/// <summary>
/// Decode CO PDU.
/// </summary>
/// <param name="context">The context that received data.</param>
/// <param name="messageBytes">bytes received</param>
/// <param name="consumedLength">num of bytes consumed in processing</param>
/// <param name="expectedLength">num of bytes expected if the bytes is not enough</param>
/// <returns>pdus</returns>
internal static RpceCoPdu[] DecodeCoPdu(
RpceContext context,
byte[] messageBytes,
out int consumedLength,
out int expectedLength)
{
List <RpceCoPdu> pduList = new List <RpceCoPdu>();
consumedLength = 0;
expectedLength = 0;
while (consumedLength < messageBytes.Length)
{
if ((messageBytes.Length - consumedLength) < RpceUtility.CO_PDU_HEADER_SIZE)
{
expectedLength = RpceUtility.CO_PDU_HEADER_SIZE;
break;
}
//#4 byte is drep
uint dataRepresentation = BitConverter.ToUInt32(
messageBytes,
consumedLength + RpceUtility.DREP_FIELD_OFFSET);
//#8 byte is frag_length
ushort fragmentLength = BitConverter.ToUInt16(
messageBytes,
consumedLength + RpceUtility.FRAG_LENGTH_FIELD_OFFSET);
if ((dataRepresentation & 0x0000FFFFU) != NativeMethods.NDR_LOCAL_DATA_REPRESENTATION)
{
fragmentLength = EndianUtility.ReverseByteOrder(fragmentLength);
}
if ((messageBytes.Length - consumedLength) < fragmentLength)
{
expectedLength = fragmentLength;
break;
}
byte[] pduBytes = new byte[fragmentLength];
Buffer.BlockCopy(messageBytes, consumedLength, pduBytes, 0, fragmentLength);
RpceCoPdu pdu = RpceUtility.DecodeCoPdu(context, pduBytes);
pduList.Add(pdu);
consumedLength += fragmentLength;
}
return(pduList.ToArray());
}
/// <summary>
/// Decode CO PDU.
/// </summary>
/// <param name="context">The context that received data.</param>
/// <param name="messageBytes">bytes received</param>
/// <param name="consumedLength">num of bytes consumed in processing</param>
/// <param name="expectedLength">num of bytes expected if the bytes is not enough</param>
/// <returns>pdus</returns>
internal static RpceCoPdu[] DecodeCoPdu(
RpceContext context,
byte[] messageBytes,
out int consumedLength,
out int expectedLength)
{
List <RpceCoPdu> pduList = new List <RpceCoPdu>();
consumedLength = 0;
expectedLength = 0;
while (consumedLength < messageBytes.Length)
{
if ((messageBytes.Length - consumedLength) < RpceUtility.CO_PDU_HEADER_SIZE)
{
expectedLength = RpceUtility.CO_PDU_HEADER_SIZE;
break;
}
//#8 byte is frag_length
ushort fragmentLength = BitConverter.ToUInt16(
messageBytes,
consumedLength + RpceUtility.FRAG_LENGTH_FIELD_OFFSET);
if ((messageBytes.Length - consumedLength) < fragmentLength)
{
expectedLength = fragmentLength;
break;
}
byte[] pduBytes = new byte[fragmentLength];
Buffer.BlockCopy(messageBytes, consumedLength, pduBytes, 0, fragmentLength);
RpceCoPdu pdu = RpceUtility.DecodeCoPdu(context, pduBytes);
pduList.Add(pdu);
consumedLength += fragmentLength;
}
return(pduList.ToArray());
}