pack.c revision d1154eb460efe588eaed3d439c1caaca149fa362 
1/*
2 * Internal routine for packing UUID's
3 *
4 * Copyright (C) 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, and the entire permission notice in its entirety,
12 *    including the disclaimer of warranties.
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 * 3. The name of the author may not be used to endorse or promote
17 *    products derived from this software without specific prior
18 *    written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
21 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
23 * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
27 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
30 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
31 * DAMAGE.
32 * %End-Header%
33 */
34
35#include "config.h"
36#include <string.h>
37#include "uuidP.h"
38
39void uuid_pack(const struct uuid *uu, uuid_t ptr)
40{
41	uint32_t	tmp;
42	unsigned char	*out = ptr;
43
44	tmp = uu->time_low;
45	out[3] = (unsigned char) tmp;
46	tmp >>= 8;
47	out[2] = (unsigned char) tmp;
48	tmp >>= 8;
49	out[1] = (unsigned char) tmp;
50	tmp >>= 8;
51	out[0] = (unsigned char) tmp;
52
53	tmp = uu->time_mid;
54	out[5] = (unsigned char) tmp;
55	tmp >>= 8;
56	out[4] = (unsigned char) tmp;
57
58	tmp = uu->time_hi_and_version;
59	out[7] = (unsigned char) tmp;
60	tmp >>= 8;
61	out[6] = (unsigned char) tmp;
62
63	tmp = uu->clock_seq;
64	out[9] = (unsigned char) tmp;
65	tmp >>= 8;
66	out[8] = (unsigned char) tmp;
67
68	memcpy(out+10, uu->node, 6);
69}
70
71