mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
124 lines
4.2 KiB
C#
124 lines
4.2 KiB
C#
// /***************************************************************************
|
|
// Aaru Data Preservation Suite
|
|
// ----------------------------------------------------------------------------
|
|
//
|
|
// Filename : Verify.cs
|
|
// Author(s) : Natalia Portillo <claunia@claunia.com>
|
|
//
|
|
// Component : Disk image plugins.
|
|
//
|
|
// --[ Description ] ----------------------------------------------------------
|
|
//
|
|
// Verifies BlindWrite 4 format disc images.
|
|
//
|
|
// --[ License ] --------------------------------------------------------------
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as
|
|
// published by the Free Software Foundation; either version 2.1 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This library 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
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
// Copyright © 2011-2021 Natalia Portillo
|
|
// ****************************************************************************/
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using Aaru.Checksums;
|
|
|
|
namespace Aaru.DiscImages
|
|
{
|
|
public sealed partial class BlindWrite4
|
|
{
|
|
/// <inheritdoc />
|
|
public bool? VerifySector(ulong sectorAddress)
|
|
{
|
|
byte[] buffer = ReadSectorLong(sectorAddress);
|
|
|
|
return CdChecksums.CheckCdSector(buffer);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
|
|
out List<ulong> unknownLbas)
|
|
{
|
|
byte[] buffer = ReadSectorsLong(sectorAddress, length);
|
|
int bps = (int)(buffer.Length / length);
|
|
byte[] sector = new byte[bps];
|
|
failingLbas = new List<ulong>();
|
|
unknownLbas = new List<ulong>();
|
|
|
|
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;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
|
|
out List<ulong> unknownLbas)
|
|
{
|
|
byte[] buffer = ReadSectorsLong(sectorAddress, length, track);
|
|
int bps = (int)(buffer.Length / length);
|
|
byte[] sector = new byte[bps];
|
|
failingLbas = new List<ulong>();
|
|
unknownLbas = new List<ulong>();
|
|
|
|
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? VerifySector(ulong sectorAddress, uint track)
|
|
{
|
|
byte[] buffer = ReadSectorLong(sectorAddress, track);
|
|
|
|
return CdChecksums.CheckCdSector(buffer);
|
|
}
|
|
}
|
|
} |