基於Windows的DNS查詢

閒來無事，隨便弄弄

#pragma comment(lib, "ws2_32")
#include <WinDNS.h>
#pragma comment(lib, "dnsapi")
int _tmain(int argc, _TCHAR *argv[])
{
	PDNS_RECORDW pdns_record = NULL;
	DNS_STATUS dns_status;
	dns_status = DnsQuery_W(L"baidu.com", DNS_TYPE_A, DNS_QUERY_STANDARD, NULL, &pdns_record, NULL);

	PDNS_RECORDW pdns_iter = pdns_record;
	unsigned int idx = 0;

	while(pdns_iter) 
	{
		in_addr iaddr = {0};
		char *paddr = NULL;
		iaddr.S_un.S_addr = pdns_iter->Data.A.IpAddress; 
		paddr = inet_ntoa(iaddr);
		printf("index = %d \n", ++idx);
		wprintf(L"domain = %ws \n", pdns_iter->pName);
		printf("data length = %d \n", pdns_iter->wDataLength);
		printf("TTL = %d \n", pdns_iter->dwTtl);
		printf("ip = %s \n\n", paddr);

		pdns_iter = pdns_iter->pNext;
	}

	DnsRecordListFree(pdns_record, DnsFreeRecordList);


	system("pause");
	return 0;
}