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/* $NetBSD: citrus_none.c,v 1.18 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.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: citrus_none.c,v 1.18 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 "citrus_namespace.h"
#include "citrus_types.h"
#include "citrus_module.h"
#include "citrus_ctype.h"
#include "citrus_none.h"
#include "citrus_stdenc.h"
/* ---------------------------------------------------------------------- */
_CITRUS_CTYPE_DECLS(NONE);
_CITRUS_CTYPE_DEF_OPS(NONE);
/* ---------------------------------------------------------------------- */
static int
/*ARGSUSED*/
_citrus_NONE_ctype_init(void ** __restrict cl, void * __restrict var,
size_t lenvar, size_t lenps)
{
*cl = NULL;
return (0);
}
static void
/*ARGSUSED*/
_citrus_NONE_ctype_uninit(void *cl)
{
}
static unsigned
/*ARGSUSED*/
_citrus_NONE_ctype_get_mb_cur_max(void *cl)
{
return (1);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_mblen(void * __restrict cl, const char * __restrict s,
size_t n, int * __restrict nresult)
{
if (!s) {
*nresult = 0; /* state independent */
return (0);
}
if (n==0) {
*nresult = -1;
return (EILSEQ);
}
*nresult = (*s == 0) ? 0 : 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_mbrlen(void * __restrict cl, const char * __restrict s,
size_t n, void * __restrict pspriv,
size_t * __restrict nresult)
{
if (!s) {
*nresult = 0;
return (0);
}
if (n==0) {
*nresult = (size_t)-2;
return (0);
}
*nresult = (*s == 0) ? 0 : 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_mbrtowc(void * __restrict cl, wchar_t * __restrict pwc,
const char * __restrict s, size_t n,
void * __restrict pspriv,
size_t * __restrict nresult)
{
if (s == NULL) {
*nresult = 0;
return (0);
}
if (n == 0) {
*nresult = (size_t)-2;
return (0);
}
if (pwc != NULL)
*pwc = (wchar_t)(unsigned char) *s;
*nresult = *s == '\0' ? 0 : 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_mbsinit(void * __restrict cl,
const void * __restrict pspriv,
int * __restrict nresult)
{
*nresult = 1; /* always initial state */
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_mbsrtowcs(void * __restrict cl, wchar_t * __restrict pwcs,
const char ** __restrict s, size_t n,
void * __restrict pspriv,
size_t * __restrict nresult)
{
int cnt;
const char *s0;
/* if pwcs is NULL, ignore n */
if (pwcs == NULL)
n = 1; /* arbitrary >0 value */
cnt = 0;
s0 = *s; /* to keep *s unchanged for now, use copy instead. */
while (n > 0) {
if (pwcs != NULL) {
*pwcs = (wchar_t)(unsigned char)*s0;
}
if (*s0 == '\0') {
s0 = NULL;
break;
}
s0++;
if (pwcs != NULL) {
pwcs++;
n--;
}
cnt++;
}
if (pwcs)
*s = s0;
*nresult = (size_t)cnt;
return (0);
}
static int
_citrus_NONE_ctype_mbstowcs(void * __restrict cl, wchar_t * __restrict wcs,
const char * __restrict s, size_t n,
size_t * __restrict nresult)
{
const char *rs = s;
return (_citrus_NONE_ctype_mbsrtowcs(cl, wcs, &rs, n, NULL, nresult));
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_mbtowc(void * __restrict cl, wchar_t * __restrict pwc,
const char * __restrict s, size_t n,
int * __restrict nresult)
{
if (s == NULL) {
*nresult = 0; /* state independent */
return (0);
}
if (n == 0) {
return (EILSEQ);
}
if (pwc == NULL) {
if (*s == '\0') {
*nresult = 0;
} else {
*nresult = 1;
}
return (0);
}
*pwc = (wchar_t)(unsigned char)*s;
*nresult = *s == '\0' ? 0 : 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_wcrtomb(void * __restrict cl, char * __restrict s,
wchar_t wc, void * __restrict pspriv,
size_t * __restrict nresult)
{
if ((wc&~0xFFU) != 0) {
*nresult = (size_t)-1;
return (EILSEQ);
}
*nresult = 1;
if (s!=NULL)
*s = (char)wc;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_wcsrtombs(void * __restrict cl, char * __restrict s,
const wchar_t ** __restrict pwcs, size_t n,
void * __restrict pspriv,
size_t * __restrict nresult)
{
size_t count;
const wchar_t *pwcs0;
pwcs0 = *pwcs;
count = 0;
if (s == NULL)
n = 1;
while (n > 0) {
if ((*pwcs0 & ~0xFFU) != 0) {
*nresult = (size_t)-1;
return (EILSEQ);
}
if (s != NULL) {
*s++ = (char)*pwcs0;
n--;
}
if (*pwcs0 == L'\0') {
pwcs0 = NULL;
break;
}
count++;
pwcs0++;
}
if (s != NULL)
*pwcs = pwcs0;
*nresult = count;
return (0);
}
static int
_citrus_NONE_ctype_wcstombs(void * __restrict cl, char * __restrict s,
const wchar_t * __restrict pwcs, size_t n,
size_t * __restrict nresult)
{
const wchar_t *rpwcs = pwcs;
return (_citrus_NONE_ctype_wcsrtombs(cl, s, &rpwcs, n, NULL, nresult));
}
static int
_citrus_NONE_ctype_wctomb(void * __restrict cl, char * __restrict s,
wchar_t wc, int * __restrict nresult)
{
int ret;
size_t nr;
if (s == 0) {
/*
* initialize state here.
