internal void HandshakeReceive2Callback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _connection.EndReceive(ar);
if (bytesRead >= 5)
{
_command = _connetionRecvBuffer[1];
if (_command != CMD_CONNECT && _command != CMD_UDP_ASSOC)
{
Logging.Debug("Unsupported CMD=" + _command);
Close();
}
else
{
if (_command == CMD_CONNECT)
{
byte[] response = { Socks5Version, SuccessREP, Reserve, IpV4, 0, 0, 0, 0, 0, 0 };
_connection.BeginSend(response, 0, response.Length, SocketFlags.None,
ResponseConnectCallback, null);
}
else if (_command == CMD_UDP_ASSOC)
{
ReadAddress(HandleUDPAssociate);
}
}
}
else
{
Logging.Debug(
"failed to recv data in Shadowsocks.Controller.TCPHandler.handshakeReceive2Callback()");
Close();
}
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
