options.h revision 1.26
1 /* $NetBSD: options.h,v 1.26 2017/05/18 13:53:18 kre Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Kenneth Almquist. 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 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)options.h 8.2 (Berkeley) 5/4/95 35 */ 36 37 struct shparam { 38 int nparam; /* # of positional parameters (without $0) */ 39 unsigned char malloc; /* if parameter list dynamically allocated */ 40 unsigned char reset; /* if getopts has been reset */ 41 char **p; /* parameter list */ 42 char **optnext; /* next parameter to be processed by getopts */ 43 char *optptr; /* used by getopts */ 44 }; 45 46 /* 47 * Note that option default values can be changed at shell startup 48 * depending upon the environment in which the shell is running. 49 */ 50 struct optent { 51 const char *name; /* for set -o <name> */ 52 const char letter; /* set [+/-]<letter> and $- */ 53 const char opt_set; /* mutually exclusive option set */ 54 unsigned char val; /* value of <letter>flag */ 55 unsigned char dflt; /* default value of flag */ 56 }; 57 58 /* Those marked [U] are required by posix, but have no effect! */ 59 60 #ifdef DEFINE_OPTIONS 61 #define DEF_OPTS_D(name,letter,opt_set,dflt) {name, letter, opt_set, 0, dflt }, 62 struct optent optlist[] = { 63 #else 64 #define DEF_OPTS_D(name,letter,opt_set,dflt) 65 #endif 66 #define DEF_OPTS(name,letter,opt_set) DEF_OPTS_D(name, letter, opt_set, 0) 67 #define DEF_OPT(name,letter) DEF_OPTS_D(name, letter, 0, 0) 68 #define DEF_OPT_D(name,letter,dflt) DEF_OPTS_D(name, letter, 0, dflt) 69 70 DEF_OPT( "errexit", 'e' ) /* exit on error */ 71 #define eflag optlist[0].val 72 DEF_OPT( "noglob", 'f' ) /* no pathname expansion */ 73 #define fflag optlist[1].val 74 DEF_OPT( "ignoreeof", 'I' ) /* do not exit on EOF */ 75 #define Iflag optlist[2].val 76 DEF_OPT( "interactive",'i' ) /* interactive shell */ 77 #define iflag optlist[3].val 78 DEF_OPT( "monitor", 'm' ) /* job control */ 79 #define mflag optlist[4].val 80 DEF_OPT( "noexec", 'n' ) /* do not exec commands */ 81 #define nflag optlist[5].val 82 DEF_OPT( "stdin", 's' ) /* read from stdin */ 83 #define sflag optlist[6].val 84 DEF_OPT( "xtrace", 'x' ) /* trace after expansion */ 85 #define xflag optlist[7].val 86 DEF_OPT( "verbose", 'v' ) /* trace read input */ 87 #define vflag optlist[8].val 88 DEF_OPTS( "vi", 'V', 'V' ) /* vi style editing */ 89 #define Vflag optlist[9].val 90 DEF_OPTS( "emacs", 'E', 'V' ) /* emacs style editing */ 91 #define Eflag optlist[10].val 92 DEF_OPT( "noclobber", 'C' ) /* do not overwrite files with > */ 93 #define Cflag optlist[11].val 94 DEF_OPT( "allexport", 'a' ) /* export all variables */ 95 #define aflag optlist[12].val 96 DEF_OPT( "notify", 'b' ) /* [U] report completion of background jobs */ 97 #define bflag optlist[13].val 98 DEF_OPT( "nounset", 'u' ) /* error expansion of unset variables */ 99 #define uflag optlist[14].val 100 DEF_OPT( "quietprofile", 'q' ) 101 #define qflag optlist[15].val 102 DEF_OPT( "nolog", 0 ) /* [U] no functon defs in command history */ 103 #define nolog optlist[16].val 104 DEF_OPT( "cdprint", 0 ) /* always print result of cd */ 105 #define cdprint optlist[17].val 106 DEF_OPT( "tabcomplete", 0 ) /* <tab> causes filename expansion */ 107 #define tabcomplete optlist[18].val 108 DEF_OPT( "fork", 'F' ) /* use fork(2) instead of vfork(2) */ 109 #define usefork optlist[19].val 110 DEF_OPT( "nopriv", 'p' ) /* preserve privs even if set{u,g}id */ 111 #define pflag optlist[20].val 112 DEF_OPT( "trackall", 'h' ) /* [U] locate cmds in funcs when defined */ 113 #define hflag optlist[21].val 114 DEF_OPT( "posix", 0 ) /* operate in posix mode */ 115 #define posix optlist[22].val 116 #ifdef DEBUG 117 DEF_OPT( "debug", 0 ) /* enable debug prints */ 118 #define debug optlist[23].val 119 #endif 120 121 #ifdef DEFINE_OPTIONS 122 { 0, 0, 0, 0, 0 }, 123 }; 124 #define NOPTS (sizeof optlist / sizeof optlist[0] - 1) 125 int sizeof_optlist = sizeof optlist; 126 #else 127 extern struct optent optlist[]; 128 extern int sizeof_optlist; 129 #endif 130 131 132 extern char *minusc; /* argument to -c option */ 133 extern char *arg0; /* $0 */ 134 extern struct shparam shellparam; /* $@ */ 135 extern char **argptr; /* argument list for builtin commands */ 136 extern char *optionarg; /* set by nextopt */ 137 extern char *optptr; /* used by nextopt */ 138 139 void procargs(int, char **); 140 void optschanged(void); 141 void setparam(char **); 142 void freeparam(volatile struct shparam *); 143 int nextopt(const char *); 144 void getoptsreset(const char *); 145
Indexes created Fri Sep 26 20:09:58 GMT 2025