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 * 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 * 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 * 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 * 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