Fixed bug with TXT parsing.

src/dns/client.rs

@@ -510,7 +510,6 @@ impl BootstrapResolver {
 
 #[cfg(feature = "doh")]
 impl Resolver for BootstrapResolver {
-    // TODO use timeout parameter
     fn resolve(&self, uri: &Uri, _config: &Config, timeout: NextTimeout) -> std::result::Result<ResolvedSocketAddrs, ureq::Error> {
         let domain = uri.host().unwrap_or("localhost");
         let port = uri.port_u16().unwrap_or(443);

src/dns/protocol.rs

@@ -312,11 +312,17 @@ impl DnsRecord {
             }
             QueryType::TXT => {
                 let mut txt = String::new();
+                let end_pos = buffer.pos() + data_len as usize;
 
-                let cur_pos = buffer.pos();
-                txt.push_str(&String::from_utf8_lossy(buffer.get_range(cur_pos, data_len as usize)?));
-
-                buffer.step(data_len as usize)?;
+                // TXT RDATA consists of one or more <length><text> segments (RFC 1035 3.3.14)
+                while buffer.pos() < end_pos {
+                    let seg_len = buffer.read()? as usize;
+                    if seg_len > 0 {
+                        let cur_pos = buffer.pos();
+                        txt.push_str(&String::from_utf8_lossy(buffer.get_range(cur_pos, seg_len)?));
+                        buffer.step(seg_len)?;
+                    }
+                }
 
                 Ok(DnsRecord::TXT { domain, data: txt, ttl: TransientTtl(ttl) })
             }

src/dns/server.rs

@@ -107,7 +107,7 @@ pub fn execute_query(context: Arc<ServerContext>, request: &DnsPacket) -> DnsPac
 
         let question = &request.questions[0];
         packet.questions.push(question.clone());
-        log::trace!("Resolving: {}, type {:?}", &question.name, &question.qtype);
+        debug!("Resolving: {}, type {:?}", &question.name, &question.qtype);
 
         let mut resolver = context.create_resolver(Arc::clone(&context));
         let res_code = match resolver.resolve(&question.name, question.qtype, request.header.recursion_desired) {
@@ -246,6 +246,10 @@ impl DnsServer for DnsUdpServer {
                                     debug!("UDP service loop has finished");
                                     break;
                                 }
+                                if code == 10054 {
+                                    // Ignore
+                                    continue;
+                                }
                             }
                             debug!("Failed to read from UDP socket: {:?}", err);
                             continue;