网络编程中经常需要获得类似于路由信息，ip信息之类的东西。下面的这个函数可以实现读取网卡信息：
void MASKinfo()
{
PIP_ADAPTER_INFO pAdapterInfo;
PIP_ADAPTER_INFO pAdapter = NULL;
DWORD dwRetVal = 0;
DWORD index=0;
CString str;
pAdapterInfo = (IP_ADAPTER_INFO*)malloc(sizeof(IP_ADAPTER_INFO));
ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);
dwRetVal = GetAdaptersInfo(pAdapterInfo,&ulOutBufLen);
if (dwRetVal==ERROR_BUFFER_OVERFLOW)
{
free(pAdapterInfo);
pAdapterInfo = (IP_ADAPTER_INFO*)malloc(ulOutBufLen);
dwRetVal = GetAdaptersInfo(pAdapterInfo,&ulOutBufLen);
}
if (dwRetVal==NO_ERROR)
{
pAdapter = pAdapterInfo;
while (pAdapter)
{
printf("适配器名称:/t% s/n",pAdapter->AdapterName);
printf("适配器索引号:/t% s/n",pAdapter->Index);
printf("适配器描述信息:/t% s/n",pAdapter->Description);
printf("MAC地址:/t% 02X:% 02X:% 02X:% 02X:% 02X:% 02X/n",pAdapter->Address[0],pAdapter->Address[1],
pAdapter->Address[2],pAdapter->Address[3],pAdapter->Address[4],pAdapter->Address[5]);
printf("IP地址:/t% s/n",pAdapter->IpAddressList.IpAddress.String);
printf("子网掩码:/t% s/n",pAdapter->IpAddressList.IpMask.String);
printf("网关地址:/t% s/n",pAdapter->GatewayList.IpAddress.String);
str.Format("% s", pAdapter->IpAddressList.IpAddress.String);//则str里面存储的就是IP地址
index=pAdapter->Index;
CString strindex;
if (pAdapter->DhcpEnabled)
{
printf("DHCP enabled: yes/n");
printf("DHCP服务器:/t% s/n",pAdapter->DhcpServer.IpAddress.String);
printf("租约:% ld/n",pAdapter->LeaseObtained);
}
else
{
printf("DHCP enabled:no/n");
}
if (pAdapter->HaveWins)
{
printf("Have Wins:Yes/n");
printf("Primary Wins Server:/t% s/n",pAdapter->PrimaryWinsServer.IpAddress.String);
printf("Secondary Server:/t% s/n",pAdapter->SecondaryWinsServer.IpAddress.String);
}
else
{
printf("Have Wins:No/n");
}
pAdapter = pAdapter->Next;
}
}
else
{
printf("失败/n");
}
}
注意使用上面这个函数的时候要添加头文件
#include "Iphlpapi.h"
