136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
/* $NetBSD: runenone.c,v 1.5 2001/01/03 15:23:26 lukem Exp $ */
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/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Paul Borman at Krystal Technologies.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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#if 0
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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 1.5 2001/01/03 15:23:26 lukem Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include <assert.h>
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#include <stddef.h>
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#include <stdio.h>
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#include "rune.h"
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#include <errno.h>
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#include <stdlib.h>
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size_t _none_mbrtowc __P((struct _RuneLocale *, rune_t *, const char *, size_t,
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void *));
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size_t _none_wcrtomb __P((struct _RuneLocale *, char *, size_t, const rune_t,
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void *));
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static _RuneState _NONE_RuneState = {
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0, /* sizestate */
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NULL, /* initstate */
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NULL, /* packstate */
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NULL /* unpackstate */
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};
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int _none_init __P((_RuneLocale *rl));
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int
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_none_init(rl)
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_RuneLocale *rl;
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{
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_DIAGASSERT(rl != NULL);
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rl->__rune_mbrtowc = _none_mbrtowc;
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rl->__rune_wcrtomb = _none_wcrtomb;
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rl->__rune_RuneState = &_NONE_RuneState;
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rl->__rune_mb_cur_max = 1;
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return(0);
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}
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/* s is non-null */
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size_t
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_none_mbrtowc(rl, pwcs, s, n, state)
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_RuneLocale *rl;
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rune_t *pwcs;
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const char *s;
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size_t n;
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void *state;
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{
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/* rl appears to be unused */
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/* pwcs may be NULL */
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_DIAGASSERT(s != NULL);
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/* state appears to be unused */
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if (n < 1)
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return (size_t)-2;
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if (pwcs)
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*pwcs = *s & 0xff;
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if (!*s)
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return 0;
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else
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return 1;
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}
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/* s is non-null */
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size_t
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_none_wcrtomb(rl, s, n, wc, state)
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_RuneLocale *rl;
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char *s;
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size_t n;
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const rune_t wc;
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void *state;
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{
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/* rl appears to be unused */
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_DIAGASSERT(s != NULL);
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/* state appears to be unused */
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if (wc & ~0xff) {
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errno = EILSEQ;
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return (size_t)-1;
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}
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if (n < 1) {
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/* bound check failure */
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errno = EILSEQ; /*XXX*/
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return (size_t)-1;
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}
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*s = wc & 0xff;
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return 1;
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}
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