAPI* pfnHV)(VOID);

 typedef BOOL(WINAPI* pfnBH)(HANDLE);

 typedef DWORD(WINAPI* pfnDHDPWPipPDD)(HANDLE, DWORD, LPVOID, WORD, PIP_OPTION_INFORMATION, LPVOID, DWORD, DWORD); // evil, no?

 pfnHV pIcmpCreateFile;

 pfnBH pIcmpCloseHandle;

 pfnDHDPWPipPDD pIcmpSendEcho;



 pIcmpCreateFile = (pfnHV)GetProcAddress(hIcmp, "IcmpCreateFile");

 pIcmpCloseHandle = (pfnBH)GetProcAddress(hIcmp, "IcmpCloseHandle");

 pIcmpSendEcho = (pfnDHDPWPipPDD)GetProcAddress(hIcmp, "IcmpSendEcho");



 if ((pIcmpCreateFile == 0) || (pIcmpCloseHandle == 0) || (pIcmpSendEcho == 0))

 {

  TRACE(_T("Failed to get proc addr for function.\n"));

  FreeLibrary((HINSTANCE)hIcmp);

  return;

 }



 // Open the ping service

 HANDLE hIP = pIcmpCreateFile();

 if (hIP == INVALID_HANDLE_VALUE) {

  TRACE(_T("Unable to open ping service.\n"));

  return;

 }



 // Build ping packet

 char acPingBuffer[64];

 memset(acPingBuffer, '\xAA', sizeof(acPingBuffer));

 PIP_ECHO_REPLY pIpe = (PIP_ECHO_REPLY)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT, sizeof(IP_ECHO_REPLY) + sizeof(acPingBuffer));



 if (pIpe == 0)

 {

  TRACE(_T("Failed to allocate global ping packet buffer.\n"));

  return;

 }

 pIpe->Data = acPingBuffer;

 pIpe->DataSize = sizeof(acPingBuffer);



 // Send the ping packet

 DWORD dwStatus = pIcmpSendEcho(hIP, *((DWORD*)phe->h_addr_list[0]),

  acPingBuffer, sizeof(acPingBuffer), NULL, pIpe,

  sizeof(IP_ECHO_REPLY) + sizeof(acPingBuffer), 5000);



 CString sLog;

 if (dwStatus != 0)

 {

  sLog.Format(_T("Addr:%d.%d.%d.%d BYTE:%d RTT:%dms TTL:%d\n"),

   int(LOBYTE(LOWORD(pIpe->Address))),

   int(HIBYTE(LOWORD(pIpe->Address))),

   int(LOBYTE(HIWORD(pIpe->Address))),

   int(HIBYTE(HIWORD(pIpe->Address))),

   pIpe->DataSize,

   int(pIpe->RoundTripTime),

   int(pIpe->Options.Ttl));

 }

 else

 {

  sLog.Format(_T("Error obtaining info from ping packet.\n"));

 }

 //TRACE(sLog);



// m_ListLog 컨트롤 사용하는건데 콘트롤 없으면 그냥 sLog 가 결과값이므로 이걸 알아서 잘 쓰면 된다.

// CString 형식이다. 그냥 AfxMessageBox에 m_ListLog 변수 찍어보기 바람

 m_ListLog.AddString(sLog);

 m_ListLog.SetCurSel(m_ListLog.GetCount() - 1);



 // Shut down...

 GlobalFree(pIpe);

 FreeLibrary(hIcmp);



 WSACleanup();