VC++获取本机网卡及网络流量的方法

使用GetAdaptersInfo 和 GetIfTable获取本机网卡信息以及流量等信息。

#include "stdafx.h"
#include   
#include   
#include   

using namespace std;
#pragma comment(lib,"Iphlpapi.lib") //需要添加Iphlpapi.lib库  


int main(int argc, char* argv[])
{
    PIP_ADAPTER_INFO pIpAdapterInfo = new IP_ADAPTER_INFO();//PIP_ADAPTER_INFO结构体指针存储本机网卡信息  
    unsigned long stSize = sizeof(IP_ADAPTER_INFO);         //得到结构体大小,用于GetAdaptersInfo参数  
    int nRel = GetAdaptersInfo(pIpAdapterInfo, &stSize);     //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 netCardNum = 0;//记录网卡数量   
    int IPnumPerNetCard = 0; //记录每张网卡上的IP地址数量  

    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                 
        delete pIpAdapterInfo;//释放原来的内存空间       
        pIpAdapterInfo = (PIP_ADAPTER_INFO)new BYTE[stSize];//重新申请内存空间用来存储所有网卡信息          
        nRel = GetAdaptersInfo(pIpAdapterInfo, &stSize);    //再次调用GetAdaptersInfo函数,填充pIpAdapterInfo指针变量  
    }
    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;
    }

    cout << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;

    MIB_IFTABLE   *pIfTable = NULL;
    ULONG          dwSize = 0;
    DWORD          dwRet;
    dwRet = GetIfTable(pIfTable, &dwSize, TRUE);
    if (dwRet == ERROR_INSUFFICIENT_BUFFER)
    {
        pIfTable = (MIB_IFTABLE *) new char[dwSize];
        if (pIfTable != NULL)
        {
            dwRet = GetIfTable(pIfTable, &dwSize, TRUE);
            if (dwRet == NO_ERROR)
            {
                printf("dwNumEntries = %u\n", pIfTable->dwNumEntries);
                for (int i = 0; i < pIfTable->dwNumEntries; i++)
                {
                    //MIB_IF_TYPE_ETHERNET ->以太网
                    if ((pIfTable->table[i]).dwType == MIB_IF_TYPE_ETHERNET && (pIfTable->table[i]).dwAdminStatus == 1 
                         && ((pIfTable->table[i].dwOperStatus) == MIB_IF_OPER_STATUS_OPERATIONAL))
                    {
                        printf("table[%1d].dwIndex = %u\n", i, (pIfTable->table[i]).dwIndex);
                        printf("\t dwType  = %u\n", (pIfTable->table[i]).dwType);
                        printf("\t dwSpeed = %u\n", (pIfTable->table[i]).dwSpeed);
                        printf("\t dwInByte = %u\n", (pIfTable->table[i]).dwInOctets);
                        printf("\t dwOutByte = %u\n", (pIfTable->table[i]).dwOutOctets);
                        printf("\t Descript = %s\n", (pIfTable->table[i]).bDescr); // friendly name

                        wcout << (pIfTable->table[i]).wszName << endl; // \DEVICE\TCPIP_{90B6A657-5D57-499F-ACC8-0F931B6B1ADC}, it contains netcard's name {xxxx-xxx-xxx}
                    }
                }
            }
            else
            {
                printf("Some error occured!\n");
            }
        }
        else
        {
            printf("Memory allocate failue\n");
        }
    }
    else
    {
        printf("Some error occured!\n");
    }

    system("pause");
    return 0;
}