if (WSAStartup(MAKEWORD(2,1),&wsaData)) //调用Windows Sockets DLL
{
printf("Winsock无法初始化!\n");
WSACleanup();

}

memset(hostname, 0, 256);
iRet = gethostname(hostname, sizeof(hostname));
if(iRet != 0 )
{
printf( "get hostname error:%d\n", iRet);
}
printf("%s\n", hostname);

LPSTR pOwnerName=hostname;

// Calling function DnsQuery to query Host or PTR records
status = DnsQuery(pOwnerName, //Pointer to OwnerName.
DNS_TYPE_A, //Type of the record to be queried.
DNS_QUERY_STANDARD, // Bypasses the resolver cache on the lookup.
NULL, //Contains DNS server IP address.
&pDnsRecord, //Resource record that contains the response.
NULL); //Reserved for future use.

// printf("The host name is %s \n",(pDnsRecord->Data.PTR.pNameHost));
while(pDnsRecord){
printf("The host name is %s \n",pDnsRecord->pName);
printf("the type is %d \n",pDnsRecord->wType);
printf("the lenght of data is %d \n", pDnsRecord->wDataLength);
printf(" the time to live is %d \n", pDnsRecord-> dwTtl);
printf("the lenght of data id %d \n", pDnsRecord-> dwReserved);

pDnsRecord=pDnsRecord->pNext;
}


printf("dnsCache print over");
}
else
{
printf("ilegal code");

}

}

void DoFlushDns(bool){

printf("relizing config/flushdns!");

}