correctly encode response

llarp/dns/message.cpp

@@ -1,6 +1,7 @@
 #include <llarp/dns/message.hpp>
 #include <llarp/endian.hpp>
 #include <llarp/logger.hpp>
+#include <llarp/buffer.hpp>
 
 namespace llarp
 {
@@ -172,13 +173,19 @@ namespace llarp
         hdr_fields |= (1 << 15);
         const auto& question = questions[0];
         answers.emplace_back();
-        auto& rec    = answers.back();
-        rec.rr_name  = question.qname;
-        rec.rr_type  = question.qtype;
-        rec.rr_class = 1;
-        rec.ttl      = 1;
-        rec.rData.resize(name.size());
-        memcpy(rec.rData.data(), name.c_str(), rec.rData.size());
+        auto& rec       = answers.back();
+        rec.rr_name     = question.qname;
+        rec.rr_type     = question.qtype;
+        rec.rr_class    = 1;
+        rec.ttl         = 1;
+        byte_t tmp[512] = {0};
+        auto buf        = llarp::StackBuffer< decltype(tmp) >(tmp);
+        if(EncodeName(&buf, name))
+        {
+          buf.sz = buf.cur - buf.base;
+          rec.rData.resize(buf.sz);
+          memcpy(rec.rData.data(), buf.base, buf.sz);
+        }
       }
     }