不读注册表怎么得到DNS

bravebee

不读注册表怎么得到DNS的值

huhustar

DWORD GetNetworkParams(
  PFIXED_INFO pFixedInfo,
  PULONG pOutBufLen
);

#include <stdio.h>
#include <windows.h>
#include <iphlpapi.h>

#program comment(lib,"iphlpapi.lib")

main() {
   
   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 );
   }
   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 );
         pIPAddr = pIPAddr ->Next;
      }
   }
   exit( 0 );
}
要安装sdk

bravebee

这样好像只能得到一个DNS，如果是双网卡怎么办呢

huhustar

我试过了两张网卡也行的

smilingamao

就是这样