return 0, io.EOF
	}
	r.prevRune = -1
	n = copy(b, r.s[r.i:])
	r.i += int64(n)
	return
}

// ReadAt implements the [io.ReaderAt] interface.
func (r *Reader) ReadAt(b []byte, off int64) (n int, err error) {
	// cannot modify state - see io.ReaderAt
	if off < 0 {
		return 0, errors.New("bytes.Reader.ReadAt: negative offset")
	}
	if off >= int64(len(r.s)) {
		return 0, io.EOF
	}
	n = copy(b, r.s[off:])

        final int start = bufferIndex;
        this.alloc = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        this.free = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        this.sectPerAlloc = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.bytesPerSect = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

            this.pid = SMBUtil.readInt2(buffer, bufferIndex);
            final int boHigh = SMBUtil.readInt4(buffer, bufferIndex + 4);
            final int boLow = SMBUtil.readInt4(buffer, bufferIndex + 8);

            this.byteOffset = boHigh << 32 | boLow;

            final int lHigh = SMBUtil.readInt4(buffer, bufferIndex + 12);
            final int lLow = SMBUtil.readInt4(buffer, bufferIndex + 16);

        desc2.writeParametersWireFormat(dst2, 0);
        desc3.writeParametersWireFormat(dst3, 0);

        assertEquals(0x1111, SMBUtil.readInt2(dst1, 0));
        assertEquals(0x2222, SMBUtil.readInt2(dst2, 0));
        assertEquals(0x3333, SMBUtil.readInt2(dst3, 0));
    }

    @Test
    @DisplayName("Test parameter wire format structure")
    void testParameterWireFormatStructure() {

        bufferIndex += 2;
        this.fileType = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.deviceState = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.action = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.serverFid = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 6;

        bufferIndex += 16;

        this.capabilities = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.maxTransactSize = SMBUtil.readInt4(buffer, bufferIndex);
        this.maxReadSize = SMBUtil.readInt4(buffer, bufferIndex + 4);
        this.maxWriteSize = SMBUtil.readInt4(buffer, bufferIndex + 8);

        // Validate reasonable buffer sizes to prevent resource exhaustion

        final int start = bufferIndex;
        setStatus(SMBUtil.readInt2(buffer, bufferIndex));
        bufferIndex += 2;
        this.converter = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        setNumEntries(SMBUtil.readInt2(buffer, bufferIndex));
        bufferIndex += 2;
        this.totalAvailableEntries = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;

        }

        int start = bufferIndex;

        transformCount = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        reserved1 = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        reserved2 = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // Read the transform (only expecting one)

        this.resultCode = src[srcIndex + OPCODE_OFFSET + 1] & 0x0F;
        this.questionCount = readInt2(src, srcIndex + QUESTION_OFFSET);
        this.answerCount = readInt2(src, srcIndex + ANSWER_OFFSET);
        this.authorityCount = readInt2(src, srcIndex + AUTHORITY_OFFSET);
        this.additionalCount = readInt2(src, srcIndex + ADDITIONAL_OFFSET);
        return HEADER_LENGTH;
    }

        resultCode = src[srcIndex + OPCODE_OFFSET + 1] & 0x0F;
        questionCount = readInt2(src, srcIndex + QUESTION_OFFSET);
        answerCount = readInt2(src, srcIndex + ANSWER_OFFSET);
        authorityCount = readInt2(src, srcIndex + AUTHORITY_OFFSET);
        additionalCount = readInt2(src, srcIndex + ADDITIONAL_OFFSET);
        return HEADER_LENGTH;
    }