1/*-
2 * Copyright (c) 2002 Tim J. Robbins.
3 * All rights reserved.
4 *
5 * Copyright (c) 2011 The FreeBSD Foundation
6 * All rights reserved.
7 * Portions of this software were developed by David Chisnall
8 * under sponsorship from the FreeBSD Foundation.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <errno.h>
36#include <string.h>
37#include <wctype.h>
38#include "xlocale_private.h"
39
40enum {
41	_WCT_ERROR	= 0,
42	_WCT_TOLOWER	= 1,
43	_WCT_TOUPPER	= 2
44};
45
46wint_t
47towctrans_l(wint_t wc, wctrans_t desc, locale_t locale)
48{
49	switch (desc) {
50	case _WCT_TOLOWER:
51		wc = towlower_l(wc, locale);
52		break;
53	case _WCT_TOUPPER:
54		wc = towupper_l(wc, locale);
55		break;
56	case _WCT_ERROR:
57	default:
58		errno = EINVAL;
59		break;
60	}
61
62	return (wc);
63}
64wint_t
65towctrans(wint_t wc, wctrans_t desc)
66{
67	return towctrans_l(wc, desc, __get_locale());
68}
69
70/*
71 * wctrans() calls this will a 0 locale.  If this is ever modified to actually
72 * use the locale, wctrans() must be modified to call __get_locale().
73 */
74wctrans_t
75wctrans_l(const char *charclass, locale_t locale)
76{
77	struct {
78		const char	*name;
79		wctrans_t	 trans;
80	} ccls[] = {
81		{ "tolower",	_WCT_TOLOWER },
82		{ "toupper",	_WCT_TOUPPER },
83		{ NULL,		_WCT_ERROR },		/* Default */
84	};
85	int i;
86
87	i = 0;
88	while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
89		i++;
90
91	if (ccls[i].trans == _WCT_ERROR)
92		errno = EINVAL;
93	return (ccls[i].trans);
94}
95
96wctrans_t
97wctrans(const char *charclass)
98{
99	return wctrans_l(charclass, 0);
100}
101
102