获得本机的多个IP地址

    CStringArray  strIPList;

    WSADATA wsd;    
    if (WSAStartup(MAKEWORD(2, 2), &wsd) == 0)
    {
        CHAR pHostName[256] = {0};
        if(gethostname(pHostName, 256) != SOCKET_ERROR)
        {
            struct hostent *psHost = gethostbyname(pHostName);
            if(psHost)
            {
                CString strIP;
                for (int i = 0; psHost->h_addr_list[i]; ++i)
                {
                    strIP = inet_ntoa (*(struct in_addr *)psHost->h_addr_list[i]);
                    strIPList.Add(strIP);
                }
            }
        }
    }

    WSACleanup();