Ignore exceptions in litelib_initialize_existing() in a few places

src/settings.cpp

@@ -36,9 +36,14 @@ Config Settings::getSettings() {
     if (server.trimmed().isEmpty()) {
         server = Settings::getRandomServer();
 
+        QString response = "";
         // make sure existing server in conf is alive, otherwise choose random one
-        char* resp = litelib_initialize_existing(false, server.toStdString().c_str());
-        QString response = litelib_process_response(resp);
+        try {
+            char* resp = litelib_initialize_existing(false, server.toStdString().c_str());
+            response = litelib_process_response(resp);
+        } catch (const std::exception& e)  {
+            qDebug() << __func__ << ": caught an exception, ignoring: " << e.what();
+        }
 
         if (response.toUpper().trimmed() != "OK") {
             qDebug() << "Lite server in conf " << server << " is down, getting a random one";
@@ -310,14 +315,14 @@ QString Settings::getRandomServer() {
     // We try every server,in order, starting from a random place in the list
     while (tries < servers.size() ) {
         qDebug() << "Checking if lite server " << server << " is a alive, try=" << tries;
-        char* resp = litelib_initialize_existing(false, server.toStdString().c_str());
 
         QString response = "";
 
         try {
+            char* resp = litelib_initialize_existing(false, server.toStdString().c_str());
             response = litelib_process_response(resp);
         } catch (const std::exception& e)  {
-            qDebug() << __func__ << ": litelib_process_response threw an exception, ignoring: " << e.what();
+            qDebug() << __func__ << ": caught an exception, ignoring: " << e.what();
         }
 
         // if we see a valid connection, return this server