notes and guard

include/llarp/dns.hpp

@@ -30,6 +30,8 @@ struct dns_tracker
   // FIXME: support multiple dns server contexts
   dnsd_context *dnsd;
   // rn we need 1 tracker per DNSd and each DNSd needs it's own IP
+  // actually we can bind once and use the tracker to sort
+  // but no way to tell what DNSd they want...
   // std::map< llarp::Addr, std::unique_ptr< dnsc_answer_request > > dnsds;
   // std::map< uint, dnsd_question_request * > daemon_request;
 };

llarp/dns.cpp

@@ -255,6 +255,14 @@ extern "C"
     // castBuf += 12;
     llarp::LogDebug("msg id ", hdr->id);
     llarp::LogDebug("msg qr ", (uint8_t)hdr->qr);
+    if(!udp)
+    {
+      llarp::LogError("no udp passed in to handler");
+    }
+    if(!addr)
+    {
+      llarp::LogError("no source addr passed in to handler");
+    }
     if(hdr->qr)
     {
       llarp::LogDebug("handling as dnsc answer");