1219019Sgabor/* $FreeBSD$ */ 2219019Sgabor/* $NetBSD: citrus_utf7.c,v 1.5 2006/08/23 12:57:24 tnozaki Exp $ */ 3219019Sgabor 4219019Sgabor/*- 5219019Sgabor * Copyright (c)2004, 2005 Citrus Project, 6219019Sgabor * All rights reserved. 7219019Sgabor * 8219019Sgabor * Redistribution and use in source and binary forms, with or without 9219019Sgabor * modification, are permitted provided that the following conditions 10219019Sgabor * are met: 11219019Sgabor * 1. Redistributions of source code must retain the above copyright 12219019Sgabor * notice, this list of conditions and the following disclaimer. 13219019Sgabor * 2. Redistributions in binary form must reproduce the above copyright 14219019Sgabor * notice, this list of conditions and the following disclaimer in the 15219019Sgabor * documentation and/or other materials provided with the distribution. 16219019Sgabor * 17219019Sgabor * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18219019Sgabor * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19219019Sgabor * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20219019Sgabor * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21219019Sgabor * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22219019Sgabor * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23219019Sgabor * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24219019Sgabor * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25219019Sgabor * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26219019Sgabor * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27219019Sgabor * SUCH DAMAGE. 28219019Sgabor * 29219019Sgabor */ 30219019Sgabor 31219019Sgabor#include <sys/cdefs.h> 32219019Sgabor 33219019Sgabor#include <assert.h> 34219019Sgabor#include <errno.h> 35219019Sgabor#include <limits.h> 36219019Sgabor#include <stdio.h> 37219019Sgabor#include <stdint.h> 38219019Sgabor#include <stdlib.h> 39219019Sgabor#include <string.h> 40219019Sgabor#include <wchar.h> 41219019Sgabor 42219019Sgabor#include "citrus_namespace.h" 43219019Sgabor#include "citrus_types.h" 44219019Sgabor#include "citrus_module.h" 45219019Sgabor#include "citrus_stdenc.h" 46219019Sgabor#include "citrus_utf7.h" 47219019Sgabor 48219019Sgabor/* ---------------------------------------------------------------------- 49219019Sgabor * private stuffs used by templates 50219019Sgabor */ 51219019Sgabor 52219019Sgabor#define EI_MASK UINT16_C(0xff) 53219019Sgabor#define EI_DIRECT UINT16_C(0x100) 54219019Sgabor#define EI_OPTION UINT16_C(0x200) 55219019Sgabor#define EI_SPACE UINT16_C(0x400) 56219019Sgabor 57219019Sgabortypedef struct { 58219019Sgabor uint16_t cell[0x80]; 59219019Sgabor} _UTF7EncodingInfo; 60219019Sgabor 61219019Sgabortypedef struct { 62219019Sgabor unsigned int 63219019Sgabor mode: 1, /* whether base64 mode */ 64219019Sgabor bits: 4, /* need to hold 0 - 15 */ 65219019Sgabor cache: 22, /* 22 = BASE64_BIT + UTF16_BIT */ 66219019Sgabor surrogate: 1; /* whether surrogate pair or not */ 67219019Sgabor int chlen; 68219019Sgabor char ch[4]; /* BASE64_IN, 3 * 6 = 18, most closed to UTF16_BIT */ 69219019Sgabor} _UTF7State; 70219019Sgabor 71219019Sgabor#define _CEI_TO_EI(_cei_) (&(_cei_)->ei) 