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[lwip-devel] [patch #9555] Add MDNS probing

From: Erik Ekman
Subject: [lwip-devel] [patch #9555] Add MDNS probing
Date: Sun, 28 Jan 2018 15:36:23 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36

Follow-up Comment #2, patch #9555 (project lwip):

Thanks, this looks very promising!

I don't think the nullcheck works in mdns_resp_restart() since NETIF_TO_HOST
already deferences it:
+  struct mdns_host* mdns = NETIF_TO_HOST(netif);
+  LWIP_ERROR("mdns_resp_start: netif != NULL", (netif != NULL), return);

Not sure if it makes sense to include the _services._dns-sd._udp.local ->
service type PTR and also the service type to service name PTR among the probe
authorative answers. Does the RFC give guidance on this? Or other


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