this.pad = this.pad1 = 0;
        if (this.parameterCount > 0) {
            bufferIndex += this.pad = this.parameterOffset - (bufferIndex - this.headerStart);
            System.arraycopy(buffer, bufferIndex, this.txn_buf, this.bufParameterStart + this.parameterDisplacement, this.parameterCount);
            bufferIndex += this.parameterCount;
        }
        if (this.dataCount > 0) {

            return totalParameterCount;
        }

        int getTotalDataCount() {
            return totalDataCount;
        }

        int getParameterCount() {
            return parameterCount;
        }

        int getDataCount() {
            return dataCount;
        }

        int getSetupCount() {
            return setupCount;
        }

            // caclulate parameterDisplacement before calculating new parameterCount
            this.parameterDisplacement += this.parameterCount;

            int available = this.maxBufferSize - this.parameterOffset - this.pad1;
            this.parameterCount = Math.min(this.totalParameterCount - this.parameterDisplacement, available);
            available -= this.parameterCount;

            parameterDisplacement += parameterCount;

            int available = maxBufferSize - parameterOffset - pad;
            parameterCount = Math.min(totalParameterCount - parameterDisplacement, available);
            available -= parameterCount;

            dataOffset = parameterOffset + parameterCount;
            pad1 = dataOffset % PADDING_SIZE;

        // totalParameterCount (4 bytes)
        SMBUtil.writeInt4(1000, buffer, bufferIndex + 3);

        // totalDataCount (4 bytes)
        SMBUtil.writeInt4(2000, buffer, bufferIndex + 7);

        // parameterCount (4 bytes)
        SMBUtil.writeInt4(100, buffer, bufferIndex + 11);

        // parameterOffset (4 bytes)
        SMBUtil.writeInt4(64, buffer, bufferIndex + 15);

        // parameterDisplacement (4 bytes)

            this.maxDataCount = value;
        }

        public int getParameterCount() {
            return parameterCount;
        }

        public void setParameterCount(int value) {
            this.parameterCount = value;
        }

        public int getParameterOffset() {
            return parameterOffset;
        }