Initial revision

1 files changed, 407 insertions, 0 deletions

diff --git a/intl/loadmsgcat.c b/intl/loadmsgcat.c
new file mode 100644
index 0000000..4009525
--- /dev/null
+++ b/intl/loadmsgcat.c
@@ -0,0 +1,407 @@
+/* Load needed message catalogs.
+   Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  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>
+
+#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>
+#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 _LIBC
+# include "../locale/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
+
+/* 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;
+
+/* These structs are the constant expression for the germanic plural
+   form determination.  */
+static const struct expression plvar =
+{
+  .operation = var,
+};
+static const struct expression plone =
+{
+  .operation = num,
+  .val =
+  {
+    .num = 1
+  }
+};
+static struct expression germanic_plural =
+{
+  .operation = not_equal,
+  .val =
+  {
+    .args2 = {
+      .left = (struct expression *) &plvar,
+      .right = (struct expression *) &plone
+    }
+  }
+};
+
+
+/* Load the message catalogs specified by FILENAME.  If it is no valid
+   message catalog do nothing.  */
+void
+internal_function
+_nl_load_domain (domain_file)
+     struct loaded_l10nfile *domain_file;
+{
+  int fd;
+  size_t size;
+  struct stat st;
+  struct mo_file_header *data = (struct mo_file_header *) -1;
+  int use_mmap = 0;
+  struct loaded_domain *domain;
+  char *nullentry;
+
+  domain_file->decided = 1;
+  domain_file->data = NULL;
+
+  /* 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 (__builtin_expect (fstat (fd, &st) != 0, 0)
+      || __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_file->data
+    = (struct loaded_domain *) malloc (sizeof (struct loaded_domain));
+  if (domain_file->data == NULL)
+    return;
+
+  domain = (struct loaded_domain *) domain_file->data;
+  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 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.  */
+#ifdef _LIBC
+  domain->conv = (__gconv_t) -1;
+#else
+# if HAVE_ICONV
+  domain->conv = (iconv_t) -1;
+# endif
+#endif
+  domain->conv_tab = NULL;
+  nullentry = _nl_find_msg (domain_file, "", 0);
+  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 (domain_file->domainbinding != NULL
+	      && domain_file->domainbinding->codeset != NULL)
+	    outcharset = domain_file->domainbinding->codeset;
+	  else
+	    {
+	      outcharset = getenv ("OUTPUT_CHARSET");
+	      if (outcharset == NULL || outcharset[0] == '\0')
+		{
+# ifdef _LIBC
+		  outcharset = (*_nl_current[LC_CTYPE])->values[_NL_ITEM_INDEX (CODESET)].string;
+# else
+#  if HAVE_ICONV
+		  extern const char *locale_charset (void);
+		  outcharset = locale_charset ();
+		  if (outcharset == NULL)
+		    outcharset = "";
+#  endif
+# endif
+		}
+	    }
+
+# ifdef _LIBC
+	  outcharset = norm_add_slashes (outcharset);
+	  charset = norm_add_slashes (charset);
+	  if (__gconv_open (outcharset, charset, &domain->conv,
+			    GCONV_AVOID_NOCONV)
+	      != __GCONV_OK)
+	    domain->conv = (__gconv_t) -1;
+# else
+#  if HAVE_ICONV
+	  domain->conv = iconv_open (outcharset, charset);
+#  endif
+# endif
+	}
+#endif /* _LIBC || HAVE_ICONV */
+    }
+
+  /* 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;
+	  struct parse_args args;
+
+	  nplurals += 9;
+	  while (*nplurals != '\0' && isspace (*nplurals))
+	    ++nplurals;
+	  domain->nplurals = strtoul (nplurals, &endp, 10);
+	  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 (__gettextparse (&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:
+      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);
+
+#ifdef _LIBC
+  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
+
+#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