From a07533b607b335e07e93bc8e73198be614140b29 Mon Sep 17 00:00:00 2001
From: r-fogash <robert.fogash@macpaw.com>
Date: Wed, 17 Jan 2024 10:49:15 +0200
Subject: [PATCH] ISO parser should not parse SU (System Use) field in
 directory record if the padding bit is missing and no space for SU

---
 XADISO9660Parser.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/XADISO9660Parser.m b/XADISO9660Parser.m
index 23f38c2e..f936c2b0 100644
--- a/XADISO9660Parser.m
+++ b/XADISO9660Parser.m
@@ -407,7 +407,7 @@ -(void)parseDirectoryWithPath:(XADPath *)path atBlock:(uint32_t)block
 		if(flags&0x04) [dict setObject:[NSNumber numberWithBool:YES] forKey:XADIsDirectoryKey];
 
 		int systemlength=recordlength-33-namelength-((namelength&1)^1);
-		if(systemlength)
+		if(systemlength>0)
 		{
 			NSMutableData *namedata=nil;
 			NSMutableData *linkdata=nil;