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Path: utzoo!mnetor!seismo!rutgers!ucla-cs!sdcrdcf!trwrb!aero!aero2!kelem
From: kelem@aero2.ARPA (Steve Kelem ATW)
Newsgroups: rec.games.hack,net.sources.games
Subject: Fix for hack 1.0.3 engrave bug
Message-ID: <98@aero2.ARPA>
Date: Wed, 21-Jan-87 13:23:46 EST
Article-I.D.: aero2.98
Posted: Wed Jan 21 13:23:46 1987
Date-Received: Thu, 22-Jan-87 20:33:03 EST
Reply-To: kelem@aero2.UUCP (Steve Kelem, ATW)
Distribution: na
Organization: The Aerospace Corporation, El Segundo, CA
Lines: 11
Xref: mnetor rec.games.hack:154 net.sources.games:953

Problem: Hack 1.0.3 dumps core if you try to "engrave(write)" something
on the floor with your finger.  This is caused by dereferencing a nil pointer.
This is tolerable on a Vax, but not on a Sun.

Fix: The following change in the file "engrave.c" will avoid dereferencing
a nil pointer.

144c144
< 	if(otmp->otyp == WAN_FIRE && otmp->spe) {
---
> 	if(otmp && otmp->otyp == WAN_FIRE && otmp->spe) {