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 <sys/cdefs.h> 35 #include <limits.h> 36 37 #include "ldpart.h" 38 #include "lnumeric.h" 39 40 extern const char *__fix_locale_grouping_str(const char *); 41 42 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *)) 43 44 static char numempty[] = { CHAR_MAX, '\0' }; 45 46 static const struct lc_numeric_T _C_numeric_locale = { 47 ".", /* decimal_point */ 48 "", /* thousands_sep */ 49 numempty /* grouping */ 50 }; 51 52 static void 53 destruct_numeric(void *v) 54 { 55 struct xlocale_numeric *l = v; 56 if (l->buffer) 57 free(l->buffer); 58 free(l); 59 } 60 61 struct xlocale_numeric __xlocale_global_numeric; 62 63 static int 64 numeric_load_locale(struct xlocale_numeric *loc, int *using_locale, 65 int *changed, const char *name) 66 { 67 int ret; 68 struct lc_numeric_T *l = &loc->locale; 69 70 ret = __part_load_locale(name, using_locale, 71 &loc->buffer, "LC_NUMERIC", 72 LCNUMERIC_SIZE, LCNUMERIC_SIZE, 73 (const char**)l); 74 if (ret == _LDP_LOADED) { 75 /* Can't be empty according to C99 */ 76 if (*l->decimal_point == '\0') 77 l->decimal_point = 78 _C_numeric_locale.decimal_point; 79 l->grouping = 80 __fix_locale_grouping_str(l->grouping); 81 } 82 if (ret != _LDP_ERROR) 83 atomic_store_rel_int(changed, 1); 84 return (ret); 85 } 86 87 int 88 __numeric_load_locale(const char *name) 89 { 90 return (numeric_load_locale(&__xlocale_global_numeric, 91 &__xlocale_global_locale.using_numeric_locale, 92 &__xlocale_global_locale.numeric_locale_changed, name)); 93 } 94 95 void * 96 __numeric_load(const char *name, locale_t l) 97 { 98 struct xlocale_numeric *new = calloc(sizeof(struct xlocale_numeric), 99 1); 100 if (new == NULL) 101 return (NULL); 102 new->header.header.destructor = destruct_numeric; 103 if (numeric_load_locale(new, &l->using_numeric_locale, 104 &l->numeric_locale_changed, name) == _LDP_ERROR) { 105 xlocale_release(new); 106 return (NULL); 107 } 108 return (new); 109 } 110 111 struct lc_numeric_T * 112 __get_current_numeric_locale(locale_t loc) 113 { 114 return (loc->using_numeric_locale ? 115 &((struct xlocale_numeric *)loc->components[XLC_NUMERIC])->locale : 116 (struct lc_numeric_T *)&_C_numeric_locale); 117 } 118 119 #ifdef LOCALE_DEBUG 120 void 121 numericdebug(void) { 122 printf( "decimal_point = %s\n" 123 "thousands_sep = %s\n" 124 "grouping = %s\n", 125 _numeric_locale.decimal_point, 126 _numeric_locale.thousands_sep, 127 _numeric_locale.grouping 128 ); 129 } 130 #endif /* LOCALE_DEBUG */ 131