1 /* $NetBSD: citrus_stdenc_template.h,v 1.4 2008/02/09 14:56:20 junyoung 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 /* 30 * CAUTION: THIS IS NOT STANDALONE FILE 31 * 32 * function templates of iconv standard encoding handler for each encodings. 33 * 34 */ 35 36 /* 37 * macros 38 */ 39 40 #undef _TO_EI 41 #undef _CE_TO_EI 42 #undef _TO_STATE 43 #define _TO_EI(_cl_) ((_ENCODING_INFO*)(_cl_)) 44 #define _CE_TO_EI(_ce_) (_TO_EI((_ce_)->ce_closure)) 45 #define _TO_STATE(_ps_) ((_ENCODING_STATE*)(_ps_)) 46 47 /* ---------------------------------------------------------------------- 48 * templates for public functions 49 */ 50 51 int 52 _FUNCNAME(stdenc_getops)(struct _citrus_stdenc_ops *ops, size_t lenops, 53 uint32_t expected_version) 54 { 55 if (expected_version<_CITRUS_STDENC_ABI_VERSION || lenops<sizeof(*ops)) 56 return (EINVAL); 57 58 memcpy(ops, &_FUNCNAME(stdenc_ops), sizeof(_FUNCNAME(stdenc_ops))); 59 60 return (0); 61 } 62 63 static int 64 _FUNCNAME(stdenc_init)(struct _citrus_stdenc * __restrict ce, 65 const void * __restrict var, size_t lenvar, 66 struct _citrus_stdenc_traits * __restrict et) 67 { 68 int ret; 69 _ENCODING_INFO *ei; 70 71 ei = NULL; 72 if (sizeof(_ENCODING_INFO) > 0) { 73 ei = calloc(1, sizeof(_ENCODING_INFO)); 74 if (ei == NULL) { 75 return errno; 76 } 77 } 78 79 ret = _FUNCNAME(encoding_module_init)(ei, var, lenvar); 80 if (ret) { 81 free((void *)ei); 82 return ret; 83 } 84 85 ce->ce_closure = ei; 86 et->et_state_size = sizeof(_ENCODING_STATE); 87 et->et_mb_cur_max = _ENCODING_MB_CUR_MAX(_CE_TO_EI(ce)); 88 89 return 0; 90 } 91 92 static void 93 _FUNCNAME(stdenc_uninit)(struct _citrus_stdenc * __restrict ce) 94 { 95 if (ce) { 96 _FUNCNAME(encoding_module_uninit)(_CE_TO_EI(ce)); 97 free(ce->ce_closure); 98 } 99 } 100 101 static int 102 _FUNCNAME(stdenc_init_state)(struct _citrus_stdenc * __restrict ce, 103 void * __restrict ps) 104 { 105 _FUNCNAME(init_state)(_CE_TO_EI(ce), _TO_STATE(ps)); 106 107 return 0; 108 } 109 110 static int 111 _FUNCNAME(stdenc_mbtocs)(struct _citrus_stdenc * __restrict ce, 112 _citrus_csid_t * __restrict csid, 113 _citrus_index_t * __restrict idx, 114 const char ** __restrict s, size_t n, 115 void * __restrict ps, size_t * __restrict nresult) 116 { 117 int ret; 118 wchar_t wc; 119 120 _DIAGASSERT(nresult != NULL); 121 122 ret = _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), &wc, s, n, 123 _TO_STATE(ps), nresult); 124 125 if (!ret && *nresult != (size_t)-2) 126 _FUNCNAME(stdenc_wctocs)(_CE_TO_EI(ce), csid, idx, wc); 127 128 return ret; 129 } 130 131 static int 132 _FUNCNAME(stdenc_cstomb)(struct _citrus_stdenc * __restrict ce, 133 char * __restrict s, size_t n, 134 _citrus_csid_t csid, _citrus_index_t idx, 135 void * __restrict ps, size_t * __restrict nresult) 136 { 137 int ret; 138 wchar_t wc; 139 140 _DIAGASSERT(nresult != NULL); 141 142 wc = 0; 143 144 if (csid != _CITRUS_CSID_INVALID) { 145 ret = _FUNCNAME(stdenc_cstowc)(_CE_TO_EI(ce), &wc, csid, idx); 146 if (ret) 147 return ret; 148 } 149 150 return _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc, _TO_STATE(ps), 151 nresult); 152 } 153 154 static int 155 _FUNCNAME(stdenc_mbtowc)(struct _citrus_stdenc * __restrict ce, 156 _citrus_wc_t * __restrict wc, 157 const char ** __restrict s, size_t n, 158 void * __restrict ps, size_t * __restrict nresult) 159 { 160 return _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), wc, s, n, 161 _TO_STATE(ps), nresult); 162 } 163 164 static int 165 _FUNCNAME(stdenc_wctomb)(struct _citrus_stdenc * __restrict ce, 166 char * __restrict s, size_t n, _citrus_wc_t wc, 167 void * __restrict ps, size_t * __restrict nresult) 168 { 169 return _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc, _TO_STATE(ps), 170 nresult); 171 } 172 173 static int 174 _FUNCNAME(stdenc_put_state_reset)(struct _citrus_stdenc * __restrict ce __unused, 175 char * __restrict s __unused, 176 size_t n __unused, 177 void * __restrict ps __unused, 178 size_t * __restrict nresult) 179 { 180 #if _ENCODING_IS_STATE_DEPENDENT 181 return _FUNCNAME(put_state_reset)(_CE_TO_EI(ce), s, n, _TO_STATE(ps), 182 nresult); 183 #else 184 *nresult = 0; 185 return 0; 186 #endif 187 } 188 189 static int 190 _FUNCNAME(stdenc_get_state_desc)(struct _citrus_stdenc * __restrict ce, 191 void * __restrict ps, 192 int id, 193 struct _citrus_stdenc_state_desc * __restrict d) 194 { 195 int ret; 196 197 switch (id) { 198 case _STDENC_SDID_GENERIC: 199 ret = _FUNCNAME(stdenc_get_state_desc_generic)( 200 _CE_TO_EI(ce), _TO_STATE(ps), &d->u.generic.state); 201 break; 202 default: 203 ret = EOPNOTSUPP; 204 } 205 206 return ret; 207 } 208