From 796867cd32408aada11fc21323d5ee0ce201ffee Mon Sep 17 00:00:00 2001
From: Filippos Karapetis <bluegr@gmail.com>
Date: Tue, 8 Jan 2013 23:07:22 +0200
Subject: [PATCH] TOLTECS: Fix script bug #3599964 - "TOLTECS: Crash when
 entering cave"

---
 engines/toltecs/script.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/engines/toltecs/script.cpp b/engines/toltecs/script.cpp
index f5e3f8481f1..9ea95a2cd1c 100644
--- a/engines/toltecs/script.cpp
+++ b/engines/toltecs/script.cpp
@@ -252,9 +252,12 @@ void ScriptInterpreter::execOpcode(byte opcode) {
 		// ok
 		_subCode = _code;
 		byte length = readByte();
+		if (length == 0) {
+			warning("Possible script bug detected - opcode length is 0 when calling script function");
+			return;
+		}
 		debug(2, "length = %d", length);
 		uint16 index = readInt16();
-		debug(2, "callScriptFunction %d", index);
 		execScriptFunction(index);
 		_code += length - 2;
 		break;