apps/mdns/mdns.c

21  * - Handling multi-packet known answers
214   /** Number of answers in packet,
215    *  (sum of normal, authoritative and additional answers)
217   u16_t answers;
218   /** Number of unparsed answers */
237   /** Number of normal answers written */
238   u16_t answers;
239   /** Number of authoritative answers written */
241   /** Number of additional answers written */
246   /** If all answers in packet should set cache_flush bit */
262  *  Shared between questions and answers */
1076  * All questions have to be read before the answers.
1302  * Send chosen answers as a reply
1304  * Add all selected answers (first write will allocate pbuf)
1305  * Add additional answers based on the selected answers
1315   u16_t answers = 0;
1317   /* Write answers to host questions */
1324     answers++;
1331     answers++;
1343         answers++;
1356         answers++;
1364   /* Write answers to service questions */
1376       answers++;
1384       answers++;
1392       answers++;
1400       answers++;
1404   /* if this is a response, the data above is anwers, else this is a probe and the answers above goes into auth section */
1406     outpkt->answers += answers;
1408     outpkt->authoritative += answers;
1411   /* All answers written, add additional RRs */
1478     hdr.numanswers = lwip_htons(outpkt->answers);
1557  * 1. Parse all questions and set bits what answers to send
1558  * 2. Clear pending answers if known answers are supplied
1559  * 3. Put chosen answers in new packet and send as reply
1619   /* Handle known answers */
1637       /* Skip known answers for ANY type & class */
1889   packet.answers = packet.answers_left = lwip_ntohs(hdr.numanswers) + lwip_ntohs(hdr.numauthrr) + lwip_ntohs(hdr.numextrarr);
1981   /* Add answers to the questions above into the authority section for tiebreaking */