2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2002,2005 Marcel Moolenaar
5 * Copyright (c) 2002 Hiten Mahesh Pandya
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * uuid_to_string() - Convert a binary UUID into a string representation.
39 * http://www.opengroup.org/onlinepubs/009629399/uuid_to_string.htm
41 * NOTE: The references given above do not have a status code for when
42 * the string could not be allocated. The status code has been
43 * taken from the Hewlett-Packard implementation.
46 uuid_to_string(const uuid_t *u, char **s, uint32_t *status)
53 /* Why allow a NULL-pointer here? */
59 uuid_create_nil(&nil, NULL);
62 asprintf(s, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
63 u->time_low, u->time_mid, u->time_hi_and_version,
64 u->clock_seq_hi_and_reserved, u->clock_seq_low, u->node[0],
65 u->node[1], u->node[2], u->node[3], u->node[4], u->node[5]);
67 if (*s == NULL && status != NULL)
68 *status = uuid_s_no_memory;