filio.h revision 331722 
1/*-
2 * Copyright (c) 1982, 1986, 1990, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)filio.h	8.1 (Berkeley) 3/28/94
35 * $FreeBSD: stable/11/sys/sys/filio.h 331722 2018-03-29 02:50:57Z eadler $
36 */
37
38#ifndef	_SYS_FILIO_H_
39#define	_SYS_FILIO_H_
40
41#include <sys/ioccom.h>
42
43/* Generic file-descriptor ioctl's. */
44#define	FIOCLEX		 _IO('f', 1)		/* set close on exec on fd */
45#define	FIONCLEX	 _IO('f', 2)		/* remove close on exec */
46#define	FIONREAD	_IOR('f', 127, int)	/* get # bytes to read */
47#define	FIONBIO		_IOW('f', 126, int)	/* set/clear non-blocking i/o */
48#define	FIOASYNC	_IOW('f', 125, int)	/* set/clear async i/o */
49#define	FIOSETOWN	_IOW('f', 124, int)	/* set owner */
50#define	FIOGETOWN	_IOR('f', 123, int)	/* get owner */
51#define	FIODTYPE	_IOR('f', 122, int)	/* get d_flags type part */
52#define	FIOGETLBA	_IOR('f', 121, int)	/* get start blk # */
53struct fiodgname_arg {
54	int	len;
55	void	*buf;
56};
57#define	FIODGNAME	_IOW('f', 120, struct fiodgname_arg) /* get dev. name */
58#define	FIONWRITE	_IOR('f', 119, int)	/* get # bytes (yet) to write */
59#define	FIONSPACE	_IOR('f', 118, int)	/* get space in send queue */
60/* Handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge. */
61#define	FIOSEEKDATA	_IOWR('f', 97, off_t)	/* SEEK_DATA */
62#define	FIOSEEKHOLE	_IOWR('f', 98, off_t)	/* SEEK_HOLE */
63
64#endif /* !_SYS_FILIO_H_ */
65