// /*************************************************************************** // The Disc Image Chef // ---------------------------------------------------------------------------- // // Filename : Compare.cs // Author(s) : Natalia Portillo // // Component : Verbs. // // --[ Description ] ---------------------------------------------------------- // // Implements the 'compare' verb. // // --[ License ] -------------------------------------------------------------- // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as // published by the Free Software Foundation, either version 3 of the // License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program. If not, see . // // ---------------------------------------------------------------------------- // Copyright © 2011-2018 Natalia Portillo // ****************************************************************************/ using System; using System.Collections.Generic; using System.Text; using DiscImageChef.CommonTypes; using DiscImageChef.CommonTypes.Enums; using DiscImageChef.CommonTypes.Interfaces; using DiscImageChef.CommonTypes.Structs; using DiscImageChef.Console; using DiscImageChef.Core; using DiscImageChef.Filters; namespace DiscImageChef.Commands { static class Compare { internal static void DoCompare(CompareOptions options) { DicConsole.DebugWriteLine("Compare command", "--debug={0}", options.Debug); DicConsole.DebugWriteLine("Compare command", "--verbose={0}", options.Verbose); DicConsole.DebugWriteLine("Compare command", "--input1={0}", options.InputFile1); DicConsole.DebugWriteLine("Compare command", "--input2={0}", options.InputFile2); FiltersList filtersList = new FiltersList(); IFilter inputFilter1 = filtersList.GetFilter(options.InputFile1); filtersList = new FiltersList(); IFilter inputFilter2 = filtersList.GetFilter(options.InputFile2); if(inputFilter1 == null) { DicConsole.ErrorWriteLine("Cannot open input file 1"); return; } if(inputFilter2 == null) { DicConsole.ErrorWriteLine("Cannot open input file 2"); return; } IMediaImage input1Format = ImageFormat.Detect(inputFilter1); IMediaImage input2Format = ImageFormat.Detect(inputFilter2); if(input1Format == null) { DicConsole.ErrorWriteLine("Input file 1 format not identified, not proceeding with comparison."); return; } if(options.Verbose) DicConsole.VerboseWriteLine("Input file 1 format identified by {0} ({1}).", input1Format.Name, input1Format.Id); else DicConsole.WriteLine("Input file 1 format identified by {0}.", input1Format.Name); if(input2Format == null) { DicConsole.ErrorWriteLine("Input file 2 format not identified, not proceeding with comparison."); return; } if(options.Verbose) DicConsole.VerboseWriteLine("Input file 2 format identified by {0} ({1}).", input2Format.Name, input2Format.Id); else DicConsole.WriteLine("Input file 2 format identified by {0}.", input2Format.Name); input1Format.Open(inputFilter1); input2Format.Open(inputFilter2); Core.Statistics.AddMediaFormat(input1Format.Format); Core.Statistics.AddMediaFormat(input2Format.Format); Core.Statistics.AddMedia(input1Format.Info.MediaType, false); Core.Statistics.AddMedia(input2Format.Info.MediaType, false); Core.Statistics.AddFilter(inputFilter1.Name); Core.Statistics.AddFilter(inputFilter2.Name); StringBuilder sb = new StringBuilder(); if(options.Verbose) { sb.AppendLine("\tDisc image 1\tDisc image 2"); sb.AppendLine("================================"); sb.AppendFormat("File\t{0}\t{1}", options.InputFile1, options.InputFile2).AppendLine(); sb.AppendFormat("Disc image format\t{0}\t{1}", input1Format.Name, input2Format.Name).AppendLine(); } else { sb.AppendFormat("Disc image 1: {0}", options.InputFile1).AppendLine(); sb.AppendFormat("Disc image 2: {0}", options.InputFile2).AppendLine(); } bool imagesDiffer = false; CommonTypes.Structs.ImageInfo image1Info = new CommonTypes.Structs.ImageInfo(); CommonTypes.Structs.ImageInfo image2Info = new CommonTypes.Structs.ImageInfo(); List