[Symbian Installation File] Implement GetUncompressedSize().

Aaru.Archives/Symbian/Files.cs

@@ -79,5 +79,17 @@ public sealed partial class Symbian
         return _files[entryNumber].length;
     }
 
+    /// <inheritdoc />
+    public long GetUncompressedSize(int entryNumber)
+    {
+        if(!_opened)
+            return -1;
+
+        if(entryNumber < 0 || entryNumber >= _files.Count)
+            return -1;
+
+        return _compressed ? _files[entryNumber].originalLength : _files[entryNumber].length;
+    }
+
 #endregion
 }

Aaru.Archives/Symbian/Open.cs

@@ -162,8 +162,13 @@ public sealed partial class Symbian
         _files = filesWithFixedFilenames;
 
         _features = ArchiveSupportedFeature.SupportsFilenames | ArchiveSupportedFeature.SupportsSubdirectories;
+
         if(_release6 && !sh.options.HasFlag(SymbianOptions.NoCompress))
-            _features |= ArchiveSupportedFeature.SupportsCompression;
+        {
+            _features   |= ArchiveSupportedFeature.SupportsCompression;
+            _compressed =  true;
+        }
+
         if(_files.Any(t => t.mime is not null))
             _features |= ArchiveSupportedFeature.SupportsXAttrs;
 

Aaru.Archives/Symbian/Symbian.cs

@@ -42,6 +42,7 @@ namespace Aaru.Archives;
 public sealed partial class Symbian : IArchive
 {
     const string            MODULE_NAME = "Symbian Installation File Plugin";
+    bool                    _compressed;
     Encoding                _encoding;
     ArchiveSupportedFeature _features;
     List<DecodedFileRecord> _files;

Aaru.Archives/Symbian/Unsupported.cs

@@ -45,9 +45,6 @@ public sealed partial class Symbian
 {
 #region IArchive Members
 
-    /// <inheritdoc />
-    public long GetUncompressedSize(int entryNumber) => throw new NotImplementedException();
-
     /// <inheritdoc />
     public FileAttributes GetAttributes(int entryNumber) => throw new NotImplementedException();