72219019Sgabor#define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_ 73219019Sgabor 74219019Sgabor#define _FUNCNAME(m) _citrus_UTF7_##m 75219019Sgabor#define _ENCODING_INFO _UTF7EncodingInfo 76219019Sgabor#define _ENCODING_STATE _UTF7State 77219019Sgabor#define _ENCODING_MB_CUR_MAX(_ei_) 4 78219019Sgabor#define _ENCODING_IS_STATE_DEPENDENT 1 79219019Sgabor#define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0 80219019Sgabor 81219019Sgaborstatic __inline void 82219019Sgabor/*ARGSUSED*/ 83219019Sgabor_citrus_UTF7_init_state(_UTF7EncodingInfo * __restrict ei __unused, 84219019Sgabor _UTF7State * __restrict s) 85219019Sgabor{ 86219019Sgabor 87219019Sgabor memset((void *)s, 0, sizeof(*s)); 88219019Sgabor} 89219019Sgabor 90260264Sdim#if 0 91219019Sgaborstatic __inline void 92219019Sgabor/*ARGSUSED*/ 93219019Sgabor_citrus_UTF7_pack_state(_UTF7EncodingInfo * __restrict ei __unused, 94219019Sgabor void *__restrict pspriv, const _UTF7State * __restrict s) 95219019Sgabor{ 96219019Sgabor 97219019Sgabor memcpy(pspriv, (const void *)s, sizeof(*s)); 98219019Sgabor} 99219019Sgabor 100219019Sgaborstatic __inline void 101219019Sgabor/*ARGSUSED*/ 102219019Sgabor_citrus_UTF7_unpack_state(_UTF7EncodingInfo * __restrict ei __unused, 103219019Sgabor _UTF7State * __restrict s, const void * __restrict pspriv) 104219019Sgabor{ 105219019Sgabor 106219019Sgabor memcpy((void *)s, pspriv, sizeof(*s)); 107219019Sgabor} 108260264Sdim#endif 109219019Sgabor 110219019Sgaborstatic const char base64[] = 111219019Sgabor "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 112219019Sgabor "abcdefghijklmnopqrstuvwxyz" 113219019Sgabor "0123456789+/"; 114219019Sgabor 115219019Sgaborstatic const char direct[] = 116219019Sgabor "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 117219019Sgabor "abcdefghijklmnopqrstuvwxyz" 118219019Sgabor "0123456789(),-./:?"; 119219019Sgabor 120219019Sgaborstatic const char option[] = "!\"#$%&';<=>@[]^_`{|}"; 121219019Sgaborstatic const char spaces[] = " \t\r\n"; 122219019Sgabor 123219019Sgabor#define BASE64_BIT 6 124219019Sgabor#define UTF16_BIT 16 125219019Sgabor 126219019Sgabor#define BASE64_MAX 0x3f 127219019Sgabor#define UTF16_MAX UINT16_C(0xffff) 128219019Sgabor#define UTF32_MAX UINT32_C(0x10ffff) 129219019Sgabor 130219019Sgabor#define BASE64_IN '+' 131219019Sgabor#define BASE64_OUT '-' 132219019Sgabor 133219019Sgabor#define SHIFT7BIT(c) ((c) >> 7) 134219019Sgabor#define ISSPECIAL(c) ((c) == '\0' || (c) == BASE64_IN) 135219019Sgabor 136219019Sgabor#define FINDLEN(ei, c) \ 137219019Sgabor (SHIFT7BIT((c)) ? -1 : (((ei)->cell[(c)] & EI_MASK) - 1)) 138219019Sgabor 139219019Sgabor#define ISDIRECT(ei, c) (!SHIFT7BIT((c)) && (ISSPECIAL((c)) || \ 140219019Sgabor ei->cell[(c)] & (EI_DIRECT | EI_OPTION | EI_SPACE))) 141219019Sgabor 142219019Sgabor#define ISSAFE(ei, c) (!SHIFT7BIT((c)) && (ISSPECIAL((c)) || \ 143219019Sgabor (c < 0x80 && ei->cell[(c)] & (EI_DIRECT | EI_SPACE)))) 144219019Sgabor 145219019Sgabor/* surrogate pair */ 146219019Sgabor#define SRG_BASE UINT32_C(0x10000) 147219019Sgabor#define HISRG_MIN UINT16_C(0xd800) 148219019Sgabor#define HISRG_MAX UINT16_C(0xdbff) 149219019Sgabor#define