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Move image and sector verification methods to new interfaces.

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Natalia Portillo
2019-01-20 22:24:15 +00:00
parent 640c57b87a
commit 6b1aeb6cbb
96 changed files with 1756 additions and 1602 deletions
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102
DiscImageChef.DiscImages/CHD/Read.cs
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@@ -37,7 +37,6 @@ using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
using DiscImageChef.Checksums;
using DiscImageChef.CommonTypes;
using DiscImageChef.CommonTypes.Enums;
using DiscImageChef.CommonTypes.Exceptions;
@@ -1069,107 +1068,6 @@ namespace DiscImageChef.DiscImages
return true;
}
public bool? VerifySector(ulong sectorAddress)
{
if(isHdd) return null;
byte[] buffer = ReadSectorLong(sectorAddress);
return CdChecksums.CheckCdSector(buffer);
}
public bool? VerifySector(ulong sectorAddress, uint track)
{
if(isHdd)
throw new FeaturedNotSupportedByDiscImageException("Cannot access optical tracks on a hard disk image");
return VerifySector(GetAbsoluteSector(sectorAddress, track));
}
public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
out List<ulong> unknownLbas)
{
unknownLbas = new List<ulong>();
failingLbas = new List<ulong>();
if(isHdd) return null;
byte[] buffer = ReadSectorsLong(sectorAddress, length);
int bps = (int)(buffer.Length / length);
byte[] sector = new byte[bps];
for(int i = 0; i < length; i++)
{
Array.Copy(buffer, i * bps, sector, 0, bps);
bool? sectorStatus = CdChecksums.CheckCdSector(sector);
switch(sectorStatus)
{
case null:
unknownLbas.Add((ulong)i + sectorAddress);
break;
case false:
failingLbas.Add((ulong)i + sectorAddress);
break;
}
}
if(unknownLbas.Count > 0) return null;
return failingLbas.Count <= 0;
}
public bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
out List<ulong> unknownLbas)
{
unknownLbas = new List<ulong>();
failingLbas = new List<ulong>();
if(isHdd) return null;
byte[] buffer = ReadSectorsLong(sectorAddress, length, track);
int bps = (int)(buffer.Length / length);
byte[] sector = new byte[bps];
for(int i = 0; i < length; i++)
{
Array.Copy(buffer, i * bps, sector, 0, bps);
bool? sectorStatus = CdChecksums.CheckCdSector(sector);
switch(sectorStatus)
{
case null:
unknownLbas.Add((ulong)i + sectorAddress);
break;
case false:
failingLbas.Add((ulong)i + sectorAddress);
break;
}
}
if(unknownLbas.Count > 0) return null;
return failingLbas.Count <= 0;
}
public bool? VerifyMediaImage()
{
byte[] calculated;
if(mapVersion >= 3)
{
Sha1Context sha1Ctx = new Sha1Context();
for(uint i = 0; i < totalHunks; i++) sha1Ctx.Update(GetHunk(i));
calculated = sha1Ctx.Final();
}
else
{
Md5Context md5Ctx = new Md5Context();
for(uint i = 0; i < totalHunks; i++) md5Ctx.Update(GetHunk(i));
calculated = md5Ctx.Final();
}
return expectedChecksum.SequenceEqual(calculated);
}
public byte[] ReadSector(ulong sectorAddress)
{
if(sectorAddress > imageInfo.Sectors - 1)