vc 怎样获得当前DNS 的IP

[ghw8327482]

vc 怎样获得当前DNS 的IP,有vc代码实现，最好有源代码

[Eleven]

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

#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
/* Note: could also use malloc() and free() */

int __cdecl main()
{

	FIXED_INFO *pFixedInfo;
	ULONG ulOutBufLen;
	DWORD dwRetVal;
	IP_ADDR_STRING *pIPAddr;

	pFixedInfo = (FIXED_INFO *) MALLOC(sizeof (FIXED_INFO));
	if (pFixedInfo == NULL) {
		printf("Error allocating memory needed to call GetNetworkParams\n");
		return 1;
	}
	ulOutBufLen = sizeof (FIXED_INFO);

	// Make an initial call to GetAdaptersInfo to get
	// the necessary size into the ulOutBufLen variable
	if (GetNetworkParams(pFixedInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {
		FREE(pFixedInfo);
		pFixedInfo = (FIXED_INFO *) MALLOC(ulOutBufLen);
		if (pFixedInfo == NULL) {
			printf("Error allocating memory needed to call GetNetworkParams\n");
			return 1;
		}
	}

	if (dwRetVal = GetNetworkParams(pFixedInfo, &ulOutBufLen) == NO_ERROR) {

		printf("Host Name: %s\n", pFixedInfo->HostName);
		printf("Domain Name: %s\n", pFixedInfo->DomainName);

		printf("DNS Servers:\n");
		printf("\t%s\n", pFixedInfo->DnsServerList.IpAddress.String);

		pIPAddr = pFixedInfo->DnsServerList.Next;
		while (pIPAddr) {
			printf("\t%s\n", pIPAddr->IpAddress.String);
			pIPAddr = pIPAddr->Next;
		}

		printf("Node Type: ");
		switch (pFixedInfo->NodeType) {
		case BROADCAST_NODETYPE:
			printf("Broadcast node\n");
			break;
		case PEER_TO_PEER_NODETYPE:
			printf("Peer to Peer node\n");
			break;
		case MIXED_NODETYPE:
			printf("Mixed node\n");
			break;
		case HYBRID_NODETYPE:
			printf("Hybrid node\n");
			break;
		default:
			printf("Unknown node type %0lx\n", pFixedInfo->NodeType);
			break;
		}

		printf("DHCP scope name: %s\n", pFixedInfo->ScopeId);

		if (pFixedInfo->EnableRouting)
			printf("Routing: enabled\n");
		else
			printf("Routing: disabled\n");

		if (pFixedInfo->EnableProxy)
			printf("ARP proxy: enabled\n");
		else
			printf("ARP Proxy: disabled\n");

		if (pFixedInfo->EnableDns)
			printf("DNS: enabled\n");
		else
			printf("DNS: disabled\n");

	} else {
		printf("GetNetworkParams failed with error: %d\n", dwRetVal);
		return 1;
	}

	if (pFixedInfo)
		FREE(pFixedInfo);

	return 0;
}

[Eleven]

MSDN上的例子程序。。。

[ok1234567]

struct hostent * host_addr; 
char sz[16]={0};
if((host_addr=gethostbyname(pszDomain))!= NULL)
{
    in_addr s;
    s.s_addr= *((int*)*host_addr->h_addr_list);
    sprintf(sz,"%d.%d.%d.%d",s.S_un.S_un_b.s_b1,
				s.S_un.S_un_b.s_b2,
				s.S_un.S_un_b.s_b3,
				s.S_un.S_un_b.s_b4);
}

[ctwoz]

学习…

[myqoo]

最简单的方法用WMI查询吧。vc没做过，vb的话只需几行代码就可以了。