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