locale/locarchive.h

   1 /* Definitions for locale archive handling.
   2    Copyright (C) 2002, 2009 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _LOCARCHIVE_H
  20 #define _LOCARCHIVE_H 1
  21
  22 #include <stdint.h>
  23
  24
  25 #define AR_MAGIC 0xde020109
  26
  27 struct locarhead
  28 {
  29   uint32_t magic;
  30   /* Serial number.  */
  31   uint32_t serial;
  32   /* Name hash table.  */
  33   uint32_t namehash_offset;
  34   uint32_t namehash_used;
  35   uint32_t namehash_size;
  36   /* String table.  */
  37   uint32_t string_offset;
  38   uint32_t string_used;
  39   uint32_t string_size;
  40   /* Table with locale records.  */
  41   uint32_t locrectab_offset;
  42   uint32_t locrectab_used;
  43   uint32_t locrectab_size;
  44   /* MD5 sum hash table.  */
  45   uint32_t sumhash_offset;
  46   uint32_t sumhash_used;
  47   uint32_t sumhash_size;
  48 };
  49
  50
  51 struct namehashent
  52 {
  53   /* Hash value of the name.  */
  54   uint32_t hashval;
  55   /* Offset of the name in the string table.  */
  56   uint32_t name_offset;
  57   /* Offset of the locale record.  */
  58   uint32_t locrec_offset;
  59 };
  60
  61
  62 struct sumhashent
  63 {
  64   /* MD5 sum.  */
  65   char sum[16];
  66   /* Offset of the file in the archive.  */
  67   uint32_t file_offset;
  68 };
  69
  70 struct locrecent
  71 {
  72   uint32_t refs;                /* # of namehashent records that point here */
  73   struct
  74   {
  75     uint32_t offset;
  76     uint32_t len;
  77   } record[__LC_LAST];
  78 };
  79
  80
  81 struct locarhandle
  82 {
  83   int fd;
  84   void *addr;
  85   size_t mmaped;
  86   size_t reserved;
  87 };
  88
  89
  90 /* In memory data for the locales with their checksums.  */
  91 typedef struct locale_category_data
  92 {
  93   off64_t size;
  94   void *addr;
  95   char sum[16];
  96 } locale_data_t[__LC_LAST];
  97
  98 #endif  /* locarchive.h */