Handle inbound connection setup errors

Log and skip runtime listener failures instead of panicking when accepting inbound connections or converting accepted sockets. These errors can happen in normal operation, so keeping the node running is safer than treating them as unreachable.

Co-Authored-By: HAL 9000

Author: tnull

src/lib.rs

@@ -422,12 +422,23 @@ impl Node {
 								break;
 							}
 							res = listener.accept() => {
-								#[allow(clippy::unwrap_used)]
-								let tcp_stream = res.unwrap().0;
+								let tcp_stream = match res {
+									Ok((tcp_stream, _)) => tcp_stream,
+									Err(e) => {
+										log_error!(logger, "Failed to accept inbound connection: {}", e);
+										continue;
+									},
+								};
 								let peer_mgr = Arc::clone(&peer_mgr);
+								let logger = Arc::clone(&logger);
 								runtime.spawn_cancellable_background_task(async move {
-									#[allow(clippy::unwrap_used)]
-									let tcp_stream = tcp_stream.into_std().unwrap();
+									let tcp_stream = match tcp_stream.into_std() {
+										Ok(tcp_stream) => tcp_stream,
+										Err(e) => {
+											log_error!(logger, "Failed to convert inbound connection: {}", e);
+											return;
+										},
+									};
 									lightning_net_tokio::setup_inbound(
 										Arc::clone(&peer_mgr),
 										tcp_stream,