vc++获取系统网卡列表及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结构体
     PIP_ADAPTER_INFO pIpAdapterInfo = NULL;
     pIpAdapterInfo = new IP_ADAPTER_INFO;

     //结构体大小
     unsigned long ulSize = sizeof(IP_ADAPTER_INFO);

     //获取适配器信息
     int nRet = GetAdaptersInfo(pIpAdapterInfo,&ulSize);

     if (ERROR_BUFFER_OVERFLOW == nRet)
     {
         //空间不足，删除之前分配的空间
         delete []pIpAdapterInfo;

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

         //获取适配器信息
         nRet = GetAdaptersInfo(pIpAdapterInfo,&ulSize);

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

     //MAC 地址信息
     char szMacAddr[];
     //赋值指针
     PIP_ADAPTER_INFO pIterater = pIpAdapterInfo;
     while(pIterater)
     {
         cout<<"网卡名称："<<pIterater->AdapterName<<endl;

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

         sprintf_s(szMacAddr,,"%02X-%02X-%02X-%02X-%02X-%02X",
                                               pIterater->Address[],
                                               pIterater->Address[],
                                               pIterater->Address[],
                                               pIterater->Address[],
                                               pIterater->Address[],
                                               pIterater->Address[]);

         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<<"子网掩码："<<pIpAddr->IpMask.String<<endl;

             //指向网关列表
             PIP_ADDR_STRING pGateAwayList = &pIterater->GatewayList;
             while(pGateAwayList)
             {
                 cout<<"网关：    "<<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 ;
 }