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Diffstat (limited to '')
| -rw-r--r-- | intl/textdomain.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/intl/textdomain.c b/intl/textdomain.c new file mode 100644 index 0000000..f259c69 --- /dev/null +++ b/intl/textdomain.c @@ -0,0 +1,142 @@ +/* Implementation of the textdomain(3) function. + Copyright (C) 1995-1998, 2000, 2001, 2002 Free Software Foundation, Inc. + + This program 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, 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> + +#ifdef _LIBC +# include <libintl.h> +#else +# include "libgnuintl.h" +#endif +#include "gettextP.h" + +#ifdef _LIBC +/* We have to handle multi-threaded applications. */ +# include <bits/libc-lock.h> +#else +/* Provide dummy implementation if this is outside glibc. */ +# define __libc_rwlock_define(CLASS, NAME) +# define __libc_rwlock_wrlock(NAME) +# define __libc_rwlock_unlock(NAME) +#endif + +/* The internal variables in the standalone libintl.a must have different + names than the internal variables in GNU libc, otherwise programs + using libintl.a cannot be linked statically. */ +#if !defined _LIBC +# define _nl_default_default_domain libintl_nl_default_default_domain +# define _nl_current_default_domain libintl_nl_current_default_domain +#endif + +/* @@ end of prolog @@ */ + +/* Name of the default text domain. */ +extern const char _nl_default_default_domain[] attribute_hidden; + +/* Default text domain in which entries for gettext(3) are to be found. */ +extern const char *_nl_current_default_domain 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 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. */ +__libc_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 (domainname) + 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; + + __libc_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); + } + + __libc_rwlock_unlock (_nl_state_lock); + + return new_domain; +} + +#ifdef _LIBC +/* Alias for function name in GNU C Library. */ +weak_alias (__textdomain, textdomain); +#endif |