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119 lines
4.2 KiB
C#
119 lines
4.2 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Xattr.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Apple DOS filesystem plugin.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Methods to handle Apple DOS extended attributes (file type).
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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;
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using System.Collections.Generic;
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using Aaru.CommonTypes.Enums;
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namespace Aaru.Filesystems;
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public sealed partial class AppleDOS
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{
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#region IReadOnlyFilesystem Members
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/// <inheritdoc />
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public ErrorNumber ListXAttr(string path, out List<string> xattrs)
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{
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xattrs = null;
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if(!_mounted) return ErrorNumber.AccessDenied;
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string[] pathElements = path.Split(['/'], StringSplitOptions.RemoveEmptyEntries);
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if(pathElements.Length != 1) return ErrorNumber.NotSupported;
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string filename = pathElements[0].ToUpperInvariant();
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if(filename.Length > 30) return ErrorNumber.NameTooLong;
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xattrs = [];
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if(_debug &&
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(string.Compare(path, "$", StringComparison.InvariantCulture) == 0 ||
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string.Compare(path, "$Boot", StringComparison.InvariantCulture) == 0 ||
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string.Compare(path, "$Vtoc", StringComparison.InvariantCulture) == 0)) {}
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else
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{
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if(!_catalogCache.ContainsKey(filename)) return ErrorNumber.NoSuchFile;
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xattrs.Add("com.apple.dos.type");
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if(_debug) xattrs.Add("com.apple.dos.tracksectorlist");
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}
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return ErrorNumber.NoError;
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}
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/// <inheritdoc />
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public ErrorNumber GetXattr(string path, string xattr, ref byte[] buf)
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{
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if(!_mounted) return ErrorNumber.AccessDenied;
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string[] pathElements = path.Split(['/'], StringSplitOptions.RemoveEmptyEntries);
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if(pathElements.Length != 1) return ErrorNumber.NotSupported;
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string filename = pathElements[0].ToUpperInvariant();
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if(filename.Length > 30) return ErrorNumber.NameTooLong;
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if(_debug &&
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(string.Compare(path, "$", StringComparison.InvariantCulture) == 0 ||
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string.Compare(path, "$Boot", StringComparison.InvariantCulture) == 0 ||
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string.Compare(path, "$Vtoc", StringComparison.InvariantCulture) == 0))
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return ErrorNumber.NoSuchExtendedAttribute;
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if(!_catalogCache.ContainsKey(filename)) return ErrorNumber.NoSuchFile;
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if(string.Compare(xattr, "com.apple.dos.type", StringComparison.InvariantCulture) == 0)
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{
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if(!_fileTypeCache.TryGetValue(filename, out byte type)) return ErrorNumber.InvalidArgument;
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buf = new byte[1];
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buf[0] = type;
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return ErrorNumber.NoError;
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}
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if(string.Compare(xattr, "com.apple.dos.tracksectorlist", StringComparison.InvariantCulture) != 0 || !_debug)
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return ErrorNumber.NoSuchExtendedAttribute;
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if(!_extentCache.TryGetValue(filename, out byte[] ts)) return ErrorNumber.InvalidArgument;
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buf = new byte[ts.Length];
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Array.Copy(ts, 0, buf, 0, buf.Length);
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return ErrorNumber.NoError;
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}
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#endregion
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} |