@deftypefun {int} {gnutls_x509_crl_get_extension_data2} (gnutls_x509_crl_t @var{crl}, unsigned @var{indx}, gnutls_datum_t * @var{data})
@var{crl}: should contain a @code{gnutls_x509_crl_t} type
@var{indx}: Specifies which extension OID to read. Use (0) to get the first one.
@var{data}: will contain the extension DER-encoded data
This function will return the requested by the index extension data in the
certificate revocation list. The extension data will be allocated using
@code{gnutls_malloc()} .
Use @code{gnutls_x509_crt_get_extension_info()} to extract the OID.
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned,
otherwise a negative error code is returned. If you have reached the
last extension available @code{GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE}
will be returned.
@end deftypefun