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Annotation of kernel/bsd/dev/vndioctl.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
                     26: /*
                     27:  * Copyright (c) 1988 University of Utah.
                     28:  * Copyright (c) 1990, 1993
                     29:  *     The Regents of the University of California.  All rights reserved.
                     30:  *
                     31:  * This code is derived from software contributed to Berkeley by
                     32:  * the Systems Programming Group of the University of Utah Computer
                     33:  * Science Department.
                     34:  *
                     35:  * Redistribution and use in source and binary forms, with or without
                     36:  * modification, are permitted provided that the following conditions
                     37:  * are met:
                     38:  * 1. Redistributions of source code must retain the above copyright
                     39:  *    notice, this list of conditions and the following disclaimer.
                     40:  * 2. Redistributions in binary form must reproduce the above copyright
                     41:  *    notice, this list of conditions and the following disclaimer in the
                     42:  *    documentation and/or other materials provided with the distribution.
                     43:  * 3. All advertising materials mentioning features or use of this software
                     44:  *    must display the following acknowledgement:
                     45:  *     This product includes software developed by the University of
                     46:  *     California, Berkeley and its contributors.
                     47:  * 4. Neither the name of the University nor the names of its contributors
                     48:  *    may be used to endorse or promote products derived from this software
                     49:  *    without specific prior written permission.
                     50:  *
                     51:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     52:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     53:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     54:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     55:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     56:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     57:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     58:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     59:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     60:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     61:  * SUCH DAMAGE.
                     62:  *
                     63:  * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$
                     64:  *
                     65:  *     @(#)vnioctl.h   8.1 (Berkeley) 6/10/93
                     66:  */
                     67: 
                     68: /*
                     69:  * Ioctl definitions for file (vnode) disk pseudo-device.
                     70:  */
                     71: struct vnd_ioctl {
                     72:        char    *vnd_file;      /* pathname of file to mount */
                     73:        int     vnd_size;       /* (returned) size of disk */
                     74: };
                     75: 
                     76: /*
                     77:  * Before you can use a unit, it must be configured with VNDIOCSET.
                     78:  * The configuration persists across opens and closes of the device;
                     79:  * an VNDIOCCLR must be used to reset a configuration.  An attempt to
                     80:  * VNDIOCSET an already active unit will return EBUSY.
                     81:  */
                     82: #define VNDIOCSET      _IOWR('F', 0, struct vnd_ioctl) /* enable disk */
                     83: #define VNDIOCCLR      _IOW('F', 1, struct vnd_ioctl)  /* disable disk */

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