@deftypefun {int} {gnutls_alpn_get_selected_protocol} (gnutls_session_t @var{session}, gnutls_datum_t * @var{protocol})

@var{session}: is a @code{gnutls_session_t}  type.

@var{protocol}: will hold the protocol name

This function allows you to get the negotiated protocol name. The

returned protocol should be treated as opaque, constant value and

only valid during the session life.

The selected protocol is the first supported by the list sent

by the client.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned,

otherwise a negative error code is returned.

Since 3.2.0

@end deftypefun