xref: /titanic_41/usr/src/lib/libc/port/locale/lmonetary.c (revision b6805bf78d2bbbeeaea8909a05623587b42d58b3)
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 }
139