简单枚举网卡信息

来源：互联网发布：windows安装器装win10 编辑：程序博客网时间：2024/04/29 22:11

利用iphlpapi.h文件中相关函数可以获取很多与网络有关的东西，例如当前TCP/UDP连接和网卡信息等，除此之外还可以查看每块网卡发送和接收字节数。

void ShowInterfaceInfo()
{
   DWORD dwNum = 0;
   DWORD dwRet = GetNumberOfInterfaces(&dwNum);
   if (dwRet != NO_ERROR)
       return;
   PMIB_IFTABLE pIfTable = NULL;
   DWORD dwSize = 0;
   dwRet = GetIfTable(pIfTable,&dwSize,TRUE);
   if (dwRet == ERROR_INSUFFICIENT_BUFFER)
       pIfTable = (PMIB_IFTABLE)malloc(dwSize);
   dwRet = GetIfTable(pIfTable,&dwSize,TRUE);
   if (dwRet != NO_ERROR)
   {
       if (pIfTable != NULL)
           free(pIfTable);
       return;
   }

   for (int i=0; i<pIfTable->dwNumEntries; i++)
   {
       PMIB_IFROW pMibRow = &pIfTable->table[i];
       cout<<pMibRow->bDescr<<endl; //网卡描述
       cout<<"Received "<<pMibRow->dwInOctets<<endl; //接收字节
       cout<<"Sent "<<pMibRow->dwOutOctets<<endl<<endl; //发送字节
   }

   if (pIfTable != NULL)
       free(pIfTable);
}