1 /* $NetBSD: textdomain.c,v 1.11 2004/09/23 16:44:26 tshiozak 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 1.11 2004/09/23 16:44:26 tshiozak 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 NULL, DEFAULT_DOMAINNAME, _PATH_TEXTDOMAIN, 43 }; 44 struct domainbinding *__bindings = &__default_binding; 45 char __current_domainname[PATH_MAX] = DEFAULT_DOMAINNAME; 46 47 static struct domainbinding *domainbinding_lookup __P((const char *, int)); 48 49 /* 50 * set the default domainname for dcngettext() and friends. 51 */ 52 char * 53 textdomain(domainname) 54 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 * 73 bindtextdomain(domainname, dirname) 74 const char *domainname; 75 const char *dirname; 76 { 77 struct domainbinding *p; 78 79 /* NULL pointer or empty string returns NULL with no operation */ 80 if (!domainname || !*domainname) 81 return NULL; 82 83 if (dirname && (strlen(dirname) + 1 > sizeof(p->path))) 84 return NULL; 85 86 #if 0 87 /* disallow relative path */ 88 if (dirname[0] != '/') 89 return NULL; 90 #endif 91 92 if (strlen(domainname) + 1 > sizeof(p->domainname)) 93 return NULL; 94 95 p = domainbinding_lookup(domainname, (dirname != NULL)); 96 97 if (!dirname) { 98 if (p) 99 return (p->path); 100 else 101 return (char *)__UNCONST(_PATH_TEXTDOMAIN); 102 } 103 104 strlcpy(p->path, dirname, sizeof(p->path)); 105 p->mohandle.mo.mo_magic = 0; /* invalidate current mapping */ 106 107 return (p->path); 108 } 109 110 char * 111 bind_textdomain_codeset(domainname, codeset) 112 const char *domainname; 113 const char *codeset; 114 { 115 struct domainbinding *p; 116 117 p = domainbinding_lookup(domainname, (codeset != NULL)); 118 if (p == NULL) 119 return NULL; 120 121 if (codeset) { 122 if (p->codeset) 123 free(p->codeset); 124 p->codeset = strdup(codeset); 125 } 126 127 return p->codeset; 128 } 129 130 /* 131 * lookup binding for the domainname 132 */ 133 static struct domainbinding * 134 domainbinding_lookup(domainname, alloc) 135 const char *domainname; 136 int alloc; 137 { 138 struct domainbinding *p; 139 140 for (p = __bindings; p; p = p->next) 141 if (strcmp(p->domainname, domainname) == 0) 142 break; 143 144 if (!p && alloc) { 145 p = (struct domainbinding *)malloc(sizeof(*p)); 146 if (!p) 147 return NULL; 148 memset(p, 0, sizeof(*p)); 149 p->next = __bindings; 150 strlcpy(p->domainname, domainname, sizeof(p->domainname)); 151 __bindings = p; 152 } 153 154 return p; 155 } 156