image1Sessions = new List(); List image2Sessions = new List(); Dictionary image1DiskTags = new Dictionary(); Dictionary image2DiskTags = new Dictionary(); image1Info.HasPartitions = input1Format.Info.HasPartitions; #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { image1Sessions = input1Format.Sessions; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body image1Info.HasSessions |= image1Sessions?.Count > 0; image1Info.ImageSize = input1Format.Info.ImageSize; image1Info.Sectors = input1Format.Info.Sectors; image1Info.SectorSize = input1Format.Info.SectorSize; image1Info.CreationTime = input1Format.Info.CreationTime; image1Info.LastModificationTime = input1Format.Info.LastModificationTime; image1Info.MediaType = input1Format.Info.MediaType; image1Info.Version = input1Format.Info.Version; image1Info.Application = input1Format.Info.Application; image1Info.ApplicationVersion = input1Format.Info.ApplicationVersion; image1Info.Creator = input1Format.Info.Creator; image1Info.MediaTitle = input1Format.Info.MediaTitle; image1Info.Comments = input1Format.Info.Comments; image1Info.MediaManufacturer = input1Format.Info.MediaManufacturer; image1Info.MediaModel = input1Format.Info.MediaModel; image1Info.MediaSerialNumber = input1Format.Info.MediaSerialNumber; image1Info.MediaBarcode = input1Format.Info.MediaBarcode; image1Info.MediaPartNumber = input1Format.Info.MediaPartNumber; image1Info.MediaSequence = input1Format.Info.MediaSequence; image1Info.LastMediaSequence = input1Format.Info.LastMediaSequence; image1Info.DriveManufacturer = input1Format.Info.DriveManufacturer; image1Info.DriveModel = input1Format.Info.DriveModel; image1Info.DriveSerialNumber = input1Format.Info.DriveSerialNumber; image1Info.DriveFirmwareRevision = input1Format.Info.DriveFirmwareRevision; foreach(MediaTagType disktag in Enum.GetValues(typeof(MediaTagType))) { try { byte[] temparray = input1Format.ReadDiskTag(disktag); image1DiskTags.Add(disktag, temparray); } #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body } image2Info.HasPartitions = input2Format.Info.HasPartitions; #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { image2Sessions = input2Format.Sessions; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body image2Info.HasSessions |= image2Sessions?.Count > 0; image2Info.ImageSize = input2Format.Info.ImageSize; image2Info.Sectors = input2Format.Info.Sectors; image2Info.SectorSize = input2Format.Info.SectorSize; image2Info.CreationTime = input2Format.Info.CreationTime; image2Info.LastModificationTime = input2Format.Info.LastModificationTime; image2Info.MediaType = input2Format.Info.MediaType; image2Info.Version = input2Format.Info.Version; image2Info.Application = input2Format.Info.Application; image2Info.ApplicationVersion = input2Format.Info.ApplicationVersion; image2Info.Creator = input2Format.Info.Creator; image2Info.MediaTitle = input2Format.Info.MediaTitle; image2Info.Comments = input2Format.Info.Comments; image2Info.MediaManufacturer = input2Format.Info.MediaManufacturer; image2Info.MediaModel = input2Format.Info.MediaModel; image2Info.MediaSerialNumber = input2Format.Info.MediaSerialNumber; image2Info.MediaBarcode = input2Format.Info.MediaBarcode; image2Info.MediaPartNumber = input2Format.Info.MediaPartNumber; image2Info.MediaSequence = input2Format.Info.MediaSequence; image2Info.LastMediaSequence = input2Format.Info.LastMediaSequence; image2Info.DriveManufacturer = input2Format.Info.DriveManufacturer; image2Info.DriveModel = input2Format.Info.DriveModel; image2Info.DriveSerialNumber = input2Format.Info.DriveSerialNumber; image2Info.DriveFirmwareRevision = input2Format.Info.DriveFirmwareRevision; foreach(MediaTagType disktag in Enum.GetValues(typeof(MediaTagType))) { try { byte[] temparray = input2Format.ReadDiskTag(disktag); image2DiskTags.Add(disktag, temparray); } #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body } if(options.Verbose) { sb.AppendFormat("Has partitions?