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1243a98e38
http://pubs.opengroup.org/onlinepubs/9699919799/functions/iconv.html Adjust all code that calls iconv. PR: 199099 Exp-run by: antoine MFC after: 2 weeks
380 lines
8.9 KiB
C
380 lines
8.9 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: citrus_euctw.c,v 1.11 2008/06/14 16:01:07 tnozaki Exp $ */
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/*-
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* Copyright (c)2002 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*-
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* Copyright (c)1999 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Citrus: xpg4dl/FreeBSD/lib/libc/locale/euctw.c,v 1.13 2001/06/21 01:51:44 yamt Exp $
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <errno.h>
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#include <limits.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include "citrus_namespace.h"
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#include "citrus_types.h"
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#include "citrus_module.h"
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#include "citrus_stdenc.h"
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#include "citrus_euctw.h"
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/* ----------------------------------------------------------------------
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* private stuffs used by templates
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*/
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typedef struct {
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int chlen;
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char ch[4];
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} _EUCTWState;
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typedef struct {
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int dummy;
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} _EUCTWEncodingInfo;
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#define _SS2 0x008e
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#define _SS3 0x008f
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#define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
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#define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
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#define _FUNCNAME(m) _citrus_EUCTW_##m
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#define _ENCODING_INFO _EUCTWEncodingInfo
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#define _ENCODING_STATE _EUCTWState
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#define _ENCODING_MB_CUR_MAX(_ei_) 4
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#define _ENCODING_IS_STATE_DEPENDENT 0
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#define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
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static __inline int
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_citrus_EUCTW_cs(unsigned int c)
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{
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c &= 0xff;
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return ((c & 0x80) ? (c == _SS2 ? 2 : 1) : 0);
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}
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static __inline int
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_citrus_EUCTW_count(int cs)
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{
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switch (cs) {
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case 0:
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/*FALLTHROUGH*/
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case 1:
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/*FALLTHROUGH*/
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case 2:
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return (1 << cs);
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case 3:
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abort();
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/*NOTREACHED*/
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}
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return (0);
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}
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static __inline void
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/*ARGSUSED*/
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_citrus_EUCTW_init_state(_EUCTWEncodingInfo * __restrict ei __unused,
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_EUCTWState * __restrict s)
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{
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memset(s, 0, sizeof(*s));
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}
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#if 0
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static __inline void
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/*ARGSUSED*/
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_citrus_EUCTW_pack_state(_EUCTWEncodingInfo * __restrict ei __unused,
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void * __restrict pspriv, const _EUCTWState * __restrict s)
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{
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memcpy(pspriv, (const void *)s, sizeof(*s));
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}
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static __inline void
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/*ARGSUSED*/
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_citrus_EUCTW_unpack_state(_EUCTWEncodingInfo * __restrict ei __unused,
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_EUCTWState * __restrict s, const void * __restrict pspriv)
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{
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memcpy((void *)s, pspriv, sizeof(*s));
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}
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#endif
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static int
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/*ARGSUSED*/
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_citrus_EUCTW_encoding_module_init(_EUCTWEncodingInfo * __restrict ei,
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const void * __restrict var __unused, size_t lenvar __unused)
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{
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memset((void *)ei, 0, sizeof(*ei));
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return (0);
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}
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static void
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/*ARGSUSED*/
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_citrus_EUCTW_encoding_module_uninit(_EUCTWEncodingInfo *ei __unused)
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{
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}
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static int
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_citrus_EUCTW_mbrtowc_priv(_EUCTWEncodingInfo * __restrict ei,
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wchar_t * __restrict pwc, char ** __restrict s,
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size_t n, _EUCTWState * __restrict psenc, size_t * __restrict nresult)
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{
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char *s0;
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wchar_t wchar;
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int c, chlenbak, cs;
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s0 = *s;
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if (s0 == NULL) {
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_citrus_EUCTW_init_state(ei, psenc);
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*nresult = 0; /* state independent */
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return (0);
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}
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chlenbak = psenc->chlen;
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/* make sure we have the first byte in the buffer */
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switch (psenc->chlen) {
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case 0:
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if (n < 1)
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goto restart;
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psenc->ch[0] = *s0++;
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psenc->chlen = 1;
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n--;
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break;
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case 1:
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case 2:
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break;
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default:
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/* illgeal state */
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goto ilseq;
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}
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c = _citrus_EUCTW_count(cs = _citrus_EUCTW_cs(psenc->ch[0] & 0xff));
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if (c == 0)
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goto ilseq;
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while (psenc->chlen < c) {
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if (n < 1)
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goto ilseq;
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psenc->ch[psenc->chlen] = *s0++;
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psenc->chlen++;
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n--;
