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#include <newlib.h>

#ifdef _MB_CAPABLE 

/* Load needed message catalogs.

   Copyright (C) 1995-1999, 2000, 2001 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, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

/* Tell glibc's <string.h> to provide a prototype for mempcpy().

   This must come before <config.h> because <config.h> may include

   <features.h>, and once <features.h> has been included, it's too late.  */

#ifndef _GNU_SOURCE

# define _GNU_SOURCE    1

#endif

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <ctype.h>

#include <errno.h>

#include <fcntl.h>

#include <sys/types.h>

#include <sys/stat.h>

#ifdef __GNUC__

# define alloca __builtin_alloca

# define HAVE_ALLOCA 1

#else

# if defined HAVE_ALLOCA_H || defined _LIBC

#  include <alloca.h>

# else

#  ifdef _AIX

 #pragma alloca

#  else

#   ifndef alloca

char *alloca ();

#   endif

#  endif

# endif

#endif

#if defined STDC_HEADERS || defined _LIBC

# include <stdlib.h>

#endif

#if defined HAVE_STRING_H || defined _LIBC

# include <string.h>

#else

# include <strings.h>

#endif

#if defined HAVE_UNISTD_H || defined _LIBC

# include <unistd.h>

#endif

#ifdef _LIBC

# include <langinfo.h>

# include <locale.h>

#endif

#if (defined HAVE_MMAP && defined HAVE_MUNMAP && !defined DISALLOW_MMAP) \

    || (defined _LIBC && defined _POSIX_MAPPED_FILES)

# include <sys/mman.h>

# undef HAVE_MMAP

# define HAVE_MMAP      1

#else

# undef HAVE_MMAP

#endif

#include "gettext.h"

#include "gettextP.h"

#ifdef _GLIBC

# include "localeinfo.h"

#endif

/* @@ end of prolog @@ */

#ifdef _LIBC

/* Rename the non ISO C functions.  This is required by the standard

   because some ISO C functions will require linking with this object

   file and the name space must not be polluted.  */

# define open   __open

# define close  __close

# define read   __read

# define mmap   __mmap

# define munmap __munmap

#endif

/* Names for the libintl functions are a problem.  They must not clash

   with existing names and they should follow ANSI C.  But this source

   code is also used in GNU C Library where the names have a __

   prefix.  So we have to make a difference here.  */

#ifdef _LIBC

# define PLURAL_PARSE __gettextparse

#else

# define PLURAL_PARSE gettextparse__

#endif

/* For those losing systems which don't have `alloca' we have to add

   some additional code emulating it.  */

#ifdef HAVE_ALLOCA

# define freea(p) /* nothing */

#else

# define alloca(n) malloc (n)

# define freea(p) free (p)

#endif

/* We need a sign, whether a new catalog was loaded, which can be associated

   with all translations.  This is important if the translations are

   cached by one of GCC's features.  */

int _nl_msg_cat_cntr;

#if defined __GNUC__ \

    || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)

/* These structs are the constant expression for the germanic plural

   form determination.  It represents the expression  "n != 1".  */

static const struct expression plvar =

{

  .nargs = 0,

  .operation = var,

};

static const struct expression plone =

{

  .nargs = 0,

  .operation = num,

  .val =

  {

    .num = 1

  }

};

static struct expression germanic_plural =

{

  .nargs = 2,

  .operation = not_equal,

  .val =

  {

    .args =

    {

      [0] = (struct expression *) &plvar,

      [1] = (struct expression *) &plone

    }

  }

};

# define INIT_GERMANIC_PLURAL()

#else

/* For compilers without support for ISO C 99 struct/union initializers:

   Initialization at run-time.  */

static struct expression plvar;

static struct expression plone;

static struct expression germanic_plural;

static void

init_germanic_plural ()

{

  if (plone.val.num == 0)

    {

      plvar.nargs = 0;

      plvar.operation = var;

      plone.nargs = 0;

      plone.operation = num;

      plone.val.num = 1;

      germanic_plural.nargs = 2;

      germanic_plural.operation = not_equal;

      germanic_plural.val.args[0] = &plvar;

      germanic_plural.val.args[1] = &plone;

    }

}

# define INIT_GERMANIC_PLURAL() init_germanic_plural ()

#endif

/* Initialize the codeset dependent parts of an opened message catalog.

   Return the header entry.  */

const char *

internal_function

_nl_init_domain_conv (domain_file, domain, domainbinding)

     struct loaded_l10nfile *domain_file;

     struct loaded_domain *domain;

     struct binding *domainbinding;

{

  /* Find out about the character set the file is encoded with.

