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/*
* Copyright (C) 2009 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup command command
* @{ @ingroup pki
*/
#ifndef COMMAND_H_
#define COMMAND_H_
/**
* Maximum number of commands.
*/
#define MAX_COMMANDS 10
/**
* Maximum number of options in a command (+1)
*/
#define MAX_OPTIONS 20
/**
* Maximum number of usage summary lines (+1)
*/
#define MAX_LINES 10
typedef struct command_t command_t;
typedef struct command_option_t command_option_t;
typedef enum command_type_t command_type_t;
/**
* Option specification
*/
struct command_option_t {
/** long option string of the option */
char *name;
/** short option character of the option */
char op;
/** expected argument to option, no/req/opt_argument */
int arg;
/** description of the option */
char *desc;
};
/**
* Command specification.
*/
struct command_t {
/** Function implementing the command */
int (*call)();
/** short option character */
char op;
/** long option string */
char *cmd;
/** description of the command */
char *description;
/** usage summary of the command */
char *line[MAX_LINES];
/** list of options the command accepts */
command_option_t options[MAX_OPTIONS];
};
/**
* Get the next option, as with getopt.
*/
int command_getopt(char **arg);
/**
* Register a command.
*/
void command_register(command_t command);
/**
* Dispatch commands.
*/
int command_dispatch(int argc, char *argv[]);
/**
* Show usage information of active command.
*/
int command_usage(char *error);
#endif /* COMMAND_H_ @}*/
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