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EDITING: bindtextdom.c

/* Implementation of the bindtextdomain(3) function
   Copyright (C) 1995-2016 Free Software Foundation, Inc.

This program 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.

This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stddef.h>
#include <stdlib.h>
#include <string.h>

#include "gettextP.h"
#ifdef _LIBC
# include <libintl.h>
#else
# include "libgnuintl.h"
#endif

/* Handle multi-threaded applications.  */
#ifdef _LIBC
# include <bits/libc-lock.h>
# define gl_rwlock_define __libc_rwlock_define
# define gl_rwlock_wrlock __libc_rwlock_wrlock
# define gl_rwlock_unlock __libc_rwlock_unlock
#else
# include "lock.h"
#endif

/* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>.  */
#ifndef offsetof
# define offsetof(type,ident) ((size_t)&(((type*)0)->ident))
#endif

/* @@ end of prolog @@ */

/* Lock variable to protect the global data in the gettext implementation.  */
gl_rwlock_define (extern, _nl_state_lock attribute_hidden)

/* 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 BINDTEXTDOMAIN __bindtextdomain
# define BIND_TEXTDOMAIN_CODESET __bind_textdomain_codeset
# ifndef strdup
#  define strdup(str) __strdup (str)
# endif
#else
# define BINDTEXTDOMAIN libintl_bindtextdomain
# define BIND_TEXTDOMAIN_CODESET libintl_bind_textdomain_codeset
#endif

/* Specifies the directory name *DIRNAMEP and the output codeset *CODESETP
   to be used for the DOMAINNAME message catalog.
   If *DIRNAMEP or *CODESETP is NULL, the corresponding attribute is not
   modified, only the current value is returned.
   If DIRNAMEP or CODESETP is NULL, the corresponding attribute is neither
   modified nor returned.  */
static void
set_binding_values (const char *domainname,
		    const char **dirnamep, const char **codesetp)
{
  struct binding *binding;
  int modified;

/* Some sanity checks.  */
  if (domainname == NULL || domainname[0] == '\0')
    {
      if (dirnamep)
	*dirnamep = NULL;
      if (codesetp)
	*codesetp = NULL;
      return;
    }

gl_rwlock_wrlock (_nl_state_lock);

modified = 0;

for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
    {
      int compare = strcmp (domainname, binding->domainname);
      if (compare == 0)
	/* We found it!  */
	break;
      if (compare < 0)
	{
	  /* It is not in the list.  */
	  binding = NULL;
	  break;
	}
    }

if (binding != NULL)
    {
      if (dirnamep)
	{
	  const char *dirname = *dirnamep;

if (dirname == NULL)
	    /* The current binding has be to returned.  */
	    *dirnamep = binding->dirname;
	  else
	    {
	      /* The domain is already bound.  If the new value and the old
		 one are equal we simply do nothing.  Otherwise replace the
		 old binding.  */
	      char *result = binding->dirname;
	      if (strcmp (dirname, result) != 0)
		{
		  if (strcmp (dirname, _nl_default_dirname) == 0)
		    result = (char *) _nl_default_dirname;
		  else
		    {
#if defined _LIBC || defined HAVE_STRDUP
		      result = strdup (dirname);
#else
		      size_t len = strlen (dirname) + 1;
		      result = (char *) malloc (len);
		      if (__builtin_expect (result != NULL, 1))
			memcpy (result, dirname, len);
#endif
		    }

if (__builtin_expect (result != NULL, 1))
		    {
		      if (binding->dirname != _nl_default_dirname)
			free (binding->dirname);

binding->dirname = result;
		      modified = 1;
		    }
		}
	      *dirnamep = result;
	    }
	}

if (codesetp)
	{
	  const char *codeset = *codesetp;

if (codeset == NULL)
	    /* The current binding has be to returned.  */
	    *codesetp = binding->codeset;
	  else
	    {
	      /* The domain is already bound.  If the new value and the old
		 one are equal we simply do nothing.  Otherwise replace the
		 old binding.  */
	      char *result = binding->codeset;
	      if (result == NULL || strcmp (codeset, result) != 0)
		{
#if defined _LIBC || defined HAVE_STRDUP
		  result = strdup (codeset);
#else
		  size_t len = strlen (codeset) + 1;
		  result = (char *) malloc (len);
		  if (__builtin_expect (result != NULL, 1))
		    memcpy (result, codeset, len);
#endif

if (__builtin_expect (result != NULL, 1))
		    {
		      free (binding->codeset);

binding->codeset = result;
		      modified = 1;
		    }
		}
	      *codesetp = result;
	    }
	}
    }
  else if ((dirnamep == NULL || *dirnamep == NULL)
	   && (codesetp == NULL || *codesetp == NULL))
    {
      /* Simply return the default values.  */
      if (dirnamep)
	*dirnamep = _nl_default_dirname;
      if (codesetp)
	*codesetp = NULL;
    }
  else
    {
      /* We have to create a new binding.  */
      size_t len = strlen (domainname) + 1;
      struct binding *new_binding =
	(struct binding *) malloc (offsetof (struct binding, domainname) + len);

