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
474 lines
10 KiB
C
474 lines
10 KiB
C
/* $NetBSD: citrus_gbk2k.c,v 1.7 2008/06/14 16:01:07 tnozaki Exp $ */
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/*-
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* Copyright (c)2003 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_gbk2k.c,v 1.7 2008/06/14 16:01:07 tnozaki Exp $");
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#endif /* LIBC_SCCS and not lint */
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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 <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 <sys/types.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_gbk2k.h"
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/* ----------------------------------------------------------------------
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* private stuffs used by templates
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*/
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typedef struct _GBK2KState {
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char ch[4];
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int chlen;
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} _GBK2KState;
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typedef struct {
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int mb_cur_max;
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} _GBK2KEncodingInfo;
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typedef struct {
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_GBK2KEncodingInfo ei;
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struct {
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/* for future multi-locale facility */
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_GBK2KState s_mblen;
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_GBK2KState s_mbrlen;
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_GBK2KState s_mbrtowc;
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_GBK2KState s_mbtowc;
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_GBK2KState s_mbsrtowcs;
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_GBK2KState s_wcrtomb;
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_GBK2KState s_wcsrtombs;
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_GBK2KState s_wctomb;
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} states;
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} _GBK2KCTypeInfo;
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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_GBK2K_##m
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#define _ENCODING_INFO _GBK2KEncodingInfo
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#define _CTYPE_INFO _GBK2KCTypeInfo
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#define _ENCODING_STATE _GBK2KState
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#define _ENCODING_MB_CUR_MAX(_ei_) (_ei_)->mb_cur_max
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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_GBK2K_init_state(_GBK2KEncodingInfo * __restrict ei,
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_GBK2KState * __restrict s)
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{
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memset(s, 0, sizeof(*s));
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}
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static __inline void
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/*ARGSUSED*/
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_citrus_GBK2K_pack_state(_GBK2KEncodingInfo * __restrict ei,
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void * __restrict pspriv,
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const _GBK2KState * __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_GBK2K_unpack_state(_GBK2KEncodingInfo * __restrict ei,
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_GBK2KState * __restrict s,
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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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static __inline int
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_mb_singlebyte(int c)
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{
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c &= 0xff;
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return (c <= 0x7f);
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}
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static __inline int
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_mb_leadbyte(int c)
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{
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c &= 0xff;
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return (0x81 <= c && c <= 0xfe);
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}
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static __inline int
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_mb_trailbyte(int c)
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{
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c &= 0xff;
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return ((0x40 <= c && c <= 0x7e) || (0x80 <= c && c <= 0xfe));
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}
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static __inline int
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_mb_surrogate(int c)
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{
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c &= 0xff;
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return (0x30 <= c && c <= 0x39);
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}
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static __inline int
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_mb_count(wchar_t v)
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{
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u_int32_t c;
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c = (u_int32_t)v; /* XXX */
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if (!(c & 0xffffff00))
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return (1);
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if (!(c & 0xffff0000))
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return (2);
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return (4);
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}
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#define _PSENC (psenc->ch[psenc->chlen - 1])
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#define _PUSH_PSENC(c) (psenc->ch[psenc->chlen++] = (c))
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static int
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_citrus_GBK2K_mbrtowc_priv(_GBK2KEncodingInfo * __restrict ei,
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wchar_t * __restrict pwc,
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const char ** __restrict s, size_t n,
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_GBK2KState * __restrict psenc,
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size_t * __restrict nresult)
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{
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int chlenbak, len;
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const char *s0, *s1;
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wchar_t wc;
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_DIAGASSERT(ei != NULL);
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/* pwc may be NULL */
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_DIAGASSERT(s != NULL);
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_DIAGASSERT(psenc != NULL);
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s0 = *s;
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if (s0 == NULL) {
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/* _citrus_GBK2K_init_state(ei, psenc); */
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psenc->chlen = 0;
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*nresult = 0;
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return (0);
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}
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chlenbak = psenc->chlen;
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switch (psenc->chlen) {
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case 3:
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if (!_mb_leadbyte (_PSENC))
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goto invalid;
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/* FALLTHROUGH */
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case 2:
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if (!_mb_surrogate(_PSENC) || _mb_trailbyte(_PSENC))
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goto invalid;
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/* FALLTHROUGH */
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case 1:
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if (!_mb_leadbyte (_PSENC))
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goto invalid;
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/* FALLTHOROUGH */
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case 0:
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break;
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default:
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goto invalid;
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}
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for (;;) {
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if (n-- < 1)
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goto restart;
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_PUSH_PSENC(*s0++);
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switch (psenc->chlen) {
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case 1:
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if (_mb_singlebyte(_PSENC))
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goto convert;
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if (_mb_leadbyte (_PSENC))
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continue;
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goto ilseq;
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case 2:
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if (_mb_trailbyte (_PSENC))
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goto convert;
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if (ei->mb_cur_max == 4 &&
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_mb_surrogate (_PSENC))
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continue;
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goto ilseq;
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case 3:
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if (_mb_leadbyte (_PSENC))
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continue;
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goto ilseq;
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case 4:
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if (_mb_surrogate (_PSENC))
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goto convert;
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goto ilseq;
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}
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}
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convert:
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len = psenc->chlen;
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s1 = &psenc->ch[0];
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wc = 0;
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while (len-- > 0)
