GetAdaptersInfo를 이용한 네트워크 정보 추출

* 맥에드레스 얻어내기

#include "stdafx.h"
#include "windows.h"
#include "stdio.h"
#include "iprtrmib.h"
#include "tlhelp32.h"
#include "iphlpapi.h"
#pragma comment(lib, "Iphlpapi.lib")

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// The one and only application object

CWinApp theApp;

using namespace std;
/*
int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
 int nRetCode = 0;

 // initialize MFC and print and error on failure
 if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
 {
  // TODO: change error code to suit your needs
  cerr << _T("Fatal Error: MFC initialization failed") << endl;
  nRetCode = 1;
 }
 else
 {
  // TODO: code your application's behavior here.
  CString strHello;
  strHello.LoadString(IDS_HELLO);
  cout << (LPCTSTR)strHello << endl;
 }

 return nRetCode;
}*/

// GetAdaptersInfo.cpp : 콘솔 응용 프로그램에 대한 진입점을 정의합니다.
//

 

int _tmain(int argc, _TCHAR* argv[])
{
 PIP_ADAPTER_INFO p = NULL;
 ULONG len = 0; 
 DWORD dw = 0;
 IP_ADDR_STRING * ns = NULL;
 char buf  [ 101 ];
 char imsi[ 10 ];

 len = sizeof( IP_ADAPTER_INFO );
 p = (IP_ADAPTER_INFO*) malloc( sizeof( IP_ADAPTER_INFO ) );
  
 
 dw = ::GetAdaptersInfo( p, &len );

 if( dw == ERROR_BUFFER_OVERFLOW )
 {
  printf( "Error Buffer Overflow\n" );

  GlobalFree( p );
  p = (IP_ADAPTER_INFO*) malloc( len );
 }

 
 if( dw = ::GetAdaptersInfo( p, &len ) == ERROR_SUCCESS )
 {
  while( p )
  {
   printf( "Adapter [ %02d ]--------------------\n", p->Index );
   printf( "▷ Name: %s\n", p->AdapterName );
   printf( "▷ Description: %s\n", p->Description  );
   printf( "▷ Type: %d\n", p->Type );
   
   memset( buf, NULL, sizeof( buf ) );
   memset( buf, NULL, sizeof( imsi ) );
   for( int i = 0 ; i < (int)p->AddressLength ; i++ )
   {
    if( i == p->AddressLength -1 )
     wsprintf( imsi, "%02x", p->Address[ i ] );
    else
     wsprintf( imsi, "%02x-", p->Address[ i ] );

    strcat( buf, imsi );
   }
   printf( "▷ Hardware Address: %s\n", buf );

   ns  = &p->IpAddressList;
   while( ns )
   {
    printf( "▷ Ip : %s\n" , ns->IpAddress.String );
    printf( "▷ Mask: %s\n", ns->IpMask.String );
    ns = ns->Next;
   }
   printf( "\n\n" );
   p = p->Next;
  }
 }
 else
 {
   printf("Call to GetAdaptersInfo failed.\n");
  LPVOID lpMsgBuf;
  if (FormatMessage( 
   FORMAT_MESSAGE_ALLOCATE_BUFFER | 
   FORMAT_MESSAGE_FROM_SYSTEM | 
   FORMAT_MESSAGE_IGNORE_INSERTS,
   NULL,
   dw,
   MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
   (LPTSTR) &lpMsgBuf,
   0,
   NULL )) {
   printf("\tError: %s", lpMsgBuf);
  }
  LocalFree( lpMsgBuf );
 }

 GlobalFree( p );
 return 0;

}

 

컴파일하기 위해 필요한 라이브러리 파일들

 

ws2_32.lib

iphlpapi.lib