iphelpergetnetpara(host-domain-dnsip).cpp

利用IPHelper的函数GetNetworkParams获取当前网络的主机名、域名、DNS地址。

// IPHlperMask.cpp : 僐儞僜乕儖 傾僾儕働乕僔儑儞偺僄儞僩儕 億僀儞僩傪掕媊偟傑偡丅
//

#include "stdafx.h"

//
// Link with IPHlpAPI.lib
//
#include <winsock2.h>
#include <iphlpapi.h>
#include <stdio.h>
#pragma comment(lib,"IpHlpApi.lib")

int __cdecl main(int argc,char *argv[]) {
   
   FIXED_INFO * FixedInfo;
   ULONG    ulOutBufLen;
   DWORD    dwRetVal;
   IP_ADDR_STRING * pIPAddr;

   FixedInfo = (FIXED_INFO *) GlobalAlloc( GPTR, sizeof( FIXED_INFO ) );
   ulOutBufLen = sizeof( FIXED_INFO );
   
   if( ERROR_BUFFER_OVERFLOW == GetNetworkParams( FixedInfo, &ulOutBufLen ) ) {
      GlobalFree( FixedInfo );
      FixedInfo = (FIXED_INFO *) GlobalAlloc( GPTR, ulOutBufLen );
   }

   if ( dwRetVal = GetNetworkParams( FixedInfo, &ulOutBufLen ) ) {
        printf( "Call to GetNetworkParams failed. Return Value: %08x\n", dwRetVal );
        return 1;
   }
   else {
      printf( "Host Name: %s\n", FixedInfo -> HostName );
      printf( "Domain Name: %s\n", FixedInfo -> DomainName );
      
      printf( "DNS Servers:\n" );
      printf( "\t%s\n", FixedInfo -> DnsServerList.IpAddress.String );
      
      pIPAddr = FixedInfo -> DnsServerList.Next;
      while ( pIPAddr ) {
         printf( "\t%s\n", pIPAddr ->IpAddress.String );
			printf( "\t%s\n", pIPAddr->IpMask );
         pIPAddr = pIPAddr -> Next;
      }
   }

   return 0;
}