208                                            std::string *output) {  in sendCommand()  argument
247     if (!drainAndWaitForAck(*process, command, output)) {  in sendCommand()
273                                                    std::string *output) {  in drainAndWaitForAck()  argument
309                         output->append(buffer, size);  in drainAndWaitForAck()
310                         size_t pos = output->find(PING);  in drainAndWaitForAck()
312                             if (output->size() > pos + PING_SIZE) {  in drainAndWaitForAck()
313                                 size_t extra = output->size() - (pos + PING_SIZE);  in drainAndWaitForAck()
315                                       extra, output->substr(pos + PING_SIZE, 128).c_str());  in drainAndWaitForAck()
317                             output->resize(pos);  in drainAndWaitForAck()
348                                        std::string *output) {  in execute()  argument
352     if (output == nullptr) {  in execute()
353         output = &buffer;  in execute()
355         output->clear();  in execute()
360         res |= sendCommand(IPTABLES_PROCESS, command, output);  in execute()
363         res |= sendCommand(IP6TABLES_PROCESS, command, output);  in execute()