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75 lines
2.5 KiB
C#
75 lines
2.5 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Identify.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Identifies Apple New Disk Image Format.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.IO;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.Helpers;
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using Claunia.RsrcFork;
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namespace Aaru.Images;
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public sealed partial class Ndif
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{
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#region IMediaImage Members
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/// <inheritdoc />
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public bool Identify(IFilter imageFilter)
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{
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if(!imageFilter.HasResourceFork || imageFilter.ResourceForkLength == 0) return false;
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try
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{
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var rsrcFork = new ResourceFork(imageFilter.GetResourceForkStream());
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if(!rsrcFork.ContainsKey(NDIF_RESOURCE)) return false;
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Resource rsrc = rsrcFork.GetResource(NDIF_RESOURCE);
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Stream dataFork = imageFilter.GetDataForkStream();
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var udifMagic = new byte[4];
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dataFork.EnsureRead(udifMagic, 0, 4);
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if(BitConverter.ToUInt32(udifMagic, 0) == 0x796C6F6B) return false;
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if(rsrc.ContainsId(NDIF_RESOURCEID)) return true;
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}
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catch(InvalidCastException)
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{
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return false;
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}
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return false;
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}
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#endregion
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} |