1 /*- 2 * Copyright (c) 2002,2005 Marcel Moolenaar 3 * Copyright (c) 2002 Hiten Mahesh Pandya 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/lib/libc/uuid/uuid_to_string.c,v 1.3 2005/01/03 02:56:15 marcel Exp $ 28 */ 29 30 #include <stdio.h> 31 #include <string.h> 32 #include <uuid.h> 33 34 /* 35 * uuid_to_string() - Convert a binary UUID into a string representation. 36 * See also: 37 * http://www.opengroup.org/onlinepubs/009629399/uuid_to_string.htm 38 * 39 * NOTE: The references given above do not have a status code for when 40 * the string could not be allocated. The status code has been 41 * taken from the Hewlett-Packard implementation. 42 */ 43 void 44 uuid_to_string(const uuid_t *u, char **s, uint32_t *status) 45 { 46 uuid_t nil; 47 48 if (status != NULL) 49 *status = uuid_s_ok; 50 51 /* Why allow a NULL-pointer here? */ 52 if (s == NULL) 53 return; 54 55 if (u == NULL) { 56 u = &nil; 57 uuid_create_nil(&nil, NULL); 58 } 59 60 asprintf(s, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x", 61 u->time_low, u->time_mid, u->time_hi_and_version, 62 u->clock_seq_hi_and_reserved, u->clock_seq_low, u->node[0], 63 u->node[1], u->node[2], u->node[3], u->node[4], u->node[5]); 64 65 if (*s == NULL && status != NULL) 66 *status = uuid_s_no_memory; 67 } 68