SMBUtil.writeInt2(this.creditCharge, dst, dstIndex + 6);
        SMBUtil.writeInt2(this.command, dst, dstIndex + 12);
        SMBUtil.writeInt2(this.credit, dst, dstIndex + 14);
        SMBUtil.writeInt4(this.flags, dst, dstIndex + 16);
        SMBUtil.writeInt4(this.nextCommand, dst, dstIndex + 20);
        SMBUtil.writeInt8(this.mid, dst, dstIndex + 24);

        if (this.async) {

        int ci = 0;
        SMBUtil.writeInt4(0, ctx, ci); // Next = 0
        ci += 4;
        SMBUtil.writeInt2(0x10, ctx, ci); // NameOffset
        SMBUtil.writeInt2(4, ctx, ci + 2); // NameLength
        ci += 4;
        SMBUtil.writeInt2(0, ctx, ci); // Reserved
        SMBUtil.writeInt2(0x20, ctx, ci + 2); // DataOffset
        ci += 4;
        SMBUtil.writeInt4(8, ctx, ci); // DataLength
        ci += 4;

     * @param val the value to write
     * @param dst the destination byte array
     * @param dstIndex the starting index in the destination array
     */
    public static void writeInt8(long val, final byte[] dst, int dstIndex) {
        dst[dstIndex] = (byte) val;
        dstIndex++;
        dst[dstIndex] = (byte) (val >>= 8);
        dst[++dstIndex] = (byte) (val >>= 8);

        int start = dstIndex;

        // StructureSize (2 bytes) - must be 36
        SMBUtil.writeInt2(STRUCTURE_SIZE, dst, dstIndex);
        dstIndex += 2;

        // Reserved (2 bytes)
        SMBUtil.writeInt2(0, dst, dstIndex);
        dstIndex += 2;

        // Flags (4 bytes)
        SMBUtil.writeInt4(flags, dst, dstIndex);
        dstIndex += 4;

        // LeaseKey (16 bytes)

        // Status at +8
        SMBUtil.writeInt4(status, buf, start + 8);
        // Command at +12
        SMBUtil.writeInt2(command, buf, start + 12);
        // Flags at +16: server-to-redirector
        SMBUtil.writeInt4(0x00000001, buf, start + 16);
        // SessionId at +40 (sync header)
        SMBUtil.writeInt8(sessionId, buf, start + 40);
    }

    /**

        // Write context header
        SMBUtil.writeInt4(0, buffer, offset); // Next (offset to next context, 0 for last)
        offset += 4;

        SMBUtil.writeInt2(16, buffer, offset); // NameOffset (from start of context)
        offset += 2;

        SMBUtil.writeInt2(4, buffer, offset); // NameLength
        offset += 2;

        SMBUtil.writeInt2(0, buffer, offset); // Reserved
        offset += 2;

        // Write context header
        SMBUtil.writeInt4(16, dst, dstIndex); // Next (offset to next context, 0 for last)
        dstIndex += 4;

        SMBUtil.writeInt2(4, dst, dstIndex); // NameOffset (from start of context)
        dstIndex += 2;

        SMBUtil.writeInt2(4, dst, dstIndex); // NameLength
        dstIndex += 2;

        SMBUtil.writeInt2(0, dst, dstIndex); // Reserved
        dstIndex += 2;

            SMBUtil.writeInt2(80, dst, dstIndex); // ReadChannelInfoOffset (after header)
            SMBUtil.writeInt2(16, dst, dstIndex + 2); // ReadChannelInfoLength
            dstIndex += 4;
        } else {
            SMBUtil.writeInt2(0, dst, dstIndex);
            SMBUtil.writeInt2(0, dst, dstIndex + 2);
            dstIndex += 4;
        }

    @Test
    void testInt2ReadWrite() {
        byte[] buffer = new byte[2];
        ServerMessageBlock.writeInt2(0x1234, buffer, 0);
        assertEquals(0x1234, ServerMessageBlock.readInt2(buffer, 0));
    }

    @Test
    void testInt4ReadWrite() {
        byte[] buffer = new byte[4];
        ServerMessageBlock.writeInt4(0x12345678, buffer, 0);
        assertEquals(0x12345678, ServerMessageBlock.readInt4(buffer, 0));
    }

    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Encodable#encode(byte[], int)
     */
    @Override
    public int encode(final byte[] dst, final int dstIndex) {
        SMBUtil.writeInt8(this.endOfFile, dst, dstIndex);
        return 8;
    }

    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {