#include<winsock2.h> #include<stdio.h> #pragma comment(lib,"WS2_32.lib") int main() { WSADATA data; WSAStartup(2,&data); hostent* host = gethostbyname(""); char *IP = inet_ntoa(*(struct in_addr*)*(host->h_addr_list)); printf("Local IP:%s\n",IP); WSACleanup(); return 0; }
#include <WinSock2.h>
#include <Iphlpapi.h>
#include <iostream>
using namespace std;
#pragma comment(lib,"Iphlpapi.lib") //需要添加Iphlpapi.lib库
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
int netCardNum = 0;
//记录每张网卡上的IP地址数量
int IPnumPerNetCard = 0;
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<<"网卡数量:"<<++netCardNum<<endl;
cout<<"网卡名称:"<<pIpAdapterInfo->AdapterName<<endl;
cout<<"网卡描述:"<<pIpAdapterInfo->Description<<endl;
switch(pIpAdapterInfo->Type)
{
case MIB_IF_TYPE_OTHER:
cout<<"网卡类型:"<<"OTHER"<<endl;
break;
case MIB_IF_TYPE_ETHERNET:
cout<<"网卡类型:"<<"ETHERNET"<<endl;
break;
case MIB_IF_TYPE_TOKENRING:
cout<<"网卡类型:"<<"TOKENRING"<<endl;
break;
case MIB_IF_TYPE_FDDI:
cout<<"网卡类型:"<<"FDDI"<<endl;
break;
case MIB_IF_TYPE_PPP:
printf("PP\n");
cout<<"网卡类型:"<<"PPP"<<endl;
break;
case MIB_IF_TYPE_LOOPBACK:
cout<<"网卡类型:"<<"LOOPBACK"<<endl;
break;
case MIB_IF_TYPE_SLIP:
cout<<"网卡类型:"<<"SLIP"<<endl;
break;
default:
break;
}
cout<<"网卡MAC地址:";
for (DWORD i = 0; i < pIpAdapterInfo->AddressLength; i++)
if (i < pIpAdapterInfo->AddressLength-1)
{
printf("%02X-", pIpAdapterInfo->Address[i]);
}
else
{
printf("%02X\n", pIpAdapterInfo->Address[i]);
}
cout<<"网卡IP地址如下:"<<endl;
//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<<"子网地址:"<<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;
}
std::cout<<"Over"<<std::endl;
getchar();
return 0;
}
取得当前ip信息