357   ssize_t nread;  in mqtt_verify_connack()  local
359   result = Curl_read(data, sockfd, (char *)readbuf, MQTT_CONNACK_LEN, &nread);  in mqtt_verify_connack()
363   Curl_debug(data, CURLINFO_HEADER_IN, (char *)readbuf, (size_t)nread);  in mqtt_verify_connack()
366   if(nread < MQTT_CONNACK_LEN) {  in mqtt_verify_connack()
447   ssize_t nread;  in mqtt_verify_suback()  local
450   result = Curl_read(data, sockfd, (char *)readbuf, MQTT_SUBACK_LEN, &nread);  in mqtt_verify_suback()
454   Curl_debug(data, CURLINFO_HEADER_IN, (char *)readbuf, (size_t)nread);  in mqtt_verify_suback()
457   if(nread < MQTT_SUBACK_LEN) {  in mqtt_verify_suback()
586   ssize_t nread;  in mqtt_read_publish()  local
643     result = Curl_read(data, sockfd, (char *)pkt, rest, &nread);  in mqtt_read_publish()
650     if(!nread) {  in mqtt_read_publish()
655     Curl_debug(data, CURLINFO_DATA_IN, (char *)pkt, (size_t)nread);  in mqtt_read_publish()
657     mq->npacket -= nread;  in mqtt_read_publish()
658     k->bytecount += nread;  in mqtt_read_publish()
663     result = Curl_client_write(data, CLIENTWRITE_BODY, (char *)pkt, nread);  in mqtt_read_publish()
701   ssize_t nread;  in mqtt_doing()  local
721     result = Curl_read(data, sockfd, (char *)&mq->firstbyte, 1, &nread);  in mqtt_doing()
722     if(!nread)  in mqtt_doing()
731       result = Curl_read(data, sockfd, (char *)&byte, 1, &nread);  in mqtt_doing()
732       if(!nread)  in mqtt_doing()
737     if(nread && (byte & 0x80))  in mqtt_doing()