mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-21 08:24:10 +01:00
72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 1982, 1986, 1990, 1993, 1994
|
|
* The Regents of the University of California. 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.
|
|
* 4. 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.
|
|
*
|
|
* @(#)ioccom.h 8.2 (Berkeley) 3/28/94
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _SYS_IOCCOM_H_
|
|
#define _SYS_IOCCOM_H_
|
|
|
|
/*
|
|
* Ioctl's have the command encoded in the lower word, and the size of
|
|
* any in or out parameters in the upper word. The high 3 bits of the
|
|
* upper word are used to encode the in/out status of the parameter.
|
|
*/
|
|
#define IOCPARM_MASK 0x1fff /* parameter length, at most 13 bits */
|
|
#define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
|
|
#define IOCBASECMD(x) ((x) & ~(IOCPARM_MASK << 16))
|
|
#define IOCGROUP(x) (((x) >> 8) & 0xff)
|
|
|
|
#define IOCPARM_MAX PAGE_SIZE /* max size of ioctl, mult. of PAGE_SIZE */
|
|
#define IOC_VOID 0x20000000 /* no parameters */
|
|
#define IOC_OUT 0x40000000 /* copy out parameters */
|
|
#define IOC_IN 0x80000000 /* copy in parameters */
|
|
#define IOC_INOUT (IOC_IN|IOC_OUT)
|
|
#define IOC_DIRMASK 0xe0000000 /* mask for IN/OUT/VOID */
|
|
|
|
#define _IOC(inout,group,num,len) \
|
|
((unsigned long)(inout | ((len & IOCPARM_MASK) << 16) | ((group) << 8) | (num)))
|
|
#define _IO(g,n) _IOC(IOC_VOID, (g), (n), 0)
|
|
#define _IOR(g,n,t) _IOC(IOC_OUT, (g), (n), sizeof(t))
|
|
#define _IOW(g,n,t) _IOC(IOC_IN, (g), (n), sizeof(t))
|
|
/* this should be _IORW, but stdio got there first */
|
|
#define _IOWR(g,n,t) _IOC(IOC_INOUT, (g), (n), sizeof(t))
|
|
|
|
#ifndef _KERNEL
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__BEGIN_DECLS
|
|
int ioctl(int, unsigned long, ...);
|
|
__END_DECLS
|
|
|
|
#endif
|
|
|
|
#endif /* !_SYS_IOCCOM_H_ */
|