1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*** tzmap.h -- zonename maps
*
* Copyright (C) 2014-2024 Sebastian Freundt
*
* Author: Sebastian Freundt <freundt@ga-group.nl>
*
* This file is part of uterus and dateutils.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the author nor the names of any contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
***/
#if !defined INCLUDED_tzmap_h_
#define INCLUDED_tzmap_h_
#include <stdint.h>
/*
** Each file begins with. . .
*/
#define TZM_MAGIC "TZm1"
typedef struct tzmap_s *tzmap_t;
typedef uint32_t znoff_t;
#define NUL_ZNOFF ((uint32_t)-1)
/** disk representation of tzm files */
struct tzmap_s {
/* magic cookie, should be TZM_MAGIC */
const char magic[4U];
/* offset of mapped names, relative to data */
znoff_t off;
/* just to round to 16 bytes boundary */
znoff_t flags[2U];
/* \nul term'd list of zonenames followed by mapped names */
const char data[];
};
/* public API */
extern tzmap_t tzm_open(const char *file);
extern void tzm_close(tzmap_t);
extern const char *tzm_find(tzmap_t m, const char *mname);
#endif /* INCLUDED_tzmap_h_ */
|
