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Checksum tape images.

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This commit is contained in:
Natalia Portillo
2019-05-02 20:00:54 +01:00
parent ffa44c5621
commit 315e7547b5
1 changed files with 145 additions and 56 deletions
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97
DiscImageChef/Commands/Checksum.cs
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@@ -182,7 +182,9 @@ namespace DiscImageChef.Commands
Checksum mediaChecksum = null;
if(inputFormat is IOpticalMediaImage opticalInput)
switch(inputFormat)
{
case IOpticalMediaImage opticalInput when opticalInput.Tracks != null:
try
{
Checksum trackChecksum = null;
@@ -246,8 +248,8 @@ namespace DiscImageChef.Commands
if(separatedTracks)
if(trackChecksum != null)
foreach(ChecksumType chk in trackChecksum.End())
DicConsole.WriteLine("Track {0}'s {1}: {2}", currentTrack.TrackSequence, chk.type,
chk.Value);
DicConsole.WriteLine("Track {0}'s {1}: {2}", currentTrack.TrackSequence,
chk.type, chk.Value);
previousTrackEnd = currentTrack.TrackEndSector;
}
@@ -271,7 +273,91 @@ namespace DiscImageChef.Commands
if(MainClass.Debug) DicConsole.DebugWriteLine("Could not get tracks because {0}", ex.Message);
else DicConsole.WriteLine("Unable to get separate tracks, not checksumming them");
}
break;
case ITapeImage tapeImage when tapeImage.IsTape && tapeImage.Files?.Count > 0:
{
Checksum trackChecksum = null;
if(wholeDisc) mediaChecksum = new Checksum(enabledChecksums);
ulong previousTrackEnd = 0;
foreach(TapeFile currentFile in tapeImage.Files)
{
if(currentFile.FirstBlock - previousTrackEnd != 0 && wholeDisc)
for(ulong i = previousTrackEnd + 1; i < currentFile.FirstBlock; i++)
{
DicConsole.Write("\rHashing track-less sector {0}", i);
byte[] hiddenSector = inputFormat.ReadSector(i);
mediaChecksum?.Update(hiddenSector);
}
DicConsole.DebugWriteLine("Checksum command",
"Track {0} starts at sector {1} and ends at sector {2}",
currentFile.File, currentFile.FirstBlock, currentFile.LastBlock);
if(separatedTracks) trackChecksum = new Checksum(enabledChecksums);
ulong sectors = currentFile.LastBlock - currentFile.FirstBlock + 1;
ulong doneSectors = 0;
DicConsole.WriteLine("File {0} has {1} sectors", currentFile.File, sectors);
while(doneSectors < sectors)
{
byte[] sector;
if(sectors - doneSectors >= SECTORS_TO_READ)
{
sector = tapeImage.ReadSectors(doneSectors + currentFile.FirstBlock, SECTORS_TO_READ);
DicConsole.Write("\rHashings sectors {0} to {2} of file {1}", doneSectors,
currentFile.File, doneSectors + SECTORS_TO_READ);
doneSectors += SECTORS_TO_READ;
}
else
{
sector = tapeImage.ReadSectors(doneSectors + currentFile.FirstBlock,
(uint)(sectors - doneSectors));
DicConsole.Write("\rHashings sectors {0} to {2} of file {1}", doneSectors,
currentFile.File, doneSectors + (sectors - doneSectors));
doneSectors += sectors - doneSectors;
}
if(wholeDisc) mediaChecksum?.Update(sector);
if(separatedTracks) trackChecksum?.Update(sector);
}
DicConsole.WriteLine();
if(separatedTracks)
if(trackChecksum != null)
foreach(ChecksumType chk in trackChecksum.End())
DicConsole.WriteLine("File {0}'s {1}: {2}", currentFile.File, chk.type, chk.Value);
previousTrackEnd = currentFile.LastBlock;
}
if(tapeImage.Info.Sectors - previousTrackEnd != 0 && wholeDisc)
for(ulong i = previousTrackEnd + 1; i < tapeImage.Info.Sectors; i++)
{
DicConsole.Write("\rHashing file-less sector {0}", i);
byte[] hiddenSector = inputFormat.ReadSector(i);
mediaChecksum?.Update(hiddenSector);
}
if(wholeDisc)
if(mediaChecksum != null)
foreach(ChecksumType chk in mediaChecksum.End())
DicConsole.WriteLine("Tape's {0}: {1}", chk.type, chk.Value);
break;
}
default:
{
mediaChecksum = new Checksum(enabledChecksums);
@@ -286,7 +372,8 @@ namespace DiscImageChef.Commands
if(sectors - doneSectors >= SECTORS_TO_READ)
{
sector = inputFormat.ReadSectors(doneSectors, SECTORS_TO_READ);
DicConsole.Write("\rHashings sectors {0} to {1}", doneSectors, doneSectors + SECTORS_TO_READ);
DicConsole.Write("\rHashings sectors {0} to {1}", doneSectors,
doneSectors + SECTORS_TO_READ);
doneSectors += SECTORS_TO_READ;
}
else
@@ -304,6 +391,8 @@ namespace DiscImageChef.Commands
foreach(ChecksumType chk in mediaChecksum.End())
DicConsole.WriteLine("Disk's {0}: {1}", chk.type, chk.Value);
break;
}
}
return (int)ErrorNumber.NoError;