final int start = dstIndex;

        dst[dstIndex] = (byte) 0x04;
        dstIndex++;
        dstIndex += writeString(oldFileName, dst, dstIndex);
        dst[dstIndex++] = (byte) 0x04;
        if (useUnicode) {
            dst[dstIndex++] = (byte) '\0';
        }
        dstIndex += writeString(newFileName, dst, dstIndex);

        return dstIndex - start;
    }

    @Override

            return 0;
        }
        bufferIndex += len + 1;
        // win98 observed not returning nativeFileSystem
        /* Problems here with iSeries returning ASCII even though useUnicode = true
         * Fortunately we don't really need nativeFileSystem for anything.
        if( byteCount > bufferIndex - start ) {
            nativeFileSystem = readString( buffer, bufferIndex );

        return bufferIndex - start;
    }

    @Override
    int readDataWireFormat(final byte[] buffer, int bufferIndex, final int len) {
        final int start = bufferIndex;
        SmbShareInfo e;

        useUnicode = false;

        results = new SmbShareInfo[numEntries];
        for (int i = 0; i < numEntries; i++) {
            results[i] = e = new SmbShareInfo();
            e.netName = readString(buffer, bufferIndex, 13, false);

    @BeforeEach
    public void setup() throws Exception {
        this.cfg = new BaseConfiguration(true);
    }

    /**
     * Sub-class of {@link BaseConfiguration} that forces {@code useUnicode()}
     * to return {@code false}. This mimics an ASCII only client
     */
    private static class OffUnicodeConfig extends BaseConfiguration {
        public OffUnicodeConfig() throws Exception {
            super(true);

            return 0;
        }
        bufferIndex += len + 1;
        // win98 observed not returning nativeFileSystem
        // Problems here with iSeries returning ASCII even though useUnicode = true
        // Fortunately we don't really need nativeFileSystem for anything.
        // However, we'll try to read it safely for compatibility
        if (this.byteCount > bufferIndex - start) {
            try {

        return dstIndex - start;
    }

    @Override
    int writeBytesWireFormat(final byte[] dst, final int dstIndex) {
        int n = writeString(path, dst, dstIndex);
        writeInt2(useUnicode ? path.length() * 2 : n, dst, namelen_index);
        return n;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

        subCommand = SmbComTransaction.TRANS2_FIND_FIRST2;
    }

    String readString(final byte[] src, final int srcIndex, int len) {
        String str = null;
        try {
            if (useUnicode) {
                // should Unicode alignment be corrected for here?
                str = new String(src, srcIndex, len, UNI_ENCODING);
            } else {

    protected SecureRandom random;
    /** Whether to use command batching for improved performance */
    protected boolean useBatching = false;
    /** Whether to use Unicode encoding for strings */
    protected boolean useUnicode = true;
    /** Force use of Unicode encoding regardless of negotiation */
    protected boolean forceUnicode = false;
    /** Whether SMB signing is preferred but not required */
    protected boolean signingPreferred = false;

        smb.useUnicode = false;
        byte[] buffer = new byte[6];
        System.arraycopy("short".getBytes(), 0, buffer, 0, 5);
        buffer[5] = 0; // Null terminator
        String result = smb.readString(buffer, 0, 5, false);
        assertEquals("short", result);
    }

    @Test
    void testReadStringWithMaxLengthExceeded() {
        smb.useUnicode = false;

    public void testBatchLimitForDifferentCommands() throws CIFSException {
        Properties props = new Properties();
        props.setProperty("jcifs.smb.client.useBatching", "true");
        props.setProperty("jcifs.smb.client.useUnicode", "true");

        PropertyConfiguration config = new PropertyConfiguration(props);

        // Test various command batch limits
        int readAndXClose = config.getBatchLimit("ReadAndX.Close");