return base;
    }

    /**
     * Build a full SMB2 packet combining header and provided body, optionally injecting context bytes.
     */
    private static byte[] buildPacket(byte[] header, byte[] body, Integer ctxOffsetFromHeader, byte[] ctxBytes) {
        int totalLen;
        if (ctxOffsetFromHeader != null && ctxBytes != null) {
            totalLen = Math.max(SMB2_HEADER_LENGTH + body.length, ctxOffsetFromHeader + ctxBytes.length);

		buf, err = os.ReadFile(cgroupV1MemLimitFile)
	}
	if err != nil {
		return 0
	}
	limit, err = strconv.ParseUint(strings.TrimSpace(string(buf)), 10, 64)
	if err != nil {
		// The kernel can return valid but non integer values
		// but still, no need to interpret more
		return 0
	}
	if limit >= 100*humanize.TiByte {
		// No limit set, or unreasonably high. Ignore
		return 0
	}
	return limit
}

        String clean = s.replaceAll("[^0-9A-Fa-f]", "");
        int len = clean.length();
        byte[] out = new byte[len / 2];
        for (int i = 0; i < len; i += 2) {
            out[i / 2] = (byte) Integer.parseInt(clean.substring(i, i + 2), 16);
        }
        return out;
    }

    @Test
    @DisplayName("getNTHash: known vector for 'password'")
    void testGetNTHash_knownVector() {
        // Arrange

    } catch (e: GeneralSecurityException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    }
  }
}

internal data class TbsCertificate(
  /** This is a integer enum. Use 0L for v1, 1L for v2, and 2L for v3. */
  val version: Long,
  val serialNumber: BigInteger,
  val signature: AlgorithmIdentifier,
  val issuer: List<List<AttributeTypeAndValue>>,
  val validity: Validity,

            buffer.putLong(Long.MAX_VALUE);
            buffer.putLong(Long.MAX_VALUE);
            buffer.putLong(Long.MAX_VALUE);
            buffer.putInt(Integer.MAX_VALUE);
            buffer.putInt(Integer.MAX_VALUE);
            byte[] bufferArray = buffer.array();

            // When
            int bytesConsumed = fileFsFullSizeInfo.decode(bufferArray, 0, bufferArray.length);

    if (minCapacity < 0) {
      throw new IllegalArgumentException("cannot store more than Integer.MAX_VALUE elements");
    } else if (minCapacity <= oldCapacity) {
      return oldCapacity;
    }
    // careful of overflow!
    int newCapacity = oldCapacity + (oldCapacity >> 1) + 1;
    if (newCapacity < minCapacity) {
      newCapacity = Integer.highestOneBit(minCapacity - 1) << 1;
    }
    if (newCapacity < 0) {

        throw new IllegalArgumentException("cannot store more than Integer.MAX_VALUE elements");
      } else if (minCapacity <= oldCapacity) {
        return oldCapacity;
      }
      // careful of overflow!
      int newCapacity = oldCapacity + (oldCapacity >> 1) + 1;
      if (newCapacity < minCapacity) {
        newCapacity = Integer.highestOneBit(minCapacity - 1) << 1;
      }
      if (newCapacity < 0) {

        assertEquals(0x56, buffer[2] & 0xFF);
        assertEquals(0x78, buffer[3] & 0xFF);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 255, 256, 65535, 65536, Integer.MAX_VALUE })
    @DisplayName("Should handle boundary values")
    void testBoundaryValues(int value) {
        // Given
        byte[] buffer = new byte[4];

        // When

        }
        return null;
    }

    /**
     * Gets an attribute value as an integer.
     *
     * @param attributes the named node map of attributes
     * @param name the attribute name
     * @return the attribute value as Integer, null if not found or not parseable
     */
    protected Integer getAttributeAsInteger(final NamedNodeMap attributes, final String name) {

        LeaseEntry entry = leases.get(key);
        if (entry != null) {
            log.info("Handling lease break for {} from state 0x{} to 0x{}", key, Integer.toHexString(entry.getLeaseState()),
                    Integer.toHexString(newState));

            entry.setBreaking(true);
            int oldState = entry.getLeaseState();
            entry.updateState(newState);