lib/libc/locale/lmonetary.c

   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 #include <stddef.h>
  37 #include <stdlib.h>
  38
  39 #include "ldpart.h"
  40 #include "lmonetary.h"
  41
  42 extern const char * __fix_locale_grouping_str(const char *);
  43
  44 #define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
  45 #define LCMONETARY_SIZE_MIN \
  46                 (offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
  47                     sizeof(char *))
  48
  49 static char     empty[] = "";
  50 static char     numempty[] = { CHAR_MAX, '\0'};
  51
  52 static const struct lc_monetary_T _C_monetary_locale = {
  53         empty,          /* int_curr_symbol */
  54         empty,          /* currency_symbol */
  55         empty,          /* mon_decimal_point */
  56         empty,          /* mon_thousands_sep */
  57         numempty,       /* mon_grouping */
  58         empty,          /* positive_sign */
  59         empty,          /* negative_sign */
  60         numempty,       /* int_frac_digits */
  61         numempty,       /* frac_digits */
  62         numempty,       /* p_cs_precedes */
  63         numempty,       /* p_sep_by_space */
  64         numempty,       /* n_cs_precedes */
  65         numempty,       /* n_sep_by_space */
  66         numempty,       /* p_sign_posn */
  67         numempty,       /* n_sign_posn */
  68         numempty,       /* int_p_cs_precedes */
  69         numempty,       /* int_n_cs_precedes */
  70         numempty,       /* int_p_sep_by_space */
  71         numempty,       /* int_n_sep_by_space */
  72         numempty,       /* int_p_sign_posn */
  73         numempty        /* int_n_sign_posn */
  74 };
  75
  76 struct xlocale_monetary __xlocale_global_monetary;
  77
  78 static char
  79 cnv(const char *str)
  80 {
  81         int i = strtol(str, NULL, 10);
  82
  83         if (i == -1)
  84                 i = CHAR_MAX;
  85         return ((char)i);
  86 }
  87
  88 static void
  89 destruct_monetary(void *v)
  90 {
  91         struct xlocale_monetary *l = v;
  92         if (l->buffer)
  93                 free(l->buffer);
  94         free(l);
  95 }
  96
  97 static int
  98 monetary_load_locale_l(struct xlocale_monetary *loc, int *using_locale,
  99     int *changed, const char *name)
 100 {
 101         int ret;
 102         struct lc_monetary_T *l = &loc->locale;
 103
 104         ret = __part_load_locale(name, using_locale,
 105             &loc->buffer, "LC_MONETARY",
 106             LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
 107             (const char **)l);
 108         if (ret == _LDP_LOADED) {
 109                 l->mon_grouping =
 110                      __fix_locale_grouping_str(l->mon_grouping);
 111
 112 #define M_ASSIGN_CHAR(NAME) (((char *)l->NAME)[0] = \
 113                              cnv(l->NAME))
 114
 115                 M_ASSIGN_CHAR(int_frac_digits);
 116                 M_ASSIGN_CHAR(frac_digits);
 117                 M_ASSIGN_CHAR(p_cs_precedes);
 118                 M_ASSIGN_CHAR(p_sep_by_space);
 119                 M_ASSIGN_CHAR(n_cs_precedes);
 120                 M_ASSIGN_CHAR(n_sep_by_space);
 121                 M_ASSIGN_CHAR(p_sign_posn);
 122                 M_ASSIGN_CHAR(n_sign_posn);
 123
 124                 /*
 125                  * The six additional C99 international monetary formatting
 126                  * parameters default to the national parameters when
 127                  * reading FreeBSD LC_MONETARY data files.
