From 5fad944ed19545c2ace3303a9ecd132a715bdd51 Mon Sep 17 00:00:00 2001
From: pogokeen <pogokeen@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Wed, 7 Aug 2019 16:18:57 +0000
Subject: [PATCH] engine.cpp: make renderSetTarget() more robust so that
 passing an xsiz or ysiz <= 0 is not accepted and can't cause a segmentation
 fault

git-svn-id: https://svn.eduke32.com/eduke32@7890 1a8010ca-5511-0410-912e-c29ae57300e0
---
 source/build/src/engine.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/build/src/engine.cpp b/source/build/src/engine.cpp
index 220a420dd..c1f325156 100644
--- a/source/build/src/engine.cpp
+++ b/source/build/src/engine.cpp
@@ -12004,6 +12004,9 @@ void renderSetTarget(int16_t tilenume, int32_t xsiz, int32_t ysiz)
 {
     if (setviewcnt >= MAXSETVIEW-1)
         return;
+    if (xsiz <= 0 ||
+        ysiz <= 0)
+        return;
 
     //DRAWROOMS TO TILE BACKUP&SET CODE
     tilesiz[tilenume].x = xsiz; tilesiz[tilenume].y = ysiz;