1 /* bindtextdom.c -- implementation of the bindtextdomain(3) function
2 Copyright (C) 1995, 1997 Free Software Foundation, Inc.
4 This file is part of the GNU C Library. Its master source is NOT part of
5 the C library, however. The master source lives in /gd/gnu/lib.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with the GNU C Library; see the file COPYING.LIB. If not,
19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
26 #if defined STDC_HEADERS || defined _LIBC
36 #if defined HAVE_STRING_H || defined _LIBC
45 # include "libgettext.h"
50 /* @@ end of prolog @@ */
52 /* Contains the default location of the message catalogs. */
53 extern const char _nl_default_dirname[];
55 /* List with bindings of specific domains. */
56 extern struct binding *_nl_domain_bindings;
59 /* Names for the libintl functions are a problem. They must not clash
60 with existing names and they should follow ANSI C. But this source
61 code is also used in GNU C Library where the names have a __
62 prefix. So we have to make a difference here. */
64 # define BINDTEXTDOMAIN __bindtextdomain
66 # define BINDTEXTDOMAIN bindtextdomain__
69 /* Specify that the DOMAINNAME message catalog will be found
70 in DIRNAME rather than in the system locale data base. */
72 BINDTEXTDOMAIN (domainname, dirname)
73 const char *domainname;
76 struct binding *binding;
78 /* Some sanity checks. */
79 if (domainname == NULL || domainname[0] == '\0')
82 for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
84 int compare = strcmp (domainname, binding->domainname);
90 /* It is not in the list. */
97 /* The current binding has be to returned. */
98 return binding == NULL ? (char *) _nl_default_dirname : binding->dirname;
102 /* The domain is already bound. Replace the old binding. */
105 if (strcmp (dirname, _nl_default_dirname) == 0)
106 new_dirname = (char *) _nl_default_dirname;
109 size_t len = strlen (dirname) + 1;
110 new_dirname = (char *) malloc (len);
111 if (new_dirname == NULL)
114 memcpy (new_dirname, dirname, len);
117 if (strcmp (binding->dirname, _nl_default_dirname) != 0)
118 free (binding->dirname);
120 binding->dirname = new_dirname;
124 /* We have to create a new binding. */
126 struct binding *new_binding =
127 (struct binding *) malloc (sizeof (*new_binding));
129 if (new_binding == NULL)
132 len = strlen (domainname) + 1;
133 new_binding->domainname = (char *) malloc (len);
134 if (new_binding->domainname == NULL)
136 memcpy (new_binding->domainname, domainname, len);
138 if (strcmp (dirname, _nl_default_dirname) == 0)
139 new_binding->dirname = (char *) _nl_default_dirname;
142 len = strlen (dirname) + 1;
143 new_binding->dirname = (char *) malloc (len);
144 if (new_binding->dirname == NULL)
146 memcpy (new_binding->dirname, dirname, len);
149 /* Now enqueue it. */
150 if (_nl_domain_bindings == NULL
151 || strcmp (domainname, _nl_domain_bindings->domainname) < 0)
153 new_binding->next = _nl_domain_bindings;
154 _nl_domain_bindings = new_binding;
158 binding = _nl_domain_bindings;
159 while (binding->next != NULL
160 && strcmp (domainname, binding->next->domainname) > 0)
161 binding = binding->next;
163 new_binding->next = binding->next;
164 binding->next = new_binding;
167 binding = new_binding;
170 return binding->dirname;
174 /* Alias for function name in GNU C Library. */
175 weak_alias (__bindtextdomain, bindtextdomain);