Esempio n. 1
0
        public Endpoint Bind()
        {
            Debug.Assert(_fd != null);
            if (Network.IsMulticast((IPEndPoint)_addr))
            {
                Network.SetReuseAddress(_fd, true);
                _mcastAddr = (IPEndPoint)_addr;
                if (AssemblyUtil.IsWindows)
                {
                    //
                    // Windows does not allow binding to the mcast address itself
                    // so we bind to INADDR_ANY (0.0.0.0) instead. As a result,
                    // bi-directional connection won't work because the source
                    // address won't the multicast address and the client will
                    // therefore reject the datagram.
                    //
                    if (_addr.AddressFamily == AddressFamily.InterNetwork)
                    {
                        _addr = new IPEndPoint(IPAddress.Any, _port);
                    }
                    else
                    {
                        _addr = new IPEndPoint(IPAddress.IPv6Any, _port);
                    }
                }

                _addr = Network.DoBind(_fd, _addr);
                if (_port == 0)
                {
                    _mcastAddr.Port = ((IPEndPoint)_addr).Port;
                }
                Debug.Assert(_mcastInterface != null);
                Network.SetMcastGroup(_fd, _mcastAddr.Address, _mcastInterface);
            }
            else
            {
                _addr = Network.DoBind(_fd, _addr);
            }
            _bound = true;
            Debug.Assert(_endpoint != null);
            _endpoint = _endpoint.Endpoint(this);
            return(_endpoint);
        }