usr/src/lib/libc/port/locale/lmonetary.c

   1 /*
   2  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
   3  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
   4  * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include "lint.h"
  30 #include <limits.h>
  31 #include <stddef.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35 #include <errno.h>
  36 #include "libc.h"
  37 #include "ldpart.h"
  38 #include "lmonetary.h"
  39 #include "localeimpl.h"
  40
  41 extern const char *__fix_locale_grouping_str(const char *);
  42
  43 #define LCMONETARY_SIZE_FULL (sizeof (struct lc_monetary) / sizeof (char *))
  44 #define LCMONETARY_SIZE_MIN \
  45         (offsetof(struct lc_monetary, int_p_cs_precedes) / sizeof (char *))
  46
  47 static char     empty[] = "";
  48 static char     numempty[] = { CHAR_MAX, '\0' };
  49
  50 struct lc_monetary lc_monetary_posix = {
  51         empty,          /* int_curr_symbol */
  52         empty,          /* currency_symbol */
  53         empty,          /* mon_decimal_point */
  54         empty,          /* mon_thousands_sep */
  55         numempty,       /* mon_grouping */
  56         empty,          /* positive_sign */
  57         empty,          /* negative_sign */
  58         numempty,       /* int_frac_digits */
  59         numempty,       /* frac_digits */
  60         numempty,       /* p_cs_precedes */
  61         numempty,       /* p_sep_by_space */
  62         numempty,       /* n_cs_precedes */
  63         numempty,       /* n_sep_by_space */
  64         numempty,       /* p_sign_posn */
  65         numempty,       /* n_sign_posn */
  66         numempty,       /* int_p_cs_precedes */
  67         numempty,       /* int_n_cs_precedes */
  68         numempty,       /* int_p_sep_by_space */
  69         numempty,       /* int_n_sep_by_space */
  70         numempty,       /* int_p_sign_posn */
  71         numempty,       /* int_n_sign_posn */
  72         empty           /* crncystr */
  73 };
  74
  75 struct locdata __posix_monetary_locdata = {
  76         .l_lname = "C",
  77         .l_data = { &lc_monetary_posix }
  78 };
  79
  80 static char
  81 cnv(const char *str)
  82 {
  83         int i = strtol(str, NULL, 10);
  84
  85         if (i == -1)
  86                 i = CHAR_MAX;
  87         return ((char)i);
  88 }
  89
  90 struct locdata *
  91 __lc_monetary_load(const char *name)
  92 {
  93         int ret;
  94         int clen;
  95         struct lc_monetary      *lmon;
  96         struct locdata          *ldata;
  97
  98         if ((ldata = __locdata_alloc(name, sizeof (*lmon))) == NULL) {
  99                 return (NULL);
 100         }
 101         lmon = ldata->l_data[0];
 102
 103         ret = __part_load_locale(name, (char **)&ldata->l_data[1],
 104             "LC_MONETARY", LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
 105             (const char **)lmon);
 106
 107         if (ret != _LDP_LOADED) {
 108                 __locdata_free(ldata);
 109                 errno = EINVAL;
 110                 return (NULL);
 111         }
 112
 113         /* special storage for currency string */
 114         clen = strlen(lmon->currency_symbol) + 2;
 115         ldata->l_data[2] = libc_malloc(clen);
 116         lmon->crncystr = ldata->l_data[2];
 117
 118         lmon->mon_grouping = __fix_locale_grouping_str(lmon->mon_grouping);
 119
 120 #define M_ASSIGN_CHAR(NAME) \
 121         (((char *)lmon->NAME)[0] = cnv(lmon->NAME))
 122
 123         M_ASSIGN_CHAR(int_frac_digits);
 124         M_ASSIGN_CHAR(frac_digits);
 125         M_ASSIGN_CHAR(p_cs_precedes);
 126         M_ASSIGN_CHAR(p_sep_by_space);
 127         M_ASSIGN_CHAR(n_cs_precedes);
 128         M_ASSIGN_CHAR(n_sep_by_space);
 129         M_ASSIGN_CHAR(p_sign_posn);
 130         M_ASSIGN_CHAR(n_sign_posn);
 131
 132         /*
 133          * The six additional C99 international monetary formatting
 134          * parameters default to the national parameters when
 135          * reading FreeBSD LC_MONETARY data files.
 136          */
 137 #define M_ASSIGN_ICHAR(NAME)                            \
 138         if (lmon->int_##NAME == NULL)                   \
 139                 lmon->int_##NAME = lmon->NAME;          \
 140         else                                            \
 141                 M_ASSIGN_CHAR(int_##NAME);
 142
 143         M_ASSIGN_ICHAR(p_cs_precedes);
 144         M_ASSIGN_ICHAR(n_cs_precedes);
 145         M_ASSIGN_ICHAR(p_sep_by_space);
 146         M_ASSIGN_ICHAR(n_sep_by_space);
 147         M_ASSIGN_ICHAR(p_sign_posn);
 148         M_ASSIGN_ICHAR(n_sign_posn);
 149
 150         /*
 151          * Now calculate the currency string (CRNCYSTR) for nl_langinfo.
 152          * This is a legacy SUSv2 interface.
 153          */
 154         if ((lmon->p_cs_precedes[0] == lmon->n_cs_precedes[0]) &&
 155             (lmon->currency_symbol[0] != '\0')) {
 156                 char sign = '\0';
 157                 switch (lmon->p_cs_precedes[0]) {
 158                 case 0:
 159                         sign = '+';
 160                         break;
 161                 case 1:
 162                         sign = '-';
 163                         break;
 164                 case CHAR_MAX:
 165                         /*
 166                          * Substitute currency string for radix character.
 167                          * To the best of my knowledge, no locale uses this.
 168                          */
 169                         if (strcmp(lmon->mon_decimal_point,
 170                             lmon->currency_symbol) == 0)
 171                                 sign = '.';
 172                         break;
 173                 }
 174                 (void) snprintf(lmon->crncystr, clen, "%c%s", sign,
 175                     lmon->currency_symbol);
 176         }
 177
 178         return (ldata);
 179 }