diskdev_cmds/fdisk.tproj/disk.h

   1 /*
   2  * Copyright (c) 2002,2012 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * Copyright (c) 1997 Tobias Weingartner
  26  * All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *    This product includes software developed by Tobias Weingartner.
  39  * 4. The name of the author may not be used to endorse or promote products
  40  *    derived from this software without specific prior written permission.
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  43  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  44  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  45  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  46  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  47  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  48  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  49  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  50  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  51  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  52  */
  53
  54 #ifndef _DISK_H
  55 #define _DISK_H
  56
  57 /* Data types */
  58 typedef struct _DISK_metrics {
  59         unsigned int cylinders;
  60         unsigned int heads;
  61         unsigned int sectors;
  62         unsigned int size;              /* Number of sectors in disk */
  63         unsigned int sector_size;       /* Bytes per sector */
  64 } DISK_metrics;
  65
  66 typedef struct _disk_t {
  67         char *name;
  68         DISK_metrics *bios;     /* Metrics as reported by BIOS (always NULL) */
  69         DISK_metrics *label;    /* As reported by device ioctls */
  70         DISK_metrics *real;     /* Metrics we're using (BIOS, ioctls, user-supplied) */
  71 } disk_t;
  72
  73 /* Prototypes */
  74 int DISK_open __P((char *, int));
  75 int DISK_openshared __P((char *, int, int *));
  76 int DISK_close __P((int));
  77 int DISK_getmetrics __P((disk_t *, DISK_metrics *));
  78 int DISK_get_sector_size __P((disk_t *, DISK_metrics *));
  79 int DISK_printmetrics __P((disk_t *));
  80 void DISK_fake_CHS __P((DISK_metrics *));
  81
  82 #endif /* _DISK_H */
  83