sqlmapproject/sqlmap · error · OperationalError

unexpected Firebird operation %d

Error message

unexpected Firebird operation %d

What it means

Error "unexpected Firebird operation %d" thrown in sqlmapproject/sqlmap.

Source

Thrown at extra/dbwire/firebird.py:488

        try:
            if self._db_handle is not None:
                self._send(_pack_int(_op_detach) + _pack_int(self._db_handle))
                self._response()
        except Exception:
            pass
        self._wire.close()

    # ---- wire helpers ----

    def _send(self, data):
        self._wire.send(data)

    def _response(self):
        op = self._wire.recv_int()
        while op == _op_dummy:
            op = self._wire.recv_int()
        if op != _op_response:
            raise OperationalError("unexpected Firebird operation %d" % op)
        return _parse_response(self._wire)

    # ---- query ----

    def _query(self, query):
        try:
            return self._run(query)
        except (struct.error, IndexError, ValueError, KeyError) as ex:
            raise InterfaceError("malformed server response: %s" % ex)

    def _run(self, query):
        qbytes = query.encode("utf-8")
        self._send(_pack_int(_op_allocate_statement) + _pack_int(self._db_handle))
        stmt = self._response()[0]

        try:
            desc_items = bytes(bytearray([_isc_info_sql_stmt_type])) + _INFO_SQL_SELECT_DESCRIBE_VARS
            self._send(_pack_int(_op_prepare_statement) + _pack_int(self._trans_handle) + _pack_int(stmt) +

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at extra/dbwire/firebird.py:488 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sqlmapproject/sqlmap@0a35b20e39 (2026-08-26). Data as JSON: /api/errors/e07c848a1e0d11e2. Report an issue: GitHub.