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textdomain.c revision 1.6 
      1 /*	$NetBSD: textdomain.c,v 1.6 2001/12/09 11:11:01 yamt 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 #if defined(LIBC_SCCS) && !defined(lint)
     31 __RCSID("$NetBSD: textdomain.c,v 1.6 2001/12/09 11:11:01 yamt Exp $");
     32 #endif /* LIBC_SCCS and not lint */
     33 
     34 #include <sys/types.h>
     35 #include <sys/param.h>
     36 
     37 #include <stdio.h>
     38 #include <string.h>
     39 #include <stdlib.h>
     40 #include <libintl.h>
     41 #include "libintl_local.h"
     42 #include "pathnames.h"
     43 
     44 static struct domainbinding __default_binding = {
     45 	NULL, DEFAULT_DOMAINNAME, _PATH_TEXTDOMAIN,
     46 };
     47 struct domainbinding *__bindings = &__default_binding;
     48 char __current_domainname[PATH_MAX] = DEFAULT_DOMAINNAME;
     49 
     50 /*
     51  * set the default domainname for dcngettext() and friends.
     52  */
     53 char *
     54 textdomain(domainname)
     55 	const char *domainname;
     56 {
     57 
     58 	/* NULL pointer gives the current setting */
     59 	if (!domainname)
     60 		return __current_domainname;
     61 
     62 	/* empty string sets the value back to the default */
     63 	if (!*domainname) {
     64 		strlcpy(__current_domainname, DEFAULT_DOMAINNAME,
     65 		    sizeof(__current_domainname));
     66 	} else {
     67 		strlcpy(__current_domainname, domainname,
     68 		    sizeof(__current_domainname));
     69 	}
     70 	return __current_domainname;
     71 }
     72 
     73 char *
     74 bindtextdomain(domainname, dirname)
     75 	const char *domainname;
     76 	const char *dirname;
     77 {
     78 	struct domainbinding *p;
     79 
     80 	/* NULL pointer or empty string returns NULL with no operation */
     81 	if (!domainname || !*domainname)
     82 		return NULL;
     83 
     84 	if (strlen(dirname) + 1 > sizeof(p->path))
     85 		return NULL;
     86 
     87 #if 0
     88 	/* disallow relative path */
     89 	if (dirname[0] != '/')
     90 		return NULL;
     91 #endif
     92 
     93 	if (strlen(domainname) + 1 > sizeof(p->domainname))
     94 		return NULL;
     95 
     96 	/* lookup binding for the domainname */
     97 	for (p = __bindings; p; p = p->next)
     98 		if (strcmp(p->domainname, domainname) == 0)
     99 			break;
    100 	if (!p) {
    101 		p = (struct domainbinding *)malloc(sizeof(*p));
    102 		if (!p)
    103 			return NULL;
    104 		memset(p, 0, sizeof(*p));
    105 		p->next = __bindings;
    106 		__bindings = p;
    107 	}
    108 
    109 	strlcpy(p->path, dirname, sizeof(p->path));
    110 	strlcpy(p->domainname, domainname, sizeof(p->domainname));
    111 	p->mohandle.mo.mo_magic = 0; /* invalidate current mapping */
    112 
    113 	/* LINTED const cast */
    114 	return (char *)domainname;
    115 }
    116 
    117 /* ARGSUSED */
    118 char *
    119 bind_textdomain_codeset(domainname, codeset)
    120 	const char *domainname;
    121 	const char *codeset;
    122 {
    123 
    124 	/* yet to be done - always fail */
    125 	return NULL;
    126 }
    127