86 lines
3.6 KiB
C
86 lines
3.6 KiB
C
/* $NetBSD: metachar.c,v 1.8 2020/10/30 19:14:20 rillig Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2015 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 HAVE_NBTOOL_CONFIG_H
|
|
#include "nbtool_config.h"
|
|
#endif
|
|
|
|
#if defined(MAKE_NATIVE) || defined(HAVE_NBTOOL_CONFIG_H)
|
|
#include <sys/cdefs.h>
|
|
#endif
|
|
|
|
#include "metachar.h"
|
|
|
|
MAKE_RCSID("$NetBSD: metachar.c,v 1.8 2020/10/30 19:14:20 rillig Exp $");
|
|
|
|
/*
|
|
* The following array is used to make a fast determination of which
|
|
* characters are interpreted specially by the shell. If a command
|
|
* contains any of these characters, it is executed by the shell, not
|
|
* directly by us.
|
|
*/
|
|
|
|
unsigned char _metachar[128] = {
|
|
/* nul soh stx etx eot enq ack bel */
|
|
1, 0, 0, 0, 0, 0, 0, 0,
|
|
/* bs ht nl vt np cr so si */
|
|
0, 0, 1, 0, 0, 0, 0, 0,
|
|
/* dle dc1 dc2 dc3 dc4 nak syn etb */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* can em sub esc fs gs rs us */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* sp ! " # $ % & ' */
|
|
0, 1, 1, 1, 1, 0, 1, 1,
|
|
/* ( ) * + , - . / */
|
|
1, 1, 1, 0, 0, 0, 0, 0,
|
|
/* 0 1 2 3 4 5 6 7 */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* 8 9 : ; < = > ? */
|
|
0, 0, 0, 1, 1, 0, 1, 1,
|
|
/* @ A B C D E F G */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* H I J K L M N O */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* P Q R S T U V W */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* X Y Z [ \ ] ^ _ */
|
|
0, 0, 0, 1, 1, 1, 1, 0,
|
|
/* ` a b c d e f g */
|
|
1, 0, 0, 0, 0, 0, 0, 0,
|
|
/* h i j k l m n o */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* p q r s t u v w */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* x y z { | } ~ del */
|
|
0, 0, 0, 1, 1, 1, 1, 0,
|
|
};
|
|
|