1/* $NetBSD: citrus_stdenc.c,v 1.3 2005/10/29 18:02:04 tshiozak Exp $ */ 2 3/*- 4 * Copyright (c)2003 Citrus Project, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30#if defined(LIBC_SCCS) && !defined(lint) 31__RCSID("$NetBSD: citrus_stdenc.c,v 1.3 2005/10/29 18:02:04 tshiozak Exp $"); 32#endif /* LIBC_SCCS and not lint */ 33 34#include "namespace.h" 35#include <assert.h> 36#include <errno.h> 37#include <stdlib.h> 38#include <string.h> 39 40#include "citrus_namespace.h" 41#include "citrus_types.h" 42#include "citrus_module.h" 43#include "citrus_stdenc.h" 44#include "citrus_none.h" 45 46struct _citrus_stdenc _citrus_stdenc_default = { 47 &_citrus_NONE_stdenc_ops, /* ce_ops */ 48 NULL, /* ce_closure */ 49 NULL, /* ce_module */ 50 &_citrus_NONE_stdenc_traits, /* ce_traits */ 51}; 52 53#ifdef _I18N_DYNAMIC 54 55static int 56/*ARGSUSED*/ 57get_state_desc_default(struct _citrus_stdenc * __restrict ce, 58 void * __restrict ps, 59 int id, 60 struct _citrus_stdenc_state_desc * __restrict d) 61{ 62 return EOPNOTSUPP; 63} 64 65int 66_citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce, 67 char const * __restrict encname, 68 const void * __restrict variable, size_t lenvar) 69{ 70 int ret; 71 _citrus_module_t handle; 72 struct _citrus_stdenc *ce; 73 _citrus_stdenc_getops_t getops; 74 75 _DIAGASSERT(encname != NULL); 76 _DIAGASSERT(!lenvar || variable!=NULL); 77 _DIAGASSERT(rce != NULL); 78 79 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) { 80 *rce = &_citrus_stdenc_default; 81 return (0); 82 } 83 ce = malloc(sizeof(*ce)); 84 if (ce==NULL) { 85 ret = errno; 86 goto bad; 87 } 88 ce->ce_ops = NULL; 89 ce->ce_closure = NULL; 90 ce->ce_module = NULL; 91 ce->ce_traits = NULL; 92 93 ret = _citrus_load_module(&handle, encname); 94 if (ret) 95 goto bad; 96 97 ce->ce_module = handle; 98 99 getops = 100 (_citrus_stdenc_getops_t)_citrus_find_getops(ce->ce_module, 101 encname, "stdenc"); 102 if (getops == NULL) { 103 ret = EINVAL; 104 goto bad; 105 } 106 107 ce->ce_ops = (struct _citrus_stdenc_ops *)malloc(sizeof(*ce->ce_ops)); 108 if (ce->ce_ops == NULL) { 109 ret = errno; 110 goto bad; 111 } 112 113 ret = (*getops)(ce->ce_ops, sizeof(*ce->ce_ops), 114 _CITRUS_STDENC_ABI_VERSION); 115 if (ret) 116 goto bad; 117 118 /* If return ABI version is not expected, should fixup it */ 119 if (ce->ce_ops->eo_abi_version < 0x00000002) { 120 ce->ce_ops->eo_get_state_desc = &get_state_desc_default; 121 } 122 123 /* validation check */ 124 if (ce->ce_ops->eo_init == NULL || 125 ce->ce_ops->eo_uninit == NULL || 126 ce->ce_ops->eo_init_state == NULL || 127 ce->ce_ops->eo_mbtocs == NULL || 128 ce->ce_ops->eo_cstomb == NULL || 129 ce->ce_ops->eo_mbtowc == NULL || 130 ce->ce_ops->eo_wctomb == NULL || 131 ce->ce_ops->eo_get_state_desc == NULL) { 132 ret = EINVAL; 133 goto bad; 134 } 135 136 /* allocate traits */ 137 ce->ce_traits = malloc(sizeof(*ce->ce_traits)); 138 if (ce->ce_traits == NULL) { 139 ret = errno; 140 goto bad; 141 } 142 /* init and get closure */ 143 ret = (*ce->ce_ops->eo_init)(ce, variable, lenvar, ce->ce_traits); 144 if (ret) 145 goto bad; 146 147 *rce = ce; 148 149 return (0); 150 151bad: 152 _citrus_stdenc_close(ce); 153 return (ret); 154} 155 156void 157_citrus_stdenc_close(struct _citrus_stdenc *ce) 158{ 159 160 _DIAGASSERT(ce != NULL); 161 162 if (ce == &_citrus_stdenc_default) 163 return; 164 165 if (ce->ce_module) { 166 if (ce->ce_ops) { 167 if (ce->ce_closure && ce->ce_ops->eo_uninit) 168 (*ce->ce_ops->eo_uninit)(ce); 169 free(ce->ce_ops); 170 } 171 free(ce->ce_traits); 172 _citrus_unload_module(ce->ce_module); 173 } 174 free(ce); 175} 176 177#else 178/* !_I18N_DYNAMIC */ 179 180int 181/*ARGSUSED*/ 182_citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce, 183 char const * __restrict encname, 184 const void * __restrict variable, size_t lenvar) 185{ 186 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) { 187 *rce = &_citrus_stdenc_default; 188 return (0); 189 } 190 return (EINVAL); 191} 192 193void 194/*ARGSUSED*/ 195_citrus_stdenc_close(struct _citrus_stdenc *ce) 196{ 197} 198 199#endif 200