1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Copyright (c) 2011 The FreeBSD Foundation
8 *
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 <limits.h>
35
36 #include "ldpart.h"
37 #include "lnumeric.h"
38
39 extern const char *__fix_locale_grouping_str(const char *);
40
41 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
42
43 static char numempty[] = { CHAR_MAX, '\0' };
44
45 static const struct lc_numeric_T _C_numeric_locale = {
46 ".", /* decimal_point */
47 "", /* thousands_sep */
48 numempty /* grouping */
49 };
50
51 static void
destruct_numeric(void * v)52 destruct_numeric(void *v)
53 {
54 struct xlocale_numeric *l = v;
55 if (l->buffer)
56 free(l->buffer);
57 free(l);
58 }
59
60 struct xlocale_numeric __xlocale_global_numeric;
61
62 static int
numeric_load_locale(struct xlocale_numeric * loc,int * using_locale,int * changed,const char * name)63 numeric_load_locale(struct xlocale_numeric *loc, int *using_locale,
64 int *changed, const char *name)
65 {
66 int ret;
67 struct lc_numeric_T *l = &loc->locale;
68
69 ret = __part_load_locale(name, using_locale,
70 &loc->buffer, "LC_NUMERIC",
71 LCNUMERIC_SIZE, LCNUMERIC_SIZE,
72 (const char**)l);
73 if (ret == _LDP_LOADED) {
74 /* Can't be empty according to C99 */
75 if (*l->decimal_point == '\0')
76 l->decimal_point =
77 _C_numeric_locale.decimal_point;
78 l->grouping =
79 __fix_locale_grouping_str(l->grouping);
80 }
81 if (ret != _LDP_ERROR)
82 atomic_store_rel_int(changed, 1);
83 return (ret);
84 }
85
86 int
__numeric_load_locale(const char * name)87 __numeric_load_locale(const char *name)
88 {
89 return (numeric_load_locale(&__xlocale_global_numeric,
90 &__xlocale_global_locale.using_numeric_locale,
91 &__xlocale_global_locale.numeric_locale_changed, name));
92 }
93
94 void *
__numeric_load(const char * name,locale_t l)95 __numeric_load(const char *name, locale_t l)
96 {
97 struct xlocale_numeric *new = calloc(sizeof(struct xlocale_numeric),
98 1);
99 if (new == NULL)
100 return (NULL);
101 new->header.header.destructor = destruct_numeric;
102 if (numeric_load_locale(new, &l->using_numeric_locale,
103 &l->numeric_locale_changed, name) == _LDP_ERROR) {
104 xlocale_release(new);
105 return (NULL);
106 }
107 return (new);
108 }
109
110 struct lc_numeric_T *
__get_current_numeric_locale(locale_t loc)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
119 void
numericdebug(void)120 numericdebug(void) {
121 printf( "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