76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
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/*
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* Copyright (c) 1991 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the rights
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* to redistribute these changes.
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1989 Carnegie-Mellon University
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* Copyright (c) 1988 Carnegie-Mellon University
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* Copyright (c) 1987 Carnegie-Mellon University
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* All rights reserved. The CMU software License Agreement specifies
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* the terms and conditions for use and redistribution.
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*/
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/*
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* Revision 2.4 90/08/30 11:51:12 bohman
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*/
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/*
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* ITC Remote file system - vice ioctl interface module
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*/
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/*
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* TODO: Find /usr/local/include/viceioctl.h.
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*/
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#ifndef _SYS_VICEIOCTL_H_
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#define _SYS_VICEIOCTL_H_
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#include <sys/types.h>
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#include <sys/ioctl.h>
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struct ViceIoctl {
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caddr_t in, out; /* Data to be transferred in, or out */
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short in_size; /* Size of input buffer <= 2K */
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short out_size; /* Maximum size of output buffer, <= 2K */
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};
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/* The 2K limits above are a consequence of the size of the kernel buffer
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used to buffer requests from the user to venus--2*MAXPATHLEN.
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The buffer pointers may be null, or the counts may be 0 if there
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are no input or output parameters
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*/
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#ifdef __STDC__
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#define _VICEIOCTL(id) ((unsigned int ) _IOW('V', id, struct ViceIoctl))
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#else
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#define _VICEIOCTL(id) ((unsigned int ) _IOW(V, id, struct ViceIoctl))
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#endif
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/* Use this macro to define up to 256 vice ioctl's. These ioctl's
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all potentially have in/out parameters--this depends upon the
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values in the ViceIoctl structure. This structure is itself passed
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into the kernel by the normal ioctl parameter passing mechanism.
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*/
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#define _VALIDVICEIOCTL(com) (com >= _VICEIOCTL(0) && com <= _VICEIOCTL(255))
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#endif _SYS_VICEIOCTL_H_
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