dataOffset = readInt4( buffer, bufferIndex );
        bufferIndex += 4;
        dataDisplacement = readInt4( buffer, bufferIndex );
        bufferIndex += 4;
        setupCount = buffer[bufferIndex] & 0xFF;
        bufferIndex += 2;
        if( setupCount != 0 ) {
            if( log.level >= 3 )
                log.println( "setupCount is not zero: " + setupCount );
        }

        return bufferIndex - start;

        for (int i = 0; i < sz; i++) {
            char ch = str.charAt(i);
            // handle unicode
            if (ch > 0xfff) {
                out.append("\\u").append(hex(ch));
            } else if (ch > 0xff) {
                out.append("\\u0").append(hex(ch));
            } else if (ch > 0x7f) {
                out.append("\\u00").append(hex(ch));
            } else if (ch < 32) {

        this.winsServer = Config.getInetAddressArray(p, "jcifs.netbios.wins", ",", new InetAddress[0]);

        this.transactionBufferSize = Config.getInt(p, "jcifs.smb.client.transaction_buf_size", 0xFFFF) - 512;
        this.bufferCacheSize = Config.getInt(p, "jcifs.smb.maxBuffers", 16);

        this.smbListSize = Config.getInt(p, "jcifs.smb.client.listSize", 65435);

        }
        final byte[] digest = msgDigest.digest();

        final StringBuilder buffer = new StringBuilder(200);
        for (final byte element : digest) {
            final String tmp = Integer.toHexString(element & 0xff);
            if (tmp.length() == 1) {
                buffer.append('0').append(tmp);
            } else {
                buffer.append(tmp);
            }
        }
        return buffer.toString();
    }

        tmp = new byte[TMP_BUFFER_SIZE];
    }

    public synchronized int read() throws IOException {
        if( read( tmp, 0, 1 ) < 0 ) {
            return -1;
        }
        return tmp[0] & 0xFF;
    }
    public synchronized int read( byte[] b ) throws IOException {
        return read( b, 0, b.length );
    }

    /* This method will not return until len bytes have been read

        try {
            descr = DESCR[which].getBytes( "ASCII" );
        } catch( UnsupportedEncodingException uee ) {
            return 0;
        }

        writeInt2( subCommand & 0xFF, dst, dstIndex );
        dstIndex += 2;
        System.arraycopy( descr, 0, dst, dstIndex, descr.length );
        dstIndex += descr.length;
        writeInt2( 0x0001, dst, dstIndex );
        dstIndex += 2;

        fileType = readInt2( buffer, bufferIndex );
        bufferIndex += 2;
        deviceState = readInt2( buffer, bufferIndex );
        bufferIndex += 2;
        directory = ( buffer[bufferIndex++] & 0xFF ) > 0;

        return bufferIndex - start;
    }
    int readBytesWireFormat( byte[] buffer, int bufferIndex ) {
        return 0;
    }
    public String toString() {

    require(streamId and 0x80000000.toInt() == 0) { "reserved bit set: $streamId" }
    sink.writeMedium(length)
    sink.writeByte(type and 0xff)
    sink.writeByte(flags and 0xff)
    sink.writeInt(streamId and 0x7fffffff)
  }

  @Throws(IOException::class)
  override fun close() {
    this.withLock {
      closed = true
      sink.close()
    }
  }

)

type exprTest struct {
	input  string
	output int64
	atEOF  bool
}

var exprTests = []exprTest{
	// Simple
	{"0", 0, true},
	{"3", 3, true},
	{"070", 8 * 7, true},
	{"0x0f", 15, true},
	{"0xFF", 255, true},
	{"9223372036854775807", 9223372036854775807, true}, // max int64
	// Unary
	{"-0", 0, true},
	{"~0", -1, true},
	{"~0*0", 0, true},
	{"+3", 3, true},
	{"-3", -3, true},

        try {
            descr = DESCR[ which ].getBytes("ASCII");
        }
        catch ( UnsupportedEncodingException uee ) {
            return 0;
        }

        SMBUtil.writeInt2(getSubCommand() & 0xFF, dst, dstIndex);
        dstIndex += 2;
        System.arraycopy(descr, 0, dst, dstIndex, descr.length);
        dstIndex += descr.length;
        SMBUtil.writeInt2(0x0001, dst, dstIndex);
        dstIndex += 2;