assertThat(ioe.message).isEqualTo("google.com")
      val cause = ioe.cause!!
      assertThat(cause).isInstanceOf<IOException>()
      assertThat(cause).hasMessage("response size exceeds limit (65536 bytes): 65537 bytes")
    }
  }

  @Test
  fun failOnBadResponse() {
    server.enqueue(dnsResponse("00"))
    try {
      dns.lookup("google.com")
      fail<Any>()
    } catch (ioe: IOException) {

	VSHUF4IV	$16, V1, V2	// ERROR "operand out of range 0 to 15"
	XVSHUF4IV	$16, X1, X2	// ERROR "operand out of range 0 to 15"
	ADDV16		$1, R4, R5	// ERROR "the constant must be a multiple of 65536."
	ADDV16		$65535, R4, R5	// ERROR "the constant must be a multiple of 65536."
	SC		R4, 1(R5)	// ERROR "offset must be a multiple of 4."
	SCV		R4, 1(R5)	// ERROR "offset must be a multiple of 4."
	LL		1(R5), R4	// ERROR "offset must be a multiple of 4."

    public static final int MAX_DOMAIN_LENGTH = 255;
    public static final int MAX_SHARE_NAME_LENGTH = 80;
    public static final int MAX_BUFFER_SIZE = 65536; // 64KB default max buffer
    public static final int MAX_SMB2_BUFFER_SIZE = 8388608; // 8MB for SMB2/3
    public static final int MAX_CREDITS = 65535;

    // Patterns for validation
    private static final Pattern VALID_USERNAME = Pattern.compile("^[a-zA-Z0-9._\\-@]+$");

        assertDoesNotThrow(() -> InputValidator.validatePort(65535));

        assertThrows(IllegalArgumentException.class, () -> InputValidator.validatePort(0));
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validatePort(-1));
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validatePort(65536));
    }

    @Test
    @DisplayName("Test timeout validation")

	MOVBU	R4, 65536(R5)			// 1e020014de971000c4030029
	MOVBU	R4, 4096(R5)			// 3e000014de971000c4030029
	SC	R4, 65536(R5)			// 1e040010de971000c4030021
	SCV	R4, 65536(R5)			// 1e040010de971000c4030023
	LL	65536(R5), R4			// 1e040010de971000c4030020
	LLV	65536(R5), R4			// 1e040010de971000c4030022
	MOVW	y+65540(FP), R4			// 1e020014de8f1000c4338028
	MOVWU	y+65540(FP), R4			// 1e020014de8f1000c433802a
	MOVV	y+65540(FP), R4			// 1e020014de8f1000c433c028

        });
    }

    @Test
    public void testValidMessageSize() throws Exception {
        validator.validateMessageSize(1024, false);
        validator.validateMessageSize(65535, true);
        validator.validateMessageSize(1048576, false); // 1MB for SMB2
    }

    @Test
    public void testMessageSizeTooSmall() throws Exception {
        assertThrows(SmbException.class, () -> {

	ADDV	$65536, R4		// 1e02001484f81000
	ADDV	$4096, R4		// 3e00001484f81000
	AND	$65536, R4, R5		// 1e02001485f81400
	AND	$4096, R4, R5		// 3e00001485f81400
	AND	$65536, R4		// 1e02001484f81400
	AND	$4096, R4		// 3e00001484f81400
	SGT	$65536, R4, R5		// 1e02001485781200
	SGT	$4096, R4, R5		// 3e00001485781200
	SGT	$65536, R4		// 1e02001484781200
	SGT	$4096, R4		// 3e00001484781200
	SGTU	$65536, R4, R5		// 1e02001485f81200

        "email": "******@****.***",
        "hashed_password": "$argon2id$v=19$m=65536,t=3,p=4$wagCPXjifgvUFBzq4hqe3w$CYaIb8sB+wtD+Vu/P4uod1+Qof8h+1g7bbDlBID48Rc",
        "disabled": False,
    },
    "alice": {
        "username": "alice",
        "full_name": "Alice Chains",
        "email": "******@****.***",
        "hashed_password": "$argon2id$v=19$m=65536,t=3,p=4$g2/AV1zwopqUntPKJavBFw$BwpRGDCyUHLvHICnwijyX8ROGoiUPwNKZ7915MeYfCE",

        "email": "******@****.***",
        "hashed_password": "$argon2id$v=19$m=65536,t=3,p=4$wagCPXjifgvUFBzq4hqe3w$CYaIb8sB+wtD+Vu/P4uod1+Qof8h+1g7bbDlBID48Rc",
        "disabled": False,
    },
    "alice": {
        "username": "alice",
        "full_name": "Alice Chains",
        "email": "******@****.***",
        "hashed_password": "$argon2id$v=19$m=65536,t=3,p=4$g2/AV1zwopqUntPKJavBFw$BwpRGDCyUHLvHICnwijyX8ROGoiUPwNKZ7915MeYfCE",

        "email": "******@****.***",
        "hashed_password": "$argon2id$v=19$m=65536,t=3,p=4$wagCPXjifgvUFBzq4hqe3w$CYaIb8sB+wtD+Vu/P4uod1+Qof8h+1g7bbDlBID48Rc",
        "disabled": False,
    },
    "alice": {
        "username": "alice",
        "full_name": "Alice Chains",
        "email": "******@****.***",
        "hashed_password": "$argon2id$v=19$m=65536,t=3,p=4$g2/AV1zwopqUntPKJavBFw$BwpRGDCyUHLvHICnwijyX8ROGoiUPwNKZ7915MeYfCE",