From d35f790994098063d3a36603e7c17ef92704371f Mon Sep 17 00:00:00 2001
From: morkt <morkt@users.noreply.github.com>
Date: Tue, 30 Oct 2018 23:47:11 +0400
Subject: [PATCH] (PackOpener): additional sanity check.

---
 ArcFormats/BlackRainbow/ArcDX.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArcFormats/BlackRainbow/ArcDX.cs b/ArcFormats/BlackRainbow/ArcDX.cs
index f390ba00..66dedce8 100644
--- a/ArcFormats/BlackRainbow/ArcDX.cs
+++ b/ArcFormats/BlackRainbow/ArcDX.cs
@@ -52,7 +52,7 @@ namespace GameRes.Formats.BlackRainbow
             using (var input = file.CreateStream (0, index_length))
             {
                 var reader = new IndexReader (input, file.MaxOffset);
-                if (!reader.ReadDir ("", 8, index_length))
+                if (!reader.ReadDir ("", 8, index_length) || 0 == reader.Dir.Count)
                     return null;
                 return new ArcFile (file, this, reader.Dir);
             }