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- /* $OpenBSD: duid.c,v 1.2 2012/07/09 14:26:40 nicm Exp $ */
-
- /*
- * Copyright (c) 2010 Joel Sing <jsing@openbsd.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
- #include <string.h>
-
- #include "util.h"
-
- int
- isduid(const char *duid, int dflags)
- {
- char c;
- int i;
-
- /* Basic format check. */
- if (!((strlen(duid) == 16 && (dflags & OPENDEV_PART)) ||
- (strlen(duid) == 18 && duid[16] == '.')))
- return 0;
-
- /* Check UID. */
- for (i = 0; i < 16; i++) {
- c = duid[i];
- if ((c < '0' || c > '9') && (c < 'a' || c > 'f'))
- return 0;
- }
-
- return 1;
- }
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