     This can be found (in textual form) in the entry "".  If this

     entry does not exist or if this does not contain the `charset='

     information, we will assume the charset matches the one the

     current locale and we don't have to perform any conversion.  */

  char *nullentry;

  size_t nullentrylen;

  /* Preinitialize fields, to avoid recursion during _nl_find_msg.  */

  domain->codeset_cntr =

    (domainbinding != NULL ? domainbinding->codeset_cntr : 0);

#ifdef _GLIBC

  domain->conv = (__gconv_t) -1;

#else

# if HAVE_ICONV

  domain->conv = (iconv_t) -1;

# endif

#endif

  domain->conv_tab = NULL;

  /* Get the header entry.  */

  nullentry = _nl_find_msg (domain_file, domainbinding, "", &nullentrylen);

  if (nullentry != NULL)

    {

#if defined _LIBC || HAVE_ICONV

      const char *charsetstr;

      charsetstr = strstr (nullentry, "charset=");

      if (charsetstr != NULL)

        {

          size_t len;

          char *charset;

          const char *outcharset;

          charsetstr += strlen ("charset=");

          len = strcspn (charsetstr, " \t\n");

          charset = (char *) alloca (len + 1);

# if defined _LIBC || HAVE_MEMPCPY

          *((char *) mempcpy (charset, charsetstr, len)) = '\0';

# else

          memcpy (charset, charsetstr, len);

          charset[len] = '\0';

# endif

          /* The output charset should normally be determined by the

             locale.  But sometimes the locale is not used or not correctly

             set up, so we provide a possibility for the user to override

             this.  Moreover, the value specified through

             bind_textdomain_codeset overrides both.  */

          if (domainbinding != NULL && domainbinding->codeset != NULL)

            outcharset = domainbinding->codeset;

          else

            {

              outcharset = getenv ("OUTPUT_CHARSET");

              if (outcharset == NULL || outcharset[0] == '\0')

                {

# ifdef _GLIBC

                  outcharset = (*_nl_current[LC_CTYPE])->values[_NL_ITEM_INDEX (CODESET)].string;

# else

#  if HAVE_ICONV

                  extern const char *__locale_msgcharset (void);

                  outcharset = __locale_msgcharset ();

#  endif

# endif

                }

            }

# ifdef _GLIBC

          /* We always want to use transliteration.  */

          outcharset = norm_add_slashes (outcharset, "TRANSLIT");

          charset = norm_add_slashes (charset, NULL);

          if (__gconv_open (outcharset, charset, &domain->conv,

                            GCONV_AVOID_NOCONV)

              != __GCONV_OK)

            domain->conv = (__gconv_t) -1;

# else

#  if HAVE_ICONV

          /* When using GNU libiconv, we want to use transliteration.  */

#   if _LIBICONV_VERSION

          len = strlen (outcharset);

          {

            char *tmp = (char *) alloca (len + 10 + 1);

            memcpy (tmp, outcharset, len);

            memcpy (tmp + len, "//TRANSLIT", 10 + 1);

            outcharset = tmp;

          }

#   endif

          domain->conv = iconv_open (outcharset, charset);

#   if _LIBICONV_VERSION

          freea (outcharset);

#   endif

#  endif

# endif

          freea (charset);

        }

#endif /* _LIBC || HAVE_ICONV */

    }

  return nullentry;

}

/* Frees the codeset dependent parts of an opened message catalog.  */

void

internal_function

_nl_free_domain_conv (domain)

     struct loaded_domain *domain;

{

  if (domain->conv_tab != NULL && domain->conv_tab != (char **) -1)

    free (domain->conv_tab);

#ifdef _GLIBC

  if (domain->conv != (__gconv_t) -1)

    __gconv_close (domain->conv);

#else

# if HAVE_ICONV

  if (domain->conv != (iconv_t) -1)

    iconv_close (domain->conv);

# endif

#endif

}

/* Load the message catalogs specified by FILENAME.  If it is no valid

   message catalog do nothing.  */

void

internal_function

_nl_load_domain (domain_file, domainbinding)

     struct loaded_l10nfile *domain_file;

     struct binding *domainbinding;

{

  int fd;

  size_t size;

#ifdef _LIBC

  struct stat64 st;

#else

  struct stat st;

#endif

  struct mo_file_header *data = (struct mo_file_header *) -1;

  int use_mmap = 0;

  struct loaded_domain *domain;

  const char *nullentry;

  domain_file->decided = 1;

  domain_file->data = NULL;

  /* Note that it would be useless to store domainbinding in domain_file

     because domainbinding might be == NULL now but != NULL later (after

     a call to bind_textdomain_codeset).  */

  /* If the record does not represent a valid locale the FILENAME

     might be NULL.  This can happen when according to the given

     specification the locale file name is different for XPG and CEN

     syntax.  */

  if (domain_file->filename == NULL)

    return;

  /* Try to open the addressed file.  */

  fd = open (domain_file->filename, O_RDONLY);

  if (fd == -1)

    return;

  /* We must know about the size of the file.  */

  if (

#ifdef _LIBC

      __builtin_expect (fstat64 (fd, &st) != 0, 0)

#else

      __builtin_expect (fstat (fd, &st) != 0, 0)

#endif

      || __builtin_expect ((size = (size_t) st.st_size) != st.st_size, 0)

      || __builtin_expect (size < sizeof (struct mo_file_header), 0))

    {

      /* Something went wrong.  */

      close (fd);

      return;

