Function requireSuperuser

contrib/adminpack/adminpack.c:115–122

* check for superuser, bark if not. */

 * check for superuser, bark if not.
 */
static void
requireSuperuser(void)
{
	if (!superuser())
		ereport(ERROR,
				(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
				 errmsg("only superuser may access generic file functions")));
}