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}
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wchar = 0;
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switch (cs) {
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case 0:
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if (psenc->ch[0] & 0x80)
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goto ilseq;
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wchar = psenc->ch[0] & 0xff;
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break;
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case 1:
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if (!(psenc->ch[0] & 0x80) || !(psenc->ch[1] & 0x80))
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goto ilseq;
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wchar = ((psenc->ch[0] & 0xff) << 8) | (psenc->ch[1] & 0xff);
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wchar |= 'G' << 24;
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break;
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case 2:
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if ((unsigned char)psenc->ch[1] < 0xa1 ||
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0xa7 < (unsigned char)psenc->ch[1])
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goto ilseq;
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if (!(psenc->ch[2] & 0x80) || !(psenc->ch[3] & 0x80))
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goto ilseq;
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wchar = ((psenc->ch[2] & 0xff) << 8) | (psenc->ch[3] & 0xff);
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wchar |= ('G' + psenc->ch[1] - 0xa1) << 24;
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break;
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default:
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goto ilseq;
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}
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*s = s0;
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psenc->chlen = 0;
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if (pwc)
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*pwc = wchar;
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*nresult = wchar ? c - chlenbak : 0;
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return (0);
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ilseq:
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psenc->chlen = 0;
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*nresult = (size_t)-1;
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return (EILSEQ);
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restart:
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*s = s0;
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*nresult = (size_t)-1;
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return (0);
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}
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static int
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_citrus_EUCTW_wcrtomb_priv(_EUCTWEncodingInfo * __restrict ei __unused,
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char * __restrict s, size_t n, wchar_t wc,
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_EUCTWState * __restrict psenc __unused, size_t * __restrict nresult)
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{
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wchar_t cs, v;
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int clen, i, ret;
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size_t len;
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cs = wc & 0x7f000080;
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clen = 1;
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if (wc & 0x00007f00)
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clen = 2;
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if ((wc & 0x007f0000) && !(wc & 0x00800000))
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clen = 3;
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if (clen == 1 && cs == 0x00000000) {
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/* ASCII */
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len = 1;
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if (n < len) {
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ret = E2BIG;
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goto err;
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}
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v = wc & 0x0000007f;
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} else if (clen == 2 && cs == ('G' << 24)) {
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/* CNS-11643-1 */
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len = 2;
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if (n < len) {
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ret = E2BIG;
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goto err;
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}
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v = wc & 0x00007f7f;
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v |= 0x00008080;
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} else if (clen == 2 && 'H' <= (cs >> 24) && (cs >> 24) <= 'M') {
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/* CNS-11643-[2-7] */
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len = 4;
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if (n < len) {
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ret = E2BIG;
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goto err;
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}
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*s++ = _SS2;
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*s++ = (cs >> 24) - 'H' + 0xa2;
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v = wc & 0x00007f7f;
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v |= 0x00008080;
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} else {
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ret = EILSEQ;
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goto err;
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}
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i = clen;
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while (i-- > 0)
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*s++ = (v >> (i << 3)) & 0xff;
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*nresult = len;
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return (0);
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err:
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*nresult = (size_t)-1;
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return (ret);
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}
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static __inline int
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/*ARGSUSED*/
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_citrus_EUCTW_stdenc_wctocs(_EUCTWEncodingInfo * __restrict ei __unused,
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_csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
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{
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*csid = (_csid_t)(wc >> 24) & 0xFF;
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*idx = (_index_t)(wc & 0x7F7F);
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return (0);
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}
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static __inline int
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/*ARGSUSED*/
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_citrus_EUCTW_stdenc_cstowc(_EUCTWEncodingInfo * __restrict ei __unused,
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wchar_t * __restrict wc, _csid_t csid, _index_t idx)
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{
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if (csid == 0) {
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if ((idx & ~0x7F) != 0)
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return (EINVAL);
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*wc = (wchar_t)idx;
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} else {
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if (csid < 'G' || csid > 'M' || (idx & ~0x7F7F) != 0)
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return (EINVAL);
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*wc = (wchar_t)idx | ((wchar_t)csid << 24);
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}
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return (0);
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}
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static __inline int
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/*ARGSUSED*/
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_citrus_EUCTW_stdenc_get_state_desc_generic(_EUCTWEncodingInfo * __restrict ei __unused,
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_EUCTWState * __restrict psenc, int * __restrict rstate)
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{
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*rstate = (psenc->chlen == 0) ? _STDENC_SDGEN_INITIAL :
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_STDENC_SDGEN_INCOMPLETE_CHAR;
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return (0);
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}
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/* ----------------------------------------------------------------------
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* public interface for stdenc
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*/
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_CITRUS_STDENC_DECLS(EUCTW);
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_CITRUS_STDENC_DEF_OPS(EUCTW);
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#include "citrus_stdenc_template.h"
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