#define _WINSOCK_DEPRECATED_NO_WARNINGS

 #include <Winsock2.h>

 #include <stdio.h>

 #include <iostream>

 #include <cstring>

 #include<ws2tcpip.h>

 #pragma comment(lib, "ws2_32.lib ")  //linking to the library

 using namespace std;

 int get_ip()

 {

     struct addrinfo *ailist, *aip;

     struct addrinfo hint;

     struct sockaddr_in6 *sinp6;

     PHOSTENT hostinfo;

     char hostname[] = {}; //主机名

     char *port = "";      //端口号

     const char *addr;

     int ilRc;

     gethostname(hostname, sizeof(hostname));

     if((hostinfo = gethostbyname(hostname)) == NULL) //获得本地ipv4地址

     {

         errno = GetLastError();

         fprintf(stderr,"gethostbyname Error:%d\n", errno);

         return ;

     }

     LPCSTR ip;

     while(*(hostinfo->h_addr_list) != NULL) //输出ipv4地址

     {

         ip = inet_ntoa(*(struct in_addr *) *hostinfo->h_addr_list);

         printf("ipv4 addr = %s\n\n", ip);

         hostinfo->h_addr_list++;

     }

     hint.ai_family = AF_INET6;        //hint 的限定设置

     hint.ai_socktype = SOCK_STREAM;   //这里可是设置 socket type    比如  SOCK_DGRAM

     hint.ai_flags = AI_PASSIVE;       // flags 的标志很多。常用的有AI_CANONNAME;

     hint.ai_protocol = ;             //设置协议  一般为0，默认

     hint.ai_addrlen = ;              //下面不可以设置，为0，或者为NULL

     hint.ai_canonname = NULL;

     hint.ai_addr = NULL;

     hint.ai_next = NULL;

     ilRc = getaddrinfo(hostname, port, &hint, &ailist); //通过主机名获得地址信息

     if (ilRc < )

     {

         char str_error[];

         strcpy(str_error, (char *)gai_strerror(errno));

         printf("str_error = %s", str_error);

         return ;

     }

     if(ailist == NULL)

     {

         printf("sorry not find the IP address,please try again \n");

     }

     for (aip = ailist; aip != NULL; aip = aip->ai_next) //显示获取的信息

     {

         aip->ai_family == AF_INET6;

         sinp6 = (struct sockaddr_in6 *)aip->ai_addr;    //为什么是for 循环 ，先向下看

         int i;

         printf("ipv6 addr = ");

         for(i = ; i < ; i++)

         {

             if(((i-)%) && (i>))

             {

                 printf(":");

             }

             printf("%02x",sinp6->sin6_addr.u.Byte[i]);

         }

         printf(" \n");

         printf(" \n");

     }

     while();

 }

 int main(){

     WORD wVersionRequested;

     WSADATA wsaData;

     int err;

     wVersionRequested = MAKEWORD( ,  );

     err = WSAStartup( wVersionRequested, &wsaData );//initiate the ws2_32.dll and match the version

     if ( err !=  )

     {

         return ;

     }

     if ( LOBYTE( wsaData.wVersion ) !=  ||   //if the version is not matched ,then quit and terminate the ws3_32.dll

         HIBYTE( wsaData.wVersion ) !=  )

     {

         WSACleanup( );

         return ;

     }

     get_ip();

     WSACleanup( );

     return ;

 }

 //#define _WINSOCK_DEPRECATED_NO_WARNINGS

 #include <WinSock2.h>

 #include <Iphlpapi.h>

 #include <iostream>

 using namespace std;

 #pragma comment(lib,"Iphlpapi.lib") //需要添加Iphlpapi.lib库

 //#pragma comment(lib, "ws2_32.lib")

 int main(int argc, char* argv[])

 {

     //PIP_ADAPTER_INFO结构体指针存储本机网卡信息

     PIP_ADAPTER_INFO pIpAdapterInfo = new IP_ADAPTER_INFO();

