1 /* $NetBSD: src/lib/libc/citrus/citrus_stdenc.c,v 1.2 2003/07/10 08:50:44 tshiozak Exp $ */
2 /* $DragonFly: src/lib/libc/citrus/citrus_stdenc.c,v 1.1 2005/03/11 23:33:53 joerg Exp $ */
5 * Copyright (c)2003 Citrus Project,
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
30 #include <sys/types.h>
36 #include "citrus_namespace.h"
37 #include "citrus_types.h"
38 #include "citrus_module.h"
39 #include "citrus_stdenc.h"
40 #include "citrus_none.h"
42 struct _citrus_stdenc _citrus_stdenc_default = {
43 &_citrus_NONE_stdenc_ops, /* ce_ops */
44 NULL, /* ce_closure */
46 &_citrus_NONE_stdenc_traits, /* ce_traits */
52 _citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce,
53 char const * __restrict encname,
54 const void * __restrict variable, size_t lenvar)
57 _citrus_module_t handle;
58 struct _citrus_stdenc *ce;
59 _citrus_stdenc_getops_t getops;
61 _DIAGASSERT(encname != NULL);
62 _DIAGASSERT(!lenvar || variable!=NULL);
63 _DIAGASSERT(rce != NULL);
65 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) {
66 *rce = &_citrus_stdenc_default;
69 ce = malloc(sizeof(*ce));
75 ce->ce_closure = NULL;
79 ret = _citrus_load_module(&handle, encname);
83 ce->ce_module = handle;
86 (_citrus_stdenc_getops_t)_citrus_find_getops(ce->ce_module,
93 ce->ce_ops = (struct _citrus_stdenc_ops *)malloc(sizeof(*ce->ce_ops));
94 if (ce->ce_ops == NULL) {
99 ret = (*getops)(ce->ce_ops, sizeof(*ce->ce_ops),
100 _CITRUS_STDENC_ABI_VERSION);
104 /* If return ABI version is not expected, should fixup it */
106 /* validation check */
107 if (ce->ce_ops->eo_init == NULL ||
108 ce->ce_ops->eo_uninit == NULL ||
109 ce->ce_ops->eo_init_state == NULL ||
110 ce->ce_ops->eo_mbtocs == NULL ||
111 ce->ce_ops->eo_cstomb == NULL ||
112 ce->ce_ops->eo_mbtowc == NULL ||
113 ce->ce_ops->eo_wctomb == NULL)
116 /* allocate traits */
117 ce->ce_traits = malloc(sizeof(*ce->ce_traits));
118 if (ce->ce_traits == NULL) {
122 /* init and get closure */
123 ret = (*ce->ce_ops->eo_init)(ce, variable, lenvar, ce->ce_traits);
132 _citrus_stdenc_close(ce);
137 _citrus_stdenc_close(struct _citrus_stdenc *ce)
140 _DIAGASSERT(ce != NULL);
142 if (ce == &_citrus_stdenc_default)
147 if (ce->ce_closure && ce->ce_ops->eo_uninit)
148 (*ce->ce_ops->eo_uninit)(ce);
152 _citrus_unload_module(ce->ce_module);
162 _citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce,
163 char const * __restrict encname,
164 const void * __restrict variable, size_t lenvar)
166 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) {
167 *rce = &_citrus_stdenc_default;
175 _citrus_stdenc_close(struct _citrus_stdenc *ce)