1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002,2005 Marcel Moolenaar 5 * Copyright (c) 2002 Hiten Mahesh Pandya 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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. 16 * 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 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <stdio.h> 33 #include <string.h> 34 #include <uuid.h> 35 36 /* 37 * uuid_to_string() - Convert a binary UUID into a string representation. 38 * See also: 39 * http://www.opengroup.org/onlinepubs/009629399/uuid_to_string.htm 40 * 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. 44 */ 45 void 46 uuid_to_string(const uuid_t *u, char **s, uint32_t *status) 47 { 48 uuid_t nil; 49 50 if (status != NULL) 51 *status = uuid_s_ok; 52 53 /* Why allow a NULL-pointer here? */ 54 if (s == NULL) 55 return; 56 57 if (u == NULL) { 58 u = &nil; 59 uuid_create_nil(&nil, NULL); 60 } 61 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]); 66 67 if (*s == NULL && status != NULL) 68 *status = uuid_s_no_memory; 69 } 70