if (__builtin_expect (new_binding == NULL, 0))
	goto failed;

memcpy (new_binding->domainname, domainname, len);

if (dirnamep)
	{
	  const char *dirname = *dirnamep;

if (dirname == NULL)
	    /* The default value.  */
	    dirname = _nl_default_dirname;
	  else
	    {
	      if (strcmp (dirname, _nl_default_dirname) == 0)
		dirname = _nl_default_dirname;
	      else
		{
		  char *result;
#if defined _LIBC || defined HAVE_STRDUP
		  result = strdup (dirname);
		  if (__builtin_expect (result == NULL, 0))
		    goto failed_dirname;
#else
		  size_t len = strlen (dirname) + 1;
		  result = (char *) malloc (len);
		  if (__builtin_expect (result == NULL, 0))
		    goto failed_dirname;
		  memcpy (result, dirname, len);
#endif
		  dirname = result;
		}
	    }
	  *dirnamep = dirname;
	  new_binding->dirname = (char *) dirname;
	}
      else
	/* The default value.  */
	new_binding->dirname = (char *) _nl_default_dirname;

if (codesetp)
	{
	  const char *codeset = *codesetp;

if (codeset != NULL)
	    {
	      char *result;

#if defined _LIBC || defined HAVE_STRDUP
	      result = strdup (codeset);
	      if (__builtin_expect (result == NULL, 0))
		goto failed_codeset;
#else
	      size_t len = strlen (codeset) + 1;
	      result = (char *) malloc (len);
	      if (__builtin_expect (result == NULL, 0))
		goto failed_codeset;
	      memcpy (result, codeset, len);
#endif
	      codeset = result;
	    }
	  *codesetp = codeset;
	  new_binding->codeset = (char *) codeset;
	}
      else
	new_binding->codeset = NULL;

/* Now enqueue it.  */
      if (_nl_domain_bindings == NULL
	  || strcmp (domainname, _nl_domain_bindings->domainname) < 0)
	{
	  new_binding->next = _nl_domain_bindings;
	  _nl_domain_bindings = new_binding;
	}
      else
	{
	  binding = _nl_domain_bindings;
	  while (binding->next != NULL
		 && strcmp (domainname, binding->next->domainname) > 0)
	    binding = binding->next;

new_binding->next = binding->next;
	  binding->next = new_binding;
	}

modified = 1;

/* Here we deal with memory allocation failures.  */
      if (0)
	{
	failed_codeset:
	  if (new_binding->dirname != _nl_default_dirname)
	    free (new_binding->dirname);
	failed_dirname:
	  free (new_binding);
	failed:
	  if (dirnamep)
	    *dirnamep = NULL;
	  if (codesetp)
	    *codesetp = NULL;
	}
    }

/* If we modified any binding, we flush the caches.  */
  if (modified)
    ++_nl_msg_cat_cntr;

gl_rwlock_unlock (_nl_state_lock);
}

/* Specify that the DOMAINNAME message catalog will be found
   in DIRNAME rather than in the system locale data base.  */
char *
BINDTEXTDOMAIN (const char *domainname, const char *dirname)
{
#ifdef __EMX__
  const char *saved_dirname = dirname;
  char dirname_with_drive[_MAX_PATH];

/* Resolve UNIXROOT into dirname if it is not resolved by os2compat.[ch]. */
  if (dirname && (dirname[0] == '/' || dirname[0] == '\\' ))
    {
      const char *unixroot = getenv ("UNIXROOT");
      size_t len = strlen (dirname) + 1;

if (unixroot
          && unixroot[0] != '\0'
          && unixroot[1] == ':'
          && unixroot[2] == '\0'
          && 2 + len <= _MAX_PATH)
        {
          memcpy (dirname_with_drive, unixroot, 2);
          memcpy (dirname_with_drive + 2, dirname, len);

dirname = dirname_with_drive;
        }
    }
#endif
  set_binding_values (domainname, &dirname, NULL);
#ifdef __EMX__
  dirname = saved_dirname;
#endif
  return (char *) dirname;
}

/* Specify the character encoding in which the messages from the
   DOMAINNAME message catalog will be returned.  */
char *
BIND_TEXTDOMAIN_CODESET (const char *domainname, const char *codeset)
{
  set_binding_values (domainname, NULL, &codeset);
  return (char *) codeset;
}

#ifdef _LIBC
/* Aliases for function names in GNU C Library.  */
weak_alias (__bindtextdomain, bindtextdomain);
weak_alias (__bind_textdomain_codeset, bind_textdomain_codeset);
#endif

