2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
442 lines
9.6 KiB
C
442 lines
9.6 KiB
C
/* $NetBSD: citrus_dechanyu.c,v 1.3 2008/06/14 16:01:07 tnozaki Exp $ */
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/*-
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* Copyright (c)2007 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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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: citrus_dechanyu.c,v 1.3 2008/06/14 16:01:07 tnozaki Exp $");
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#endif /* LIBC_SCCS and not lint */
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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 <string.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <wchar.h>
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#include <limits.h>
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#include "citrus_namespace.h"
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#include "citrus_types.h"
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#include "citrus_bcs.h"
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#include "citrus_module.h"
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#include "citrus_ctype.h"
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#include "citrus_stdenc.h"
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#include "citrus_dechanyu.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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} _DECHanyuState;
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typedef struct {
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int dummy;
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} _DECHanyuEncodingInfo;
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typedef struct {
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_DECHanyuEncodingInfo ei;
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struct {
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/* for future multi-locale facility */
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_DECHanyuState s_mblen;
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_DECHanyuState s_mbrlen;
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_DECHanyuState s_mbrtowc;
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_DECHanyuState s_mbtowc;
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_DECHanyuState s_mbsrtowcs;
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_DECHanyuState s_wcrtomb;
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_DECHanyuState s_wcsrtombs;
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_DECHanyuState s_wctomb;
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} states;
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} _DECHanyuCTypeInfo;
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#define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
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#define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.__CONCAT(s_,_func_)
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#define _FUNCNAME(m) __CONCAT(_citrus_DECHanyu_,m)
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#define _ENCODING_INFO _DECHanyuEncodingInfo
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#define _CTYPE_INFO _DECHanyuCTypeInfo
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#define _ENCODING_STATE _DECHanyuState
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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 void
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/*ARGSUSED*/
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_citrus_DECHanyu_init_state(_DECHanyuEncodingInfo * __restrict ei,
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_DECHanyuState * __restrict psenc)
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{
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/* ei may be null */
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_DIAGASSERT(psenc != NULL);
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psenc->chlen = 0;
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}
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static __inline void
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/*ARGSUSED*/
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_citrus_DECHanyu_pack_state(_DECHanyuEncodingInfo * __restrict ei,
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void * __restrict pspriv,
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const _DECHanyuState * __restrict psenc)
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{
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/* ei may be null */
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_DIAGASSERT(pspriv != NULL);
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_DIAGASSERT(psenc != NULL);
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memcpy(pspriv, (const void *)psenc, sizeof(*psenc));
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}
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static __inline void
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/*ARGSUSED*/
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_citrus_DECHanyu_unpack_state(_DECHanyuEncodingInfo * __restrict ei,
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_DECHanyuState * __restrict psenc,
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const void * __restrict pspriv)
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{
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/* ei may be null */
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_DIAGASSERT(psenc != NULL);
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_DIAGASSERT(pspriv != NULL);
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memcpy((void *)psenc, pspriv, sizeof(*psenc));
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}
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static void
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/*ARGSUSED*/
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_citrus_DECHanyu_encoding_module_uninit(_DECHanyuEncodingInfo *ei)
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{
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/* ei may be null */
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}
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static int
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/*ARGSUSED*/
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_citrus_DECHanyu_encoding_module_init(_DECHanyuEncodingInfo * __restrict ei,
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const void * __restrict var, size_t lenvar)
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{
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/* ei may be null */
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return 0;
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}
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static __inline int
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is_singlebyte(int c)
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{
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return c <= 0x7F;
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}
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static __inline int
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is_leadbyte(int c)
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{
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return c >= 0xA1 && c <= 0xFE;
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}
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static __inline int
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is_trailbyte(int c)
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{
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c &= ~0x80;
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return c >= 0x21 && c <= 0x7E;
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}
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static __inline int
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is_hanyu1(int c)
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{
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return c == 0xC2;
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}
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static __inline int
