1 /* $NetBSD: options.h,v 1.28 2024/07/12 07:30:30 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 #include "optinit.h" 59 60 extern char *minusc; /* argument to -c option */ 61 extern char *arg0; /* $0 */ 62 extern struct shparam shellparam; /* $@ */ 63 extern char **argptr; /* argument list for builtin commands */ 64 extern char *optionarg; /* set by nextopt */ 65 extern char *optptr; /* used by nextopt */ 66 67 void procargs(int, char **); 68 void optschanged(void); 69 void setparam(char **); 70 void freeparam(volatile struct shparam *); 71 int nextopt(const char *); 72 void getoptsreset(char *, int); 73