public override bool DetectIsPartitioned(Stream s)
{
if (s.Length < 1024)
{
return(false);
}
s.Position = 0;
byte[] initialBytes = Utilities.ReadFully(s, 1024);
BlockZero b0 = new BlockZero();
b0.ReadFrom(initialBytes, 0);
if (b0.Signature != 0x4552)
{
return(false);
}
PartitionMapEntry initialPart = new PartitionMapEntry(s);
initialPart.ReadFrom(initialBytes, 512);
return(initialPart.Signature == 0x504d);
}
/// <summary>
/// Initializes a new instance of the PartitionMap class.
/// </summary>
/// <param name="stream">Stream contaning the contents of a disk</param>
public PartitionMap(Stream stream)
{
_stream = stream;
stream.Position = 0;
byte[] initialBytes = Utilities.ReadFully(stream, 1024);
BlockZero b0 = new BlockZero();
b0.ReadFrom(initialBytes, 0);
PartitionMapEntry initialPart = new PartitionMapEntry(_stream);
initialPart.ReadFrom(initialBytes, 512);
byte[] partTableData = Utilities.ReadFully(stream, (int)(initialPart.MapEntries - 1) * 512);
_partitions = new PartitionMapEntry[initialPart.MapEntries - 1];
for (uint i = 0; i < initialPart.MapEntries - 1; ++i)
{
_partitions[i] = new PartitionMapEntry(_stream);
_partitions[i].ReadFrom(partTableData, (int)(512 * i));
}
}