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107 lines
4.4 KiB
C#
107 lines
4.4 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Info.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : HP Logical Interchange Format plugin
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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.Text;
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using Aaru.CommonTypes.AaruMetadata;
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using Aaru.CommonTypes.Enums;
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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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using Partition = Aaru.CommonTypes.Partition;
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namespace Aaru.Filesystems;
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// Information from http://www.hp9845.net/9845/projects/hpdir/#lif_filesystem
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/// <inheritdoc />
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/// <summary>Implements detection of the LIF filesystem</summary>
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public sealed partial class LIF
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{
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#region IFilesystem Members
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/// <inheritdoc />
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public bool Identify(IMediaImage imagePlugin, Partition partition)
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{
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if(imagePlugin.Info.SectorSize < 256) return false;
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ErrorNumber errno = imagePlugin.ReadSector(partition.Start, out byte[] sector);
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if(errno != ErrorNumber.NoError) return false;
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SystemBlock lifSb = Marshal.ByteArrayToStructureBigEndian<SystemBlock>(sector);
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AaruLogging.Debug(MODULE_NAME, Localization.magic_0_expected_1, lifSb.magic, LIF_MAGIC);
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return lifSb.magic == LIF_MAGIC;
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}
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/// <inheritdoc />
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public void GetInformation(IMediaImage imagePlugin, Partition partition, Encoding encoding, out string information,
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out FileSystem metadata)
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{
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encoding ??= Encoding.GetEncoding("iso-8859-15");
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information = "";
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metadata = new FileSystem();
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if(imagePlugin.Info.SectorSize < 256) return;
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ErrorNumber errno = imagePlugin.ReadSector(partition.Start, out byte[] sector);
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if(errno != ErrorNumber.NoError) return;
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SystemBlock lifSb = Marshal.ByteArrayToStructureBigEndian<SystemBlock>(sector);
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if(lifSb.magic != LIF_MAGIC) return;
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var sb = new StringBuilder();
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sb.AppendLine(Localization.HP_Logical_Interchange_Format);
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sb.AppendFormat(Localization.Directory_starts_at_cluster_0, lifSb.directoryStart).AppendLine();
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sb.AppendFormat(Localization.LIF_identifier_0, lifSb.lifId).AppendLine();
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sb.AppendFormat(Localization.Directory_size_0_clusters, lifSb.directorySize).AppendLine();
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sb.AppendFormat(Localization.LIF_version_0, lifSb.lifVersion).AppendLine();
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// How is this related to volume size? I have only CDs to test and makes no sense there
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sb.AppendFormat(Localization._0_tracks, lifSb.tracks).AppendLine();
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sb.AppendFormat(Localization._0_heads, lifSb.heads).AppendLine();
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sb.AppendFormat(Localization._0_sectors, lifSb.sectors).AppendLine();
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sb.AppendFormat(Localization.Volume_name_0, StringHandlers.CToString(lifSb.volumeLabel, encoding)).AppendLine();
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sb.AppendFormat(Localization.Volume_created_on_0, DateHandlers.LifToDateTime(lifSb.creationDate)).AppendLine();
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information = sb.ToString();
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metadata = new FileSystem
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{
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Type = FS_TYPE,
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ClusterSize = 256,
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Clusters = partition.Size / 256,
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CreationDate = DateHandlers.LifToDateTime(lifSb.creationDate),
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VolumeName = StringHandlers.CToString(lifSb.volumeLabel, encoding)
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};
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}
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#endregion
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} |