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115 lines
4.9 KiB
C#
115 lines
4.9 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Structs.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Apple Macintosh File System plugin.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Apple Macintosh File System 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 © 2011-2021 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Diagnostics.CodeAnalysis;
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#pragma warning disable 169
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namespace Aaru.Filesystems
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{
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// Information from Inside Macintosh Volume II
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[SuppressMessage("ReSharper", "InconsistentNaming"), SuppressMessage("ReSharper", "NotAccessedField.Local")]
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public sealed partial class AppleMFS
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{
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/// <summary>Master Directory Block, should be at offset 0x0400 bytes in volume</summary>
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struct MasterDirectoryBlock
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{
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/// <summary>0x000, Signature, 0xD2D7</summary>
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public ushort drSigWord;
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/// <summary>0x002, Volume creation date</summary>
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public uint drCrDate;
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/// <summary>0x006, Volume last backup date</summary>
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public uint drLsBkUp;
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/// <summary>0x00A, Volume attributes</summary>
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public AppleCommon.VolumeAttributes drAtrb;
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/// <summary>0x00C, Volume number of files</summary>
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public ushort drNmFls;
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/// <summary>0x00E, First directory sector</summary>
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public ushort drDirSt;
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/// <summary>0x010, Length of directory in sectors</summary>
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public ushort drBlLen;
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/// <summary>0x012, Volume allocation blocks</summary>
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public ushort drNmAlBlks;
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/// <summary>0x014, Size of allocation blocks</summary>
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public uint drAlBlkSiz;
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/// <summary>0x018, Number of bytes to allocate</summary>
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public uint drClpSiz;
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/// <summary>0x01C, First allocation block in block map</summary>
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public ushort drAlBlSt;
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/// <summary>0x01E. Next unused file number</summary>
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public uint drNxtFNum;
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/// <summary>0x022, Number of unused allocation blocks</summary>
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public ushort drFreeBks;
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/// <summary>0x024, Length of volume name</summary>
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public byte drVNSiz;
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/// <summary>0x025, Characters of volume name</summary>
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public string drVN;
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}
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[Flags]
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enum FileFlags : byte
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{
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Locked = 0x01, Used = 0x80
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}
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struct FileEntry
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{
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/// <summary>0x00, Entry flags</summary>
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public FileFlags flFlags;
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/// <summary>0x01, Version number</summary>
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public byte flTyp;
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/// <summary>0x02, FinderInfo</summary>
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public AppleCommon.FInfo flUsrWds;
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/// <summary>0x12, file ID</summary>
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public uint flFlNum;
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/// <summary>0x16, first allocation block of data fork</summary>
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public ushort flStBlk;
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/// <summary>0x18, logical end-of-file of data fork</summary>
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public uint flLgLen;
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/// <summary>0x1C, physical end-of-file of data fork</summary>
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public uint flPyLen;
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/// <summary>0x20, first allocation block of resource fork</summary>
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public ushort flRStBlk;
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/// <summary>0x22, logical end-of-file of resource fork</summary>
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public uint flRLgLen;
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/// <summary>0x26, physical end-of-file of resource fork</summary>
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public uint flRPyLen;
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/// <summary>0x2A, date and time of creation</summary>
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public uint flCrDat;
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/// <summary>0x2E, date and time of last modification</summary>
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public uint flMdDat;
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/// <summary>0x32, file name prefixed with length</summary>
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public byte[] flNam;
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}
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}
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} |