140 lines
6.9 KiB
C#
140 lines
6.9 KiB
C#
//
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// Copyright (c) 2008-2011, Kenneth Bell
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Text;
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using DiscUtils.Internal;
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using DiscUtils.Streams;
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namespace DiscUtils.Iso9660
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{
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internal class CommonVolumeDescriptor : BaseVolumeDescriptor
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{
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public string AbstractFileIdentifier;
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public string ApplicationIdentifier;
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public string BibliographicFileIdentifier;
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public Encoding CharacterEncoding;
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public string CopyrightFileIdentifier;
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public DateTime CreationDateAndTime;
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public string DataPreparerIdentifier;
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public DateTime EffectiveDateAndTime;
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public DateTime ExpirationDateAndTime;
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public byte FileStructureVersion;
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public ushort LogicalBlockSize;
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public DateTime ModificationDateAndTime;
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public uint OptionalTypeLPathTableLocation;
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public uint OptionalTypeMPathTableLocation;
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public uint PathTableSize;
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public string PublisherIdentifier;
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public DirectoryRecord RootDirectory;
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public string SystemIdentifier;
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public uint TypeLPathTableLocation;
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public uint TypeMPathTableLocation;
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public string VolumeIdentifier;
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public ushort VolumeSequenceNumber;
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public string VolumeSetIdentifier;
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public ushort VolumeSetSize;
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public uint VolumeSpaceSize;
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public CommonVolumeDescriptor(byte[] src, int offset, Encoding enc)
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: base(src, offset)
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{
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CharacterEncoding = enc;
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SystemIdentifier = IsoUtilities.ReadChars(src, offset + 8, 32, CharacterEncoding);
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VolumeIdentifier = IsoUtilities.ReadChars(src, offset + 40, 32, CharacterEncoding);
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VolumeSpaceSize = IsoUtilities.ToUInt32FromBoth(src, offset + 80);
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VolumeSetSize = IsoUtilities.ToUInt16FromBoth(src, offset + 120);
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VolumeSequenceNumber = IsoUtilities.ToUInt16FromBoth(src, offset + 124);
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LogicalBlockSize = IsoUtilities.ToUInt16FromBoth(src, offset + 128);
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PathTableSize = IsoUtilities.ToUInt32FromBoth(src, offset + 132);
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TypeLPathTableLocation = EndianUtilities.ToUInt32LittleEndian(src, offset + 140);
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OptionalTypeLPathTableLocation = EndianUtilities.ToUInt32LittleEndian(src, offset + 144);
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TypeMPathTableLocation = Utilities.BitSwap(EndianUtilities.ToUInt32LittleEndian(src, offset + 148));
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OptionalTypeMPathTableLocation = Utilities.BitSwap(EndianUtilities.ToUInt32LittleEndian(src, offset + 152));
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DirectoryRecord.ReadFrom(src, offset + 156, CharacterEncoding, out RootDirectory);
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VolumeSetIdentifier = IsoUtilities.ReadChars(src, offset + 190, 318 - 190, CharacterEncoding);
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PublisherIdentifier = IsoUtilities.ReadChars(src, offset + 318, 446 - 318, CharacterEncoding);
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DataPreparerIdentifier = IsoUtilities.ReadChars(src, offset + 446, 574 - 446, CharacterEncoding);
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ApplicationIdentifier = IsoUtilities.ReadChars(src, offset + 574, 702 - 574, CharacterEncoding);
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CopyrightFileIdentifier = IsoUtilities.ReadChars(src, offset + 702, 739 - 702, CharacterEncoding);
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AbstractFileIdentifier = IsoUtilities.ReadChars(src, offset + 739, 776 - 739, CharacterEncoding);
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BibliographicFileIdentifier = IsoUtilities.ReadChars(src, offset + 776, 813 - 776, CharacterEncoding);
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CreationDateAndTime = IsoUtilities.ToDateTimeFromVolumeDescriptorTime(src, offset + 813);
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ModificationDateAndTime = IsoUtilities.ToDateTimeFromVolumeDescriptorTime(src, offset + 830);
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ExpirationDateAndTime = IsoUtilities.ToDateTimeFromVolumeDescriptorTime(src, offset + 847);
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EffectiveDateAndTime = IsoUtilities.ToDateTimeFromVolumeDescriptorTime(src, offset + 864);
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FileStructureVersion = src[offset + 881];
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}
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public CommonVolumeDescriptor(
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VolumeDescriptorType type,
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byte version,
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uint volumeSpaceSize,
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uint pathTableSize,
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uint typeLPathTableLocation,
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uint typeMPathTableLocation,
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uint rootDirExtentLocation,
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uint rootDirDataLength,
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DateTime buildTime,
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Encoding enc)
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: base(type, version)
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{
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CharacterEncoding = enc;
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SystemIdentifier = string.Empty;
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VolumeIdentifier = string.Empty;
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VolumeSpaceSize = volumeSpaceSize;
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VolumeSetSize = 1;
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VolumeSequenceNumber = 1;
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LogicalBlockSize = IsoUtilities.SectorSize;
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PathTableSize = pathTableSize;
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TypeLPathTableLocation = typeLPathTableLocation;
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////OptionalTypeLPathTableLocation = 0;
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TypeMPathTableLocation = typeMPathTableLocation;
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////OptionalTypeMPathTableLocation = 0;
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RootDirectory = new DirectoryRecord();
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RootDirectory.ExtendedAttributeRecordLength = 0;
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RootDirectory.LocationOfExtent = rootDirExtentLocation;
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RootDirectory.DataLength = rootDirDataLength;
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RootDirectory.RecordingDateAndTime = buildTime;
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RootDirectory.Flags = FileFlags.Directory;
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RootDirectory.FileUnitSize = 0;
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RootDirectory.InterleaveGapSize = 0;
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RootDirectory.VolumeSequenceNumber = 1;
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RootDirectory.FileIdentifier = "\0";
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VolumeSetIdentifier = string.Empty;
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PublisherIdentifier = string.Empty;
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DataPreparerIdentifier = string.Empty;
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ApplicationIdentifier = string.Empty;
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CopyrightFileIdentifier = string.Empty;
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AbstractFileIdentifier = string.Empty;
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BibliographicFileIdentifier = string.Empty;
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CreationDateAndTime = buildTime;
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ModificationDateAndTime = buildTime;
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ExpirationDateAndTime = DateTime.MinValue;
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EffectiveDateAndTime = buildTime;
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FileStructureVersion = 1; // V1
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}
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}
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} |