@deftypefun {int} {gnutls_x509_crt_set_ca_status} (gnutls_x509_crt_t @var{crt}, unsigned int @var{ca})
@var{crt}: a certificate of type @code{gnutls_x509_crt_t} 

@var{ca}: true(1) or false(0). Depending on the Certificate authority status.

This function will set the basicConstraints certificate extension.
Use @code{gnutls_x509_crt_set_basic_constraints()}  if you want to control
the pathLenConstraint field too.

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