/* * isnull.c --- Check whether or not the UUID is null * * Copyright (C) 1996, 1997 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU * Library General Public License. * %End-Header% */ #include "uuidP.h" /* Returns 1 if the uuid is the NULL uuid */ int uuid_is_null(const uuid_t uu) { const unsigned char *cp; int i; for (i=0, cp = uu; i < 16; i++) if (*cp++) return 0; return 1; }