1 /* $NetBSD: metachar.c,v 1.5 2015/06/19 08:03:35 mlelstv Exp $ */ 2 3 /*- 4 * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #if defined(MAKE_NATIVE) || defined(HAVE_NBTOOL_CONFIG_H) 37 #include <sys/cdefs.h> 38 #endif 39 40 #if defined(__RCSID) && !defined(lint) 41 __RCSID("$NetBSD: metachar.c,v 1.5 2015/06/19 08:03:35 mlelstv Exp $"); 42 #endif 43 44 #include "metachar.h" 45 /* 46 * The following array is used to make a fast determination of which 47 * characters are interpreted specially by the shell. If a command 48 * contains any of these characters, it is executed by the shell, not 49 * directly by us. 50 * 51 * perhaps move it to ctype? 52 */ 53 54 unsigned char _metachar[128] = { 55 // nul soh stx etx eot enq ack bel 56 1, 0, 0, 0, 0, 0, 0, 0, 57 // bs ht nl vt np cr so si 58 0, 0, 1, 0, 0, 0, 0, 0, 59 // dle dc1 dc2 dc3 dc4 nak syn etb 60 0, 0, 0, 0, 0, 0, 0, 0, 61 // can em sub esc fs gs rs us 62 0, 0, 0, 0, 0, 0, 0, 0, 63 // sp ! " # $ % & ' 64 0, 1, 1, 1, 1, 0, 1, 1, 65 // ( ) * + , - . / 66 1, 1, 1, 0, 0, 0, 0, 0, 67 // 0 1 2 3 4 5 6 7 68 0, 0, 0, 0, 0, 0, 0, 0, 69 // 8 9 : ; < = > ? 70 0, 0, 0, 1, 1, 0, 1, 1, 71 // @ A B C D E F G 72 0, 0, 0, 0, 0, 0, 0, 0, 73 // H I J K L M N O 74 0, 0, 0, 0, 0, 0, 0, 0, 75 // P Q R S T U V W 76 0, 0, 0, 0, 0, 0, 0, 0, 77 // X Y Z [ \ ] ^ _ 78 0, 0, 0, 1, 1, 1, 1, 0, 79 // ` a b c d e f g 80 1, 0, 0, 0, 0, 0, 0, 0, 81 // h i j k l m n o 82 0, 0, 0, 0, 0, 0, 0, 0, 83 // p q r s t u v w 84 0, 0, 0, 0, 0, 0, 0, 0, 85 // x y z { | } ~ del 86 0, 0, 0, 1, 1, 1, 1, 0, 87 }; 88 89