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is_hanyu2(int c)
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{
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return c == 0xCB;
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}
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#define HANYUBIT 0xC2CB0000
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static __inline int
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is_94charset(int c)
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{
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return c >= 0x21 && c <= 0x7E;
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}
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static int
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/*ARGSUSED*/
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_citrus_DECHanyu_mbrtowc_priv(_DECHanyuEncodingInfo * __restrict ei,
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wchar_t * __restrict pwc, const char ** __restrict s, size_t n,
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_DECHanyuState * __restrict psenc, size_t * __restrict nresult)
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{
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const char *s0;
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int ch, i;
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wchar_t wc;
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/* ei may be unused */
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_DIAGASSERT(s != NULL);
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_DIAGASSERT(psenc != NULL);
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_DIAGASSERT(nresult != NULL);
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if (*s == NULL) {
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_citrus_DECHanyu_init_state(ei, psenc);
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*nresult = _ENCODING_IS_STATE_DEPENDENT;
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return 0;
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}
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s0 = *s;
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wc = (wchar_t)0;
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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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ch = *s0++ & 0xFF;
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if (is_singlebyte(ch) != 0) {
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if (pwc != NULL)
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*pwc = (wchar_t)ch;
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*nresult = (size_t)((ch == 0) ? 0 : 1);
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*s = s0;
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return 0;
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}
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if (is_leadbyte(ch) == 0)
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goto ilseq;
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psenc->ch[psenc->chlen++] = ch;
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break;
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case 1:
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ch = psenc->ch[0] & 0xFF;
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if (is_leadbyte(ch) == 0)
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return EINVAL;
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break;
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case 2: case 3:
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ch = psenc->ch[0] & 0xFF;
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if (is_hanyu1(ch) != 0) {
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ch = psenc->ch[1] & 0xFF;
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if (is_hanyu2(ch) != 0) {
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wc |= (wchar_t)HANYUBIT;
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break;
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}
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}
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/*FALLTHROUGH*/
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default:
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return EINVAL;
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}
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switch (psenc->chlen) {
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case 1:
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if (is_hanyu1(ch) != 0) {
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if (n-- < 1)
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goto restart;
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ch = *s0++ & 0xFF;
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if (is_hanyu2(ch) == 0)
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goto ilseq;
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psenc->ch[psenc->chlen++] = ch;
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wc |= (wchar_t)HANYUBIT;
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if (n-- < 1)
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goto restart;
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ch = *s0++ & 0xFF;
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if (is_leadbyte(ch) == 0)
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goto ilseq;
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psenc->ch[psenc->chlen++] = ch;
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}
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break;
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case 2:
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if (n-- < 1)
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goto restart;
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ch = *s0++ & 0xFF;
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if (is_leadbyte(ch) == 0)
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goto ilseq;
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psenc->ch[psenc->chlen++] = ch;
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break;
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case 3:
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ch = psenc->ch[2] & 0xFF;
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if (is_leadbyte(ch) == 0)
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return EINVAL;
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}
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if (n-- < 1)
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goto restart;
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wc |= (wchar_t)(ch << 8);
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ch = *s0++ & 0xFF;
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if (is_trailbyte(ch) == 0)
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goto ilseq;
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wc |= (wchar_t)ch;
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if (pwc != NULL)
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*pwc = wc;
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*nresult = (size_t)(s0 - *s);
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*s = s0;
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psenc->chlen = 0;
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return 0;
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restart:
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*nresult = (size_t)-2;
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*s = s0;
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return 0;
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ilseq:
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*nresult = (size_t)-1;
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return EILSEQ;
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}
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static int
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/*ARGSUSED*/
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_citrus_DECHanyu_wcrtomb_priv(_DECHanyuEncodingInfo * __restrict ei,
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char * __restrict s, size_t n, wchar_t wc,
