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      1 /*	$NetBSD: filio.h,v 1.11 2018/02/25 18:55:23 chs Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1982, 1986, 1990, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  * (c) UNIX System Laboratories, Inc.
      7  * All or some portions of this file are derived from material licensed
      8  * to the University of California by American Telephone and Telegraph
      9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
     10  * the permission of UNIX System Laboratories, Inc.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	@(#)filio.h	8.1 (Berkeley) 3/28/94
     37  */
     38 
     39 #ifndef	_SYS_FILIO_H_
     40 #define	_SYS_FILIO_H_
     41 
     42 #include <sys/ioccom.h>
     43 
     44 /* Generic file-descriptor ioctl's. */
     45 #define	FIOCLEX		 _IO('f', 1)		/* set close on exec on fd */
     46 #define	FIONCLEX	 _IO('f', 2)		/* remove close on exec */
     47 /* Handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge. */
     48 #define	FIOSEEKDATA	_IOWR('f', 97, off_t)	/* SEEK_DATA */
     49 #define	FIOSEEKHOLE	_IOWR('f', 98, off_t)	/* SEEK_HOLE */
     50 #define	FIONREAD	_IOR('f', 127, int)	/* get # bytes to read */
     51 #define	FIONBIO		_IOW('f', 126, int)	/* set/clear non-blocking i/o */
     52 #define	FIOASYNC	_IOW('f', 125, int)	/* set/clear async i/o */
     53 #define	FIOSETOWN	_IOW('f', 124, int)	/* set owner */
     54 #define	FIOGETOWN	_IOR('f', 123, int)	/* get owner */
     55 #define	OFIOGETBMAP	_IOWR('f', 122, uint32_t) /* get underlying block no. */
     56 #define	FIOGETBMAP	_IOWR('f', 122, daddr_t) /* get underlying block no. */
     57 #define	FIONWRITE	_IOR('f', 121, int)	/* get # bytes outstanding
     58 						 * in send queue. */
     59 #define	FIONSPACE	_IOR('f', 120, int)	/* get space in send queue. */
     60 
     61 /* Ugly symbol for compatibility with other operating systems */
     62 #define	FIBMAP		FIOGETBMAP
     63 
     64 #endif /* !_SYS_FILIO_H_ */
     65