cocos2d-x ipv6

BYTE CClientSocket::ConnectIpv6(DWORD wdszServerIP, WORD wPort)
{
    if ((wdszServerIP==0)||(wPort==0)) return CONNECT_RET_EXCEPTION;
    in_addr addr;
    addr.s_addr = wdszServerIP;
    char * pszServerIP = inet_ntoa(addr);
#if( CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    try
    {
        m_UIMsgQueue.StartQueue();
        m_bTryConnect = true;
        //效验状态
        if (m_hSocket != INVALID_SOCKET) throw CON_ERR_SOCKET_EXISTS;//throw ("连接 SOCKET 句柄已经存在");
        if (m_cbSocketStatus != SOCKET_STATUS_IDLE)  throw CON_ERR_STATUS_IDEL;//throw ("连接状态不是等待连接状态");
        //设置参数
        m_wRecvSize = 0;
        m_cbSendRound = 0;
        m_cbRecvRound = 0;
        m_dwSendXorKey = 0;
        m_dwRecvXorKey = 0;
        m_dwSendTickCount = GetTickCount() / 1000L;
        m_dwRecvTickCount = GetTickCount() / 1000L;

        //建立 SOCKET
        m_hSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
        if (m_hSocket == INVALID_SOCKET) throw CON_ERR_SOCKET_CREATE;//throw ("SOCKET 创建失败");

        //填写服务器地址
        m_wSocketID = m_hSocket;

        struct sockaddr_in    *socketaddr_ipv4;
        struct sockaddr_in6   *socketaddr_ipv6;
        struct addrinfo *answer, hint, *curr;
        char ipstr[128];
        memset(&hint, 0, sizeof(hint));
        hint.ai_family = AF_UNSPEC;
        hint.ai_socktype = SOCK_STREAM;
        int ret = getaddrinfo(pszServerIP, NULL, &hint, &answer);
        if (ret != 0) {
            CCLOG("getaddrinfo error!!");
            return false;
        }
        //设置变量
        m_cbSocketStatus = SOCKET_STATUS_WAIT;

        WSASetLastError(0);

        int nFlags;
        for (curr = answer; curr != NULL; curr = curr->ai_next) {
            m_hSocket = socket(curr->ai_family, curr->ai_socktype, curr->ai_protocol);
            if ((int)m_hSocket < 0) continue;

            //////////////////////////////////////////////////////////////////////////////

            nFlags = fcntl(m_hSocket, F_GETFL, 0);
            fcntl(m_hSocket, F_SETFL, nFlags | O_NONBLOCK);


            ///////////////////////////////////////////////////////////////////////////////
            switch (curr->ai_family) {
            case AF_UNSPEC:
                break;
            case AF_INET:
                CCLOG("SOCKET TYPE IPV4");
                socketaddr_ipv4 = reinterpret_cast(curr->ai_addr);
                socketaddr_ipv4->sin_port = htons(wPort);
                ::connect(m_hSocket, (struct sockaddr *)socketaddr_ipv4, curr->ai_addrlen);
                inet_ntop(AF_INET, &socketaddr_ipv4->sin_addr, ipstr, sizeof(ipstr));
                break;
            case AF_INET6:
                CCLOG("SOCKET TYPE IPV6");
                socketaddr_ipv6 = reinterpret_cast(curr->ai_addr);
                socketaddr_ipv6->sin6_port = htons(wPort);
                ::connect(m_hSocket, (struct sockaddr *)socketaddr_ipv6, curr->ai_addrlen);
                inet_ntop(AF_INET6, &socketaddr_ipv6->sin6_addr, ipstr, sizeof(ipstr));
                break;
            default:
                break;
            }
            CCLOG("has connect......");
            break;
        }

        freeaddrinfo(answer);

        fd_set wset;
        struct timeval timeout = { 5, 0 };
        int nRetConnect = 0;
        int nRetSelect = 0;
        int nLastError = 0;
        int error = 0;
        int len = 0;
        int code = 0;

        FD_ZERO(&wset);
        FD_SET(m_hSocket, &wset);

        if ((nRetSelect = select(m_hSocket + 1, 0, &wset, 0, &timeout)) == 0)
        {
            WSASetLastError(ETIMEDOUT);
            throw WSAGetLastError();
        }

        if (FD_ISSET(m_hSocket, &wset))
        {
            len = sizeof(error);
            code = getsockopt(m_hSocket, SOL_SOCKET, SO_ERROR, (void *)&error, (socklen_t *)&len);
            if (code < 0 || error)
            {
                WSASetLastError(error);
                throw WSAGetLastError();
            }

            goto done;
        }
        else
        {
            throw WSAGetLastError();
        }

    done:

        fcntl(m_hSocket, F_SETFL, nFlags & ~O_NONBLOCK);  /* restore file status flags */
        OnSocketNotifyConnect(CON_ERR_SUCCESS);
        return CONNECT_RET_SUCCESS;
    }
    catch (int errorcode)
    {
        if (m_bTryConnect)
        {
            OnSocketNotifyConnect(errorcode, "");
        }
        return CONNECT_RET_FAILURE;
    }
    catch (...)
    {
        if (m_bTryConnect)
        {
            OnSocketNotifyConnect(CON_ERR_EXCEPTION, "");
        }
        return CONNECT_RET_EXCEPTION;
    }

#endif
    return CONNECT_RET_EXCEPTION;
}