1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2000, 2001 Alexey Zelkin <[email protected]>
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
42 extern const char *__fix_locale_grouping_str(const char *);
43
44 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
45
46 static char numempty[] = { CHAR_MAX, '\0' };
47
48 static const struct lc_numeric_T _C_numeric_locale = {
49 ".", /* decimal_point */
50 "", /* thousands_sep */
51 numempty /* grouping */
52 };
53
54 static void
destruct_numeric(void * v)55 destruct_numeric(void *v)
56 {
57 struct xlocale_numeric *l = v;
58 if (l->buffer)
59 free(l->buffer);
60 free(l);
61 }
62
63 struct xlocale_numeric __xlocale_global_numeric;
64
65 static int
numeric_load_locale(struct xlocale_numeric * loc,int * using_locale,int * changed,const char * name)66 numeric_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
89 int
__numeric_load_locale(const char * name)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 }
96 void *
__numeric_load(const char * name,locale_t l)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
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