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361 lines
18 KiB
C#
361 lines
18 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : Ls.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Verbs.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Implements the 'ls' verb.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2019 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 System.Text;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.CommonTypes.Enums;
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using DiscImageChef.CommonTypes.Interfaces;
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using DiscImageChef.CommonTypes.Structs;
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using DiscImageChef.Console;
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using DiscImageChef.Core;
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using Mono.Options;
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namespace DiscImageChef.Commands
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{
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class LsCommand : Command
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{
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string encodingName;
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string inputFile;
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bool longFormat;
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string pluginOptions;
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bool showHelp;
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public LsCommand() : base("ls", "Lists files in disc image.")
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{
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Options = new OptionSet
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{
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$"{MainClass.AssemblyTitle} {MainClass.AssemblyVersion?.InformationalVersion}",
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$"{MainClass.AssemblyCopyright}",
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"",
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$"usage: DiscImageChef {Name} [OPTIONS] imagefile",
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"",
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Help,
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{"encoding|e=", "Name of character encoding to use.", s => encodingName = s},
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{"long|l", "Uses long format.", b => longFormat = b != null},
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{
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"options|O=", "Comma separated name=value pairs of options to pass to filesystem plugin.",
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s => pluginOptions = s
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},
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{"help|h|?", "Show this message and exit.", v => showHelp = v != null}
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};
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}
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public override int Invoke(IEnumerable<string> arguments)
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{
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List<string> extra = Options.Parse(arguments);
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if(showHelp)
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{
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Options.WriteOptionDescriptions(CommandSet.Out);
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return (int)ErrorNumber.HelpRequested;
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}
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MainClass.PrintCopyright();
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if(MainClass.Debug) DicConsole.DebugWriteLineEvent += System.Console.Error.WriteLine;
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if(MainClass.Verbose) DicConsole.VerboseWriteLineEvent += System.Console.WriteLine;
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if(extra.Count > 1)
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{
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DicConsole.ErrorWriteLine("Too many arguments.");
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return (int)ErrorNumber.UnexpectedArgumentCount;
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}
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if(extra.Count == 0)
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{
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DicConsole.ErrorWriteLine("Missing input image.");
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return (int)ErrorNumber.MissingArgument;
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}
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inputFile = extra[0];
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DicConsole.DebugWriteLine("Ls command", "--debug={0}", MainClass.Debug);
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DicConsole.DebugWriteLine("Ls command", "--encoding={0}", encodingName);
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DicConsole.DebugWriteLine("Ls command", "--input={0}", inputFile);
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DicConsole.DebugWriteLine("Ls command", "--options={0}", pluginOptions);
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DicConsole.DebugWriteLine("Ls command", "--verbose={0}", MainClass.Verbose);
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Statistics.AddCommand("ls");
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FiltersList filtersList = new FiltersList();
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IFilter inputFilter = filtersList.GetFilter(inputFile);
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Dictionary<string, string> parsedOptions = Core.Options.Parse(pluginOptions);
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DicConsole.DebugWriteLine("Ls command", "Parsed options:");
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foreach(KeyValuePair<string, string> parsedOption in parsedOptions)
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DicConsole.DebugWriteLine("Ls command", "{0} = {1}", parsedOption.Key, parsedOption.Value);
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parsedOptions.Add("debug", MainClass.Debug.ToString());
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if(inputFilter == null)
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{
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DicConsole.ErrorWriteLine("Cannot open specified file.");
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return (int)ErrorNumber.CannotOpenFile;
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}
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Encoding encoding = null;
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if(encodingName != null)
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try
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{
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encoding = Claunia.Encoding.Encoding.GetEncoding(encodingName);
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if(MainClass.Verbose) DicConsole.VerboseWriteLine("Using encoding for {0}.", encoding.EncodingName);
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}
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catch(ArgumentException)
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{
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DicConsole.ErrorWriteLine("Specified encoding is not supported.");
