smbComOpenAndX.useUnicode = true;
        // For Unicode: 1 byte (initial null in writeBytesWireFormat)
        // + potential 1 byte alignment (in writeString) + fileName.length() * 2 + 2 bytes (terminating nulls)
        // Since headerStart is 0 and dstIndex starts at 1 (after initial null), (1-0)%2=1, so alignment byte added
        // Total: 1 + 1 + 12*2 + 2 = 28 bytes
        byte[] dst = new byte[30]; // Use extra buffer space to avoid index errors

        // Test alignment from position 1 to 4
        byte[] data = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 };
        PacDataInputStream pdis = createInputStream(data);
        pdis.readByte(); // position is 1
        pdis.align(4);
        assertEquals(1, pdis.available());
        assertEquals(0x05, pdis.readByte());

        // Test no alignment needed

        // Then
        // The writeBytesWireFormat writes the structure and calculates padding
        // Base structure: 24 bytes, then pad8 alignment, then token: 5 bytes
        // Total bytes written includes padding for 8-byte alignment
        int expectedBytesWritten = 35;
        assertEquals(expectedBytesWritten, bytesWritten);

        // Verify structure

    } ?: throw IllegalArgumentException("No such suite: $javaName")
}

suspend fun fetchIanaSuites(okHttpClient: OkHttpClient): IanaSuites {
  val url = "https://www.iana.org/assignments/tls-parameters/tls-parameters-4.csv"

  val call = okHttpClient.newCall(Request(url.toHttpUrl()))

  val suites =
    call.executeAsync().use {
      if (!it.isSuccessful) {

        String testString = "Aligned Unicode";
        byte[] buffer = new byte[testString.length() * 2 + 2 + 1]; // +1 for alignment
        int len = smb.writeString(testString, buffer, 1);
        // When dstIndex=1 and headerStart=1, (1-1)%2=0, no alignment padding needed
        // Length is string bytes (15*2) + 2 null terminators = 32
        assertEquals(testString.length() * 2 + 2, len);

        return this.buf;
    }

    /**
     * Aligns the buffer index to the specified boundary with a fill value.
     *
     * @param boundary the alignment boundary
     * @param value the fill value for padding
     * @return the number of bytes added for alignment
     */
    public int align(final int boundary, final byte value) {
        final int n = align(boundary);
        int i = n;
        while (i > 0) {

        assertEquals((byte) 0x04, dst[0]); // First buffer format byte

        // Find the second buffer format byte by searching for it
        // In Unicode mode, the old filename is written as Unicode, then 0x04, then an alignment byte
        int secondBufferFormatIndex = -1;
        for (int i = 1; i < result - 1; i++) {
            if (dst[i] == (byte) 0x04) {
                secondBufferFormatIndex = i;
                break;

  /**
   * Returns the string used to identify this protocol for ALPN, like "http/1.1", "spdy/3.1" or
   * "h2".
   *
   * See also [IANA tls-extensiontype-values][iana].
   *
   * [iana]: https://www.iana.org/assignments/tls-extensiontype-values
   */
  override fun toString(): String = protocol

  companion object {
    /**
     * Returns the protocol identified by `protocol`.
     *

   * may be necessary in certain situations for compatibility.
   */
  public static final MediaType TEXT_JAVASCRIPT_UTF_8 = createConstantUtf8(TEXT_TYPE, "javascript");

  /**
   * <a href="http://www.iana.org/assignments/media-types/text/tab-separated-values">Tab separated
   * values</a>.
   *
   * @since 15.0
   */
  public static final MediaType TSV_UTF_8 = createConstantUtf8(TEXT_TYPE, "tab-separated-values");

        dstIndex += this.info.encode(dst, dstIndex);

        /* 6 zeros observed with NT */
        SMBUtil.writeInt8(0L, dst, dstIndex);
        dstIndex += 6;

        /*
         * Also observed 4 byte alignment but we stick
         * with the default for jCIFS which is 2
         */

        return dstIndex - start;
    }

    @Override