minix/lib/libc/citrus/modules/citrus_euctw.c
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
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
2012-02-14 14:52:02 +01:00

428 lines
9.9 KiB
C

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