@deftypefun {int} {gnutls_x509_crl_set_crt_serial} (gnutls_x509_crl_t @var{crl}, const void * @var{serial}, size_t @var{serial_size}, time_t @var{revocation_time})
@var{crl}: should contain a gnutls_x509_crl_t type
@var{serial}: The revoked certificate's serial number
@var{serial_size}: Holds the size of the serial field.
@var{revocation_time}: The time this certificate was revoked
This function will set a revoked certificate's serial number to the CRL.
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a
negative error value.
@end deftypefun