@deftypefun {int} {gnutls_x509_crt_set_authority_info_access} (gnutls_x509_crt_t @var{crt}, int @var{what}, gnutls_datum_t * @var{data})
@var{crt}: Holds the certificate

@var{what}: what data to get, a @code{gnutls_info_access_what_t}  type.

@var{data}: output data to be freed with @code{gnutls_free()} .

This function sets the Authority Information Access (AIA)
extension, see RFC 5280 section 4.2.2.1 for more information.  

The type of data stored in  @code{data} is specified via  @code{what} which
should be @code{gnutls_info_access_what_t}  values.

If  @code{what} is @code{GNUTLS_IA_OCSP_URI} ,  @code{data} will hold the OCSP URI.
If  @code{what} is @code{GNUTLS_IA_CAISSUERS_URI} ,  @code{data} will hold the caIssuers
URI.  

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

@strong{Since:} 3.0
@end deftypefun