670e4c9af8
* reformat code to KNF * compile with WARNS=1 * .Nm usage in man page * getopt returns -1 not EOF
93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/* $NetBSD: command.h,v 1.3 1997/09/15 01:29:30 lukem Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Philip A. Nelson.
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Philip A. Nelson.
|
|
* 4. The name of Philip A. Nelson may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY PHILIP NELSON ``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 PHILIP NELSON 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.
|
|
*/
|
|
|
|
/*
|
|
* Command tool - a library for building command languages fast.
|
|
*
|
|
* Philip A. Nelson, Oct 1991
|
|
*
|
|
* Some code is lifted from the PC532 monitor/debugger written
|
|
* by Bruce Culbertson. (Thanks Bruce!)
|
|
*/
|
|
|
|
/* Defines that depend on ANSI or not ANSI. */
|
|
|
|
#ifdef __STDC__
|
|
#define CMD_PROC(name) int name (int, char **, char *)
|
|
#else
|
|
#define CMD_PROC(name) name ();
|
|
#endif
|
|
|
|
|
|
/* The commands are stored in a table that includes their name, a pointer
|
|
to the function that processes the command and a help message. */
|
|
|
|
struct command { /* The commands, their names, help */
|
|
int (*fn) __P((int, char **, char *));
|
|
char *name;
|
|
char *syntax;
|
|
char *help;
|
|
};
|
|
|
|
/* The command loop will do the following:
|
|
a) prompt the user for a command.
|
|
b) read the command line.
|
|
c) break the input line into arguments.
|
|
d) search for the command in the command table.
|
|
e) If the command is found, call the routine to process it.
|
|
f) IF the return value from the command is NON ZERO, exit the loop.
|
|
|
|
Each function to process a command must be defined as follows:
|
|
|
|
int name ( int num, char ** cmd_args ) where num is the number
|
|
of arguments (the command name is not counted) and the cmd_args is
|
|
an array of pointers to the arguments. cmd_args[0] is the command
|
|
name. cmd_args[1] is the first argument.
|
|
|
|
*/
|
|
|
|
|
|
/* Constants defining the limits of the command processor.
|
|
*/
|
|
#define TRUE 1
|
|
#define FALSE 0
|
|
#define LINELEN 256
|
|
#define MAXARGS 16
|
|
#define BLANK_LINE 0
|
|
|
|
/* Stuff for StrCmp()
|
|
*/
|
|
#define CMP_NOMATCH 0
|
|
#define CMP_MATCH 1
|
|
#define CMP_SUBSTR 2
|