NetBSD/lib/libintl/textdomain.c

150 lines
3.9 KiB
C

/* $NetBSD: textdomain.c,v 1.13 2012/03/21 10:10:36 matt Exp $ */
/*-
* Copyright (c) 2000, 2001 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: textdomain.c,v 1.13 2012/03/21 10:10:36 matt Exp $");
#include <sys/param.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <libintl.h>
#include "libintl_local.h"
#include "pathnames.h"
static struct domainbinding __default_binding = {
.path = { _PATH_TEXTDOMAIN },
.domainname = { DEFAULT_DOMAINNAME },
};
struct domainbinding *__bindings = &__default_binding;
char __current_domainname[PATH_MAX] = DEFAULT_DOMAINNAME;
static struct domainbinding *domainbinding_lookup(const char *, int);
/*
* set the default domainname for dcngettext() and friends.
*/
char *
textdomain(const char *domainname)
{
/* NULL pointer gives the current setting */
if (!domainname)
return __current_domainname;
/* empty string sets the value back to the default */
if (!*domainname) {
strlcpy(__current_domainname, DEFAULT_DOMAINNAME,
sizeof(__current_domainname));
} else {
strlcpy(__current_domainname, domainname,
sizeof(__current_domainname));
}
return __current_domainname;
}
char *
bindtextdomain(const char *domainname, const char *dirname)
{
struct domainbinding *p;
/* NULL pointer or empty string returns NULL with no operation */
if (!domainname || !*domainname)
return NULL;
if (dirname && (strlen(dirname) + 1 > sizeof(p->path)))
return NULL;
#if 0
/* disallow relative path */
if (dirname[0] != '/')
return NULL;
#endif
if (strlen(domainname) + 1 > sizeof(p->domainname))
return NULL;
p = domainbinding_lookup(domainname, (dirname != NULL));
if (!dirname) {
if (p)
return (p->path);
else
return (char *)__UNCONST(_PATH_TEXTDOMAIN);
}
strlcpy(p->path, dirname, sizeof(p->path));
p->mohandle.mo.mo_magic = 0; /* invalidate current mapping */
return (p->path);
}
char *
bind_textdomain_codeset(const char *domainname, const char *codeset)
{
struct domainbinding *p;
p = domainbinding_lookup(domainname, (codeset != NULL));
if (p == NULL)
return NULL;
if (codeset) {
if (p->codeset)
free(p->codeset);
p->codeset = strdup(codeset);
}
return p->codeset;
}
/*
* lookup binding for the domainname
*/
static struct domainbinding *
domainbinding_lookup(const char *domainname, int alloc)
{
struct domainbinding *p;
for (p = __bindings; p; p = p->next)
if (strcmp(p->domainname, domainname) == 0)
break;
if (!p && alloc) {
p = (struct domainbinding *)malloc(sizeof(*p));
if (!p)
return NULL;
memset(p, 0, sizeof(*p));
p->next = __bindings;
strlcpy(p->domainname, domainname, sizeof(p->domainname));
__bindings = p;
}
return p;
}