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      1 /*	$NetBSD: gmo.h,v 1.1.1.1 2016/01/14 00:11:27 christos Exp $	*/
      2 
      3 /* Description of GNU message catalog format: general file layout.
      4    Copyright (C) 1995, 1997, 2000-2002, 2004 Free Software Foundation, Inc.
      5 
      6    This program is free software; you can redistribute it and/or modify it
      7    under the terms of the GNU Library General Public License as published
      8    by the Free Software Foundation; either version 2, or (at your option)
      9    any later version.
     10 
     11    This program is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14    Library General Public License for more details.
     15 
     16    You should have received a copy of the GNU Library General Public
     17    License along with this program; if not, write to the Free Software
     18    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
     19    USA.  */
     20 
     21 #ifndef _GETTEXT_H
     22 #define _GETTEXT_H 1
     23 
     24 #include <limits.h>
     25 
     26 /* @@ end of prolog @@ */
     27 
     28 /* The magic number of the GNU message catalog format.  */
     29 #define _MAGIC 0x950412de
     30 #define _MAGIC_SWAPPED 0xde120495
     31 
     32 /* Revision number of the currently used .mo (binary) file format.  */
     33 #define MO_REVISION_NUMBER 0
     34 #define MO_REVISION_NUMBER_WITH_SYSDEP_I 1
     35 
     36 /* The following contortions are an attempt to use the C preprocessor
     37    to determine an unsigned integral type that is 32 bits wide.  An
     38    alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
     39    as of version autoconf-2.13, the AC_CHECK_SIZEOF macro doesn't work
     40    when cross-compiling.  */
     41 
     42 #if __STDC__
     43 # define UINT_MAX_32_BITS 4294967295U
     44 #else
     45 # define UINT_MAX_32_BITS 0xFFFFFFFF
     46 #endif
     47 
     48 /* If UINT_MAX isn't defined, assume it's a 32-bit type.
     49    This should be valid for all systems GNU cares about because
     50    that doesn't include 16-bit systems, and only modern systems
     51    (that certainly have <limits.h>) have 64+-bit integral types.  */
     52 
     53 #ifndef UINT_MAX
     54 # define UINT_MAX UINT_MAX_32_BITS
     55 #endif
     56 
     57 #if UINT_MAX == UINT_MAX_32_BITS
     58 typedef unsigned nls_uint32;
     59 #else
     60 # if USHRT_MAX == UINT_MAX_32_BITS
     61 typedef unsigned short nls_uint32;
     62 # else
     63 #  if ULONG_MAX == UINT_MAX_32_BITS
     64 typedef unsigned long nls_uint32;
     65 #  else
     66   /* The following line is intended to throw an error.  Using #error is
     67      not portable enough.  */
     68   "Cannot determine unsigned 32-bit data type."
     69 #  endif
     70 # endif
     71 #endif
     72 
     73 
     74 /* Header for binary .mo file format.  */
     75 struct mo_file_header
     76 {
     77   /* The magic number.  */
     78   nls_uint32 magic;
     79   /* The revision number of the file format.  */
     80   nls_uint32 revision;
     81 
     82   /* The following are only used in .mo files with major revision 0 or 1.  */
     83 
     84   /* The number of strings pairs.  */
     85   nls_uint32 nstrings;
     86   /* Offset of table with start offsets of original strings.  */
     87   nls_uint32 orig_tab_offset;
     88   /* Offset of table with start offsets of translated strings.  */
     89   nls_uint32 trans_tab_offset;
     90   /* Size of hash table.  */
     91   nls_uint32 hash_tab_size;
     92   /* Offset of first hash table entry.  */
     93   nls_uint32 hash_tab_offset;
     94 
     95   /* The following are only used in .mo files with minor revision >= 1.  */
     96 
     97   /* The number of system dependent segments.  */
     98   nls_uint32 n_sysdep_segments;
     99   /* Offset of table describing system dependent segments.  */
    100   nls_uint32 sysdep_segments_offset;
    101   /* The number of system dependent strings pairs.  */
    102   nls_uint32 n_sysdep_strings;
    103   /* Offset of table with start offsets of original sysdep strings.  */
    104   nls_uint32 orig_sysdep_tab_offset;
    105   /* Offset of table with start offsets of translated sysdep strings.  */
    106   nls_uint32 trans_sysdep_tab_offset;
    107 };
    108 
    109 /* Descriptor for static string contained in the binary .mo file.  */
    110 struct string_desc
    111 {
    112   /* Length of addressed string, not including the trailing NUL.  */
    113   nls_uint32 length;
    114   /* Offset of string in file.  */
    115   nls_uint32 offset;
    116 };
    117 
    118 /* The following are only used in .mo files with minor revision >= 1.  */
    119 
    120 /* Descriptor for system dependent string segment.  */
    121 struct sysdep_segment
    122 {
    123   /* Length of addressed string, including the trailing NUL.  */
    124   nls_uint32 length;
    125   /* Offset of string in file.  */
    126   nls_uint32 offset;
    127 };
    128 
    129 /* Descriptor for system dependent string.  */
    130 struct sysdep_string
    131 {
    132   /* Offset of static string segments in file.  */
    133   nls_uint32 offset;
    134   /* Alternating sequence of static and system dependent segments.
    135      The last segment is a static segment, including the trailing NUL.  */
    136   struct segment_pair
    137   {
    138     /* Size of static segment.  */
    139     nls_uint32 segsize;
    140     /* Reference to system dependent string segment, or ~0 at the end.  */
    141     nls_uint32 sysdepref;
    142   } segments[1];
    143 };
    144 
    145 /* Marker for the end of the segments[] array.  This has the value 0xFFFFFFFF,
    146    regardless whether 'int' is 16 bit, 32 bit, or 64 bit.  */
    147 #define SEGMENTS_END ((nls_uint32) ~0)
    148 
    149 /* @@ begin of epilog @@ */
    150 
    151 #endif	/* gettext.h  */
    152