110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
|
/* $NetBSD: fix_grouping.c,v 1.5 2010/06/01 13:52:08 tnozaki Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* Original version ID:
|
||
|
|
* FreeBSD: fix_grouping.c,v 1.8 2003/06/26 10:46:16 phantom Exp
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if HAVE_NBTOOL_CONFIG_H
|
||
|
|
#include "nbtool_config.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
||
|
|
__RCSID("$NetBSD: fix_grouping.c,v 1.5 2010/06/01 13:52:08 tnozaki Exp $");
|
||
|
|
#endif /* LIBC_SCCS and not lint */
|
||
|
|
|
||
|
|
#include <limits.h>
|
||
|
|
#include <stddef.h>
|
||
|
|
|
||
|
|
#include "fix_grouping.h"
|
||
|
|
|
||
|
|
#ifndef NBCHAR_MAX
|
||
|
|
#define NBCHAR_MAX CHAR_MAX
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef __UNCONST
|
||
|
|
#define __UNCONST(a) ((void *)(unsigned long)(const void *)(a))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static const char nogrouping[] = { NBCHAR_MAX, '\0' };
|
||
|
|
|
||
|
|
/* don't use libc's isdigit, it owes locale. */
|
||
|
|
#define isdigit(c) (c >= '0' && c <= '9')
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Internal helper used to convert grouping sequences from string
|
||
|
|
* representation into POSIX specified form, i.e.
|
||
|
|
*
|
||
|
|
* "3;3;-1" -> "\003\003\177\000"
|
||
|
|
*/
|
||
|
|
|
||
|
|
const char *
|
||
|
|
__fix_locale_grouping_str(const char *str)
|
||
|
|
{
|
||
|
|
char *src, *dst;
|
||
|
|
char n;
|
||
|
|
|
||
|
|
if (str == NULL || *str == '\0') {
|
||
|
|
return nogrouping;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (src = __UNCONST(str), dst = __UNCONST(str); *src != '\0'; src++) {
|
||
|
|
|
||
|
|
/* input string examples: "3;3", "3;2;-1" */
|
||
|
|
if (*src == ';')
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (*src == '-' && *(src+1) == '1') {
|
||
|
|
*dst++ = NBCHAR_MAX;
|
||
|
|
src++;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isdigit((unsigned char)*src)) {
|
||
|
|
/* broken grouping string */
|
||
|
|
return nogrouping;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* assume all numbers <= 99 */
|
||
|
|
n = *src - '0';
|
||
|
|
if (isdigit((unsigned char)*(src+1))) {
|
||
|
|
src++;
|
||
|
|
n *= 10;
|
||
|
|
n += *src - '0';
|
||
|
|
}
|
||
|
|
|
||
|
|
*dst = n;
|
||
|
|
/* NOTE: assume all input started with "0" as 'no grouping' */
|
||
|
|
if (*dst == '\0')
|
||
|
|
return (dst == __UNCONST(str)) ? nogrouping : str;
|
||
|
|
dst++;
|
||
|
|
}
|
||
|
|
*dst = '\0';
|
||
|
|
return str;
|
||
|
|
}
|