Gitiles
Code Review Sign In
gerrit.twrp.me / android_bootable_recovery / c26ba0d34424e9526a46bea23e9753d59a6be55c / . / libblkid / libuuid / src / uuid.h
blob: 30bd4c0e0849bdb9f2d6b0af41e9ca9a1d6fba29 [file] [log] [blame]
bigbiff7b4c7a62015-01-01 19:44:14 -0500[diff] [blame]1/*
2 * Public include file for the UUID library
3 *
4 * Copyright (C) 1996, 1997, 1998 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#ifndef _UUID_UUID_H
36#define _UUID_UUID_H
37
38#include <sys/types.h>
39#ifndef _WIN32
40#include <sys/time.h>
41#endif
42#include <time.h>
43
44typedef unsigned char uuid_t[16];
45
46/* UUID Variant definitions */
47#define UUID_VARIANT_NCS 0
48#define UUID_VARIANT_DCE 1
49#define UUID_VARIANT_MICROSOFT 2
50#define UUID_VARIANT_OTHER 3
51
52/* UUID Type definitions */
53#define UUID_TYPE_DCE_TIME 1
54#define UUID_TYPE_DCE_RANDOM 4
55
56/* Allow UUID constants to be defined */
57#ifdef __GNUC__
58#define UUID_DEFINE(name,u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15) \
59 static const uuid_t name __attribute__ ((unused)) = {u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15}
60#else
61#define UUID_DEFINE(name,u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15) \
62 static const uuid_t name = {u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15}
63#endif
64
65#ifdef __cplusplus
66extern "C" {
67#endif
68
69/* clear.c */
70extern void uuid_clear(uuid_t uu);
71
72/* compare.c */
73extern int uuid_compare(const uuid_t uu1, const uuid_t uu2);
74
75/* copy.c */
76extern void uuid_copy(uuid_t dst, const uuid_t src);
77
78/* gen_uuid.c */
79extern void uuid_generate(uuid_t out);
80extern void uuid_generate_random(uuid_t out);
81extern void uuid_generate_time(uuid_t out);
82extern int uuid_generate_time_safe(uuid_t out);
83
84/* isnull.c */
85extern int uuid_is_null(const uuid_t uu);
86
87/* parse.c */
88extern int uuid_parse(const char *in, uuid_t uu);
89
90/* unparse.c */
91extern void uuid_unparse(const uuid_t uu, char *out);
92extern void uuid_unparse_lower(const uuid_t uu, char *out);
93extern void uuid_unparse_upper(const uuid_t uu, char *out);
94
95/* uuid_time.c */
96extern time_t uuid_time(const uuid_t uu, struct timeval *ret_tv);
97extern int uuid_type(const uuid_t uu);
98extern int uuid_variant(const uuid_t uu);
99
100#ifdef __cplusplus
101}
102#endif
103
104#endif /* _UUID_UUID_H */