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https://github.com/aaru-dps/Aaru.git
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Natalia Portillo
828c1e3da0
Introduces constant fields for respective debug module names, replacing the hardcoded ones. This is done to standardize the naming convention, reduce redundancy and potentially avoid any typos or name mismatches across the project. This change makes the code more maintainable and easier to update in case module names need to be changed.
73 lines
3.1 KiB
C#
73 lines
3.1 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 Nero Burning ROM disc 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 © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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using System.IO;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.Console;
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using Aaru.Helpers;
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namespace Aaru.DiscImages;
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public sealed partial class Nero
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{
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/// <inheritdoc />
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public bool Identify(IFilter imageFilter)
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{
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_imageStream = imageFilter.GetDataForkStream();
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var footerV1 = new FooterV1();
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var footerV2 = new FooterV2();
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_imageStream.Seek(-8, SeekOrigin.End);
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byte[] buffer = new byte[8];
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_imageStream.EnsureRead(buffer, 0, 8);
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footerV1.ChunkId = BigEndianBitConverter.ToUInt32(buffer, 0);
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footerV1.FirstChunkOffset = BigEndianBitConverter.ToUInt32(buffer, 4);
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_imageStream.Seek(-12, SeekOrigin.End);
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buffer = new byte[12];
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_imageStream.EnsureRead(buffer, 0, 12);
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footerV2.ChunkId = BigEndianBitConverter.ToUInt32(buffer, 0);
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footerV2.FirstChunkOffset = BigEndianBitConverter.ToUInt64(buffer, 4);
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AaruConsole.DebugWriteLine(MODULE_NAME, "imageStream.Length = {0}", _imageStream.Length);
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AaruConsole.DebugWriteLine(MODULE_NAME, "footerV1.ChunkID = 0x{0:X8}", footerV1.ChunkId);
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AaruConsole.DebugWriteLine(MODULE_NAME, "footerV1.FirstChunkOffset = {0}", footerV1.FirstChunkOffset);
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AaruConsole.DebugWriteLine(MODULE_NAME, "footerV2.ChunkID = 0x{0:X8}", footerV2.ChunkId);
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AaruConsole.DebugWriteLine(MODULE_NAME, "footerV2.FirstChunkOffset = {0}", footerV2.FirstChunkOffset);
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if(footerV2.ChunkId == NERO_FOOTER_V2 &&
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footerV2.FirstChunkOffset < (ulong)_imageStream.Length)
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return true;
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return footerV1.ChunkId == NERO_FOOTER_V1 && footerV1.FirstChunkOffset < (ulong)_imageStream.Length;
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}
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} |