Function detect_default_gateway_ip

src/apps/desktop/src/api/remote_connect_api.rs:247–300

()

}

fn detect_default_gateway_ip() -> Option<String> {
    #[cfg(target_os = "macos")]
    {
        let output = bitfun_core::util::process_manager::create_command("route")
            .args(["-n", "get", "default"])
            .output()
            .ok()?;
        if !output.status.success() {
            return None;
        }
        let stdout = String::from_utf8_lossy(&output.stdout);
        let re = Regex::new(r"(?m)^\s*gateway:\s*([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)\s*$").ok()?;
        return re
            .captures(&stdout)
            .and_then(|c| c.get(1).map(|m| m.as_str().to_string()));
    }

    #[cfg(target_os = "linux")]
    {
        let output = bitfun_core::util::process_manager::create_command("ip")
            .args(["route", "show", "default"])
            .output()
            .ok()?;
        if !output.status.success() {
            return None;
        }
        let stdout = String::from_utf8_lossy(&output.stdout);
        let re = Regex::new(r"(?m)^default\s+via\s+([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)\b").ok()?;
        return re
            .captures(&stdout)
            .and_then(|c| c.get(1).map(|m| m.as_str().to_string()));
    }

    #[cfg(target_os = "windows")]
    {
        let output = bitfun_core::util::process_manager::create_command("route")
            .args(["print", "-4"])
            .output()
            .ok()?;
        if !output.status.success() {
            return None;
        }
        let stdout = String::from_utf8_lossy(&output.stdout);
        let re =
            Regex::new(r"(?m)^\s*0\.0\.0\.0\s+0\.0\.0\.0\s+([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)\s+")
                .ok()?;
        return re
            .captures(&stdout)
            .and_then(|c| c.get(1).map(|m| m.as_str().to_string()));
    }

    #[allow(unreachable_code)]
    None
}

/// Detect per-interface gateway IPs by parsing the system routing table.
///