openai/codex · error · io::Error

invalid host

Error message

invalid host

What it means

Error "invalid host" thrown in openai/codex.

Source

Thrown at codex-rs/network-proxy/src/socks5.rs:206

}

async fn handle_socks5_tcp(
    req: TcpRequest,
    tcp_connector: TargetCheckedTcpConnector,
    policy_decider: Option<Arc<dyn NetworkPolicyDecider>>,
    environment_id: Option<String>,
) -> Result<EstablishedClientConnection<Socks5TcpConnection, TcpRequest>, BoxError> {
    let app_state = req
        .extensions()
        .get::<Arc<NetworkProxyState>>()
        .cloned()
        .ok_or_else(|| io::Error::other("missing state"))?;

    let host = normalize_host(&req.authority.host.to_string());
    let port = req.authority.port;
    let target = req.authority.clone();
    if host.is_empty() {
        return Err(io::Error::new(io::ErrorKind::InvalidInput, "invalid host").into());
    }

    let client = req
        .extensions()
        .get::<SocketInfo>()
        .map(|info| info.peer_addr().to_string());

    match app_state.enabled().await {
        Ok(true) => {}
        Ok(false) => {
            emit_socks_block_decision_audit_event(
                &app_state,
                NetworkDecisionSource::ProxyState,
                REASON_PROXY_DISABLED,
                NetworkProtocol::Socks5Tcp,
                host.as_str(),
                port,
                client.as_deref(),

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/network-proxy/src/socks5.rs:206 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/7ca677050ab1cec7. Report an issue: GitHub.