internal void HandshakeSendCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
_connection.EndSend(ar);
// +-----+-----+-------+------+----------+----------+
// | VER | CMD | RSV | ATYP | DST.ADDR | DST.PORT |
// +-----+-----+-------+------+----------+----------+
// | 1 | 1 | X'00' | 1 | Variable | 2 |
// +-----+-----+-------+------+----------+----------+
// Skip first 3 bytes, and read 2 more bytes to analysis the address.
// 2 more bytes is designed if address is domain then we don't need to read once more to get the addr length.
// TODO validate
_connection.BeginReceive(_connetionRecvBuffer, 0, 3 + EncryptorBase.ADDR_ATYP_LEN + 1, SocketFlags.None,
HandshakeReceive2Callback, null);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}