@deftypefun {int} {gnutls_x509_ext_export_aia} (gnutls_x509_aia_t @var{aia}, gnutls_datum_t * @var{ext})
@var{aia}: The authority info access

@var{ext}: The DER-encoded extension data; must be freed using @code{gnutls_free()} .

This function will DER encode the Authority Information Access (AIA)
extension; see RFC 5280 section 4.2.2.1 for more information on the
extension.  

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

@strong{Since:} 3.3.0
@end deftypefun