1 /* $NetBSD: citrus_stdenc_template.h,v 1.4 2008/02/09 14:56:20 junyoung Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c)2003 Citrus Project,
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include <iconv.h>
32
33 /*
34 * CAUTION: THIS IS NOT STANDALONE FILE
35 *
36 * function templates of iconv standard encoding handler for each encodings.
37 *
38 */
39
40 /*
41 * macros
42 */
43
44 #undef _TO_EI
45 #undef _CE_TO_EI
46 #undef _TO_STATE
47 #define _TO_EI(_cl_) ((_ENCODING_INFO*)(_cl_))
48 #define _CE_TO_EI(_ce_) (_TO_EI((_ce_)->ce_closure))
49 #define _TO_STATE(_ps_) ((_ENCODING_STATE*)(_ps_))
50
51 #ifndef _ENCODING_MB_CUR_MIN
52 /* Assume one byte minimum unless otherwise specified. */
53 #define _ENCODING_MB_CUR_MIN(_ei_) 1
54 #endif
55
56 /* ----------------------------------------------------------------------
57 * templates for public functions
58 */
59
60 int
_FUNCNAME(stdenc_getops)61 _FUNCNAME(stdenc_getops)(struct _citrus_stdenc_ops *ops,
62 size_t lenops __unused)
63 {
64
65 memcpy(ops, &_FUNCNAME(stdenc_ops), sizeof(_FUNCNAME(stdenc_ops)));
66
67 return (0);
68 }
69
70 static int
_FUNCNAME(stdenc_init)71 _FUNCNAME(stdenc_init)(struct _citrus_stdenc * __restrict ce,
72 const void * __restrict var, size_t lenvar,
73 struct _citrus_stdenc_traits * __restrict et)
74 {
75 _ENCODING_INFO *ei;
76 int ret;
77
78 ei = NULL;
79 if (sizeof(_ENCODING_INFO) > 0) {
80 ei = calloc(1, sizeof(_ENCODING_INFO));
81 if (ei == NULL)
82 return (errno);
83 }
84
85 ret = _FUNCNAME(encoding_module_init)(ei, var, lenvar);
86 if (ret) {
87 free((void *)ei);
88 return (ret);
89 }
90
91 ce->ce_closure = ei;
92 et->et_state_size = sizeof(_ENCODING_STATE);
93 et->et_mb_cur_max = _ENCODING_MB_CUR_MAX(_CE_TO_EI(ce));
94 et->et_mb_cur_min = _ENCODING_MB_CUR_MIN(_CE_TO_EI(ce));
95
96 return (0);
97 }
98
99 static void
_FUNCNAME(stdenc_uninit)100 _FUNCNAME(stdenc_uninit)(struct _citrus_stdenc * __restrict ce)
101 {
102
103 if (ce) {
104 _FUNCNAME(encoding_module_uninit)(_CE_TO_EI(ce));
105 free(ce->ce_closure);
106 }
107 }
108
109 static int
_FUNCNAME(stdenc_init_state)110 _FUNCNAME(stdenc_init_state)(struct _citrus_stdenc * __restrict ce,
111 void * __restrict ps)
112 {
113
114 _FUNCNAME(init_state)(_CE_TO_EI(ce), _TO_STATE(ps));
115
116 return (0);
117 }
118
119 static int
_FUNCNAME(stdenc_mbtocs)120 _FUNCNAME(stdenc_mbtocs)(struct _citrus_stdenc * __restrict ce,
121 _citrus_csid_t * __restrict csid, _citrus_index_t * __restrict idx,
122 char ** __restrict s, size_t n, void * __restrict ps,
123 size_t * __restrict nresult, struct iconv_hooks *hooks)
124 {
125 wchar_t wc;
126 int ret;
127
128 ret = _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), &wc, s, n,
129 _TO_STATE(ps), nresult);
130
131 if ((ret == 0) && *nresult != (size_t)-2)
132 ret = _FUNCNAME(stdenc_wctocs)(_CE_TO_EI(ce), csid, idx, wc);
133
134 if ((ret == 0) && (hooks != NULL) && (hooks->uc_hook != NULL))
135 hooks->uc_hook((unsigned int)*idx, hooks->data);
136 return (ret);
137 }
138
139 static int
_FUNCNAME(stdenc_cstomb)140 _FUNCNAME(stdenc_cstomb)(struct _citrus_stdenc * __restrict ce,
141 char * __restrict s, size_t n, _citrus_csid_t csid, _citrus_index_t idx,
142 void * __restrict ps, size_t * __restrict nresult,
143 struct iconv_hooks *hooks __unused)
144 {
145 wchar_t wc;
146 int ret;
147
148 wc = ret = 0;
149
150 if (csid != _CITRUS_CSID_INVALID)
151 ret = _FUNCNAME(stdenc_cstowc)(_CE_TO_EI(ce), &wc, csid, idx);
152
153 if (ret == 0)
154 ret = _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc,
155 _TO_STATE(ps), nresult);
156 return (ret);
157 }
158
159 static int
_FUNCNAME(stdenc_mbtowc)160 _FUNCNAME(stdenc_mbtowc)(struct _citrus_stdenc * __restrict ce,
161 _citrus_wc_t * __restrict wc, char ** __restrict s, size_t n,
162 void * __restrict ps, size_t * __restrict nresult,
163 struct iconv_hooks *hooks)
164 {
165 int ret;
166
167 ret = _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), wc, s, n,
168 _TO_STATE(ps), nresult);
169 if ((ret == 0) && (hooks != NULL) && (hooks->wc_hook != NULL))
170 hooks->wc_hook(*wc, hooks->data);
171 return (ret);
172 }
173
174 static int
_FUNCNAME(stdenc_wctomb)175 _FUNCNAME(stdenc_wctomb)(struct _citrus_stdenc * __restrict ce,
176 char * __restrict s, size_t n, _citrus_wc_t wc, void * __restrict ps,
177 size_t * __restrict nresult, struct iconv_hooks *hooks __unused)
178 {
179 int ret;
180
181 ret = _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc, _TO_STATE(ps),
182 nresult);
183 return (ret);
184 }
185
186 static int
_FUNCNAME(stdenc_put_state_reset)187 _FUNCNAME(stdenc_put_state_reset)(struct _citrus_stdenc * __restrict ce __unused,
188 char * __restrict s __unused, size_t n __unused,
189 void * __restrict ps __unused, size_t * __restrict nresult)
190 {
191
192 #if _ENCODING_IS_STATE_DEPENDENT
193 return ((_FUNCNAME(put_state_reset)(_CE_TO_EI(ce), s, n, _TO_STATE(ps),
194 nresult)));
195 #else
196 *nresult = 0;
197 return (0);
198 #endif
199 }
200
201 static int
_FUNCNAME(stdenc_get_state_desc)202 _FUNCNAME(stdenc_get_state_desc)(struct _citrus_stdenc * __restrict ce,
203 void * __restrict ps, int id,
204 struct _citrus_stdenc_state_desc * __restrict d)
205 {
206 int ret;
207
208 switch (id) {
209 case _STDENC_SDID_GENERIC:
210 ret = _FUNCNAME(stdenc_get_state_desc_generic)(
211 _CE_TO_EI(ce), _TO_STATE(ps), &d->u.generic.state);
212 break;
213 default:
214 ret = EOPNOTSUPP;
215 }
216
217 return (ret);
218 }
219