From 9bb918f07f3829949eac61efaf6fe9c9ecf20b5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franti=C5=A1ek=20Boh=C3=A1=C4=8Dek?=
 <fandabohacek@gmail.com>
Date: Sat, 29 Jan 2022 23:23:52 +0100
Subject: [PATCH] fix(data): correctly decrypt 0 length lst files

---
 Data/NosSmooth.Data.NOSFiles/Decryptors/LstDecryptor.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Data/NosSmooth.Data.NOSFiles/Decryptors/LstDecryptor.cs b/Data/NosSmooth.Data.NOSFiles/Decryptors/LstDecryptor.cs
index 77c97bc..d81a6e6 100644
--- a/Data/NosSmooth.Data.NOSFiles/Decryptors/LstDecryptor.cs
+++ b/Data/NosSmooth.Data.NOSFiles/Decryptors/LstDecryptor.cs
@@ -15,8 +15,13 @@ public class LstDecryptor : IDecryptor
     /// <inheritdoc />
     public Result<byte[]> Decrypt(ReadOnlySpan<byte> data)
     {
+        if (data.Length == 0)
+        {
+            return Array.Empty<byte>();
+        }
+
         var output = new MemoryStream();
-        int linesCount = BinaryPrimitives.ReadInt32LittleEndian(data);
+        var linesCount = BinaryPrimitives.ReadInt32LittleEndian(data);
         data = data.Slice(4);
         for (var i = 0; i < linesCount; i++)
         {
-- 
2.49.0