1 /* $NetBSD: uuid_stream.c,v 1.3 2008/04/19 18:21:38 plunky Exp $ */
4 * Copyright (c) 2002 Marcel Moolenaar
7 * Redistribution and use in source and binary forms, with or without
8 * 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 ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/endian.h>
36 * Encode/Decode UUID into octet-stream.
37 * http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt
40 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
41 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
43 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
44 * | time_mid | time_hi_and_version |
45 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
46 * |clk_seq_hi_res | clk_seq_low | node (0-1) |
47 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
49 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
51 * NOTE: These routines are not part of the DCE RPC API. They are
52 * provided for convenience.
56 uuid_enc_le(void *buf, const uuid_t *uuid)
61 le32enc(p, uuid->time_low);
62 le16enc(p + 4, uuid->time_mid);
63 le16enc(p + 6, uuid->time_hi_and_version);
64 p[8] = uuid->clock_seq_hi_and_reserved;
65 p[9] = uuid->clock_seq_low;
66 for (i = 0; i < _UUID_NODE_LEN; i++)
67 p[10 + i] = uuid->node[i];
71 uuid_dec_le(const void *buf, uuid_t *uuid)
73 const uint8_t *p = buf;
76 uuid->time_low = le32dec(p);
77 uuid->time_mid = le16dec(p + 4);
78 uuid->time_hi_and_version = le16dec(p + 6);
79 uuid->clock_seq_hi_and_reserved = p[8];
80 uuid->clock_seq_low = p[9];
81 for (i = 0; i < _UUID_NODE_LEN; i++)
82 uuid->node[i] = p[10 + i];
86 uuid_enc_be(void *buf, const uuid_t *uuid)
91 be32enc(p, uuid->time_low);
92 be16enc(p + 4, uuid->time_mid);
93 be16enc(p + 6, uuid->time_hi_and_version);
94 p[8] = uuid->clock_seq_hi_and_reserved;
95 p[9] = uuid->clock_seq_low;
96 for (i = 0; i < _UUID_NODE_LEN; i++)
97 p[10 + i] = uuid->node[i];
101 uuid_dec_be(const void *buf, uuid_t *uuid)
103 const uint8_t *p = buf;
106 uuid->time_low = be32dec(p);
107 uuid->time_mid = be16dec(p + 4);
108 uuid->time_hi_and_version = be16dec(p + 6);
109 uuid->clock_seq_hi_and_reserved = p[8];
110 uuid->clock_seq_low = p[9];
111 for (i = 0; i < _UUID_NODE_LEN; i++)
112 uuid->node[i] = p[10 + i];