\t{0}\t{1}", image1Info.HasPartitions, image2Info.HasPartitions) .AppendLine(); sb.AppendFormat("Has sessions?\t{0}\t{1}", image1Info.HasSessions, image2Info.HasSessions).AppendLine(); sb.AppendFormat("Image size\t{0}\t{1}", image1Info.ImageSize, image2Info.ImageSize).AppendLine(); sb.AppendFormat("Sectors\t{0}\t{1}", image1Info.Sectors, image2Info.Sectors).AppendLine(); sb.AppendFormat("Sector size\t{0}\t{1}", image1Info.SectorSize, image2Info.SectorSize).AppendLine(); sb.AppendFormat("Creation time\t{0}\t{1}", image1Info.CreationTime, image2Info.CreationTime) .AppendLine(); sb.AppendFormat("Last modification time\t{0}\t{1}", image1Info.LastModificationTime, image2Info.LastModificationTime).AppendLine(); sb.AppendFormat("Disk type\t{0}\t{1}", image1Info.MediaType, image2Info.MediaType).AppendLine(); sb.AppendFormat("Image version\t{0}\t{1}", image1Info.Version, image2Info.Version).AppendLine(); sb.AppendFormat("Image application\t{0}\t{1}", image1Info.Application, image2Info.Application) .AppendLine(); sb.AppendFormat("Image application version\t{0}\t{1}", image1Info.ApplicationVersion, image2Info.ApplicationVersion).AppendLine(); sb.AppendFormat("Image creator\t{0}\t{1}", image1Info.Creator, image2Info.Creator).AppendLine(); sb.AppendFormat("Image name\t{0}\t{1}", image1Info.MediaTitle, image2Info.MediaTitle).AppendLine(); sb.AppendFormat("Image comments\t{0}\t{1}", image1Info.Comments, image2Info.Comments).AppendLine(); sb.AppendFormat("Disk manufacturer\t{0}\t{1}", image1Info.MediaManufacturer, image2Info.MediaManufacturer).AppendLine(); sb.AppendFormat("Disk model\t{0}\t{1}", image1Info.MediaModel, image2Info.MediaModel).AppendLine(); sb.AppendFormat("Disk serial number\t{0}\t{1}", image1Info.MediaSerialNumber, image2Info.MediaSerialNumber).AppendLine(); sb.AppendFormat("Disk barcode\t{0}\t{1}", image1Info.MediaBarcode, image2Info.MediaBarcode) .AppendLine(); sb.AppendFormat("Disk part no.\t{0}\t{1}", image1Info.MediaPartNumber, image2Info.MediaPartNumber) .AppendLine(); sb.AppendFormat("Disk sequence\t{0}\t{1}", image1Info.MediaSequence, image2Info.MediaSequence) .AppendLine(); sb.AppendFormat("Last disk on sequence\t{0}\t{1}", image1Info.LastMediaSequence, image2Info.LastMediaSequence).AppendLine(); sb.AppendFormat("Drive manufacturer\t{0}\t{1}", image1Info.DriveManufacturer, image2Info.DriveManufacturer).AppendLine(); sb.AppendFormat("Drive firmware revision\t{0}\t{1}", image1Info.DriveFirmwareRevision, image2Info.DriveFirmwareRevision).AppendLine(); sb.AppendFormat("Drive model\t{0}\t{1}", image1Info.DriveModel, image2Info.DriveModel).AppendLine(); sb.AppendFormat("Drive serial number\t{0}\t{1}", image1Info.DriveSerialNumber, image2Info.DriveSerialNumber).AppendLine(); foreach(MediaTagType disktag in Enum.GetValues(typeof(MediaTagType))) sb.AppendFormat("Has {0}?\t{1}\t{2}", disktag, image1DiskTags.ContainsKey(disktag), image2DiskTags.ContainsKey(disktag)).AppendLine(); } DicConsole.WriteLine("Comparing disk image characteristics"); if(image1Info.HasPartitions != image2Info.HasPartitions) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image partitioned status differ"); } if(image1Info.HasSessions != image2Info.HasSessions) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image session status differ"); } if(image1Info.ImageSize != image2Info.ImageSize) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image size differ"); } if(image1Info.Sectors != image2Info.Sectors) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image sectors differ"); } if(image1Info.SectorSize != image2Info.SectorSize) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image sector size differ"); } if(image1Info.CreationTime != image2Info.CreationTime) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image creation time differ"); } if(image1Info.LastModificationTime != image2Info.LastModificationTime) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image last modification time differ"); } if(image1Info.MediaType != image2Info.MediaType) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk type differ"); } if(image1Info.Version != image2Info.Version) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image version differ"); } if(image1Info.Application != image2Info.Application) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image application differ"); } if(image1Info.ApplicationVersion != image2Info.ApplicationVersion) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image application version differ"); } if(image1Info.Creator != image2Info.Creator) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image creator differ"); } if(image1Info.MediaTitle != image2Info.MediaTitle) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image name differ"); } if(image1Info.Comments != image2Info.Comments) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Image comments differ"); } if(image1Info.MediaManufacturer != image2Info.MediaManufacturer) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk manufacturer differ"); } if(image1Info.MediaModel != image2Info.MediaModel) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk model differ"); } if(image1Info.MediaSerialNumber != image2Info.MediaSerialNumber) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk serial number differ"); } if(image1Info.MediaBarcode != image2Info.MediaBarcode) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk barcode differ"); } if(image1Info.MediaPartNumber != image2Info.MediaPartNumber) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk part number differ"); } if(image1Info.MediaSequence != image2Info.MediaSequence) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Disk sequence differ"); } if(image1Info.LastMediaSequence != image2Info.LastMediaSequence) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Last disk in sequence differ"); } if(image1Info.DriveManufacturer != image2Info.DriveManufacturer) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Drive manufacturer differ"); } if(image1Info.DriveModel != image2Info.DriveModel) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Drive model differ"); } if(image1Info.DriveSerialNumber != image2Info.DriveSerialNumber) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Drive serial number differ"); } if(image1Info.DriveFirmwareRevision != image2Info.DriveFirmwareRevision) { imagesDiffer = true; if(!options.Verbose) sb.AppendLine("Drive firmware revision differ"); } ulong leastSectors; if(image1Info.Sectors < image2Info.Sectors) { imagesDiffer = true; leastSectors = image1Info.Sectors; if(!options.Verbose) sb.AppendLine("Image 2 has more sectors"); } else if(image1Info.Sectors > image2Info.Sectors) { imagesDiffer = true; leastSectors = image2Info.Sectors; if(!options.Verbose) sb.AppendLine("Image 1 has more sectors"); } else leastSectors = image1Info.Sectors; DicConsole.WriteLine("Comparing sectors..."); for(ulong sector = 0; sector < leastSectors; sector++) { DicConsole.Write("\rComparing sector {0} of {1}...", sector + 1, leastSectors); try { byte[] image1Sector = input1Format.ReadSector(sector); byte[] image2Sector = input2Format.ReadSector(sector); ArrayHelpers.CompareBytes(out bool different, out bool sameSize, image1Sector, image2Sector); if(different) { imagesDiffer = true; sb.AppendFormat("Sector {0} is different", sector).AppendLine(); } else if(!sameSize) { imagesDiffer = true; sb .AppendFormat("Sector {0} has different sizes ({1} bytes in image 1, {2} in image 2) but are otherwise identical", sector, image1Sector.LongLength, image2Sector.LongLength).AppendLine(); } } #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body } DicConsole.WriteLine(); sb.AppendLine(imagesDiffer ? "Images differ" : "Images do not differ"); DicConsole.WriteLine(sb.ToString()); Core.Statistics.AddCommand("compare"); } } }