2/* $NetBSD: citrus_none.c,v 1.18 2008/06/14 16:01:07 tnozaki Exp $ */
3
4/*-
5 * Copyright (c) 2002 Citrus Project,
6 * Copyright (c) 2010 Gabor Kovesdan <gabor@FreeBSD.org>,
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 <sys/cdefs.h>
32#include <sys/types.h>
33
34#include <assert.h>
35#include <errno.h>
36#include <iconv.h>
37#include <stddef.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
41#include <wchar.h>
42
43#include "citrus_namespace.h"
44#include "citrus_types.h"
45#include "citrus_module.h"
46#include "citrus_none.h"
47#include "citrus_stdenc.h"
48
49_CITRUS_STDENC_DECLS(NONE);
50_CITRUS_STDENC_DEF_OPS(NONE);
51struct _citrus_stdenc_traits _citrus_NONE_stdenc_traits = {
52 0, /* et_state_size */
53 1, /* mb_cur_max */
54};
55
56static int
57_citrus_NONE_stdenc_init(struct _citrus_stdenc * __restrict ce,
58 const void *var __unused, size_t lenvar __unused,
59 struct _citrus_stdenc_traits * __restrict et)
60{
61
62 et->et_state_size = 0;
63 et->et_mb_cur_max = 1;
64
65 ce->ce_closure = NULL;
66
67 return (0);
68}
69
70static void
71_citrus_NONE_stdenc_uninit(struct _citrus_stdenc *ce __unused)
72{
73
74}
75
76static int
77_citrus_NONE_stdenc_init_state(struct _citrus_stdenc * __restrict ce __unused,
78 void * __restrict ps __unused)
79{
80
81 return (0);
82}
83
84static int
85_citrus_NONE_stdenc_mbtocs(struct _citrus_stdenc * __restrict ce __unused,
86 _csid_t *csid, _index_t *idx, char **s, size_t n,
87 void *ps __unused, size_t *nresult, struct iconv_hooks *hooks)
88{
89
90 if (n < 1) {
91 *nresult = (size_t)-2;
92 return (0);
93 }
94
95 *csid = 0;
96 *idx = (_index_t)(unsigned char)*(*s)++;
97 *nresult = *idx == 0 ? 0 : 1;
98
99 if ((hooks != NULL) && (hooks->uc_hook != NULL))
100 hooks->uc_hook((unsigned int)*idx, hooks->data);
101
102 return (0);
103}
104
105static int
106_citrus_NONE_stdenc_cstomb(struct _citrus_stdenc * __restrict ce __unused,
107 char *s, size_t n, _csid_t csid, _index_t idx, void *ps __unused,
108 size_t *nresult, struct iconv_hooks *hooks __unused)
109{
110
111 if (csid == _CITRUS_CSID_INVALID) {
112 *nresult = 0;
113 return (0);
114 }
115 if (csid != 0)
116 return (EILSEQ);
117
118 if ((idx & 0x000000FF) == idx) {
119 if (n < 1) {
120 *nresult = (size_t)-1;
121 return (E2BIG);
122 }
123 *s = (char)idx;
124 *nresult = 1;
125 } else if ((idx & 0x0000FFFF) == idx) {
126 if (n < 2) {
127 *nresult = (size_t)-1;
128 return (E2BIG);
129 }
130 s[0] = (char)idx;
131 /* XXX: might be endian dependent */
132 s[1] = (char)(idx >> 8);
133 *nresult = 2;
134 } else if ((idx & 0x00FFFFFF) == idx) {
135 if (n < 3) {
136 *nresult = (size_t)-1;
137 return (E2BIG);
138 }
139 s[0] = (char)idx;
140 /* XXX: might be endian dependent */
141 s[1] = (char)(idx >> 8);
142 s[2] = (char)(idx >> 16);
143 *nresult = 3;
144 } else {
145 if (n < 3) {
146 *nresult = (size_t)-1;
147 return (E2BIG);
148 }
149 s[0] = (char)idx;
150 /* XXX: might be endian dependent */
151 s[1] = (char)(idx >> 8);
152 s[2] = (char)(idx >> 16);
153 s[3] = (char)(idx >> 24);
154 *nresult = 4;
155 }
156
157 return (0);
158}
159
160static int
161_citrus_NONE_stdenc_mbtowc(struct _citrus_stdenc * __restrict ce __unused,
162 _wc_t * __restrict pwc, char ** __restrict s, size_t n,
163 void * __restrict pspriv __unused, size_t * __restrict nresult,
164 struct iconv_hooks *hooks)
165{
166
167 if (s == NULL) {
168 *nresult = 0;
169 return (0);
170 }
171 if (n == 0) {
172 *nresult = (size_t)-2;
173 return (0);
174 }
175
176 if (pwc != NULL)
177 *pwc = (_wc_t)(unsigned char) **s;
178
179 *nresult = *s == '\0' ? 0 : 1;
180
181 if ((hooks != NULL) && (hooks->wc_hook != NULL))
182 hooks->wc_hook(*pwc, hooks->data);
183
184 return (0);
185}
186
187static int
188_citrus_NONE_stdenc_wctomb(struct _citrus_stdenc * __restrict ce __unused,
189 char * __restrict s, size_t n, _wc_t wc,
190 void * __restrict pspriv __unused, size_t * __restrict nresult,
191 struct iconv_hooks *hooks __unused)
192{
