1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
freebsd/lib/libc/locale/none.c
Tim J. Robbins 9acd2d9b3c Avoid truncating invalid wide characters that are outside the range of
'unsigned char'; signal an error instead.
2002-10-16 11:37:38 +00:00

100 lines
3.0 KiB
C

/*-
* 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.
*
* 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)none.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <rune.h>
#include <stdlib.h>
rune_t _none_sgetrune(const char *, size_t, char const **);
int _none_sputrune(rune_t, char *, size_t, char **);
int
_none_init(rl)
_RuneLocale *rl;
{
rl->sgetrune = _none_sgetrune;
rl->sputrune = _none_sputrune;
_CurrentRuneLocale = rl;
__mb_cur_max = 1;
return(0);
}
rune_t
_none_sgetrune(string, n, result)
const char *string;
size_t n;
char const **result;
{
if (n < 1) {
if (result)
*result = string;
return(_INVALID_RUNE);
}
if (result)
*result = string + 1;
return(*string & 0xff);
}
int
_none_sputrune(c, string, n, result)
rune_t c;
char *string, **result;
size_t n;
{
if (n >= 1) {
if (string) {
if (c < 0 || c > UCHAR_MAX) {
if (result)
*result = NULL;
return (0);
}
*string = c;
}
if (result)
*result = string + 1;
} else if (result)
*result = (char *)0;
return(1);
}