1/* $NetBSD: uuid.c,v 1.2 2009/06/30 02:44:52 agc Exp $ */
2
3/*
4 * Copyright � 2006 Alistair Crooks.  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 * 3. The name of the author may not be used to endorse or promote
15 *    products derived from this software without specific prior written
16 *    permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30#include "config.h"
31
32#ifdef HAVE_INTTYPES_H
33#include <inttypes.h>
34#endif
35
36#include <sys/types.h>
37
38#ifdef HAVE_SYS_PARAM_H
39#include <sys/param.h>
40#endif
41
42#ifdef HAVE_SYS_TIME_H
43#include <sys/time.h>
44#endif
45
46#include <stdio.h>
47#include <stdlib.h>
48#include <string.h>
49#include <unistd.h>
50
51#include "storage.h"
52#include "compat.h"
53#include "defs.h"
54
55/* just fill the struct with random values for now */
56void
57nbuuid_create(nbuuid_t *uuid, uint32_t *status)
58{
59	uint64_t	ether;
60	time_t		t;
61
62	(void) time(&t);
63	ether = ((uint64_t)random() << 32) | random();
64	uuid->time_low = (int)t;
65	uuid->time_mid = (uint16_t)(random() & 0xffff);
66	uuid->time_hi_and_version = (uint16_t)(random() & 0xffff);
67	uuid->clock_seq_low = (uint8_t)(random() & 0xff);
68	uuid->clock_seq_hi_and_reserved = (uint8_t)(random() & 0xff);
69	(void) memcpy(&uuid->node, &ether, sizeof(uuid->node));
70	*status = 0;
71}
72
73/* convert the struct to a printable string */
74void
75nbuuid_to_string(nbuuid_t *uuid, char **str, uint32_t *status)
76{
77	char	s[64];
78
79	(void) snprintf(s, sizeof(s), "%8.8x-%4.4x-%4.4x-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x",
80		uuid->time_low,
81		uuid->time_mid,
82		uuid->time_hi_and_version,
83		uuid->clock_seq_hi_and_reserved,
84		uuid->clock_seq_low,
85		uuid->node[0],
86		uuid->node[1],
87		uuid->node[2],
88		uuid->node[3],
89		uuid->node[4],
90		uuid->node[5]);
91	*str = strdup(s);
92	*status = 0;
93}
94