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return (int)ErrorNumber.EncodingUnknown;
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}
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PluginBase plugins = GetPluginBase.Instance;
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try
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{
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IMediaImage imageFormat = ImageFormat.Detect(inputFilter);
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if(imageFormat == null)
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{
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DicConsole.WriteLine("Image format not identified, not proceeding with analysis.");
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return (int)ErrorNumber.UnrecognizedFormat;
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}
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if(MainClass.Verbose)
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DicConsole.VerboseWriteLine("Image format identified by {0} ({1}).", imageFormat.Name,
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imageFormat.Id);
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else DicConsole.WriteLine("Image format identified by {0}.", imageFormat.Name);
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try
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{
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if(!imageFormat.Open(inputFilter))
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{
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DicConsole.WriteLine("Unable to open image format");
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DicConsole.WriteLine("No error given");
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return (int)ErrorNumber.CannotOpenFormat;
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}
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DicConsole.DebugWriteLine("Ls command", "Correctly opened image file.");
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DicConsole.DebugWriteLine("Ls command", "Image without headers is {0} bytes.",
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imageFormat.Info.ImageSize);
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DicConsole.DebugWriteLine("Ls command", "Image has {0} sectors.", imageFormat.Info.Sectors);
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DicConsole.DebugWriteLine("Ls command", "Image identifies disk type as {0}.",
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imageFormat.Info.MediaType);
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Statistics.AddMediaFormat(imageFormat.Format);
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Statistics.AddMedia(imageFormat.Info.MediaType, false);
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Statistics.AddFilter(inputFilter.Name);
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}
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catch(Exception ex)
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{
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DicConsole.ErrorWriteLine("Unable to open image format");
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DicConsole.ErrorWriteLine("Error: {0}", ex.Message);
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return (int)ErrorNumber.CannotOpenFormat;
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}
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List<Partition> partitions = Core.Partitions.GetAll(imageFormat);
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Core.Partitions.AddSchemesToStats(partitions);
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List<string> idPlugins;
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IReadOnlyFilesystem plugin;
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Errno error;
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if(partitions.Count == 0) DicConsole.DebugWriteLine("Ls command", "No partitions found");
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else
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{
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DicConsole.WriteLine("{0} partitions found.", partitions.Count);
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for(int i = 0; i < partitions.Count; i++)
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{
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DicConsole.WriteLine();
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DicConsole.WriteLine("Partition {0}:", partitions[i].Sequence);
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DicConsole.WriteLine("Identifying filesystem on partition");
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Core.Filesystems.Identify(imageFormat, out idPlugins, partitions[i]);
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if(idPlugins.Count == 0) DicConsole.WriteLine("Filesystem not identified");
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else if(idPlugins.Count > 1)
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{
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DicConsole.WriteLine($"Identified by {idPlugins.Count} plugins");
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foreach(string pluginName in idPlugins)
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if(plugins.ReadOnlyFilesystems.TryGetValue(pluginName, out plugin))
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{
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DicConsole.WriteLine($"As identified by {plugin.Name}.");
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IReadOnlyFilesystem fs = (IReadOnlyFilesystem)plugin
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.GetType()
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.GetConstructor(Type.EmptyTypes)
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?.Invoke(new object[] { });
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if(fs == null) continue;
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error = fs.Mount(imageFormat, partitions[i], encoding, parsedOptions);
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if(error == Errno.NoError)
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{
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error = fs.ReadDir("/", out List<string> rootDir);
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if(error == Errno.NoError)
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foreach(string entry in rootDir)
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DicConsole.WriteLine("{0}", entry);
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}",
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error.ToString());
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else
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DicConsole.ErrorWriteLine("Unable to mount device, error {0}",
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error.ToString());
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}
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}
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else
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{
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plugins.ReadOnlyFilesystems.TryGetValue(idPlugins[0], out plugin);
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if(plugin == null) continue;
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DicConsole.WriteLine($"Identified by {plugin.Name}.");
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IReadOnlyFilesystem fs = (IReadOnlyFilesystem)plugin
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.GetType().GetConstructor(Type.EmptyTypes)
