From c18094c9196f89e3db99dabae89d955c328c0d5d Mon Sep 17 00:00:00 2001
From: Ulf Wohlers <finsterr@users.sourceforge.net>
Date: Mon, 4 Nov 2002 13:31:59 +0000
Subject: [PATCH] Fixed bug in RealHandle. it lost the highbyte of the file
 handle, which may lead to wrong file access.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@474
---
 include/dos_inc.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/dos_inc.h b/include/dos_inc.h
index 48bc6aba..fbc98df4 100644
--- a/include/dos_inc.h
+++ b/include/dos_inc.h
@@ -418,6 +418,9 @@ private:
 extern DOS_InfoBlock dos_infoblock;;
 
 INLINE Bit8u RealHandle(Bit16u handle) {
+	
+	// test out of range
+	if (handle>0xFF) return 0xff;
 	DOS_PSP psp(dos.psp);	
 	return psp.GetFileHandle((Bit8u)handle);
 }