summaryrefslogtreecommitdiff
path: root/locale/locarchive.h
blob: c1acd0bd8754730ee2ad658b98f0abb566c11315 (plain)
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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
/* Definitions for locale archive handling.
   Copyright (C) 2002-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#ifndef _LOCARCHIVE_H
#define _LOCARCHIVE_H 1

#include <stdint.h>


#define AR_MAGIC 0xde020109

struct locarhead
{
  uint32_t magic;
  /* Serial number.  */
  uint32_t serial;
  /* Name hash table.  */
  uint32_t namehash_offset;
  uint32_t namehash_used;
  uint32_t namehash_size;
  /* String table.  */
  uint32_t string_offset;
  uint32_t string_used;
  uint32_t string_size;
  /* Table with locale records.  */
  uint32_t locrectab_offset;
  uint32_t locrectab_used;
  uint32_t locrectab_size;
  /* MD5 sum hash table.  */
  uint32_t sumhash_offset;
  uint32_t sumhash_used;
  uint32_t sumhash_size;
};


struct namehashent
{
  /* Hash value of the name.  */
  uint32_t hashval;
  /* Offset of the name in the string table.  */
  uint32_t name_offset;
  /* Offset of the locale record.  */
  uint32_t locrec_offset;
};


struct sumhashent
{
  /* MD5 sum.  */
  char sum[16];
  /* Offset of the file in the archive.  */
  uint32_t file_offset;
};

struct locrecent
{
  uint32_t refs;		/* # of namehashent records that point here */
  struct
  {
    uint32_t offset;
    uint32_t len;
  } record[__LC_LAST];
};


struct locarhandle
{
  /* Full path to the locale archive file.  */
  const char *fname;
  int fd;
  void *addr;
  size_t mmaped;
  size_t reserved;
  /* If this mmap required adjustment (such as re-aligning), then this is the
     real address that was returned from mmap and thus should be passed to the
     munmap call.  The addr field above is the first usable address.  */
  void *mmap_base;
  /* Same as above for mmap_base vs addr, but this is the real length of the
     map rather than the usable (which is what reserved represents).  */
  size_t mmap_len;
};


/* In memory data for the locales with their checksums.  */
typedef struct locale_category_data
{
  off64_t size;
  void *addr;
  char sum[16];
} locale_data_t[__LC_LAST];

#endif	/* locarchive.h */