options.h revision 1.27 
1/*	$NetBSD: options.h,v 1.27 2017/05/28 00:38:01 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
37struct 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 */
50struct 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
60extern char *minusc;		/* argument to -c option */
61extern char *arg0;		/* $0 */
62extern struct shparam shellparam;  /* $@ */
63extern char **argptr;		/* argument list for builtin commands */
64extern char *optionarg;		/* set by nextopt */
65extern char *optptr;		/* used by nextopt */
66
67void procargs(int, char **);
68void optschanged(void);
69void setparam(char **);
70void freeparam(volatile struct shparam *);
71int nextopt(const char *);
72void getoptsreset(const char *);
73