1 /* $FreeBSD: head/lib/libiconv_modules/iconv_none/citrus_iconv_none.c 281550 2015-04-15 09:09:20Z tijl $ */
2 /* $NetBSD: citrus_iconv_none.c,v 1.3 2011/05/23 14:45:44 joerg Exp $ */
3
4 /*-
5 * Copyright (c)2003 Citrus Project,
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 #include <sys/queue.h>
32
33 #include <assert.h>
34 #include <errno.h>
35 #include <stdbool.h>
36 #include <stdlib.h>
37 #include <string.h>
38
39 #include "citrus_types.h"
40 #include "citrus_module.h"
41 #include "citrus_hash.h"
42 #include "citrus_iconv.h"
43 #include "citrus_iconv_none.h"
44
45 /* ---------------------------------------------------------------------- */
46
47 _CITRUS_ICONV_DECLS(iconv_none);
48 _CITRUS_ICONV_DEF_OPS(iconv_none);
49
50
51 /* ---------------------------------------------------------------------- */
52
53 int
_citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops * ops)54 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops)
55 {
56
57 memcpy(ops, &_citrus_iconv_none_iconv_ops,
58 sizeof(_citrus_iconv_none_iconv_ops));
59
60 return (0);
61 }
62
63 static int
64 /*ARGSUSED*/
_citrus_iconv_none_iconv_init_shared(struct _citrus_iconv_shared * __restrict ci,const char * __restrict in __unused,const char * __restrict out __unused)65 _citrus_iconv_none_iconv_init_shared(
66 struct _citrus_iconv_shared * __restrict ci,
67 const char * __restrict in __unused, const char * __restrict out __unused)
68 {
69
70 ci->ci_closure = NULL;
71 return (0);
72 }
73
74 static void
75 /*ARGSUSED*/
_citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared * ci __unused)76 _citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared *ci __unused)
77 {
78
79 }
80
81 static int
82 /*ARGSUSED*/
_citrus_iconv_none_iconv_init_context(struct _citrus_iconv * cv)83 _citrus_iconv_none_iconv_init_context(struct _citrus_iconv *cv)
84 {
85
86 cv->cv_closure = NULL;
87 return (0);
88 }
89
90 static void
91 /*ARGSUSED*/
_citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv * cv __unused)92 _citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv *cv __unused)
93 {
94
95 }
96
97 static int
98 /*ARGSUSED*/
_citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused,char * __restrict * __restrict in,size_t * __restrict inbytes,char * __restrict * __restrict out,size_t * __restrict outbytes,uint32_t flags __unused,size_t * __restrict invalids)99 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused,
100 char * __restrict * __restrict in, size_t * __restrict inbytes,
101 char * __restrict * __restrict out, size_t * __restrict outbytes,
102 uint32_t flags __unused, size_t * __restrict invalids)
103 {
104 size_t len;
105 int e2big;
106
107 if ((in == NULL) || (out == NULL) || (inbytes == NULL))
108 return (0);
109 if ((*in == NULL) || (*out == NULL) || (*inbytes == 0) || (*outbytes == 0))
110 return (0);
111 len = *inbytes;
112 e2big = 0;
113 if (*outbytes<len) {
114 e2big = 1;
115 len = *outbytes;
116 }
117 memcpy(*out, *in, len);
118 in += len;
119 *inbytes -= len;
120 out += len;
121 *outbytes -= len;
122 *invalids = 0;
123 if (e2big)
124 return (E2BIG);
125
126 return (0);
127 }
128