1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/* $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,
};
|
