fix

src/config/parse.rs

@@ -39,20 +39,11 @@ pub fn parse_opts(globals: &mut Globals, backends: &mut Backends) -> Result<()>
     },
     anyhow!("Wrong port spec.")
   );
-  let mut listen_addresses: Vec<&str> = Vec::new();
-  if let Some(v) = config.listen_only_ipv6 {
-    if v {
-      listen_addresses.extend(LISTEN_ADDRESSES_V6.iter());
-    } else {
-      listen_addresses.extend(LISTEN_ADDRESSES_V4.iter());
-    }
-  } else if let Some(v) = config.listen_ipv6 {
-    listen_addresses.extend(LISTEN_ADDRESSES_V4.iter());
+  let mut listen_addresses: Vec<&str> = LISTEN_ADDRESSES_V4.to_vec();
+  if let Some(v) = config.listen_ipv6 {
     if v {
       listen_addresses.extend(LISTEN_ADDRESSES_V6.iter());
     }
-  } else {
-    listen_addresses.extend(LISTEN_ADDRESSES_V4.iter());
   }
   globals.listen_sockets = listen_addresses
     .iter()

src/config/toml.rs

@@ -8,7 +8,6 @@ pub struct ConfigToml {
   pub listen_port: Option<u16>,
   pub listen_port_tls: Option<u16>,
   pub listen_ipv6: Option<bool>,
-  pub listen_only_ipv6: Option<bool>,
   pub max_concurrent_streams: Option<u32>,
   pub max_clients: Option<u32>,
   pub apps: Option<Apps>,

src/main.rs

@@ -69,7 +69,7 @@ fn main() {
       apps: HashMap::<String, Backend>::default(),
     };
 
-    let _ = parse_opts(&mut globals, &mut backends).expect("Invalid configuration");
+    parse_opts(&mut globals, &mut backends).expect("Invalid configuration");
 
     entrypoint(Arc::new(globals), Arc::new(backends))
       .await

src/proxy/proxy_handler.rs

@@ -249,7 +249,7 @@ fn remove_connection_header(headers: &mut HeaderMap) {
 }
 
 fn remove_hop_header(headers: &mut HeaderMap) {
-  let _ = HOP_HEADERS.iter().for_each(|key| {
+  HOP_HEADERS.iter().for_each(|key| {
     headers.remove(*key);
   });
 }

src/proxy/proxy_tls.rs

@@ -19,7 +19,7 @@ where
         for (server_name, backend) in self.backends.apps.iter() {
           if backend.tls_cert_key_path.is_some() && backend.tls_cert_path.is_some() {
             if let Err(_e) = backend.update_server_config().await {
-              warn!("Failed to update certs for {}", server_name);
+              warn!("Failed to update certs for {}: {}", server_name, _e);
             }
           }
         }