     //得到结构体大小,用于GetAdaptersInfo参数

     unsigned long stSize = sizeof(IP_ADAPTER_INFO);

     //调用GetAdaptersInfo函数,填充pIpAdapterInfo指针变量;其中stSize参数既是一个输入量也是一个输出量

     int nRel = GetAdaptersInfo(pIpAdapterInfo, &stSize);

     //记录网卡数量

     DWORD netCardNum = ;

     GetNumberOfInterfaces(&netCardNum);

     cout << "网卡数量：" << netCardNum<< endl; netCardNum = 0;

     //记录每张网卡上的IP地址数量

     int IPnumPerNetCard = ;

     if (ERROR_BUFFER_OVERFLOW == nRel)

     {

         //如果函数返回的是ERROR_BUFFER_OVERFLOW

         //则说明GetAdaptersInfo参数传递的内存空间不够,同时其传出stSize,表示需要的空间大小

         //这也是说明为什么stSize既是一个输入量也是一个输出量

         //释放原来的内存空间

         delete pIpAdapterInfo;

         //重新申请内存空间用来存储所有网卡信息

         pIpAdapterInfo = (PIP_ADAPTER_INFO)new BYTE[stSize];

         //再次调用GetAdaptersInfo函数,填充pIpAdapterInfo指针变量

         nRel = GetAdaptersInfo(pIpAdapterInfo, &stSize);

     }

     if (ERROR_SUCCESS == nRel)

     {

         //输出网卡信息

         //可能有多网卡,因此通过循环去判断

         while (pIpAdapterInfo)

         {

             cout << "网卡序号：" << ++netCardNum <<"\t"<<pIpAdapterInfo->Index << endl;

             cout << "网卡名称：" << pIpAdapterInfo->AdapterName << endl;

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

             cout << "网卡类型：";

             switch (pIpAdapterInfo->Type)

             {

             case MIB_IF_TYPE_OTHER:        cout << "OTHER" << endl; break;

             case MIB_IF_TYPE_ETHERNET:    cout << "ETHERNET" << endl; break;

             case MIB_IF_TYPE_TOKENRING:    cout << "TOKENRING" << endl; break;

             case MIB_IF_TYPE_FDDI:        cout << "FDDI" << endl; break;

             case MIB_IF_TYPE_PPP:        cout << "PPP" << endl; break;

             case MIB_IF_TYPE_LOOPBACK:    cout << "LOOPBACK" << endl; break;

             case MIB_IF_TYPE_SLIP:        cout << "SLIP" << endl; break;

             default:                    cout << "" << endl; break;

             }

             cout << "网卡MAC地址：";

             for (DWORD i = ; i < pIpAdapterInfo->AddressLength; i++)

                 if (i < pIpAdapterInfo->AddressLength - )

                 {

                     printf("%02X-", pIpAdapterInfo->Address[i]);

                 }

                 else

                 {

                     printf("%02X\n", pIpAdapterInfo->Address[i]);

                 }

             cout << "网卡IP地址如下：" << endl;

             IPnumPerNetCard = ;

             //可能网卡有多IP,因此通过循环去判断

             IP_ADDR_STRING *pIpAddrString = &(pIpAdapterInfo->IpAddressList);

             do

             {

                 cout << "该网卡上的IP数量：" << ++IPnumPerNetCard << endl;

                 cout << "IP 地址：" << pIpAddrString->IpAddress.String << endl;

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

                 cout << "网关地址：" << pIpAdapterInfo->GatewayList.IpAddress.String << endl;

                 pIpAddrString = pIpAddrString->Next;

             } while (pIpAddrString);

             pIpAdapterInfo = pIpAdapterInfo->Next;

             cout << "--------------------------------------------------------------------" << endl;

         }

     }

     //释放内存空间

     if (pIpAdapterInfo)

     {

         delete pIpAdapterInfo;

     }

     return ;

 }