# init(socket:dataDirectory:) Wrap an existing [`ControlSocket`](/documentation/Tor/ControlSocket). ``` init(socket: ControlSocket, dataDirectory: String? = nil) ``` ## Parameters `socket` The underlying transport. Ownership is shared; the client does not close the socket on `deinit`. `dataDirectory` Optional path to Tor’s data directory. When non-`nil`, [`authenticate(password:)`](/documentation/Tor/TorControlClient/authenticate(password:)) will try cookie authentication by reading `/control_auth_cookie`. ## Discussion The primary low-level initialiser. Use when the caller already has a [`ControlSocket`](/documentation/Tor/ControlSocket) in hand — typically because they constructed one from a TCP endpoint or are injecting a mock for tests. The socket may be freshly-connected or already authenticated externally. > Note: Freshly constructed instances have > ``doc://Tor/documentation/Tor/TorControlClient/isAuthenticated`` = `false`. Callers must explicitly invoke > ``doc://Tor/documentation/Tor/TorControlClient/authenticate(password:)`` before issuing any other command.