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/* Implementation of the bindtextdomain(3) function
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Copyright (C) 1995-1998, 2000, 2001 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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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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# include "libgnuintl.h"
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/* We have to handle multi-threaded applications. */
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# include <bits/libc-lock.h>
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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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/* 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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# define _nl_default_dirname _nl_default_dirname__
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# define _nl_domain_bindings _nl_domain_bindings__
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/* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */
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# define offsetof(type,ident) ((size_t)&(((type*)0)->ident))
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/* @@ end of prolog @@ */
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/* Contains the default location of the message catalogs. */
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extern const char _nl_default_dirname[];
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/* List with bindings of specific domains. */
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extern struct binding *_nl_domain_bindings;
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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)
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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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# define BINDTEXTDOMAIN __bindtextdomain
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# define BIND_TEXTDOMAIN_CODESET __bind_textdomain_codeset
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# define strdup(str) __strdup (str)
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# define BINDTEXTDOMAIN bindtextdomain__
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# define BIND_TEXTDOMAIN_CODESET bind_textdomain_codeset__
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/* Prototypes for local functions. */
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static void set_binding_values PARAMS ((const char *domainname,
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const char **dirnamep,
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const char **codesetp));
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/* Specifies the directory name *DIRNAMEP and the output codeset *CODESETP
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to be used for the DOMAINNAME message catalog.
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If *DIRNAMEP or *CODESETP is NULL, the corresponding attribute is not
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modified, only the current value is returned.
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If DIRNAMEP or CODESETP is NULL, the corresponding attribute is neither
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modified nor returned. */
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set_binding_values (domainname, dirnamep, codesetp)
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const char *domainname;
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const char **dirnamep;
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const char **codesetp;
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struct binding *binding;
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/* Some sanity checks. */
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if (domainname == NULL || domainname[0] == '\0')
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__libc_rwlock_wrlock (_nl_state_lock);
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for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
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int compare = strcmp (domainname, binding->domainname);
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/* It is not in the list. */
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const char *dirname = *dirnamep;
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/* The current binding has be to returned. */
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*dirnamep = binding->dirname;
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/* The domain is already bound. If the new value and the old
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one are equal we simply do nothing. Otherwise replace the
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char *result = binding->dirname;
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if (strcmp (dirname, result) != 0)
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if (strcmp (dirname, _nl_default_dirname) == 0)
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result = (char *) _nl_default_dirname;
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#if defined _LIBC || defined HAVE_STRDUP
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result = strdup (dirname);
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size_t len = strlen (dirname) + 1;
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result = (char *) malloc (len);
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if (__builtin_expect (result != NULL, 1))
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memcpy (result, dirname, len);
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if (__builtin_expect (result != NULL, 1))
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if (binding->dirname != _nl_default_dirname)
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free (binding->dirname);
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binding->dirname = result;
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const char *codeset = *codesetp;
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/* The current binding has be to returned. */
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*codesetp = binding->codeset;
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/* The domain is already bound. If the new value and the old
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one are equal we simply do nothing. Otherwise replace the
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char *result = binding->codeset;
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if (result == NULL || strcmp (codeset, result) != 0)
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#if defined _LIBC || defined HAVE_STRDUP
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result = strdup (codeset);
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size_t len = strlen (codeset) + 1;
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result = (char *) malloc (len);
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if (__builtin_expect (result != NULL, 1))
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memcpy (result, codeset, len);
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if (__builtin_expect (result != NULL, 1))
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if (binding->codeset != NULL)
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free (binding->codeset);
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binding->codeset = result;
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binding->codeset_cntr++;
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else if ((dirnamep == NULL || *dirnamep == NULL)
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&& (codesetp == NULL || *codesetp == NULL))
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/* Simply return the default values. */
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*dirnamep = _nl_default_dirname;
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/* We have to create a new binding. */
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size_t len = strlen (domainname) + 1;
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struct binding *new_binding =
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(struct binding *) malloc (offsetof (struct binding, domainname) + len);
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if (__builtin_expect (new_binding == NULL, 0))
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memcpy (new_binding->domainname, domainname, len);
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const char *dirname = *dirnamep;
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/* The default value. */
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dirname = _nl_default_dirname;
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if (strcmp (dirname, _nl_default_dirname) == 0)
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dirname = _nl_default_dirname;
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#if defined _LIBC || defined HAVE_STRDUP
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result = strdup (dirname);
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if (__builtin_expect (result == NULL, 0))
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size_t len = strlen (dirname) + 1;
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result = (char *) malloc (len);
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if (__builtin_expect (result == NULL, 0))
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memcpy (result, dirname, len);
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new_binding->dirname = (char *) dirname;
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/* The default value. */
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new_binding->dirname = (char *) _nl_default_dirname;
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new_binding->codeset_cntr = 0;
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const char *codeset = *codesetp;
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#if defined _LIBC || defined HAVE_STRDUP
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result = strdup (codeset);
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if (__builtin_expect (result == NULL, 0))
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size_t len = strlen (codeset) + 1;
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result = (char *) malloc (len);
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if (__builtin_expect (result == NULL, 0))
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memcpy (result, codeset, len);
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new_binding->codeset_cntr++;
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new_binding->codeset = (char *) codeset;
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new_binding->codeset = NULL;
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/* Now enqueue it. */
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if (_nl_domain_bindings == NULL
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|| strcmp (domainname, _nl_domain_bindings->domainname) < 0)
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new_binding->next = _nl_domain_bindings;
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_nl_domain_bindings = new_binding;
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binding = _nl_domain_bindings;
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while (binding->next != NULL
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&& strcmp (domainname, binding->next->domainname) > 0)
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binding = binding->next;
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new_binding->next = binding->next;
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binding->next = new_binding;
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/* Here we deal with memory allocation failures. */
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if (new_binding->dirname != _nl_default_dirname)
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free (new_binding->dirname);
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/* If we modified any binding, we flush the caches. */
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__libc_rwlock_unlock (_nl_state_lock);
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/* Specify that the DOMAINNAME message catalog will be found
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in DIRNAME rather than in the system locale data base. */
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BINDTEXTDOMAIN (domainname, dirname)
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const char *domainname;
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set_binding_values (domainname, &dirname, NULL);
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return (char *) dirname;
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/* Specify the character encoding in which the messages from the
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DOMAINNAME message catalog will be returned. */
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BIND_TEXTDOMAIN_CODESET (domainname, codeset)
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const char *domainname;
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set_binding_values (domainname, NULL, &codeset);
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return (char *) codeset;
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/* Aliases for function names in GNU C Library. */
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weak_alias (__bindtextdomain, bindtextdomain);
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weak_alias (__bind_textdomain_codeset, bind_textdomain_codeset);
added
removed
intl/bindtextdom.c
