1/* $FreeBSD$ */
2/* $NetBSD: citrus_stdenc_template.h,v 1.4 2008/02/09 14:56:20 junyoung Exp $ */
3
4/*-
5 * SPDX-License-Identifier: BSD-2-Clause
6 *
7 * Copyright (c)2003 Citrus Project,
8 * All rights reserved.
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 <iconv.h>
33
34/*
35 * CAUTION: THIS IS NOT STANDALONE FILE
36 *
37 * function templates of iconv standard encoding handler for each encodings.
38 *
39 */
40
41/*
42 * macros
43 */
44
45#undef _TO_EI
46#undef _CE_TO_EI
47#undef _TO_STATE
48#define _TO_EI(_cl_)	((_ENCODING_INFO*)(_cl_))
49#define _CE_TO_EI(_ce_)	(_TO_EI((_ce_)->ce_closure))
50#define _TO_STATE(_ps_)	((_ENCODING_STATE*)(_ps_))
51
52/* ----------------------------------------------------------------------
53 * templates for public functions
54 */
55
56int
57_FUNCNAME(stdenc_getops)(struct _citrus_stdenc_ops *ops,
58    size_t lenops __unused)
59{
60
61	memcpy(ops, &_FUNCNAME(stdenc_ops), sizeof(_FUNCNAME(stdenc_ops)));
62
63	return (0);
64}
65
66static int
67_FUNCNAME(stdenc_init)(struct _citrus_stdenc * __restrict ce,
68    const void * __restrict var, size_t lenvar,
69    struct _citrus_stdenc_traits * __restrict et)
70{
71	_ENCODING_INFO *ei;
72	int ret;
73
74	ei = NULL;
75	if (sizeof(_ENCODING_INFO) > 0) {
76		ei = calloc(1, sizeof(_ENCODING_INFO));
77		if (ei == NULL)
78			return (errno);
79	}
80
81	ret = _FUNCNAME(encoding_module_init)(ei, var, lenvar);
82	if (ret) {
83		free((void *)ei);
84		return (ret);
85	}
86
87	ce->ce_closure = ei;
88	et->et_state_size = sizeof(_ENCODING_STATE);
89	et->et_mb_cur_max = _ENCODING_MB_CUR_MAX(_CE_TO_EI(ce));
90
91	return (0);
92}
93
94static void
95_FUNCNAME(stdenc_uninit)(struct _citrus_stdenc * __restrict ce)
96{
97
98	if (ce) {
99		_FUNCNAME(encoding_module_uninit)(_CE_TO_EI(ce));
100		free(ce->ce_closure);
101	}
102}
103
104static int
105_FUNCNAME(stdenc_init_state)(struct _citrus_stdenc * __restrict ce,
106    void * __restrict ps)
107{
108
109	_FUNCNAME(init_state)(_CE_TO_EI(ce), _TO_STATE(ps));
110
111	return (0);
112}
113
114static int
115_FUNCNAME(stdenc_mbtocs)(struct _citrus_stdenc * __restrict ce,
116    _citrus_csid_t * __restrict csid, _citrus_index_t * __restrict idx,
117    char ** __restrict s, size_t n, void * __restrict ps,
118    size_t * __restrict nresult, struct iconv_hooks *hooks)
119{
120	wchar_t wc;
121	int ret;
122
123	ret = _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), &wc, s, n,
124	    _TO_STATE(ps), nresult);
125
126	if ((ret == 0) && *nresult != (size_t)-2)
127		ret = _FUNCNAME(stdenc_wctocs)(_CE_TO_EI(ce), csid, idx, wc);
128
129	if ((ret == 0) && (hooks != NULL) && (hooks->uc_hook != NULL))
130		hooks->uc_hook((unsigned int)*idx, hooks->data);
131	return (ret);
132}
133
134static int
135_FUNCNAME(stdenc_cstomb)(struct _citrus_stdenc * __restrict ce,
136    char * __restrict s, size_t n, _citrus_csid_t csid, _citrus_index_t idx,
137    void * __restrict ps, size_t * __restrict nresult,
138    struct iconv_hooks *hooks __unused)
139{
140	wchar_t wc;
141	int ret;
142
143	wc = ret = 0;
144
145	if (csid != _CITRUS_CSID_INVALID)
146		ret = _FUNCNAME(stdenc_cstowc)(_CE_TO_EI(ce), &wc, csid, idx);
147
148	if (ret == 0)
149		ret = _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc,
150		    _TO_STATE(ps), nresult);
151	return (ret);
152}
153
154static int
155_FUNCNAME(stdenc_mbtowc)(struct _citrus_stdenc * __restrict ce,
156    _citrus_wc_t * __restrict wc, char ** __restrict s, size_t n,
157    void * __restrict ps, size_t * __restrict nresult,
158    struct iconv_hooks *hooks)
159{
160	int ret;
161
162	ret = _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), wc, s, n,
163	    _TO_STATE(ps), nresult);
164	if ((ret == 0) && (hooks != NULL) && (hooks->wc_hook != NULL))
165		hooks->wc_hook(*wc, hooks->data);
166	return (ret);
167}
168
169static int
170_FUNCNAME(stdenc_wctomb)(struct _citrus_stdenc * __restrict ce,
171    char * __restrict s, size_t n, _citrus_wc_t wc, void * __restrict ps,
172    size_t * __restrict nresult, struct iconv_hooks *hooks __unused)
173{
174	int ret;
175
176	ret = _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc, _TO_STATE(ps),
177	    nresult);
178	return (ret);
179}
180
181static int
182_FUNCNAME(stdenc_put_state_reset)(struct _citrus_stdenc * __restrict ce __unused,
183    char * __restrict s __unused, size_t n __unused,
184    void * __restrict ps __unused, size_t * __restrict nresult)
185{
186
187#if _ENCODING_IS_STATE_DEPENDENT
188	return ((_FUNCNAME(put_state_reset)(_CE_TO_EI(ce), s, n, _TO_STATE(ps),
189	    nresult)));
190#else
191	*nresult = 0;
192	return (0);
193#endif
194}
195
196static int
197_FUNCNAME(stdenc_get_state_desc)(struct _citrus_stdenc * __restrict ce,
198    void * __restrict ps, int id,
199    struct _citrus_stdenc_state_desc * __restrict d)
200{
201	int ret;
202
203	switch (id) {
204	case _STDENC_SDID_GENERIC:
205		ret = _FUNCNAME(stdenc_get_state_desc_generic)(
206		    _CE_TO_EI(ce), _TO_STATE(ps), &d->u.generic.state);
207		break;
208	default:
209		ret = EOPNOTSUPP;
210	}
211
212	return (ret);
213}
214