| 2/* $NetBSD: citrus_none.c,v 1.18 2008/06/14 16:01:07 tnozaki Exp $ */
3
4/*-
5 * Copyright (c) 2002 Citrus Project,
6 * Copyright (c) 2010 Gabor Kovesdan <gabor@FreeBSD.org>,
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 <sys/cdefs.h>
32#include <sys/types.h>
33
34#include <assert.h>
35#include <errno.h>
36#include <iconv.h>
37#include <stddef.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
41#include <wchar.h>
42
43#include "citrus_namespace.h"
44#include "citrus_types.h"
45#include "citrus_module.h"
46#include "citrus_none.h"
47#include "citrus_stdenc.h"
48
49_CITRUS_STDENC_DECLS(NONE);
50_CITRUS_STDENC_DEF_OPS(NONE);
51struct _citrus_stdenc_traits _citrus_NONE_stdenc_traits = {
52 0, /* et_state_size */
53 1, /* mb_cur_max */
54};
55
56static int
57_citrus_NONE_stdenc_init(struct _citrus_stdenc * __restrict ce,
58 const void *var __unused, size_t lenvar __unused,
59 struct _citrus_stdenc_traits * __restrict et)
60{
61
62 et->et_state_size = 0;
63 et->et_mb_cur_max = 1;
64
65 ce->ce_closure = NULL;
66
67 return (0);
68}
69
70static void
71_citrus_NONE_stdenc_uninit(struct _citrus_stdenc *ce __unused)
72{
73
74}
75
76static int
77_citrus_NONE_stdenc_init_state(struct _citrus_stdenc * __restrict ce __unused,
78 void * __restrict ps __unused)
79{
80
81 return (0);
82}
83
84static int
85_citrus_NONE_stdenc_mbtocs(struct _citrus_stdenc * __restrict ce __unused,
86 _csid_t *csid, _index_t *idx, char **s, size_t n,
87 void *ps __unused, size_t *nresult, struct iconv_hooks *hooks)
88{
89
90 if (n < 1) {
91 *nresult = (size_t)-2;
92 return (0);
93 }
94
95 *csid = 0;
96 *idx = (_index_t)(unsigned char)*(*s)++;
97 *nresult = *idx == 0 ? 0 : 1;
98
99 if ((hooks != NULL) && (hooks->uc_hook != NULL))
100 hooks->uc_hook((unsigned int)*idx, hooks->data);
101
102 return (0);
103}
104
105static int
106_citrus_NONE_stdenc_cstomb(struct _citrus_stdenc * __restrict ce __unused,
107 char *s, size_t n, _csid_t csid, _index_t idx, void *ps __unused,
108 size_t *nresult, struct iconv_hooks *hooks __unused)
109{
110
111 if (csid == _CITRUS_CSID_INVALID) {
112 *nresult = 0;
113 return (0);
114 }
115 if (csid != 0)
116 return (EILSEQ);
117
118 if ((idx & 0x000000FF) == idx) {
119 if (n < 1) {
120 *nresult = (size_t)-1;
121 return (E2BIG);
122 }
123 *s = (char)idx;
124 *nresult = 1;
125 } else if ((idx & 0x0000FFFF) == idx) {
126 if (n < 2) {
127 *nresult = (size_t)-1;
128 return (E2BIG);
129 }
130 s[0] = (char)idx;
131 /* XXX: might be endian dependent */
132 s[1] = (char)(idx >> 8);
133 *nresult = 2;
134 } else if ((idx & 0x00FFFFFF) == idx) {
135 if (n < 3) {
136 *nresult = (size_t)-1;
137 return (E2BIG);
138 }
139 s[0] = (char)idx;
140 /* XXX: might be endian dependent */
141 s[1] = (char)(idx >> 8);
142 s[2] = (char)(idx >> 16);
143 *nresult = 3;
144 } else {
145 if (n < 3) {
146 *nresult = (size_t)-1;
147 return (E2BIG);
148 }
149 s[0] = (char)idx;
150 /* XXX: might be endian dependent */
151 s[1] = (char)(idx >> 8);
152 s[2] = (char)(idx >> 16);
153 s[3] = (char)(idx >> 24);
154 *nresult = 4;
155 }
156
157 return (0);
158}
159
160static int
161_citrus_NONE_stdenc_mbtowc(struct _citrus_stdenc * __restrict ce __unused,
162 _wc_t * __restrict pwc, char ** __restrict s, size_t n,
163 void * __restrict pspriv __unused, size_t * __restrict nresult,
164 struct iconv_hooks *hooks)
165{
166
167 if (s == NULL) {
168 *nresult = 0;
169 return (0);
170 }
171 if (n == 0) {
172 *nresult = (size_t)-2;
173 return (0);
174 }
175
176 if (pwc != NULL)
177 *pwc = (_wc_t)(unsigned char) **s;
178
179 *nresult = *s == '\0' ? 0 : 1;
180
181 if ((hooks != NULL) && (hooks->wc_hook != NULL))
182 hooks->wc_hook(*pwc, hooks->data);
183
184 return (0);
185}
186
187static int
188_citrus_NONE_stdenc_wctomb(struct _citrus_stdenc * __restrict ce __unused,
189 char * __restrict s, size_t n, _wc_t wc,
190 void * __restrict pspriv __unused, size_t * __restrict nresult,
191 struct iconv_hooks *hooks __unused)
192{
|