49 lines
1.4 KiB
C
Executable File
49 lines
1.4 KiB
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
|
|
/* All Rights Reserved */
|
|
|
|
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
|
|
/* The copyright notice above does not evidence any */
|
|
/* actual or intended publication of such source code. */
|
|
|
|
#ident "@(#)sysmacros.h 1.1 90/04/27 SMI" /* SVr4.0 1.3 */
|
|
|
|
/*******************************************************************
|
|
|
|
PROPRIETARY NOTICE (Combined)
|
|
|
|
This source code is unpublished proprietary information
|
|
constituting, or derived under license from AT&T's UNIX(r) System V.
|
|
In addition, portions of such source code were derived from Berkeley
|
|
4.3 BSD under license from the Regents of the University of
|
|
California.
|
|
|
|
|
|
|
|
Copyright Notice
|
|
|
|
Notice of copyright on this source code product does not indicate
|
|
publication.
|
|
|
|
(c) 1986,1987,1988,1989 Sun Microsystems, Inc
|
|
(c) 1983,1984,1985,1986,1987,1988,1989 AT&T.
|
|
All rights reserved.
|
|
********************************************************************/
|
|
|
|
/*
|
|
* Major/minor device constructing/busting macros.
|
|
*/
|
|
|
|
#ifndef _SYS_SYSMACROS_H
|
|
#define _SYS_SYSMACROS_H
|
|
|
|
/* major part of a device */
|
|
#define major(x) ((int)(((unsigned)(x)>>8)&0377))
|
|
|
|
/* minor part of a device */
|
|
#define minor(x) ((int)((x)&0377))
|
|
|
|
/* make a device number */
|
|
#define makedev(x,y) ((dev_t)(((x)<<8) | (y)))
|
|
|
|
#endif /*!_SYS_SYSMACROS_H*/
|