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?.Invoke(new object[] { });
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if(fs == null) continue;
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error = fs.Mount(imageFormat, partitions[i], encoding, parsedOptions);
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if(error == Errno.NoError)
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{
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error = fs.ReadDir("/", out List<string> rootDir);
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if(error == Errno.NoError)
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foreach(string entry in rootDir)
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DicConsole.WriteLine("{0}", entry);
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString());
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}
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}
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}
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Partition wholePart = new Partition
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{
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Name = "Whole device",
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Length = imageFormat.Info.Sectors,
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Size = imageFormat.Info.Sectors * imageFormat.Info.SectorSize
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};
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Core.Filesystems.Identify(imageFormat, out idPlugins, wholePart);
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if(idPlugins.Count == 0) DicConsole.WriteLine("Filesystem not identified");
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else if(idPlugins.Count > 1)
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{
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DicConsole.WriteLine($"Identified by {idPlugins.Count} plugins");
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foreach(string pluginName in idPlugins)
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if(plugins.ReadOnlyFilesystems.TryGetValue(pluginName, out plugin))
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{
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DicConsole.WriteLine($"As identified by {plugin.Name}.");
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IReadOnlyFilesystem fs = (IReadOnlyFilesystem)plugin
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.GetType().GetConstructor(Type.EmptyTypes)
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?.Invoke(new object[] { });
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if(fs == null) continue;
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error = fs.Mount(imageFormat, wholePart, encoding, parsedOptions);
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if(error == Errno.NoError)
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{
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error = fs.ReadDir("/", out List<string> rootDir);
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if(error == Errno.NoError)
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foreach(string entry in rootDir)
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DicConsole.WriteLine("{0}", entry);
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString());
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}
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}
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else
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{
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plugins.ReadOnlyFilesystems.TryGetValue(idPlugins[0], out plugin);
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if(plugin != null)
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{
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DicConsole.WriteLine($"Identified by {plugin.Name}.");
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IReadOnlyFilesystem fs =
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(IReadOnlyFilesystem)plugin
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.GetType().GetConstructor(Type.EmptyTypes)?.Invoke(new object[] { });
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if(fs != null)
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{
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error = fs.Mount(imageFormat, wholePart, encoding, parsedOptions);
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if(error == Errno.NoError)
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{
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error = fs.ReadDir("/", out List<string> rootDir);
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if(error == Errno.NoError)
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foreach(string entry in rootDir)
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if(longFormat)
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{
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error = fs.Stat(entry, out FileEntryInfo stat);
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if(error == Errno.NoError)
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{
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DicConsole.WriteLine("{0}\t{1}\t{2} bytes\t{3}", stat.CreationTimeUtc,
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stat.Inode, stat.Length, entry);
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error = fs.ListXAttr(entry, out List<string> xattrs);
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if(error != Errno.NoError) continue;
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foreach(string xattr in xattrs)
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{
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byte[] xattrBuf = new byte[0];
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error = fs.GetXattr(entry, xattr, ref xattrBuf);
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if(error == Errno.NoError)
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DicConsole.WriteLine("\t\t{0}\t{1} bytes", xattr,
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xattrBuf.Length);
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}
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}
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else DicConsole.WriteLine("{0}", entry);
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}
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else
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DicConsole.WriteLine("{0}", entry);
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString());
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}
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}
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}
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}
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catch(Exception ex)
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{
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DicConsole.ErrorWriteLine($"Error reading file: {ex.Message}");
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DicConsole.DebugWriteLine("Ls command", ex.StackTrace);
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return (int)ErrorNumber.UnexpectedException;
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}
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return (int)ErrorNumber.NoError;
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}
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}
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} |