/*	$OpenBSD: bootarg.h,v 1.6 1998/08/07 05:24:17 mickey Exp $	*/

/*
 * Copyright (c) 1996-1998 Michael Shalayeff
 * 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 Michael Shalayeff.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE REGENTS OR CONTRIBUTORS 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.
 *
 */

#define	BOOTARG_APIVER	(BAPIV_VECTOR|BAPIV_ENV)
#define	BAPIV_ANCIENT	0x00000000	/* MD old i386 bootblocks */
#define	BAPIV_VARS	0x00000001	/* MD structure w/ add info passed */
#define	BAPIV_VECTOR	0x00000002	/* MI vector of MD structures passed */
#define	BAPIV_ENV	0x00000004	/* MI environment vars vector */

typedef struct _boot_args {
	int ba_type;
	size_t ba_size;
	struct _boot_args *ba_next;
	int ba_arg[1];
} bootarg_t;

#define	BOOTARG_ENV	0x1000
#define	BOOTARG_END	-1

#if defined(_KERNEL) || defined(_STANDALONE)
extern void *bootargv;
extern int bootargc;                                                     
extern bootarg_t *bootargp;
#endif

#ifdef _STANDALONE
void addbootarg __P((int, size_t, void *));
void makebootargs __P((caddr_t, size_t *));
#endif /* _STANDALONE */