gistfile1.hrl

do_handshake(Socket, User, #connect_opts{passwd = Passwd, db = Db}) ->
  {ok, {Number, Bytes}} = mysqerl_tcp:recv(Socket),
  {Caps, Message} = mysqerl_util:read_init(Bytes),
  ok = send_auth(Socket, Number + 1, User, Message, Passwd),
  State = #state{socket = Socket, supports = Caps},
  case Db of
    undefined -> {ok, State};
    _ ->
      case do_use(Db, State) of
        Error = {error, _Reason} -> {stop, Error};
        _Ok -> {ok, State} end end.