public static Guid CreateGuidFromData(P2PVersion ver, byte[] data)
{
Guid ret = Guid.Empty;
if (ver == P2PVersion.P2PV1)
{
P2PMessage message = new P2PMessage(ver);
message.ParseBytes(data);
ret = new Guid(
(int)message.V1Header.AckSessionId,
(short)(message.Header.AckIdentifier & 0x0000FFFF),
(short)((message.Header.AckIdentifier & 0xFFFF0000) >> 16),
(byte)((message.V1Header.AckTotalSize & 0x00000000000000FF)),
(byte)((message.V1Header.AckTotalSize & 0x000000000000FF00) >> 8),
(byte)((message.V1Header.AckTotalSize & 0x0000000000FF0000) >> 16),
(byte)((message.V1Header.AckTotalSize & 0x00000000FF000000) >> 24),
(byte)((message.V1Header.AckTotalSize & 0x000000FF00000000) >> 32),
(byte)((message.V1Header.AckTotalSize & 0x0000FF0000000000) >> 40),
(byte)((message.V1Header.AckTotalSize & 0x00FF000000000000) >> 48),
(byte)((message.V1Header.AckTotalSize & 0xFF00000000000000) >> 56)
);
}
else if (ver == P2PVersion.P2PV2)
{
Int32 a = BitUtility.ToInt32(data, 0, BitConverter.IsLittleEndian);
Int16 b = BitUtility.ToInt16(data, 4, BitConverter.IsLittleEndian);
Int16 c = BitUtility.ToInt16(data, 6, BitConverter.IsLittleEndian);
byte d = data[8], e = data[9], f = data[10], g = data[11];
byte h = data[12], i = data[13], j = data[14], k = data[15];
ret = new Guid(a, b, c, d, e, f, g, h, i, j, k);
}
return(ret);
}