LOSRG_MIN UINT16_C(0xdc00) 150219019Sgabor#define LOSRG_MAX UINT16_C(0xdfff) 151219019Sgabor 152219019Sgaborstatic int 153219019Sgabor_citrus_UTF7_mbtoutf16(_UTF7EncodingInfo * __restrict ei, 154219019Sgabor uint16_t * __restrict u16, char ** __restrict s, size_t n, 155219019Sgabor _UTF7State * __restrict psenc, size_t * __restrict nresult) 156219019Sgabor{ 157219019Sgabor _UTF7State sv; 158219019Sgabor char *s0; 159219019Sgabor int done, i, len; 160219019Sgabor 161219019Sgabor s0 = *s; 162219019Sgabor sv = *psenc; 163219019Sgabor 164219019Sgabor for (i = 0, done = 0; done == 0; i++) { 165219019Sgabor if (i == psenc->chlen) { 166219019Sgabor if (n-- < 1) { 167219019Sgabor *nresult = (size_t)-2; 168219019Sgabor *s = s0; 169219019Sgabor sv.chlen = psenc->chlen; 170219019Sgabor *psenc = sv; 171219019Sgabor return (0); 172219019Sgabor } 173219019Sgabor psenc->ch[psenc->chlen++] = *s0++; 174219019Sgabor } 175219019Sgabor if (SHIFT7BIT((int)psenc->ch[i])) 176219019Sgabor goto ilseq; 177219019Sgabor if (!psenc->mode) { 178219019Sgabor if (psenc->bits > 0 || psenc->cache > 0) 179219019Sgabor return (EINVAL); 180219019Sgabor if (psenc->ch[i] == BASE64_IN) 181219019Sgabor psenc->mode = 1; 182219019Sgabor else { 183219019Sgabor if (!ISDIRECT(ei, (int)psenc->ch[i])) 184219019Sgabor goto ilseq; 185219019Sgabor *u16 = (uint16_t)psenc->ch[i]; 186219019Sgabor done = 1; 187219019Sgabor continue; 188219019Sgabor } 189219019Sgabor } else { 190219019Sgabor if (psenc->ch[i] == BASE64_OUT && psenc->cache == 0) { 191219019Sgabor psenc->mode = 0; 192219019Sgabor *u16 = (uint16_t)BASE64_IN; 193219019Sgabor done = 1; 194219019Sgabor continue; 195219019Sgabor } 196219019Sgabor len = FINDLEN(ei, (int)psenc->ch[i]); 197219019Sgabor if (len < 0) { 198219019Sgabor if (psenc->bits >= BASE64_BIT) 199219019Sgabor return (EINVAL); 200219019Sgabor psenc->mode = 0; 201219019Sgabor psenc->bits = psenc->cache = 0; 202219019Sgabor if (psenc->ch[i] != BASE64_OUT) { 203219019Sgabor if (!ISDIRECT(ei, (int)psenc->ch[i])) 204219019Sgabor goto ilseq; 205219019Sgabor *u16 = (uint16_t)psenc->ch[i]; 206219019Sgabor done = 1; 207219019Sgabor } 208219019Sgabor } else { 209219019Sgabor psenc->cache = 210219019Sgabor (psenc->cache << BASE64_BIT) | len; 211219019Sgabor switch (psenc->bits) { 212219019Sgabor case 0: case 2: case 4: case 6: case 8: 213219019Sgabor psenc->bits += BASE64_BIT; 214219019Sgabor break; 215219019Sgabor case 10: case 12: case 14: 216219019Sgabor psenc->bits -= (UTF16_BIT - BASE64_BIT); 217219019Sgabor *u16 = (psenc->cache >> psenc->bits) & 218219019Sgabor UTF16_MAX; 219219019Sgabor done = 1; 220219019Sgabor break; 221219019Sgabor default: 222219019Sgabor return (EINVAL); 223219019Sgabor } 224219019Sgabor } 225219019Sgabor } 226219019Sgabor } 227219019Sgabor 228219019Sgabor if (psenc->chlen > i) 229219019Sgabor return (EINVAL); 230219019Sgabor psenc->chlen = 0; 231219019Sgabor *nresult = (size_t)((*u16 == 0) ? 