for _, c := range s {
		if c >= 0x80 || c == 0x00 {
			return false
		}
	}
	return true
}

// toASCII converts the input to an ASCII C-style string.
// This is a best effort conversion, so invalid characters are dropped.
func toASCII(s string) string {
	if isASCII(s) {
		return s
	}
	b := make([]byte, 0, len(s))
	for _, c := range s {
		if c < 0x80 && c != 0x00 {
			b = append(b, byte(c))
		}
	}

    }

    int writeWireFormat(final byte[] dst, final int dstIndex) {
        // write 0x20 in first byte
        dst[dstIndex] = 0x20;

        final byte tmp[] = Strings.getOEMBytes(this.name, this.config);
        int i;
        for (i = 0; i < tmp.length; i++) {
            dst[dstIndex + 2 * i + 1] = (byte) (((tmp[i] & 0xF0) >> 4) + 0x41);
            dst[dstIndex + 2 * i + 2] = (byte) ((tmp[i] & 0x0F) + 0x41);
        }

        InputStream s = new ByteArrayInputStream(new byte[] { (byte) 0x82, 0x01, 0x00 });
        int length = ASN1Util.readLength(s, 500, false);
        assertEquals(256, length);
    }

    @Test
    void testReadLength_Indefinite() throws IOException {
        // Indefinite-length
        InputStream s = new ByteArrayInputStream(new byte[] { (byte) 0x80 });
        int length = ASN1Util.readLength(s, 100, false);

     * Creates a new session service packet instance.
     */
    public SessionServicePacket() {
        // Default constructor
    }

    // session service packet types
    static final int SESSION_MESSAGE = 0x00;
    static final int SESSION_REQUEST = 0x81;

    /**
     * NetBIOS positive session response packet type.
     */
    public static final int POSITIVE_SESSION_RESPONSE = 0x82;

    /**

        }

        off -= 4;

        b[off + 0] = (byte) SessionServicePacket.SESSION_MESSAGE;
        b[off + 1] = (byte) 0x00;
        b[off + 2] = (byte) (len >> 8 & 0xFF);
        b[off + 3] = (byte) (len & 0xFF);

        out.write(b, off, 4 + len);
    }

0x70, 0x65, 0x7, 0x0, 0x5, 0x65, 0x76, 0x65, 0x6e, 0x74, 0xd, 0x3a, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x7, 0x0, 0x8, 0x74, 0x65, 0x78, 0x74, 0x2f, 0x78, 0x6d, 0x6c, 0xb, 0x3a, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x7, 0x0, 0x5, 0x53, 0x74, 0x61, 0x74, 0x73, 0x3c, 0x3f, 0x78, 0x6d, 0x6c, 0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x3d, 0x22, 0x31, 0x2e, 0x30, 0x22, 0x20, 0x65, 0x6e, 0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x3d, 0x22, 0x55,...

        byte[] expected = new byte[1 + dirName.length() + 1];
        expected[0] = 0x04; // buffer format
        System.arraycopy(dirName.getBytes(), 0, expected, 1, dirName.length());
        expected[dirName.length() + 1] = 0x00; // null terminator

        byte[] dst = new byte[100];
        int len = sdd.writeBytesWireFormat(dst, 0);

        assertEquals(expected.length, len);

        byte[] result = new byte[len];

                    return null;
                }
                return (long) Encdec.dec_uint64le(this.sbuf, 28);
            }

            if (this.sbuf[0] == (byte) 0x00 && this.sbuf[1] == (byte) 0x00 && this.sbuf[4] == (byte) 0xFF && this.sbuf[5] == (byte) 'S'
                    && this.sbuf[6] == (byte) 'M' && this.sbuf[7] == (byte) 'B') {
                break; /* all good (SMB) */
            }

        // Then
        assertEquals(2, bytesWritten);
        assertEquals(SmbComTransaction.TRANS2_GET_DFS_REFERRAL, dst[0]);
        assertEquals((byte) 0x00, dst[1]);
    }

    @Test
    @DisplayName("writeSetupWireFormat should handle different buffer positions")
    void testWriteSetupWireFormatWithOffset() {
        // Given

		},
		fm: 0666 | fs.ModeDevice | fs.ModeCharDevice,
	}, {
		// block device node.
		h: &Header{
			Name:     "dev/sda",
			Mode:     0660,
			Size:     0,
			ModTime:  time.Unix(1360578954, 0),
			Typeflag: TypeBlock,
		},
		fm: 0660 | fs.ModeDevice,
	}, {
		// directory.
		h: &Header{
			Name:     "dir/",
			Mode:     0755,
			Size:     0,
			ModTime:  time.Unix(1360601116, 0),