C#에서의 패킷 디코딩 요령

//패킷 디코딩
        public static bool DecodePacket(byte[] btBuf, out uint uCommand, out object oData, out uint uLen)
        {
            uCommand = 0;
            oData = 0;
            uLen = 0;

            ASCIIEncoding encoding = new ASCIIEncoding();

            int nOffset = 0;
            Object oResult;

            //StartCode
            AssignByteAsLength(out oResult, ref nOffset, btBuf, sizeof(uint));
            if ((uint)oResult != STARTCODE)
                return false;

            //Session No
            AssignByteAsLength(out oResult, ref nOffset, btBuf, sizeof(uint));
           
            //Length => CMD + DATA
            AssignByteAsLength(out oResult, ref nOffset, btBuf, sizeof(uint));
            uLen = (uint)oResult;

            //CMD
            AssignByteAsLength(out oResult, ref nOffset, btBuf, sizeof(uint));
            uCommand = (uint)oResult;

            if (0 < uLen - sizeof(uint)) //Length에서 CMD 길이를 뺀게 0보다 크면 -> 데이터가 남았음
            {
                //Data
                AssignByteAsLength(out oResult, ref nOffset, btBuf, uLen - sizeof(uint));
                oData = oResult;
            }

            //EndCode
            AssignByteAsLength(out oResult, ref nOffset, btBuf, sizeof(uint));
            if ((uint)oResult == ENDCODE)
                return true;

            return false;
        }