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Prex 0.8.0 has been released. Branch off from vanilla PREX_0_7_BASE preparing
the tree for backporting my changes.

/*-
 * Copyright (c) 1982, 1986, 1991, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * 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. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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.
 *
 *	@(#)types.h	8.6 (Berkeley) 2/19/95
 */

#ifndef _SYS_TYPES_H_
#define	_SYS_TYPES_H_

/* Machine type dependent parameters. */
#include <machine/types.h>
#include <prex/types.h>

typedef	unsigned char	u_char;
typedef	unsigned short	u_short;
typedef	unsigned int	u_int;
typedef	unsigned long	u_long;

typedef	uint32_t	dev_t;		/* device number */
typedef	uint32_t	gid_t;		/* group id */
typedef	uint32_t	ino_t;		/* inode number */
typedef	uint16_t	mode_t;		/* permissions */
typedef	uint16_t	nlink_t;	/* link count */
typedef	int32_t		off_t;		/* file offset */
typedef	int32_t		pid_t;		/* process id */
typedef	uint32_t	uid_t;		/* user id */
typedef unsigned long	rlim_t;		/* resource limit */

#include <sys/endian.h>

#if !defined(_CLOCK_T)
#define _CLOCK_T
typedef	unsigned long	clock_t;	/* relative time in a specified resolution */
#endif

#if !defined(_SIZE_T)
#define _SIZE_T
typedef	unsigned int	size_t;		/* size of something in bytes */
#endif

#if !defined(_SSIZE_T)
#define _SSIZE_T
typedef	int		ssize_t;	/* size of something in bytes */
#endif

#if !defined(_TIME_T)
#define _TIME_T
typedef	long		time_t;		/* time of day in seconds */
#endif

#define	NBBY	8		/* number of bits in a byte */

#ifndef KERNEL
/*
 * Select uses bit masks of file descriptors in longs.  These macros
 * manipulate such bit fields (the filesystem macros use chars).
 * FD_SETSIZE may be defined by the user, but the default here should
 * be enough for most uses.
 */
#ifndef	FD_SETSIZE
#define	FD_SETSIZE	16
#endif

typedef int32_t	fd_mask;
#define NFDBITS	(sizeof(fd_mask) * NBBY)	/* bits per mask */

#ifndef howmany
#define	howmany(x, y)	(((x) + ((y) - 1)) / (y))
#endif

typedef	struct fd_set {
	fd_mask	fds_bits[howmany(FD_SETSIZE, NFDBITS)];
} fd_set;

#define	FD_SET(n, p)	((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
#define	FD_CLR(n, p)	((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
#define	FD_ISSET(n, p)	((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
#define	FD_COPY(f, t)	bcopy(f, t, sizeof(*(f)))
#define	FD_ZERO(p)	bzero(p, sizeof(*(p)))
#endif /* !KERNEL */

#endif /* !_SYS_TYPES_H_ */