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📄 bindtextdom.c	C	9.3 KB	2016-03-20 07:37	EDIT
📄 config.charset	CHARSET	22.5 KB	2015-01-24 07:21	EDIT
📄 COPYING.LIB	LIB	25.9 KB	2014-12-13 03:48	EDIT
📄 dcgettext.c	C	1.7 KB	2016-03-20 07:37	EDIT
📄 dcigettext.c	C	46.5 KB	2016-05-28 00:28	EDIT
📄 dcngettext.c	C	1.7 KB	2016-03-20 07:37	EDIT
📄 dgettext.c	C	1.7 KB	2016-03-20 07:37	EDIT
📄 dngettext.c	C	1.8 KB	2016-03-20 07:37	EDIT
📄 eval-plural.h	H	2.7 KB	2016-03-20 07:37	EDIT
📄 explodename.c	C	3.3 KB	2016-03-20 07:37	EDIT
📄 export.h	H	157 B	2014-12-11 13:11	EDIT
📄 finddomain.c	C	5.9 KB	2016-03-20 07:37	EDIT
📄 gettext.c	C	1.8 KB	2016-03-20 07:37	EDIT
📄 gettextP.h	H	9.9 KB	2016-05-28 00:28	EDIT
📄 gmo.h	H	4.7 KB	2016-03-20 07:37	EDIT
📄 hash-string.c	C	1.5 KB	2016-03-20 07:37	EDIT
📄 hash-string.h	H	1.3 KB	2016-03-20 07:37	EDIT
📄 intl-compat.c	C	3.4 KB	2016-03-20 07:37	EDIT
📄 intl-exports.c	C	1.7 KB	2016-03-20 07:37	EDIT
📄 l10nflist.c	C	10.6 KB	2016-03-20 07:37	EDIT
📄 langprefs.c	C	12.4 KB	2016-03-20 07:37	EDIT
📄 libgnuintl.in.h	H	16.4 KB	2016-06-09 22:56	EDIT
📄 libintl.rc	RC	1.6 KB	2014-12-11 13:02	EDIT
📄 loadinfo.h	H	5 KB	2016-03-20 07:37	EDIT
📄 loadmsgcat.c	C	33.7 KB	2016-03-20 07:37	EDIT
📄 localcharset.c	C	20 KB	2015-01-24 07:21	EDIT
📄 localcharset.h	H	1.3 KB	2015-06-05 21:52	EDIT
📄 locale.alias	ALIAS	3 KB	2015-06-23 12:09	EDIT
📄 localealias.c	C	10.4 KB	2016-03-20 07:37	EDIT
📄 localename.c	C	84.1 KB	2016-03-20 07:37	EDIT
📄 lock.c	C	26.2 KB	2016-03-20 07:37	EDIT
📄 lock.h	H	35.5 KB	2016-03-20 07:37	EDIT
📄 log.c	C	3.8 KB	2016-03-20 07:37	EDIT
📄 Makefile.in	IN	24.5 KB	2016-06-11 07:37	EDIT
📄 ngettext.c	C	1.9 KB	2016-03-20 07:37	EDIT
📄 os2compat.c	C	2.8 KB	2016-03-20 07:37	EDIT
📄 os2compat.h	H	1.5 KB	2016-03-20 07:37	EDIT
📄 osdep.c	C	988 B	2016-03-20 07:37	EDIT
📄 plural-exp.c	C	3.8 KB	2016-05-28 00:29	EDIT
📄 plural-exp.h	H	4.5 KB	2016-05-28 00:29	EDIT
📄 plural.c	C	52 KB	2016-06-11 13:02	EDIT
📄 plural.y	Y	7.3 KB	2016-03-20 07:37	EDIT
📄 printf-args.c	C	6.4 KB	2016-03-20 07:37	EDIT
📄 printf-args.h	H	3.9 KB	2016-03-20 07:37	EDIT
📄 printf-parse.c	C	21.7 KB	2016-03-20 07:37	EDIT
📄 printf-parse.h	H	2.5 KB	2016-03-20 07:37	EDIT
📄 printf.c	C	10.1 KB	2016-03-20 07:37	EDIT
📄 ref-add.sin	SIN	1 KB	2016-03-20 07:37	EDIT
📄 ref-del.sin	SIN	996 B	2016-03-20 07:37	EDIT
📄 relocatable.c	C	17.1 KB	2016-03-20 07:37	EDIT
📄 relocatable.h	H	3.1 KB	2016-03-20 07:37	EDIT
📄 setlocale.c	C	32.3 KB	2016-03-20 07:37	EDIT
📄 textdomain.c	C	3.7 KB	2016-03-20 07:37	EDIT
📄 threadlib.c	C	1.9 KB	2016-03-20 07:37	EDIT
📄 tsearch.c	C	21 KB	2016-03-20 07:37	EDIT
📄 tsearch.h	H	2.7 KB	2016-03-20 07:37	EDIT
📄 vasnprintf.c	C	218.1 KB	2016-03-20 07:37	EDIT
📄 vasnprintf.h	H	2.7 KB	2016-03-20 07:37	EDIT
📄 vasnwprintf.h	H	1.6 KB	2016-03-20 07:37	EDIT
📄 verify.h	H	10.8 KB	2016-03-20 07:37	EDIT
📄 VERSION	?	42 B	2019-11-18 17:16	EDIT
📄 version.c	C	935 B	2016-03-20 07:37	EDIT
📄 wprintf-parse.h	H	2.6 KB	2016-03-20 07:37	EDIT
📄 xsize.c	C	78 B	2014-12-11 13:11	EDIT
📄 xsize.h	H	3.6 KB	2016-03-20 07:37	EDIT