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77 lines
2.8 KiB
C#
77 lines
2.8 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 Ray Arachelian's disk images.
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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.IO;
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using System.Text.RegularExpressions;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.Helpers;
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using Aaru.Logging;
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namespace Aaru.Images;
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public sealed partial class RayDim
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{
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#region IWritableImage Members
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/// <inheritdoc />
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public bool Identify(IFilter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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if(stream.Length < Marshal.SizeOf<Header>()) return false;
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var buffer = new byte[Marshal.SizeOf<Header>()];
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stream.Seek(0, SeekOrigin.Begin);
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stream.EnsureRead(buffer, 0, buffer.Length);
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Header header = Marshal.ByteArrayToStructureLittleEndian<Header>(buffer);
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string signature = StringHandlers.CToString(header.signature);
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AaruLogging.Debug(MODULE_NAME, "header.signature = {0}", signature);
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AaruLogging.Debug(MODULE_NAME, "header.diskType = {0}", header.diskType);
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AaruLogging.Debug(MODULE_NAME, "header.heads = {0}", header.heads);
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AaruLogging.Debug(MODULE_NAME, "header.cylinders = {0}", header.cylinders);
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AaruLogging.Debug(MODULE_NAME, "header.sectorsPerTrack = {0}", header.sectorsPerTrack);
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Regex sx = SignatureRegex();
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Match sm = sx.Match(signature);
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AaruLogging.Debug(MODULE_NAME, "header.signature matches? = {0}", sm.Success);
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return sm.Success;
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}
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#endregion
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} |