0 : s0 - *s); 232219019Sgabor *s = s0; 233219019Sgabor 234219019Sgabor return (0); 235219019Sgabor 236219019Sgaborilseq: 237219019Sgabor *nresult = (size_t)-1; 238219019Sgabor return (EILSEQ); 239219019Sgabor} 240219019Sgabor 241219019Sgaborstatic int 242219019Sgabor_citrus_UTF7_mbrtowc_priv(_UTF7EncodingInfo * __restrict ei, 243219019Sgabor wchar_t * __restrict pwc, char ** __restrict s, size_t n, 244219019Sgabor _UTF7State * __restrict psenc, size_t * __restrict nresult) 245219019Sgabor{ 246219019Sgabor char *s0; 247219019Sgabor uint32_t u32; 248219019Sgabor uint16_t hi, lo; 249219019Sgabor size_t nr, siz; 250219019Sgabor int err; 251219019Sgabor 252219019Sgabor if (*s == NULL) { 253219019Sgabor _citrus_UTF7_init_state(ei, psenc); 254219019Sgabor *nresult = (size_t)_ENCODING_IS_STATE_DEPENDENT; 255219019Sgabor return (0); 256219019Sgabor } 257219019Sgabor s0 = *s; 258219019Sgabor if (psenc->surrogate) { 259219019Sgabor hi = (psenc->cache >> 2) & UTF16_MAX; 260219019Sgabor if (hi < HISRG_MIN || hi > HISRG_MAX) 261219019Sgabor return (EINVAL); 262219019Sgabor siz = 0; 263219019Sgabor } else { 264219019Sgabor err = _citrus_UTF7_mbtoutf16(ei, &hi, &s0, n, psenc, &nr); 265219019Sgabor if (nr == (size_t)-1 || nr == (size_t)-2) { 266219019Sgabor *nresult = nr; 267219019Sgabor return (err); 268219019Sgabor } 269219019Sgabor if (err != 0) 270219019Sgabor return (err); 271219019Sgabor n -= nr; 272219019Sgabor siz = nr; 273219019Sgabor if (hi < HISRG_MIN || hi > HISRG_MAX) { 274219019Sgabor u32 = (uint32_t)hi; 275219019Sgabor goto done; 276219019Sgabor } 277219019Sgabor psenc->surrogate = 1; 278219019Sgabor } 279219019Sgabor err = _citrus_UTF7_mbtoutf16(ei, &lo, &s0, n, psenc, &nr); 280219019Sgabor if (nr == (size_t)-1 || nr == (size_t)-2) { 281219019Sgabor *nresult = nr; 282219019Sgabor return (err); 283219019Sgabor } 284219019Sgabor if (err != 0) 285219019Sgabor return (err); 286219019Sgabor hi -= HISRG_MIN; 287219019Sgabor lo -= LOSRG_MIN; 288219019Sgabor u32 = (hi << 10 | lo) + SRG_BASE; 289219019Sgabor siz += nr; 290219019Sgabordone: 291219019Sgabor *s = s0; 292219019Sgabor if (pwc != NULL) 293219019Sgabor *pwc = (wchar_t)u32; 294219019Sgabor if (u32 == (uint32_t)0) { 295219019Sgabor *nresult = (size_t)0; 296219019Sgabor _citrus_UTF7_init_state(ei, psenc); 297219019Sgabor } else { 298219019Sgabor *nresult = siz; 299219019Sgabor psenc->surrogate = 0; 300219019Sgabor } 301219019Sgabor return (err); 302219019Sgabor} 303219019Sgabor 304219019Sgaborstatic int 305219019Sgabor_citrus_UTF7_utf16tomb(_UTF7EncodingInfo * __restrict ei, 306219019Sgabor char * __restrict s, size_t n __unused, uint16_t u16, 307219019Sgabor _UTF7State * __restrict psenc, size_t * __restrict nresult) 308219019Sgabor{ 309219019Sgabor int bits, i; 310219019Sgabor 311219019Sgabor if (psenc->chlen != 0 || psenc->bits > BASE64_BIT) 312219019Sgabor return (EINVAL); 313219019Sgabor 314219019Sgabor if (ISSAFE(ei, u16)) { 315219019Sgabor if (psenc->mode) { 316219019Sgabor if (psenc->bits > 0) { 317219019Sgabor bits = BASE64_BIT - psenc->bits; 318219019Sgabor i = (psenc->cache << bits) & BASE64_MAX; 319219019Sgabor psenc->ch[psenc->chlen++] = base64[i]; 320219019Sgabor psenc->bits = psenc->cache = 0; 321219019Sgabor } 322219019Sgabor if (u16 == BASE64_OUT || FINDLEN(ei, u16) >= 0) 323219019Sgabor psenc->ch[psenc->chlen++] = BASE64_OUT; 324219019Sgabor psenc->mode = 0; 325219019Sgabor } 326219019Sgabor if (psenc->bits != 0) 327219019Sgabor return (EINVAL); 328219019Sgabor psenc->ch[psenc->chlen++] = (char)u16; 329219019Sgabor if (u16 == BASE64_IN) 330219019Sgabor psenc->ch[psenc->chlen++] = BASE64_OUT; 331219019Sgabor } else { 332219019Sgabor if (!psenc->mode) { 333219019Sgabor if (psenc->bits > 0) 334219019Sgabor return (EINVAL); 335219019Sgabor psenc->ch[psenc->chlen++] = BASE64_IN; 336219019Sgabor psenc->mode = 1; 337219019Sgabor } 338219019Sgabor psenc->cache = (psenc->cache << UTF16_BIT) | u16; 339219019Sgabor bits = UTF16_BIT + psenc->bits; 340219019Sgabor psenc->bits = bits % BASE64_BIT; 341219019Sgabor while ((bits -= BASE64_BIT) >= 0) { 342219019Sgabor i = (psenc->cache >> bits) & BASE64_MAX; 343219019Sgabor psenc->ch[psenc->chlen++] = base64[i]; 344219019Sgabor } 345219019Sgabor } 346219019Sgabor memcpy(s, psenc->ch, psenc->chlen); 347219019Sgabor *nresult = psenc->chlen; 348219019Sgabor psenc->chlen = 0; 349219019Sgabor 350219019Sgabor return (0); 351219019Sgabor} 352219019Sgabor 353219019Sgaborstatic int 354219019Sgabor_citrus_UTF7_wcrtomb_priv(_UTF7EncodingInfo * __restrict ei, 355219019Sgabor char * __restrict s, size_t n, wchar_t wchar, 356219019Sgabor _UTF7State * __restrict psenc, size_t * __restrict nresult) 357219019Sgabor{ 358219019Sgabor uint32_t u32; 359219019Sgabor uint16_t u16[2]; 360219019Sgabor int err, i, len; 361219019Sgabor size_t nr, siz; 362219019Sgabor 363219019Sgabor u32 = (uint32_t)wchar; 364219019Sgabor if (u32 <= UTF16_MAX) { 365219019Sgabor u16[0] = (uint16_t)u32; 366219019Sgabor len = 1; 367219019Sgabor } else if (u32 <= UTF32_MAX) { 368219019Sgabor u32 -= SRG_BASE; 369219019Sgabor u16[0] = (u32 >> 10) + HISRG_MIN; 370219019Sgabor u16[1] = ((uint16_t)(u32 & UINT32_C(0x3ff))) + LOSRG_MIN; 371219019Sgabor len = 2; 372219019Sgabor } else { 373219019Sgabor *nresult = (size_t)-1; 374219019Sgabor return (EILSEQ); 375219019Sgabor } 376219019Sgabor siz = 0; 377219019Sgabor for (i = 0; i < len; ++i) { 378219019Sgabor err = _citrus_UTF7_utf16tomb(ei, s, n, u16[i], psenc, &nr); 379219019Sgabor if (err != 0) 380219019Sgabor return (err); /* XXX: state has been modified */ 381219019Sgabor s += nr; 382219019Sgabor n -= nr; 383219019Sgabor siz += nr; 384219019Sgabor } 385219019Sgabor *nresult = siz; 386219019Sgabor 387219019Sgabor return (0); 388219019Sgabor} 389219019Sgabor 390219019Sgaborstatic int 391219019Sgabor/* ARGSUSED */ 392219019Sgabor_citrus_UTF7_put_state_reset(_UTF7EncodingInfo * __restrict ei __unused, 393219019Sgabor char * __restrict s, size_t n, _UTF7State * __restrict psenc, 394219019Sgabor size_t * __restrict nresult) 395219019Sgabor{ 396219019Sgabor int bits, pos; 397219019Sgabor 398219019Sgabor if (psenc->chlen != 0 || psenc->bits > BASE64_BIT || psenc->surrogate) 399219019Sgabor return (EINVAL); 400219019Sgabor 401219019Sgabor if (psenc->mode) { 402219019Sgabor if (psenc->bits > 0) { 403219019Sgabor if (n-- < 1) 404219019Sgabor return (E2BIG); 405219019Sgabor bits = BASE64_BIT - psenc->bits; 406219019Sgabor pos = (psenc->cache << bits) & BASE64_MAX; 407219019Sgabor psenc->ch[psenc->chlen++] = base64[pos]; 408219019Sgabor psenc->ch[psenc->chlen++] = BASE64_OUT; 409219019Sgabor