1 /* $NetBSD: textdomain.c,v 1.14 2015/05/29 12:26:28 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2000, 2001 Citrus Project,
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __RCSID("$NetBSD: textdomain.c,v 1.14 2015/05/29 12:26:28 christos Exp $");
31
32 #include <sys/param.h>
33
34 #include <stdio.h>
35 #include <string.h>
36 #include <stdlib.h>
37 #include <libintl.h>
38 #include "libintl_local.h"
39 #include "pathnames.h"
40
41 static struct domainbinding __default_binding = {
42 .path = { _PATH_TEXTDOMAIN },
43 .domainname = { DEFAULT_DOMAINNAME },
44 };
45 struct domainbinding *__bindings = &__default_binding;
46 char __current_domainname[PATH_MAX] = DEFAULT_DOMAINNAME;
47
48 static struct domainbinding *domainbinding_lookup(const char *, int);
49
50 /*
51 * set the default domainname for dcngettext() and friends.
52 */
53 char *
textdomain(const char * domainname)54 textdomain(const char *domainname)
55 {
56
57 /* NULL pointer gives the current setting */
58 if (!domainname)
59 return __current_domainname;
60
61 /* empty string sets the value back to the default */
62 if (!*domainname) {
63 strlcpy(__current_domainname, DEFAULT_DOMAINNAME,
64 sizeof(__current_domainname));
65 } else {
66 strlcpy(__current_domainname, domainname,
67 sizeof(__current_domainname));
68 }
69 return __current_domainname;
70 }
71
72 char *
bindtextdomain(const char * domainname,const char * dirname)73 bindtextdomain(const char *domainname, const char *dirname)
74 {
75 struct domainbinding *p;
76
77 /* NULL pointer or empty string returns NULL with no operation */
78 if (!domainname || !*domainname)
79 return NULL;
80
81 if (dirname && (strlen(dirname) + 1 > sizeof(p->path)))
82 return NULL;
83
84 #if 0
85 /* disallow relative path */
86 if (dirname[0] != '/')
87 return NULL;
88 #endif
89
90 if (strlen(domainname) + 1 > sizeof(p->domainname))
91 return NULL;
92
93 p = domainbinding_lookup(domainname, (dirname != NULL));
94
95 if (!dirname) {
96 if (p)
97 return (p->path);
98 else
99 return (char *)__UNCONST(_PATH_TEXTDOMAIN);
100 }
101
102 strlcpy(p->path, dirname, sizeof(p->path));
103 p->mohandle.mo.mo_magic = 0; /* invalidate current mapping */
104
105 return (p->path);
106 }
107
108 char *
bind_textdomain_codeset(const char * domainname,const char * codeset)109 bind_textdomain_codeset(const char *domainname, const char *codeset)
110 {
111 struct domainbinding *p;
112
113 p = domainbinding_lookup(domainname, (codeset != NULL));
114 if (p == NULL)
115 return NULL;
116
117 if (codeset) {
118 free(p->codeset);
119 p->codeset = strdup(codeset);
120 }
121
122 return p->codeset;
123 }
124
125 /*
126 * lookup binding for the domainname
127 */
128 static struct domainbinding *
domainbinding_lookup(const char * domainname,int alloc)129 domainbinding_lookup(const char *domainname, int alloc)
130 {
131 struct domainbinding *p;
132
133 for (p = __bindings; p; p = p->next)
134 if (strcmp(p->domainname, domainname) == 0)
135 break;
136
137 if (!p && alloc) {
138 p = (struct domainbinding *)malloc(sizeof(*p));
139 if (!p)
140 return NULL;
141 memset(p, 0, sizeof(*p));
142 p->next = __bindings;
143 strlcpy(p->domainname, domainname, sizeof(p->domainname));
144 __bindings = p;
145 }
146
147 return p;
148 }
149