5e53a4f90f
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
382 lines
9.0 KiB
C
382 lines
9.0 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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* SPDX-License-Identifier: BSD-2-Clause
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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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