 128                  */
 129 #define M_ASSIGN_ICHAR(NAME)                                            \
 130                 do {                                                    \
 131                         if (l->int_##NAME == NULL)      \
 132                                 l->int_##NAME =         \
 133                                     l->NAME;            \
 134                         else                                            \
 135                                 M_ASSIGN_CHAR(int_##NAME);              \
 136                 } while (0)
 137
 138                 M_ASSIGN_ICHAR(p_cs_precedes);
 139                 M_ASSIGN_ICHAR(n_cs_precedes);
 140                 M_ASSIGN_ICHAR(p_sep_by_space);
 141                 M_ASSIGN_ICHAR(n_sep_by_space);
 142                 M_ASSIGN_ICHAR(p_sign_posn);
 143                 M_ASSIGN_ICHAR(n_sign_posn);
 144         }
 145         if (ret != _LDP_ERROR)
 146                 atomic_store_rel_int(changed, 1);
 147         return (ret);
 148 }
 149
 150 int
 151 __monetary_load_locale(const char *name)
 152 {
 153         return (monetary_load_locale_l(&__xlocale_global_monetary,
 154             &__xlocale_global_locale.using_monetary_locale,
 155             &__xlocale_global_locale.monetary_locale_changed, name));
 156 }
 157
 158 void *
 159 __monetary_load(const char *name, locale_t l)
 160 {
 161         struct xlocale_monetary *new = calloc(sizeof(struct xlocale_monetary),
 162             1);
 163         if (new == NULL)
 164                 return (NULL);
 165         new->header.header.destructor = destruct_monetary;
 166         if (monetary_load_locale_l(new, &l->using_monetary_locale,
 167             &l->monetary_locale_changed, name) == _LDP_ERROR) {
 168                 xlocale_release(new);
 169                 return (NULL);
 170         }
 171         return (new);
 172 }
 173
 174 struct lc_monetary_T *
 175 __get_current_monetary_locale(locale_t loc)
 176 {
 177         return (loc->using_monetary_locale ?
 178             &((struct xlocale_monetary*)loc->components[XLC_MONETARY])->locale :
 179             (struct lc_monetary_T *)&_C_monetary_locale);
 180 }
 181
 182 #ifdef LOCALE_DEBUG
 183 void
 184 monetdebug(void) {
 185 printf( "int_curr_symbol = %s\n"
 186         "currency_symbol = %s\n"
 187         "mon_decimal_point = %s\n"
 188         "mon_thousands_sep = %s\n"
 189         "mon_grouping = %s\n"
 190         "positive_sign = %s\n"
 191         "negative_sign = %s\n"
 192         "int_frac_digits = %d\n"
 193         "frac_digits = %d\n"
 194         "p_cs_precedes = %d\n"
 195         "p_sep_by_space = %d\n"
 196         "n_cs_precedes = %d\n"
 197         "n_sep_by_space = %d\n"
 198         "p_sign_posn = %d\n"
 199         "n_sign_posn = %d\n"
 200         "int_p_cs_precedes = %d\n"
 201         "int_p_sep_by_space = %d\n"
 202         "int_n_cs_precedes = %d\n"
 203         "int_n_sep_by_space = %d\n"
 204         "int_p_sign_posn = %d\n"
 205         "int_n_sign_posn = %d\n",
 206         _monetary_locale.int_curr_symbol,
 207         _monetary_locale.currency_symbol,
 208         _monetary_locale.mon_decimal_point,
 209         _monetary_locale.mon_thousands_sep,
 210         _monetary_locale.mon_grouping,
 211         _monetary_locale.positive_sign,
 212         _monetary_locale.negative_sign,
 213         _monetary_locale.int_frac_digits[0],
 214         _monetary_locale.frac_digits[0],
 215         _monetary_locale.p_cs_precedes[0],
 216         _monetary_locale.p_sep_by_space[0],
 217         _monetary_locale.n_cs_precedes[0],
 218         _monetary_locale.n_sep_by_space[0],
 219         _monetary_locale.p_sign_posn[0],
 220         _monetary_locale.n_sign_posn[0],
 221         _monetary_locale.int_p_cs_precedes[0],
 222         _monetary_locale.int_p_sep_by_space[0],
 223         _monetary_locale.int_n_cs_precedes[0],
 224         _monetary_locale.int_n_sep_by_space[0],
 225         _monetary_locale.int_p_sign_posn[0],
 226         _monetary_locale.int_n_sign_posn[0]
 227 );
 228 }
 229 #endif /* LOCALE_DEBUG */