/// <summary>
/// Reads the file and directory structure from the image.
/// </summary>
/// <returns>Returns true if the file system is valid.</returns>
private bool ReadFileStructure()
{
foreach (var volume in this.LogicalVolumes)
{
// Ensure the volume and parittion are valid.
if (!this.ValidateVolumePartition(volume))
{
return(false);
}
int volIndex = this.LogicalVolumes.IndexOf(volume);
LongAllocationDescriptor nextExtent = volume.FileSetLocation;
if (nextExtent.Length < VirtualSectorSize)
{
return(false);
}
byte[] buffer = new byte[nextExtent.Length];
this.ReadData(volIndex, nextExtent, buffer);
VolumeTag tag = new VolumeTag();
tag.Parse(0, buffer, buffer.Length);
if (tag.Identifier != (int)VolumeDescriptorType.FileSet)
{
return(false);
}
UdfFileSet fs = new UdfFileSet();
fs.RecordingTime.Parse(16, buffer);
fs.RootDirICB.Parse(400, buffer);
volume.FileSet = fs;
if (!this.ReadRecord(this.RootDirectory as UdfRecord, volIndex, fs.RootDirICB, MaxRecurseLevels))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Reads the file and directory structure from the image.
/// </summary>
/// <returns>Returns true if the file system is valid.</returns>
private bool ReadFileStructure()
{
foreach (var volume in this.LogicalVolumes)
{
// Ensure the volume and parittion are valid.
if (!this.ValidateVolumePartition(volume))
{
return false;
}
int volIndex = this.LogicalVolumes.IndexOf(volume);
LongAllocationDescriptor nextExtent = volume.FileSetLocation;
if (nextExtent.Length < VirtualSectorSize)
{
return false;
}
byte[] buffer = new byte[nextExtent.Length];
this.ReadData(volIndex, nextExtent, buffer);
VolumeTag tag = new VolumeTag();
tag.Parse(0, buffer, buffer.Length);
if (tag.Identifier != (int)VolumeDescriptorType.FileSet)
{
return false;
}
UdfFileSet fs = new UdfFileSet();
fs.RecordingTime.Parse(16, buffer);
fs.RootDirICB.Parse(400, buffer);
volume.FileSet = fs;
if (!this.ReadRecord(this.RootDirectory as UdfRecord, volIndex, fs.RootDirICB, MaxRecurseLevels))
{
return false;
}
}
return true;
}