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 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 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 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 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 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 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 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 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 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 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