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_DECHanyuState * __restrict psenc, size_t * __restrict nresult)
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{
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int ch;
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/* ei may be unused */
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_DIAGASSERT(s != NULL);
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_DIAGASSERT(psenc != NULL);
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_DIAGASSERT(nresult != NULL);
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if (psenc->chlen != 0)
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return EINVAL;
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/* XXX: assume wchar_t as int */
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if ((uint32_t)wc <= 0x7F) {
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ch = wc & 0xFF;
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} else {
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if ((uint32_t)wc > 0xFFFF) {
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if ((wc & ~0xFFFF) != HANYUBIT)
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goto ilseq;
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psenc->ch[psenc->chlen++] = (wc >> 24) & 0xFF;
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psenc->ch[psenc->chlen++] = (wc >> 16) & 0xFF;
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wc &= 0xFFFF;
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}
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ch = (wc >> 8) & 0xFF;
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if (!is_leadbyte(ch))
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goto ilseq;
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psenc->ch[psenc->chlen++] = ch;
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ch = wc & 0xFF;
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if (is_trailbyte(ch) == 0)
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goto ilseq;
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}
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psenc->ch[psenc->chlen++] = ch;
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if (n < psenc->chlen) {
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*nresult = (size_t)-1;
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return E2BIG;
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}
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memcpy(s, psenc->ch, psenc->chlen);
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*nresult = psenc->chlen;
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psenc->chlen = 0;
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return 0;
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ilseq:
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*nresult = (size_t)-1;
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return EILSEQ;
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}
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static __inline int
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/*ARGSUSED*/
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_citrus_DECHanyu_stdenc_wctocs(_DECHanyuEncodingInfo * __restrict ei,
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_csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
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{
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int plane;
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wchar_t mask;
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/* ei may be unused */
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_DIAGASSERT(csid != NULL);
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_DIAGASSERT(idx != NULL);
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plane = 0;
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mask = 0x7F;
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/* XXX: assume wchar_t as int */
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if ((uint32_t)wc > 0x7F) {
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if ((uint32_t)wc > 0xFFFF) {
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if ((wc & ~0xFFFF) != HANYUBIT)
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return EILSEQ;
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plane += 2;
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}
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if (is_leadbyte((wc >> 8) & 0xFF) == 0 ||
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is_trailbyte(wc & 0xFF) == 0)
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return EILSEQ;
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plane += (wc & 0x80) ? 1 : 2;
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mask |= 0x7F00;
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}
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*csid = plane;
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*idx = (_index_t)(wc & mask);
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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_DECHanyu_stdenc_cstowc(_DECHanyuEncodingInfo * __restrict ei,
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wchar_t * __restrict wc, _csid_t csid, _index_t idx)
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{
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/* ei may be unused */
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_DIAGASSERT(wc != NULL);
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if (csid == 0) {
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if (idx > 0x7F)
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return EILSEQ;
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} else if (csid <= 4) {
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if (is_94charset(idx >> 8) == 0)
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return EILSEQ;
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if (is_94charset(idx & 0xFF) == 0)
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return EILSEQ;
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if (csid % 2)
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idx |= 0x80;
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idx |= 0x8000;
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if (csid > 2)
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idx |= HANYUBIT;
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} else
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return EILSEQ;
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*wc = (wchar_t)idx;
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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_DECHanyu_stdenc_get_state_desc_generic(
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_DECHanyuEncodingInfo * __restrict ei,
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_DECHanyuState * __restrict psenc, int * __restrict rstate)
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{
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/* ei may be unused */
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_DIAGASSERT(psenc != NULL);
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_DIAGASSERT(rstate != NULL);
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*rstate = (psenc->chlen == 0)
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? _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 ctype
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*/
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_CITRUS_CTYPE_DECLS(DECHanyu);
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_CITRUS_CTYPE_DEF_OPS(DECHanyu);
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#include "citrus_ctype_template.h"
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/* ----------------------------------------------------------------------
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* public interface for stdenc
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*/
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_CITRUS_STDENC_DECLS(DECHanyu);
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_CITRUS_STDENC_DEF_OPS(DECHanyu);
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#include "citrus_stdenc_template.h"
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