proxy client: catch name resolving exception

src/dht_proxy_client.cpp

@@ -490,10 +490,11 @@ DhtProxyClient::getProxyInfos()
     if (statusThread_.joinable())
         statusThread_.join();
     statusThread_ = std::thread([this, serverHost]{
-        auto hostAndService = splitPort(serverHost);
-        auto resolved_proxies = SockAddr::resolve(hostAndService.first, hostAndService.second);
         struct SuccessCount {std::atomic_uint ipv4 {0}, ipv6 {0};};
         auto successCount = std::make_shared<SuccessCount>();
+        try {
+            auto hostAndService = splitPort(serverHost);
+            auto resolved_proxies = SockAddr::resolve(hostAndService.first, hostAndService.second);
             std::vector<std::future<Sp<restbed::Response>>> reqs;
             reqs.reserve(resolved_proxies.size());
             for (const auto& resolved_proxy: resolved_proxies) {
@@ -535,6 +536,9 @@ DhtProxyClient::getProxyInfos()
             for (auto& r : reqs)
                 r.get();
             reqs.clear();
+        } catch (const std::exception& e) {
+            DHT_LOG.e("Error sending proxy info request: %s", e.what());
+        }
         if (successCount->ipv4 == 0) onProxyInfos(Json::Value{}, AF_INET);
         if (successCount->ipv6 == 0) onProxyInfos(Json::Value{}, AF_INET6);
         ongoingStatusUpdate_.clear();