mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-23 15:32:26 +00:00
126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/* Implementation of the textdomain(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 <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
|
|
|
|
/* @@ end of prolog @@ */
|
|
|
|
|
|
/* 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 TEXTDOMAIN __textdomain
|
|
# ifndef strdup
|
|
# define strdup(str) __strdup (str)
|
|
# endif
|
|
#else
|
|
# define TEXTDOMAIN libintl_textdomain
|
|
#endif
|
|
|
|
/* Lock variable to protect the global data in the gettext implementation. */
|
|
gl_rwlock_define (extern, _nl_state_lock attribute_hidden)
|
|
|
|
/* Set the current default message catalog to DOMAINNAME.
|
|
If DOMAINNAME is null, return the current default.
|
|
If DOMAINNAME is "", reset to the default of "messages". */
|
|
char *
|
|
TEXTDOMAIN (const char *domainname)
|
|
{
|
|
char *new_domain;
|
|
char *old_domain;
|
|
|
|
/* A NULL pointer requests the current setting. */
|
|
if (domainname == NULL)
|
|
return (char *) _nl_current_default_domain;
|
|
|
|
gl_rwlock_wrlock (_nl_state_lock);
|
|
|
|
old_domain = (char *) _nl_current_default_domain;
|
|
|
|
/* If domain name is the null string set to default domain "messages". */
|
|
if (domainname[0] == '\0'
|
|
|| strcmp (domainname, _nl_default_default_domain) == 0)
|
|
{
|
|
_nl_current_default_domain = _nl_default_default_domain;
|
|
new_domain = (char *) _nl_current_default_domain;
|
|
}
|
|
else if (strcmp (domainname, old_domain) == 0)
|
|
/* This can happen and people will use it to signal that some
|
|
environment variable changed. */
|
|
new_domain = old_domain;
|
|
else
|
|
{
|
|
/* If the following malloc fails `_nl_current_default_domain'
|
|
will be NULL. This value will be returned and so signals we
|
|
are out of core. */
|
|
#if defined _LIBC || defined HAVE_STRDUP
|
|
new_domain = strdup (domainname);
|
|
#else
|
|
size_t len = strlen (domainname) + 1;
|
|
new_domain = (char *) malloc (len);
|
|
if (new_domain != NULL)
|
|
memcpy (new_domain, domainname, len);
|
|
#endif
|
|
|
|
if (new_domain != NULL)
|
|
_nl_current_default_domain = new_domain;
|
|
}
|
|
|
|
/* We use this possibility to signal a change of the loaded catalogs
|
|
since this is most likely the case and there is no other easy we
|
|
to do it. Do it only when the call was successful. */
|
|
if (new_domain != NULL)
|
|
{
|
|
++_nl_msg_cat_cntr;
|
|
|
|
if (old_domain != new_domain && old_domain != _nl_default_default_domain)
|
|
free (old_domain);
|
|
}
|
|
|
|
gl_rwlock_unlock (_nl_state_lock);
|
|
|
|
return new_domain;
|
|
}
|
|
|
|
#ifdef _LIBC
|
|
/* Alias for function name in GNU C Library. */
|
|
weak_alias (__textdomain, textdomain);
|
|
#endif
|