From: deraadt <deraadt@openbsd.org>
Date: Fri, 31 Jan 1997 11:59:05 +0000 (+0000)
Subject: avoid some division by zero in hackish ways
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=244939790db685441feabada7b2ecee3b81a3fd0;p=openbsd

avoid some division by zero in hackish ways
---

diff --git a/sbin/fdisk/fdisk.c b/sbin/fdisk/fdisk.c
index b720591921b..47004eef7ae 100644
--- a/sbin/fdisk/fdisk.c
+++ b/sbin/fdisk/fdisk.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fdisk.c,v 1.11 1997/01/27 21:57:36 rahnds Exp $	*/
+/*	$OpenBSD: fdisk.c,v 1.12 1997/01/31 11:59:05 deraadt Exp $	*/
 /*	$NetBSD: fdisk.c,v 1.11 1995/10/04 23:11:19 ghudson Exp $	*/
 
 /*
@@ -28,7 +28,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$OpenBSD: fdisk.c,v 1.11 1997/01/27 21:57:36 rahnds Exp $";
+static char rcsid[] = "$OpenBSD: fdisk.c,v 1.12 1997/01/31 11:59:05 deraadt Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -608,10 +608,16 @@ dos(sector, cylinderp, headp, sectorp)
 {
 	int cylinder, head;
 
-	cylinder = sector / dos_cylindersectors;
+	if (dos_cylindersectors)
+		cylinder = sector / dos_cylindersectors;
+	else
+		cylinder = 0;
 	sector -= cylinder * dos_cylindersectors;
 
-	head = sector / dos_sectors;
+	if (dos_sectors)
+		head = sector / dos_sectors;
+	else
+		head = 0;
 	sector -= head * dos_sectors;
 
 	*cylinderp = DOSCYL(cylinder);