private static bool CheckHead(BinaryAPIReader reader, bool endOfHead)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
byte[] data = reader.ReadBytes(3);
return(Enumerable.SequenceEqual(data, endOfHead ? _HEAD_END : _HEAD_START));
}
public static byte[] ReadHeader(BinaryAPIReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (!CheckHead(reader, false))
{
return(Array.Empty <byte>());
}
int headerDataLength = reader.ReadInt();
byte[] headerData = reader.ReadBytes(headerDataLength);
if (!CheckHead(reader, true))
{
return(Array.Empty <byte>());
}
return(headerData);
}