@deftypefun {int} {gnutls_x509_crq_set_tlsfeatures} (gnutls_x509_crq_t @var{crq}, gnutls_x509_tlsfeatures_t @var{features})
@var{crq}: An X.509 certificate request

@var{features}: If the function succeeds, the
features will be added to the certificate
request.

This function will set the certificate request's
X.509 TLS extension from the given structure.

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

@strong{Since:} 3.5.1
@end deftypefun