1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Copyright (c) 2011 The FreeBSD Foundation
8 * All rights reserved.
9 * Portions of this software were developed by David Chisnall
10 * under sponsorship from the FreeBSD Foundation.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD$");
36
37#include <limits.h>
38
39#include "ldpart.h"
40#include "lnumeric.h"
41
42extern const char *__fix_locale_grouping_str(const char *);
43
44#define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
45
46static char	numempty[] = { CHAR_MAX, '\0' };
47
48static const struct lc_numeric_T _C_numeric_locale = {
49	".",     	/* decimal_point */
50	"",     	/* thousands_sep */
51	numempty	/* grouping */
52};
53
54static void
55destruct_numeric(void *v)
56{
57	struct xlocale_numeric *l = v;
58	if (l->buffer)
59		free(l->buffer);
60	free(l);
61}
62
63struct xlocale_numeric __xlocale_global_numeric;
64
65static int
66numeric_load_locale(struct xlocale_numeric *loc, int *using_locale, int *changed,
67		const char *name)
68{
69	int ret;
70	struct lc_numeric_T *l = &loc->locale;
71
72	ret = __part_load_locale(name, using_locale,
73		&loc->buffer, "LC_NUMERIC",
74		LCNUMERIC_SIZE, LCNUMERIC_SIZE,
75		(const char**)l);
76	if (ret != _LDP_ERROR)
77		*changed= 1;
78	if (ret == _LDP_LOADED) {
79		/* Can't be empty according to C99 */
80		if (*l->decimal_point == '\0')
81			l->decimal_point =
82			    _C_numeric_locale.decimal_point;
83		l->grouping =
84		    __fix_locale_grouping_str(l->grouping);
85	}
86	return (ret);
87}
88
89int
90__numeric_load_locale(const char *name)
91{
92	return numeric_load_locale(&__xlocale_global_numeric,
93			&__xlocale_global_locale.using_numeric_locale,
94			&__xlocale_global_locale.numeric_locale_changed, name);
95}
96void *
97__numeric_load(const char *name, locale_t l)
98{
99	struct xlocale_numeric *new = calloc(sizeof(struct xlocale_numeric), 1);
100	new->header.header.destructor = destruct_numeric;
101	if (numeric_load_locale(new, &l->using_numeric_locale,
102				&l->numeric_locale_changed, name) == _LDP_ERROR)
103	{
104		xlocale_release(new);
105		return NULL;
106	}
107	return new;
108}
109
110struct lc_numeric_T *
111__get_current_numeric_locale(locale_t loc)
112{
113	return (loc->using_numeric_locale
114		? &((struct xlocale_numeric *)loc->components[XLC_NUMERIC])->locale
115		: (struct lc_numeric_T *)&_C_numeric_locale);
116}
117
118#ifdef LOCALE_DEBUG
119void
120numericdebug(void) {
121printf(	"decimal_point = %s\n"
122	"thousands_sep = %s\n"
123	"grouping = %s\n",
124	_numeric_locale.decimal_point,
125	_numeric_locale.thousands_sep,
126	_numeric_locale.grouping
127);
128}
129#endif /* LOCALE_DEBUG */
130