@deftypefun {int} {gnutls_ocsp_status_request_enable_client} (gnutls_session_t @var{session}, gnutls_datum_t * @var{responder_id}, size_t @var{responder_id_size}, gnutls_datum_t * @var{extensions})
@var{session}: is a @code{gnutls_session_t}  type.

@var{responder_id}: ignored, must be @code{NULL} 

@var{responder_id_size}: ignored, must be zero

@var{extensions}: ignored, must be @code{NULL} 

This function is to be used by clients to request OCSP response
from the server, using the "status_request" TLS extension.  Only
OCSP status type is supported.

Previous versions of GnuTLS supported setting  @code{responder_id} and
 @code{extensions} fields, but due to the difficult semantics of the
parameter usage, and other issues, this support was removed
since 3.6.0 and these parameters must be set to @code{NULL} .

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned,
otherwise a negative error code is returned.

@strong{Since:} 3.1.3
@end deftypefun