psenc->bits = psenc->cache = 0; 410219019Sgabor } 411219019Sgabor psenc->mode = 0; 412219019Sgabor } 413219019Sgabor if (psenc->bits != 0) 414219019Sgabor return (EINVAL); 415219019Sgabor if (n-- < 1) 416219019Sgabor return (E2BIG); 417219019Sgabor 418219019Sgabor *nresult = (size_t)psenc->chlen; 419219019Sgabor if (psenc->chlen > 0) { 420219019Sgabor memcpy(s, psenc->ch, psenc->chlen); 421219019Sgabor psenc->chlen = 0; 422219019Sgabor } 423219019Sgabor 424219019Sgabor return (0); 425219019Sgabor} 426219019Sgabor 427219019Sgaborstatic __inline int 428219019Sgabor/*ARGSUSED*/ 429219019Sgabor_citrus_UTF7_stdenc_wctocs(_UTF7EncodingInfo * __restrict ei __unused, 430219019Sgabor _csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc) 431219019Sgabor{ 432219019Sgabor 433219019Sgabor *csid = 0; 434219019Sgabor *idx = (_index_t)wc; 435219019Sgabor 436219019Sgabor return (0); 437219019Sgabor} 438219019Sgabor 439219019Sgaborstatic __inline int 440219019Sgabor/*ARGSUSED*/ 441219019Sgabor_citrus_UTF7_stdenc_cstowc(_UTF7EncodingInfo * __restrict ei __unused, 442219019Sgabor wchar_t * __restrict wc, _csid_t csid, _index_t idx) 443219019Sgabor{ 444219019Sgabor 445219019Sgabor if (csid != 0) 446219019Sgabor return (EILSEQ); 447219019Sgabor *wc = (wchar_t)idx; 448219019Sgabor 449219019Sgabor return (0); 450219019Sgabor} 451219019Sgabor 452219019Sgaborstatic __inline int 453219019Sgabor/*ARGSUSED*/ 454219019Sgabor_citrus_UTF7_stdenc_get_state_desc_generic(_UTF7EncodingInfo * __restrict ei __unused, 455219019Sgabor _UTF7State * __restrict psenc, int * __restrict rstate) 456219019Sgabor{ 457219019Sgabor 458219019Sgabor *rstate = (psenc->chlen == 0) ? _STDENC_SDGEN_INITIAL : 459219019Sgabor _STDENC_SDGEN_INCOMPLETE_CHAR; 460219019Sgabor return (0); 461219019Sgabor} 462219019Sgabor 463219019Sgaborstatic void 464219019Sgabor/*ARGSUSED*/ 465219019Sgabor_citrus_UTF7_encoding_module_uninit(_UTF7EncodingInfo *ei __unused) 466219019Sgabor{ 467219019Sgabor 468219019Sgabor /* ei seems to be unused */ 469219019Sgabor} 470219019Sgabor 471219019Sgaborstatic int 472219019Sgabor/*ARGSUSED*/ 473219019Sgabor_citrus_UTF7_encoding_module_init(_UTF7EncodingInfo * __restrict ei, 474219019Sgabor const void * __restrict var __unused, size_t lenvar __unused) 475219019Sgabor{ 476219019Sgabor const char *s; 477219019Sgabor 478219019Sgabor memset(ei, 0, sizeof(*ei)); 479219019Sgabor 480219019Sgabor#define FILL(str, flag) \ 481219019Sgabordo { \ 482219019Sgabor for (s = str; *s != '\0'; s++) \ 483219019Sgabor ei->cell[*s & 0x7f] |= flag; \ 484219019Sgabor} while (/*CONSTCOND*/0) 485219019Sgabor 486219019Sgabor FILL(base64, (s - base64) + 1); 487219019Sgabor FILL(direct, EI_DIRECT); 488219019Sgabor FILL(option, EI_OPTION); 489219019Sgabor FILL(spaces, EI_SPACE); 490219019Sgabor 491219019Sgabor return (0); 492219019Sgabor} 493219019Sgabor 494219019Sgabor/* ---------------------------------------------------------------------- 495219019Sgabor * public interface for stdenc 496219019Sgabor */ 497219019Sgabor 498219019Sgabor_CITRUS_STDENC_DECLS(UTF7); 499219019Sgabor_CITRUS_STDENC_DEF_OPS(UTF7); 500219019Sgabor 501219019Sgabor#include "citrus_stdenc_template.h" 502