fix log dir not work; fix stun config from file not work; (#1393)

easytier/src/easytier-core.rs

@@ -968,8 +968,17 @@ impl NetworkOptions {
         old_udp_whitelist.extend(self.udp_whitelist.clone());
         cfg.set_udp_whitelist(old_udp_whitelist);
 
-        cfg.set_stun_servers(self.stun_servers.clone());
-        cfg.set_stun_servers_v6(self.stun_servers_v6.clone());
+        if let Some(stun_servers) = &self.stun_servers {
+            let mut old_stun_servers = cfg.get_stun_servers().unwrap_or_default();
+            old_stun_servers.extend(stun_servers.iter().cloned());
+            cfg.set_stun_servers(Some(old_stun_servers));
+        }
+
+        if let Some(stun_servers_v6) = &self.stun_servers_v6 {
+            let mut old_stun_servers_v6 = cfg.get_stun_servers_v6().unwrap_or_default();
+            old_stun_servers_v6.extend(stun_servers_v6.iter().cloned());
+            cfg.set_stun_servers_v6(Some(old_stun_servers_v6));
+        }
         Ok(())
     }
 }

easytier/src/utils.rs

@@ -81,9 +81,14 @@ pub fn init_logger(
             });
         }
 
+        let dir = file_config.dir.as_deref().unwrap_or(".");
+        let file = file_config.file.as_deref().unwrap_or("easytier.log");
+        let path = std::path::Path::new(dir).join(file);
+        let path_str = path.to_string_lossy().into_owned();
+
         let builder = RollingFileAppenderBase::builder();
         let file_appender = builder
-            .filename(file_config.file.unwrap_or("easytier.log".to_string()))
+            .filename(path_str)
             .condition_daily()
             .max_filecount(file_config.count.unwrap_or(10))
             .condition_max_file_size(file_config.size_mb.unwrap_or(100) * 1024 * 1024)