xref: /illumos-gate/usr/src/lib/libc/port/locale/lmonetary.c (revision 538aa54d819fa7751ca82bcc30d4ed8c57ec2ef2)
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
cnv(const char * str)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 *
__lc_monetary_load(const char * name)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 }
180