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Aaru-aaru-dps/Aaru.Images/WUX/Identify.cs

63 lines
2.2 KiB
C#

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Identify.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disc image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Identifies Nintendo Wii U compressed disc images (WUX format).
//
// --[ 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.IO;
using Aaru.CommonTypes.Interfaces;
using Aaru.Helpers;
namespace Aaru.Images;
public sealed partial class Wux
{
#region IOpticalMediaImage Members
/// <inheritdoc />
public bool Identify(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if(stream.Length < WUX_HEADER_SIZE) return false;
stream.Seek(0, SeekOrigin.Begin);
var headerBytes = new byte[WUX_HEADER_SIZE];
stream.EnsureRead(headerBytes, 0, (int)WUX_HEADER_SIZE);
WuxHeader header = Marshal.SpanToStructureLittleEndian<WuxHeader>(headerBytes);
if(header.Magic != WUX_MAGIC) return false;
return header.SectorSize == WIIU_PHYSICAL_SECTOR;
}
#endregion
}