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96 lines
4.1 KiB
C#
96 lines
4.1 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Joliet.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : ISO9660 filesystem plugin.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Joliet extensions structures.
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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 © 2011-2022 Natalia Portillo
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// In the loving memory of Facunda "Tata" Suárez Domínguez, R.I.P. 2019/07/24
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// ****************************************************************************/
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using System;
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using System.Text;
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using Aaru.Helpers;
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namespace Aaru.Filesystems;
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public sealed partial class ISO9660
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{
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static DecodedVolumeDescriptor DecodeJolietDescriptor(PrimaryVolumeDescriptor jolietvd)
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{
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var decodedVd = new DecodedVolumeDescriptor
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{
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SystemIdentifier = Encoding.BigEndianUnicode.GetString(jolietvd.system_id).Replace('\u0000', ' ').TrimEnd(),
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VolumeIdentifier = Encoding.BigEndianUnicode.GetString(jolietvd.volume_id).Replace('\u0000', ' ').TrimEnd(),
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VolumeSetIdentifier = Encoding.BigEndianUnicode.GetString(jolietvd.volume_set_id).Replace('\u0000', ' ').
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TrimEnd(),
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PublisherIdentifier = Encoding.BigEndianUnicode.GetString(jolietvd.publisher_id).Replace('\u0000', ' ').
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TrimEnd(),
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DataPreparerIdentifier = Encoding.BigEndianUnicode.GetString(jolietvd.preparer_id).Replace('\u0000', ' ').
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TrimEnd(),
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ApplicationIdentifier = Encoding.BigEndianUnicode.GetString(jolietvd.application_id).Replace('\u0000', ' ').
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TrimEnd()
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};
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if(jolietvd.creation_date[0] < 0x31 ||
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jolietvd.creation_date[0] > 0x39)
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decodedVd.CreationTime = DateTime.MinValue;
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else
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decodedVd.CreationTime = DateHandlers.Iso9660ToDateTime(jolietvd.creation_date);
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if(jolietvd.modification_date[0] < 0x31 ||
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jolietvd.modification_date[0] > 0x39)
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decodedVd.HasModificationTime = false;
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else
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{
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decodedVd.HasModificationTime = true;
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decodedVd.ModificationTime = DateHandlers.Iso9660ToDateTime(jolietvd.modification_date);
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}
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if(jolietvd.expiration_date[0] < 0x31 ||
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jolietvd.expiration_date[0] > 0x39)
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decodedVd.HasExpirationTime = false;
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else
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{
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decodedVd.HasExpirationTime = true;
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decodedVd.ExpirationTime = DateHandlers.Iso9660ToDateTime(jolietvd.expiration_date);
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}
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if(jolietvd.effective_date[0] < 0x31 ||
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jolietvd.effective_date[0] > 0x39)
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decodedVd.HasEffectiveTime = false;
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else
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{
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decodedVd.HasEffectiveTime = true;
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decodedVd.EffectiveTime = DateHandlers.Iso9660ToDateTime(jolietvd.effective_date);
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}
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decodedVd.Blocks = jolietvd.volume_space_size;
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decodedVd.BlockSize = jolietvd.logical_block_size;
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return decodedVd;
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}
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} |