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 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 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 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 * 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 * 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 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