* (nothing to do for us.)
*/
*nresult = 0; /* we're state independent */
return (0);
}
ret = _citrus_NONE_ctype_wcrtomb(cl, s, wc, NULL, &nr);
*nresult = (int)nr;
return (ret);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_btowc(_citrus_ctype_rec_t * __restrict cc,
int c, wint_t * __restrict wcresult)
{
if (c == EOF || c & ~0xFF)
*wcresult = WEOF;
else
*wcresult = (wint_t)c;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_ctype_wctob(_citrus_ctype_rec_t * __restrict cc,
wint_t wc, int * __restrict cresult)
{
if (wc == WEOF || wc & ~0xFF)
*cresult = EOF;
else
*cresult = (int)wc;
return (0);
}
/* ---------------------------------------------------------------------- */
_CITRUS_STDENC_DECLS(NONE);
_CITRUS_STDENC_DEF_OPS(NONE);
struct _citrus_stdenc_traits _citrus_NONE_stdenc_traits = {
0, /* et_state_size */
1, /* mb_cur_max */
};
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_init(struct _citrus_stdenc * __restrict ce,
const void *var, size_t lenvar,
struct _citrus_stdenc_traits * __restrict et)
{
et->et_state_size = 0;
et->et_mb_cur_max = 1;
ce->ce_closure = NULL;
return (0);
}
static void
/*ARGSUSED*/
_citrus_NONE_stdenc_uninit(struct _citrus_stdenc *ce)
{
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_init_state(struct _citrus_stdenc * __restrict ce,
void * __restrict ps)
{
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_mbtocs(struct _citrus_stdenc * __restrict ce,
_csid_t *csid, _index_t *idx,
const char **s, size_t n,
void *ps, size_t *nresult)
{
_DIAGASSERT(csid != NULL && idx != NULL);
if (n<1) {
*nresult = (size_t)-2;
return (0);
}
*csid = 0;
*idx = (_index_t)(unsigned char)*(*s)++;
*nresult = *idx == 0 ? 0 : 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_cstomb(struct _citrus_stdenc * __restrict ce,
char *s, size_t n,
_csid_t csid, _index_t idx,
void *ps, size_t *nresult)
{
if (csid == _CITRUS_CSID_INVALID) {
*nresult = 0;
return (0);
}
if (n<1) {
*nresult = (size_t)-1;
return (E2BIG);
}
if (csid != 0 || (idx&0xFF) != idx)
return (EILSEQ);
*s = (char)idx;
*nresult = 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_mbtowc(struct _citrus_stdenc * __restrict ce,
_wc_t * __restrict pwc,
const char ** __restrict s, size_t n,
void * __restrict pspriv,
size_t * __restrict nresult)
{
if (s == NULL) {
*nresult = 0;
return (0);
}
if (n == 0) {
*nresult = (size_t)-2;
return (0);
}
if (pwc != NULL)
*pwc = (_wc_t)(unsigned char) **s;
*nresult = *s == '\0' ? 0 : 1;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_wctomb(struct _citrus_stdenc * __restrict ce,
char * __restrict s, size_t n,
_wc_t wc, void * __restrict pspriv,
size_t * __restrict nresult)
{
if ((wc&~0xFFU) != 0) {
*nresult = (size_t)-1;
return (EILSEQ);
}
if (n==0) {
*nresult = (size_t)-1;
return (E2BIG);
}
*nresult = 1;
if (s!=NULL && n>0)
*s = (char)wc;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_put_state_reset(struct _citrus_stdenc * __restrict ce,
char * __restrict s, size_t n,
void * __restrict pspriv,
size_t * __restrict nresult)
{
*nresult = 0;
return (0);
}
static int
/*ARGSUSED*/
_citrus_NONE_stdenc_get_state_desc(struct _stdenc * __restrict ce,
void * __restrict ps,
int id,
struct _stdenc_state_desc * __restrict d)
{
int ret = 0;
switch (id) {
case _STDENC_SDID_GENERIC:
d->u.generic.state = _STDENC_SDGEN_INITIAL;
break;
default:
ret = EOPNOTSUPP;
}
return ret;
}
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