1 /*
   2  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
   3  * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27 
  28 #include "lint.h"
  29 #include <limits.h>
  30 #include <stddef.h>
  31 #include <stdlib.h>
  32 #include "ldpart.h"
  33 #include "lmonetary.h"
  34 
  35 extern int __mlocale_changed;
  36 extern const char *__fix_locale_grouping_str(const char *);
  37 
  38 #define LCMONETARY_SIZE_FULL (sizeof (struct lc_monetary_T) / sizeof (char *))
  39 #define LCMONETARY_SIZE_MIN \
  40         (offsetof(struct lc_monetary_T, int_p_cs_precedes) / sizeof (char *))
  41 
  42 static char     empty[] = "";
  43 static char     numempty[] = { CHAR_MAX, '\0' };
  44 
  45 static const struct lc_monetary_T _C_monetary_locale = {
  46         empty,          /* int_curr_symbol */
  47         empty,          /* currency_symbol */
  48         empty,          /* mon_decimal_point */
  49         empty,          /* mon_thousands_sep */
  50         numempty,       /* mon_grouping */
  51         empty,          /* positive_sign */
  52         empty,          /* negative_sign */
  53         numempty,       /* int_frac_digits */
  54         numempty,       /* frac_digits */
  55         numempty,       /* p_cs_precedes */
  56         numempty,       /* p_sep_by_space */
  57         numempty,       /* n_cs_precedes */
  58         numempty,       /* n_sep_by_space */
  59         numempty,       /* p_sign_posn */
  60         numempty,       /* n_sign_posn */
  61         numempty,       /* int_p_cs_precedes */
  62         numempty,       /* int_n_cs_precedes */
  63         numempty,       /* int_p_sep_by_space */
  64         numempty,       /* int_n_sep_by_space */
  65         numempty,       /* int_p_sign_posn */
  66         numempty        /* int_n_sign_posn */
  67 };
  68 
  69 static struct lc_monetary_T _monetary_locale;
  70 static int      _monetary_using_locale;
  71 static char     *_monetary_locale_buf;
  72 
  73 static char
  74 cnv(const char *str)
  75 {
  76         int i = strtol(str, NULL, 10);
  77 
  78         if (i == -1)
  79                 i = CHAR_MAX;
  80         return ((char)i);
  81 }
  82 
  83 int
  84 __monetary_load_locale(const char *name)
  85 {
  86         int ret;
  87 
  88         ret = __part_load_locale(name, &_monetary_using_locale,
  89             &_monetary_locale_buf, "LC_MONETARY",
  90             LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
  91             (const char **)&_monetary_locale);
  92         if (ret != _LDP_ERROR)
  93                 __mlocale_changed = 1;
  94         if (ret == _LDP_LOADED) {
  95                 _monetary_locale.mon_grouping =
  96                     __fix_locale_grouping_str(_monetary_locale.mon_grouping);
  97 
  98 #define M_ASSIGN_CHAR(NAME) \
  99                 (((char *)_monetary_locale.NAME)[0] = \
 100                         cnv(_monetary_locale.NAME))
 101 
 102                 M_ASSIGN_CHAR(int_frac_digits);
 103                 M_ASSIGN_CHAR(frac_digits);
 104                 M_ASSIGN_CHAR(p_cs_precedes);
 105                 M_ASSIGN_CHAR(p_sep_by_space);
 106                 M_ASSIGN_CHAR(n_cs_precedes);
 107                 M_ASSIGN_CHAR(n_sep_by_space);
 108                 M_ASSIGN_CHAR(p_sign_posn);
 109                 M_ASSIGN_CHAR(n_sign_posn);
 110 
 111                 /*
 112                  * The six additional C99 international monetary formatting
 113                  * parameters default to the national parameters when
 114                  * reading FreeBSD LC_MONETARY data files.
 115                  */
 116 #define M_ASSIGN_ICHAR(NAME)                                    \
 117                 if (_monetary_locale.int_##NAME == NULL)        \
 118                         _monetary_locale.int_##NAME =           \
 119                             _monetary_locale.NAME;              \
 120                 else                                            \
 121                         M_ASSIGN_CHAR(int_##NAME);
 122 
 123                 M_ASSIGN_ICHAR(p_cs_precedes);
 124                 M_ASSIGN_ICHAR(n_cs_precedes);
 125                 M_ASSIGN_ICHAR(p_sep_by_space);
 126                 M_ASSIGN_ICHAR(n_sep_by_space);
 127                 M_ASSIGN_ICHAR(p_sign_posn);
 128                 M_ASSIGN_ICHAR(n_sign_posn);
 129         }
 130         return (ret);
 131 }
 132 
 133 struct lc_monetary_T *
 134 __get_current_monetary_locale(void)
 135 {
 136         return (_monetary_using_locale ? &_monetary_locale :
 137             (struct lc_monetary_T *)&_C_monetary_locale);
 138 }