获取网卡信息

#include <stdio.h>
#include <windows.h>
#include <stdlib.h>
#include <malloc.h>
#include "Iphlpapi.h"

#pragma comment(lib,"IPHLPAPI.LIB")

int main()
{
    PIP_ADAPTER_INFO pAdapterInfo;
    PIP_ADAPTER_INFO pAdapter   = NULL;
    DWORD dwRetVal              =        0;

    pAdapterInfo = (IP_ADAPTER_INFO*)malloc(sizeof(PIP_ADAPTER_INFO));
    ULONG ulOutBufLen = sizeof(PIP_ADAPTER_INFO);

    if(GetAdaptersInfo(pAdapterInfo,&ulOutBufLen)==ERROR_BUFFER_OVERFLOW)
    {
        free(pAdapterInfo);
        pAdapterInfo = (IP_ADAPTER_INFO*)malloc(ulOutBufLen);
    }
    
    if((dwRetVal = GetAdaptersInfo(pAdapterInfo,&ulOutBufLen))==NO_ERROR)
    {
        pAdapter = pAdapterInfo;

        while(pAdapter)
        {
            printf("Adapter Name:\t%s\n",pAdapter->AdapterName);
            printf("Adapter Desc:\t%s\n",pAdapter->Description);
            printf("Adapter Addr:\t%2.2x-%2.2x-%2.2x-%2.2x-%2.2x-%2.2x",
                pAdapter->Address[0],pAdapter->Address[1],pAdapter->Address[2],
                pAdapter->Address[3],pAdapter->Address[4],pAdapter->Address[5]);
            printf("IP Address:\t%s\n",pAdapter->IpAddressList.IpAddress.String);
            printf("IP Mask:\t%s\n",pAdapter->IpAddressList.IpMask.String);
            printf("GateWay:\t%s\n",pAdapter->GatewayList.IpAddress.String);
            printf("**********************\n");

            if(pAdapter->DhcpEnabled)
            {
                printf("DHCP Enabled : YES\n");
                printf("\tDHCP Server:\t%s\n",pAdapter->DhcpServer.IpAddress.String);
                printf("Lease Obtained:%ld\n",pAdapter->LeaseObtained);
            }
            else
            {
                printf("DHCP Enabled : NO \n");
            }


            if(pAdapter->HaveWins)
            {
                printf("Have Wins : YES");
                printf("\tPrimary Wins Server :\t%s\n",pAdapter->PrimaryWinsServer.IpAddress.String);
                printf("\tSecondary Wins Server : \t%s\n",pAdapter->SecondaryWinsServer.IpAddress.String);
            }
            else
            {
                printf("Have Wins :NO\n");
            }

            pAdapter = pAdapter->Next;
        }
    }
    else
    {
        printf("Call to GetAdaptersInfo failed\n");
    }
    return 0;
}

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