NetBSD/distrib/utils/sysinst/mbr.h

69 lines
2.9 KiB
C

/* $NetBSD: mbr.h,v 1.3 1998/07/21 14:53:36 rvb Exp $ */
/*
* Copyright 1997, 1988 Piermont Information Systems Inc.
* All rights reserved.
*
* Written by Philip A. Nelson for Piermont Information Systems Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software develooped for the NetBSD Project by
* Piermont Information Systems Inc.
* 4. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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.
*
*/
/*
* mbr.h -- definitions for reading, writing and editing DOS MBRs.
* Use by including from md.h on ports which use MBRs (i386, powerpc, arc)
* naming convention: dlxxxx => NetBSD disklabel, bxxxx => bios
*/
/* constants and defines */
/* incore fdisk (mbr, bios) geometry */
EXTERN int bcyl, bhead, bsec, bsize, bcylsize;
/* incore copy of MBR partitions */
enum info {ID,SIZE,START,FLAG,SET};
EXTERN int part[4][5] INIT({{0}});
EXTERN int activepart;
EXTERN int bsdpart; /* partition in use by NetBSD */
EXTERN int usefull; /* on install, clobber entire disk */
/* from mbr.c */
void set_fdisk_geom __P((void)); /* edit incore BIOS geometry */
void disp_cur_geom __P((void));
int check_geom __P((void)); /* primitive geometry sanity-check */
int edit_mbr __P((void));
int partsoverlap __P((int, int)); /* primive partition sanity-check */
/* from fdisk.c */
void get_fdisk_info __P((void)); /* read from disk into core */
void set_fdisk_info __P((void)); /* write incore info into disk */