int rn) throws CIFSException {
        if (log.isDebugEnabled()) {
            log.debug("Resolving DFS path " + path);
        }

        if (path.length() >= 2 && path.charAt(0) == '\\' && path.charAt(1) == '\\') {
            throw new SmbException("Path must not start with double slash: " + path);
        }

        try (SmbSessionImpl sess = getSmbSession(ctx, targetHost, targetDomain);

     */
    protected String convertRobotsTxtPatternToRegex(final String path) {
        String newPath = path.replace(".", "\\.").replace("?", "\\?").replace("*", ".*");
        if (newPath.charAt(0) != '/') {
            newPath = ".*" + newPath;
        }
        if (!newPath.endsWith("$") && !newPath.endsWith(".*")) {
            newPath = newPath + ".*";
        }

            return "";
        }
        final StringBuilder sb = new StringBuilder(filter.length() * 2);
        for (int i = 0; i < filter.length(); i++) {
            final char curChar = filter.charAt(i);
            switch (curChar) {
            case '\\':
                sb.append("\\5c");
                break;
            case '*':
                sb.append("\\2a");
                break;