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Dont report more than 1023 cylinders for DOS/BIOS because 

the code below will truncate to a 10 bit field.  This
can cause major problems later for DOS.
This commit is contained in:
rvb 1998-08-10 18:46:29 +00:00
parent e5439fc15b
commit db826b28d9
1 changed files with 4 additions and 2 deletions
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6
sbin/fdisk/fdisk.c
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@ -1,4 +1,4 @@
/* $NetBSD: fdisk.c,v 1.26 1998/02/25 14:19:12 drochner Exp $ */
/* $NetBSD: fdisk.c,v 1.27 1998/08/10 18:46:29 rvb Exp $ */
/*
* Mach Operating System
@ -29,7 +29,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: fdisk.c,v 1.26 1998/02/25 14:19:12 drochner Exp $");
__RCSID("$NetBSD: fdisk.c,v 1.27 1998/08/10 18:46:29 rvb Exp $");
#endif /* not lint */
#include <sys/types.h>
@ -840,6 +840,8 @@ dos(sector, cylinderp, headp, sectorp)
head = sector / dos_sectors;
sector -= head * dos_sectors;
if (cylinder > 1023)
cylinder = 1023;
*cylinderp = DOSCYL(cylinder);
*headp = head;
*sectorp = DOSSECT(sector + 1, cylinder);