1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2002 Tim J. Robbins.
5 * All rights reserved.
6 *
7 * Copyright (c) 2011 The FreeBSD Foundation
8 * All rights reserved.
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 __FBSDID("$FreeBSD$");
36
37 #include <errno.h>
38 #include <string.h>
39 #include <wctype.h>
40 #include "xlocale_private.h"
41
42 enum {
43 _WCT_ERROR = 0,
44 _WCT_TOLOWER = 1,
45 _WCT_TOUPPER = 2
46 };
47
48 wint_t
towctrans_l(wint_t wc,wctrans_t desc,locale_t locale)49 towctrans_l(wint_t wc, wctrans_t desc, locale_t locale)
50 {
51 switch (desc) {
52 case _WCT_TOLOWER:
53 wc = towlower_l(wc, locale);
54 break;
55 case _WCT_TOUPPER:
56 wc = towupper_l(wc, locale);
57 break;
58 case _WCT_ERROR:
59 default:
60 errno = EINVAL;
61 break;
62 }
63
64 return (wc);
65 }
66 wint_t
towctrans(wint_t wc,wctrans_t desc)67 towctrans(wint_t wc, wctrans_t desc)
68 {
69 return towctrans_l(wc, desc, __get_locale());
70 }
71
72 /*
73 * wctrans() calls this will a 0 locale. If this is ever modified to actually
74 * use the locale, wctrans() must be modified to call __get_locale().
75 */
76 wctrans_t
wctrans_l(const char * charclass,locale_t locale)77 wctrans_l(const char *charclass, locale_t locale)
78 {
79 struct {
80 const char *name;
81 wctrans_t trans;
82 } ccls[] = {
83 { "tolower", _WCT_TOLOWER },
84 { "toupper", _WCT_TOUPPER },
85 { NULL, _WCT_ERROR }, /* Default */
86 };
87 int i;
88
89 i = 0;
90 while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
91 i++;
92
93 if (ccls[i].trans == _WCT_ERROR)
94 errno = EINVAL;
95 return (ccls[i].trans);
96 }
97
98 wctrans_t
wctrans(const char * charclass)99 wctrans(const char *charclass)
100 {
101 return wctrans_l(charclass, 0);
102 }
103
104