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wc = (wc << 8) | (*s1++ & 0xff);
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if (pwc != NULL)
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*pwc = wc;
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*s = s0;
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*nresult = (wc == 0) ? 0 : psenc->chlen - chlenbak;
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/* _citrus_GBK2K_init_state(ei, psenc); */
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psenc->chlen = 0;
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return (0);
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restart:
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*s = s0;
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*nresult = (size_t)-2;
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return (0);
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invalid:
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return (EINVAL);
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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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_citrus_GBK2K_wcrtomb_priv(_GBK2KEncodingInfo * __restrict ei,
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char * __restrict s, size_t n, wchar_t wc,
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_GBK2KState * __restrict psenc,
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size_t * __restrict nresult)
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{
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int len, ret;
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_DIAGASSERT(ei != NULL);
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_DIAGASSERT(s != NULL);
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_DIAGASSERT(psenc != NULL);
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if (psenc->chlen != 0) {
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ret = EINVAL;
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goto err;
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}
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len = _mb_count(wc);
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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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switch (len) {
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case 1:
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if (!_mb_singlebyte(_PUSH_PSENC(wc ))) {
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ret = EILSEQ;
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goto err;
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}
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break;
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case 2:
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if (!_mb_leadbyte (_PUSH_PSENC(wc >> 8)) ||
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!_mb_trailbyte (_PUSH_PSENC(wc ))) {
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ret = EILSEQ;
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goto err;
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}
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break;
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case 4:
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if (ei->mb_cur_max != 4 ||
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!_mb_leadbyte (_PUSH_PSENC(wc >> 24)) ||
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!_mb_surrogate (_PUSH_PSENC(wc >> 16)) ||
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!_mb_leadbyte (_PUSH_PSENC(wc >> 8)) ||
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!_mb_surrogate (_PUSH_PSENC(wc ))) {
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ret = EILSEQ;
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goto err;
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}
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break;
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}
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_DIAGASSERT(len == psenc->chlen);
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memcpy(s, psenc->ch, psenc->chlen);
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*nresult = psenc->chlen;
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/* _citrus_GBK2K_init_state(ei, psenc); */
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psenc->chlen = 0;
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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_GBK2K_stdenc_wctocs(_GBK2KEncodingInfo * __restrict ei,
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_csid_t * __restrict csid,
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_index_t * __restrict idx, wchar_t wc)
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{
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u_int8_t ch, cl;
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_DIAGASSERT(csid != NULL && idx != NULL);
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if ((u_int32_t)wc<0x80) {
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/* ISO646 */
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*csid = 0;
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*idx = (_index_t)wc;
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} else if ((u_int32_t)wc>=0x10000) {
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/* GBKUCS : XXX */
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*csid = 3;
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*idx = (_index_t)wc;
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} else {
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ch = (u_int8_t)(wc >> 8);
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cl = (u_int8_t)wc;
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if (ch>=0xA1 && cl>=0xA1) {
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/* EUC G1 */
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*csid = 1;
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*idx = (_index_t)wc & 0x7F7FU;
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} else {
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/* extended area (0x8140-) */
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*csid = 2;
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*idx = (_index_t)wc;
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}
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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_GBK2K_stdenc_cstowc(_GBK2KEncodingInfo * __restrict ei,
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wchar_t * __restrict wc,
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_csid_t csid, _index_t idx)
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{
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_DIAGASSERT(wc != NULL);
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switch (csid) {
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case 0:
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/* ISO646 */
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*wc = (wchar_t)idx;
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break;
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case 1:
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/* EUC G1 */
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*wc = (wchar_t)idx | 0x8080U;
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break;
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case 2:
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/* extended area */
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*wc = (wchar_t)idx;
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break;
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case 3:
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/* GBKUCS : XXX */
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if (ei->mb_cur_max != 4)
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return EINVAL;
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*wc = (wchar_t)idx;
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break;
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default:
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return EILSEQ;
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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_GBK2K_stdenc_get_state_desc_generic(_GBK2KEncodingInfo * __restrict ei,
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_GBK2KState * __restrict psenc,
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int * __restrict rstate)
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{
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if (psenc->chlen == 0)
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*rstate = _STDENC_SDGEN_INITIAL;
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else
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*rstate = _STDENC_SDGEN_INCOMPLETE_CHAR;
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return 0;
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}
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static int
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/*ARGSUSED*/
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_citrus_GBK2K_encoding_module_init(_GBK2KEncodingInfo * __restrict ei,
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const void * __restrict var, size_t lenvar)
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{
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const char *p;
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_DIAGASSERT(ei != NULL);
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p = var;
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#define MATCH(x, act) \
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do { \
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if (lenvar >= (sizeof(#x)-1) && \
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_bcs_strncasecmp(p, #x, sizeof(#x)-1) == 0) { \
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act; \
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lenvar -= sizeof(#x)-1; \
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p += sizeof(#x)-1; \
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} \
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} while (/*CONSTCOND*/0)
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memset((void *)ei, 0, sizeof(*ei));
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ei->mb_cur_max = 4;
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while (lenvar>0) {
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switch (_bcs_tolower(*p)) {
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case '2':
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MATCH("2byte", ei->mb_cur_max = 2);
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break;
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}
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p++;
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lenvar--;
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}
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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_GBK2K_encoding_module_uninit(_GBK2KEncodingInfo *ei)
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{
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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(GBK2K);
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_CITRUS_CTYPE_DEF_OPS(GBK2K);
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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(GBK2K);
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_CITRUS_STDENC_DEF_OPS(GBK2K);
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#include "citrus_stdenc_template.h"
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