    }

#ifdef HAVE_MMAP

  /* Now we are ready to load the file.  If mmap() is available we try

     this first.  If not available or it failed we try to load it.  */

  data = (struct mo_file_header *) mmap (NULL, size, PROT_READ,

                                         MAP_PRIVATE, fd, 0);

  if (__builtin_expect (data != (struct mo_file_header *) -1, 1))

    {

      /* mmap() call was successful.  */

      close (fd);

      use_mmap = 1;

    }

#endif

  /* If the data is not yet available (i.e. mmap'ed) we try to load

     it manually.  */

  if (data == (struct mo_file_header *) -1)

    {

      size_t to_read;

      char *read_ptr;

      data = (struct mo_file_header *) malloc (size);

      if (data == NULL)

        return;

      to_read = size;

      read_ptr = (char *) data;

      do

        {

          long int nb = (long int) read (fd, read_ptr, to_read);

          if (nb <= 0)

            {

#ifdef EINTR

              if (nb == -1 && errno == EINTR)

                continue;

#endif

              close (fd);

              return;

            }

          read_ptr += nb;

          to_read -= nb;

        }

      while (to_read > 0);

      close (fd);

    }

  /* Using the magic number we can test whether it really is a message

     catalog file.  */

  if (__builtin_expect (data->magic != _MAGIC && data->magic != _MAGIC_SWAPPED,

                        0))

    {

      /* The magic number is wrong: not a message catalog file.  */

#ifdef HAVE_MMAP

      if (use_mmap)

        munmap ((caddr_t) data, size);

      else

#endif

        free (data);

      return;

    }

  domain = (struct loaded_domain *) malloc (sizeof (struct loaded_domain));

  if (domain == NULL)

    return;

  domain_file->data = domain;

  domain->data = (char *) data;

  domain->use_mmap = use_mmap;

  domain->mmap_size = size;

  domain->must_swap = data->magic != _MAGIC;

  /* Fill in the information about the available tables.  */

  switch (W (domain->must_swap, data->revision))

    {

    case 0:

      domain->nstrings = W (domain->must_swap, data->nstrings);

      domain->orig_tab = (struct string_desc *)

        ((char *) data + W (domain->must_swap, data->orig_tab_offset));

      domain->trans_tab = (struct string_desc *)

        ((char *) data + W (domain->must_swap, data->trans_tab_offset));

      domain->hash_size = W (domain->must_swap, data->hash_tab_size);

      domain->hash_tab = (nls_uint32 *)

        ((char *) data + W (domain->must_swap, data->hash_tab_offset));

      break;

    default:

      /* This is an invalid revision.  */

#ifdef HAVE_MMAP

      if (use_mmap)

        munmap ((caddr_t) data, size);

      else

#endif

        free (data);

      free (domain);

      domain_file->data = NULL;

      return;

    }

  /* Now initialize the character set converter from the character set

     the file is encoded with (found in the header entry) to the domain's

     specified character set or the locale's character set.  */

  nullentry = _nl_init_domain_conv (domain_file, domain, domainbinding);

  /* Also look for a plural specification.  */

  if (nullentry != NULL)

    {

      const char *plural;

      const char *nplurals;

      plural = strstr (nullentry, "plural=");

      nplurals = strstr (nullentry, "nplurals=");

      if (plural == NULL || nplurals == NULL)

        goto no_plural;

      else

        {

          /* First get the number.  */

          char *endp;

          unsigned long int n;

          struct parse_args args;

          nplurals += 9;

          while (*nplurals != '\0' && isspace (*nplurals))

            ++nplurals;

#if defined HAVE_STRTOUL || defined _LIBC

          n = strtoul (nplurals, &endp, 10);

#else

          for (endp = nplurals, n = 0; *endp >= '0' && *endp <= '9'; endp++)

            n = n * 10 + (*endp - '0');

#endif

          domain->nplurals = n;

          if (nplurals == endp)

            goto no_plural;

          /* Due to the restrictions bison imposes onto the interface of the

             scanner function we have to put the input string and the result

             passed up from the parser into the same structure which address

             is passed down to the parser.  */

          plural += 7;

          args.cp = plural;

          if (PLURAL_PARSE (&args) != 0)

            goto no_plural;

          domain->plural = args.res;

        }

    }

  else

    {

      /* By default we are using the Germanic form: singular form only

         for `one', the plural form otherwise.  Yes, this is also what

         English is using since English is a Germanic language.  */

    no_plural:

      INIT_GERMANIC_PLURAL ();

      domain->plural = &germanic_plural;

      domain->nplurals = 2;

    }

}

#ifdef _LIBC

void

internal_function

_nl_unload_domain (domain)

     struct loaded_domain *domain;

{

  if (domain->plural != &germanic_plural)

    __gettext_free_exp (domain->plural);

  _nl_free_domain_conv (domain);

# ifdef _POSIX_MAPPED_FILES

  if (domain->use_mmap)

    munmap ((caddr_t) domain->data, domain->mmap_size);

  else

# endif /* _POSIX_MAPPED_FILES */

    free ((void *) domain->data);

  free (domain);

}

#endif

#endif