mark = si + 1;
                        state = 5;
                    }
                    break;
                case 5:
                    if (ch == '=') {
                        key = str.substring(mark, si).trim();
                        mark = si + 1;
                    } else if (ch == ',' || ch == ']') {

                // It is more critical than other attributes because append mode depends on it.
                // We do only really care if we open for writing and not shared for writing
                // otherwise there are no guarantees anyway, but this stuff is legacy anyways.
                SmbComSeek seekReq = new SmbComSeek(config, 0);