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textdomain.c revision 1.7 
      1 /*	$NetBSD: textdomain.c,v 1.7 2003/03/09 01:02:35 lukem 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 1.7 2003/03/09 01:02:35 lukem Exp $");
     31 
     32 #include <sys/types.h>
     33 #include <sys/param.h>
     34 
     35 #include <stdio.h>
     36 #include <string.h>
     37 #include <stdlib.h>
     38 #include <libintl.h>
     39 #include "libintl_local.h"
     40 #include "pathnames.h"
     41 
     42 static struct domainbinding __default_binding = {
     43 	NULL, DEFAULT_DOMAINNAME, _PATH_TEXTDOMAIN,
     44 };
     45 struct domainbinding *__bindings = &__default_binding;
     46 char __current_domainname[PATH_MAX] = DEFAULT_DOMAINNAME;
     47 
     48 /*
     49  * set the default domainname for dcngettext() and friends.
     50  */
     51 char *
     52 textdomain(domainname)
     53 	const char *domainname;
     54 {
     55 
     56 	/* NULL pointer gives the current setting */
     57 	if (!domainname)
     58 		return __current_domainname;
     59 
     60 	/* empty string sets the value back to the default */
     61 	if (!*domainname) {
     62 		strlcpy(__current_domainname, DEFAULT_DOMAINNAME,
     63 		    sizeof(__current_domainname));
     64 	} else {
     65 		strlcpy(__current_domainname, domainname,
     66 		    sizeof(__current_domainname));
     67 	}
     68 	return __current_domainname;
     69 }
     70 
     71 char *
     72 bindtextdomain(domainname, dirname)
     73 	const char *domainname;
     74 	const char *dirname;
     75 {
     76 	struct domainbinding *p;
     77 
     78 	/* NULL pointer or empty string returns NULL with no operation */
     79 	if (!domainname || !*domainname)
     80 		return NULL;
     81 
     82 	if (strlen(dirname) + 1 > sizeof(p->path))
     83 		return NULL;
     84 
     85 #if 0
     86 	/* disallow relative path */
     87 	if (dirname[0] != '/')
     88 		return NULL;
     89 #endif
     90 
     91 	if (strlen(domainname) + 1 > sizeof(p->domainname))
     92 		return NULL;
     93 
     94 	/* lookup binding for the domainname */
     95 	for (p = __bindings; p; p = p->next)
     96 		if (strcmp(p->domainname, domainname) == 0)
     97 			break;
     98 	if (!p) {
     99 		p = (struct domainbinding *)malloc(sizeof(*p));
    100 		if (!p)
    101 			return NULL;
    102 		memset(p, 0, sizeof(*p));
    103 		p->next = __bindings;
    104 		__bindings = p;
    105 	}
    106 
    107 	strlcpy(p->path, dirname, sizeof(p->path));
    108 	strlcpy(p->domainname, domainname, sizeof(p->domainname));
    109 	p->mohandle.mo.mo_magic = 0; /* invalidate current mapping */
    110 
    111 	/* LINTED const cast */
    112 	return (char *)domainname;
    113 }
    114 
    115 /* ARGSUSED */
    116 char *
    117 bind_textdomain_codeset(domainname, codeset)
    118 	const char *domainname;
    119 	const char *codeset;
    120 {
    121 
    122 	/* yet to be done - always fail */
    123 	return NULL;
    124 }
    125