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* MAINTAINERS: Change intl updating instructions. * config.rpath: Copy from GCC tree. * intl: Replace contents of intl directory with intl from GCC tree.
143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/* Implementation of the textdomain(3) function.
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Copyright (C) 1995-1998, 2000, 2001, 2002 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published
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by the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
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USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#ifdef _LIBC
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# include <libintl.h>
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#else
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# include "libgnuintl.h"
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#endif
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#include "gettextP.h"
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#ifdef _LIBC
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/* We have to handle multi-threaded applications. */
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# include <bits/libc-lock.h>
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#else
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/* Provide dummy implementation if this is outside glibc. */
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# define __libc_rwlock_define(CLASS, NAME)
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# define __libc_rwlock_wrlock(NAME)
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# define __libc_rwlock_unlock(NAME)
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#endif
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/* The internal variables in the standalone libintl.a must have different
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names than the internal variables in GNU libc, otherwise programs
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using libintl.a cannot be linked statically. */
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#if !defined _LIBC
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# define _nl_default_default_domain libintl_nl_default_default_domain
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# define _nl_current_default_domain libintl_nl_current_default_domain
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#endif
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/* @@ end of prolog @@ */
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/* Name of the default text domain. */
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extern const char _nl_default_default_domain[] attribute_hidden;
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/* Default text domain in which entries for gettext(3) are to be found. */
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extern const char *_nl_current_default_domain attribute_hidden;
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/* Names for the libintl functions are a problem. They must not clash
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with existing names and they should follow ANSI C. But this source
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code is also used in GNU C Library where the names have a __
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prefix. So we have to make a difference here. */
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#ifdef _LIBC
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# define TEXTDOMAIN __textdomain
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# ifndef strdup
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# define strdup(str) __strdup (str)
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# endif
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#else
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# define TEXTDOMAIN libintl_textdomain
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#endif
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/* Lock variable to protect the global data in the gettext implementation. */
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__libc_rwlock_define (extern, _nl_state_lock attribute_hidden)
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/* Set the current default message catalog to DOMAINNAME.
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If DOMAINNAME is null, return the current default.
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If DOMAINNAME is "", reset to the default of "messages". */
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char *
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TEXTDOMAIN (domainname)
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const char *domainname;
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{
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char *new_domain;
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char *old_domain;
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/* A NULL pointer requests the current setting. */
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if (domainname == NULL)
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return (char *) _nl_current_default_domain;
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__libc_rwlock_wrlock (_nl_state_lock);
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old_domain = (char *) _nl_current_default_domain;
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/* If domain name is the null string set to default domain "messages". */
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if (domainname[0] == '\0'
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|| strcmp (domainname, _nl_default_default_domain) == 0)
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{
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_nl_current_default_domain = _nl_default_default_domain;
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new_domain = (char *) _nl_current_default_domain;
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}
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else if (strcmp (domainname, old_domain) == 0)
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/* This can happen and people will use it to signal that some
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environment variable changed. */
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new_domain = old_domain;
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else
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{
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/* If the following malloc fails `_nl_current_default_domain'
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will be NULL. This value will be returned and so signals we
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are out of core. */
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#if defined _LIBC || defined HAVE_STRDUP
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new_domain = strdup (domainname);
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#else
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size_t len = strlen (domainname) + 1;
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new_domain = (char *) malloc (len);
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if (new_domain != NULL)
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memcpy (new_domain, domainname, len);
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#endif
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if (new_domain != NULL)
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_nl_current_default_domain = new_domain;
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}
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/* We use this possibility to signal a change of the loaded catalogs
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since this is most likely the case and there is no other easy we
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to do it. Do it only when the call was successful. */
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if (new_domain != NULL)
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{
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++_nl_msg_cat_cntr;
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if (old_domain != new_domain && old_domain != _nl_default_default_domain)
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free (old_domain);
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}
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__libc_rwlock_unlock (_nl_state_lock);
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return new_domain;
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}
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#ifdef _LIBC
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/* Alias for function name in GNU C Library. */
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weak_alias (__textdomain, textdomain);
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#endif
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