Fixed InvalidCastException when checking multi volume 7z archive

squid-box · Sep 20, 2021 · 2210bdf · 2210bdf
1 parent 028053f
commit 2210bdf
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/SevenZip/SevenZipExtractor.cs b/SevenZip/SevenZipExtractor.cs
@@ -990,7 +990,8 @@ public bool Check()
             finally
             {
                 _archive?.Close();
-                ((InStreamWrapper)_archiveStream).Dispose();
+                if (_archiveStream is IDisposable)
+                    ((IDisposable)_archiveStream).Dispose();
                 _archiveStream = null;
                 _opened = false;
             }