vc++獲取系統網卡列表及IP地址信息

#include "stdafx.h"
#include <Windows.h>
#include <IPHlpApi.h>
#include <iostream>
#pragma comment(lib,"IPHlpApi.lib")
using namespace std;

BOOL GetLocalAdaptersInfo()
{
    //IP_ADAPTER_INFO結構體
    PIP_ADAPTER_INFO pIpAdapterInfo = NULL;
    pIpAdapterInfo = new IP_ADAPTER_INFO;

    //結構體大小
    unsigned long ulSize = sizeof(IP_ADAPTER_INFO);

    //獲取適配器信息
    int nRet = GetAdaptersInfo(pIpAdapterInfo,&ulSize);

    if (ERROR_BUFFER_OVERFLOW == nRet)
    {
        //空間不足，刪除之前分配的空間
        delete []pIpAdapterInfo;

        //重新分配大小
        pIpAdapterInfo = (PIP_ADAPTER_INFO) new BYTE[ulSize];

        //獲取適配器信息
        nRet = GetAdaptersInfo(pIpAdapterInfo,&ulSize);

        //獲取失敗
        if (ERROR_SUCCESS  != nRet)
        {
            if (pIpAdapterInfo != NULL)
            {
                delete []pIpAdapterInfo;
            }
            return FALSE;
        }
    }

    //MAC 地址信息
    char szMacAddr[20];
    //賦值指針
    PIP_ADAPTER_INFO pIterater = pIpAdapterInfo;
    while(pIterater)
    {
        cout<<"網卡名稱："<<pIterater->AdapterName<<endl;

        cout<<"網卡描述："<<pIterater->Description<<endl;

        sprintf_s(szMacAddr,20,"%02X-%02X-%02X-%02X-%02X-%02X",
                                              pIterater->Address[0],
                                              pIterater->Address[1],
                                              pIterater->Address[2],
                                              pIterater->Address[3],
                                              pIterater->Address[4],
                                              pIterater->Address[5]);

        cout<<"MAC 地址："<<szMacAddr<<endl;

        cout<<"IP地址列表："<<endl<<endl;

        //指向IP地址列表
        PIP_ADDR_STRING pIpAddr = &pIterater->IpAddressList;
        while (pIpAddr)
        {
            cout<<"IP地址：  "<<pIpAddr->IpAddress.String<<endl;
            cout<<"子網掩碼："<<pIpAddr->IpMask.String<<endl;

            //指向網關列表
            PIP_ADDR_STRING pGateAwayList = &pIterater->GatewayList;
            while(pGateAwayList)
            {
                cout<<"網關：    "<<pGateAwayList->IpAddress.String<<endl;

                pGateAwayList = pGateAwayList->Next;
            }

            pIpAddr = pIpAddr->Next;
        }
        cout<<endl<<"--------------------------------------------------"<<endl;

        pIterater = pIterater->Next;
    }

    //清理
    if (pIpAdapterInfo)
    {
        delete []pIpAdapterInfo;
    }

    return TRUE;
}

int _tmain(int argc, _TCHAR* argv[])
{
    GetLocalAdaptersInfo();

    cin.get();
    return 0;
}