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fix(installer): improve error message when port 4000 is already in use

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Replace .unwrap() on TcpListener::bind with .with_context() so users
see a clear message about the port conflict instead of a panic.

Fixes #906
This commit is contained in:
KAI Maintainer
2026-06-09 11:27:13 -07:00
committed by Markus Unterwaditzer
parent fbd8110be9
commit 2df31300e3
1 changed files with 6 additions and 2 deletions
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installer/src/tplink.rs
+6 -2
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@@ -346,9 +346,13 @@ async fn tplink_launch_telnet_v5(admin_ip: &str) -> Result<(), Error> {
admin_ip: admin_ip.to_owned(), admin_ip: admin_ip.to_owned(),
}); });
let listener = tokio::net::TcpListener::bind("127.0.0.1:4000") let bind_addr = "127.0.0.1:4000";
let listener = tokio::net::TcpListener::bind(bind_addr)
.await .await
.unwrap(); .with_context(|| format!(
"Failed to bind to {bind_addr}. Is another process using this port?\n\
Try closing any application that might be listening on port 4000 and rerun the installer."
))?;
println!("Listening on http://{}", listener.local_addr().unwrap()); println!("Listening on http://{}", listener.local_addr().unwrap());
println!("Please open above URL in your browser and log into the router to continue."); println!("Please open above URL in your browser and log into the router to continue.");