Add uuid support routines to libc. From FreeBSD via NetBSD via Bitrig via

Markus Mueller.

1 files changed, 55 insertions, 0 deletions

diff --git a/lib/libc/uuid/uuid_is_nil.c b/lib/libc/uuid/uuid_is_nil.c
new file mode 100644
index 00000000000..4de961233fd
--- /dev/null
+++ b/lib/libc/uuid/uuid_is_nil.c
@@ -0,0 +1,55 @@
+/*	$OpenBSD: uuid_is_nil.c,v 1.1 2014/08/31 09:36:39 miod Exp $	*/
+/*	$NetBSD: uuid_is_nil.c,v 1.4 2008/04/23 07:52:32 plunky Exp $	*/
+
+/*
+ * Copyright (c) 2002 Marcel Moolenaar
+ * Copyright (c) 2002 Hiten Mahesh Pandya
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/lib/libc/uuid/uuid_is_nil.c,v 1.2 2003/08/08 19:18:43 marcel Exp $
+ */
+
+#include "namespace.h"
+
+#include <string.h>
+#include <uuid.h>
+
+/*
+ * uuid_is_nil() - return whether the UUID is a nil UUID.
+ * See also:
+ *	http://www.opengroup.org/onlinepubs/009629399/uuid_is_nil.htm
+ */
+int32_t
+uuid_is_nil(const uuid_t *u, uint32_t *status)
+{
+	static const uuid_t nil = { .time_low = 0 };
+
+	if (status)
+		*status = uuid_s_ok;
+
+	if (!u)
+		return (1);
+
+	return (memcmp(u, &nil, sizeof(uuid_t)) == 0 ? 1 : 0);
+}