@deftypefun {const char *} {gnutls_x509_dn_oid_name} (const char * @var{oid}, unsigned int @var{flags}) @var{oid}: holds an Object Identifier in a null terminated string @var{flags}: 0 or GNUTLS_X509_DN_OID_* This function will return the name of a known DN OID. If @code{GNUTLS_X509_DN_OID_RETURN_OID} is specified this function will return the given OID if no descriptive name has been found. @strong{Returns:} A null terminated string or NULL otherwise. @strong{Since:} 3.0 @end deftypefun