NetBSD/lib/libc/locale/runenone.c

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/* $NetBSD: runenone.c,v 1.8 2001/02/06 18:48:41 christos Exp $ */
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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Paul Borman at Krystal Technologies.
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*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
static char sccsid[] = "@(#)none.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: runenone.c,v 1.8 2001/02/06 18:48:41 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
#include <assert.h>
#include <stddef.h>
#include <stdio.h>
#include "rune.h"
#include <errno.h>
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#include <stdlib.h>
#include <string.h>
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size_t _none_mbrtowc __P((struct _RuneLocale *, rune_t *, const char *, size_t,
void *));
size_t _none_wcrtomb __P((struct _RuneLocale *, char *, size_t, const rune_t,
void *));
void _NONE_initstate __P((_RuneLocale *, void *));
void _NONE_packstate __P((_RuneLocale *, mbstate_t *, void *));
void _NONE_unpackstate __P((_RuneLocale *, void *, const mbstate_t *));
typedef struct {
void *runelocale; /* reserved for future thread-safeness */
} _NoneState __attribute__((__packed__));
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static _RuneState _NONE_RuneState = {
sizeof(_NoneState), /* sizestate */
_NONE_initstate, /* initstate */
_NONE_packstate, /* packstate */
_NONE_unpackstate /* unpackstate */
};
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int _none_init __P((_RuneLocale *rl));
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int
_none_init(rl)
_RuneLocale *rl;
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{
_DIAGASSERT(rl != NULL);
rl->__rune_mbrtowc = _none_mbrtowc;
rl->__rune_wcrtomb = _none_wcrtomb;
rl->__rune_RuneState = &_NONE_RuneState;
rl->__rune_mb_cur_max = 1;
return(0);
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}
/* s is non-null */
size_t
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/*ARGSUSED*/
_none_mbrtowc(rl, pwcs, s, n, state)
_RuneLocale *rl;
rune_t *pwcs;
const char *s;
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size_t n;
void *state;
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{
/* rl appears to be unused */
/* pwcs may be NULL */
_DIAGASSERT(s != NULL);
/* state appears to be unused */
if (n < 1)
return (size_t)-2;
if (pwcs)
*pwcs = *s & 0xff;
if (!*s)
return 0;
else
return 1;
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}
/* s is non-null */
size_t
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/*ARGSUSED*/
_none_wcrtomb(rl, s, n, wc, state)
_RuneLocale *rl;
char *s;
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size_t n;
const rune_t wc;
void *state;
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{
/* rl appears to be unused */
_DIAGASSERT(s != NULL);
/* state appears to be unused */
if (wc & ~0xff) {
errno = EILSEQ;
return (size_t)-1;
}
if (n < 1) {
/* bound check failure */
errno = EILSEQ; /*XXX*/
return (size_t)-1;
}
*s = wc & 0xff;
return 1;
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}
void
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/*ARGSUSED*/
_NONE_initstate(rl, s)
_RuneLocale *rl;
void *s;
{
_NoneState *state;
/* rl appears to be unused */
if (!s)
return;
state = s;
memset(state, 0, sizeof(*state));
}
void
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/*ARGSUSED*/
_NONE_packstate(rl, dst, src)
_RuneLocale *rl;
mbstate_t *dst;
void* src;
{
/* rl appears to be unused */
_DIAGASSERT(dst != NULL);
_DIAGASSERT(src != NULL);
return;
}
void
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/*ARGSUSED*/
_NONE_unpackstate(rl, dst, src)
_RuneLocale *rl;
void* dst;
const mbstate_t *src;
{
/* rl appears to be unused */
_DIAGASSERT(dst != NULL);
_DIAGASSERT(src != NULL);
return;
}