include/miniopt.h

/*
 * Command line options parser.
 *
 * Copyright 1999-2016, Broadcom Corporation
 * 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.
 *
 * This software is provided by the copyright holder "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 copyright holder 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
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: miniopt.h 514727 2014-11-12 03:02:48Z $
 */


#ifndef MINI_OPT_H
#define MINI_OPT_H

#ifdef __cplusplus
extern "C" {
#endif

/* ---- Include Files ---------------------------------------------------- */


/* ---- Constants and Types ---------------------------------------------- */

#define MINIOPT_MAXKEY	128	/* Max options */
typedef struct miniopt {

	/* These are persistent after miniopt_init() */
	const char* name;		/* name for prompt in error strings */
	const char* flags;		/* option chars that take no args */
	bool longflags;		/* long options may be flags */
	bool opt_end;		/* at end of options (passed a "--") */

	/* These are per-call to miniopt() */

	int consumed;		/* number of argv entries cosumed in
				 * the most recent call to miniopt()
				 */
	bool positional;
	bool good_int;		/* 'val' member is the result of a sucessful
				 * strtol conversion of the option value
				 */
	char opt;
	char key[MINIOPT_MAXKEY];
	char* valstr;		/* positional param, or value for the option,
				 * or null if the option had
				 * no accompanying value
				 */
	uint uval;		/* strtol translation of valstr */
	int  val;		/* strtol translation of valstr */
} miniopt_t;

void miniopt_init(miniopt_t *t, const char* name, const char* flags, bool longflags);
int miniopt(miniopt_t *t, char **argv);


/* ---- Variable Externs ------------------------------------------------- */
/* ---- Function Prototypes ---------------------------------------------- */


#ifdef __cplusplus
	}
#endif

#endif  /* MINI_OPT_H  */