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/*
* Copyright (c) 1991 The Regents of the University of California.
* 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.
* 3. 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid = "$OpenBSD: multibyte.c,v 1.4 2003/06/02 20:18:38 millert Exp $";
#endif /* LIBC_SCCS and not lint */
#include <stdlib.h>
/*
* Stub multibyte character functions.
* This cheezy implementation is fixed to the native single-byte
* character set.
*/
int
mblen(s, n)
const char *s;
size_t n;
{
if (s == NULL || *s == '\0')
return 0;
if (n == 0)
return -1;
return 1;
}
/*ARGSUSED*/
int
mbtowc(pwc, s, n)
wchar_t *pwc;
const char *s;
size_t n;
{
if (s == NULL)
return 0;
if (n == 0)
return -1;
if (pwc)
*pwc = (wchar_t) *s;
return (*s != '\0');
}
/*ARGSUSED*/
int
wctomb(char *s, wchar_t wchar)
{
if (s == NULL)
return 0;
*s = (char) wchar;
return 1;
}
/*ARGSUSED*/
size_t
mbstowcs(pwcs, s, n)
wchar_t *pwcs;
const char *s;
size_t n;
{
int count = 0;
if (n != 0) {
do {
if ((*pwcs++ = (wchar_t) *s++) == 0)
break;
count++;
} while (--n != 0);
}
return count;
}
/*ARGSUSED*/
size_t
wcstombs(s, pwcs, n)
char *s;
const wchar_t *pwcs;
size_t n;
{
int count = 0;
if (n != 0) {
do {
if ((*s++ = (char) *pwcs++) == 0)
break;
count++;
} while (--n != 0);
}
return count;
}
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