/* Definitions for locale archive handling.

   Copyright (C) 2002-2018 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 */