[exFAT] Mark xattr and readlink as not supported operations.

Aaru.Filesystems/exFAT/Unimplemented.cs

@@ -27,7 +27,6 @@
 // ****************************************************************************/
 
 using System;
-using System.Collections.Generic;
 using Aaru.CommonTypes.Enums;
 using Aaru.CommonTypes.Interfaces;
 using Aaru.CommonTypes.Structs;
@@ -45,11 +44,6 @@ public sealed partial class exFAT
     public ErrorNumber GetAttributes(string path, out CommonTypes.Structs.FileAttributes attributes) =>
         throw new NotImplementedException();
 
-    /// <inheritdoc />
-    public ErrorNumber ListXAttr(string path, out List<string> xattrs) => throw new NotImplementedException();
-
-    /// <inheritdoc />
-    public ErrorNumber GetXattr(string path, string xattr, ref byte[] buf) => throw new NotImplementedException();
 
     /// <inheritdoc />
     public ErrorNumber StatFs(out FileSystemInfo stat) => throw new NotImplementedException();
@@ -57,8 +51,6 @@ public sealed partial class exFAT
     /// <inheritdoc />
     public ErrorNumber Stat(string path, out FileEntryInfo stat) => throw new NotImplementedException();
 
-    /// <inheritdoc />
-    public ErrorNumber ReadLink(string path, out string dest) => throw new NotImplementedException();
 
     /// <inheritdoc />
     public ErrorNumber OpenFile(string path, out IFileNode node) => throw new NotImplementedException();

Aaru.Filesystems/exFAT/Unsupported.cs

@@ -0,0 +1,56 @@
+// /***************************************************************************
+// Aaru Data Preservation Suite
+// ----------------------------------------------------------------------------
+//
+// Filename       : Unsupported.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Microsoft exFAT filesystem plugin.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This library is free software; you can redistribute it and/or modify
+//     it under the terms of the GNU Lesser General Public License as
+//     published by the Free Software Foundation; either version 2.1 of the
+//     License, or (at your option) any later version.
+//
+//     This library is distributed in the hope that it will be useful, but
+//     WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+//     Lesser General Public License for more details.
+//
+//     You should have received a copy of the GNU Lesser General Public
+//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2026 Natalia Portillo
+// ****************************************************************************/
+
+using System.Collections.Generic;
+using Aaru.CommonTypes.Enums;
+
+namespace Aaru.Filesystems;
+
+// Information from https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src/FileIO/exfat-specification.md
+/// <inheritdoc />
+public sealed partial class exFAT
+{
+    /// <inheritdoc />
+    public ErrorNumber ListXAttr(string path, out List<string> xattrs)
+    {
+        xattrs = [];
+
+        return ErrorNumber.NotSupported;
+    }
+
+    /// <inheritdoc />
+    public ErrorNumber GetXattr(string path, string xattr, ref byte[] buf) => ErrorNumber.NotSupported;
+
+    /// <inheritdoc />
+    public ErrorNumber ReadLink(string path, out string dest)
+    {
+        dest = null;
+
+        return ErrorNumber.NotSupported;
+    }
+}