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ite |
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/* Implementation of the textdomain(3) function. |
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tothwolf |
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Copyright (C) 1995-1998, 2000, 2001, 2002 Free Software Foundation, Inc. |
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ite |
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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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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tothwolf |
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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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ite |
1.1 |
#endif |
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/* @@ end of prolog @@ */ |
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/* Name of the default text domain. */ |
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tothwolf |
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extern const char _nl_default_default_domain[] attribute_hidden; |
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ite |
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/* Default text domain in which entries for gettext(3) are to be found. */ |
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tothwolf |
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extern const char *_nl_current_default_domain attribute_hidden; |
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ite |
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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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tothwolf |
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# define TEXTDOMAIN libintl_textdomain |
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ite |
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#endif |
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/* Lock variable to protect the global data in the gettext implementation. */ |
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tothwolf |
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__libc_rwlock_define (extern, _nl_state_lock attribute_hidden) |
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ite |
1.1 |
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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 |