nd300 3.3.0

Cross-platform network diagnostic tool
Documentation 
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use super::cmd::{run_cmd, TIMEOUT_QUICK};

/// ARP cache flush — all platforms.
pub async fn flush_arp() -> Result<String, String> {
    #[cfg(windows)]
    {
        let mut cmd = tokio::process::Command::new("arp");
        cmd.args(["-d", "*"]);
        match run_cmd(cmd, TIMEOUT_QUICK).await {
            Ok(output) if output.status.success() => Ok("ARP cache flushed".to_string()),
            Ok(output) => Err(String::from_utf8_lossy(&output.stderr).trim().to_string()),
            Err(e) => Err(e),
        }
    }

    #[cfg(target_os = "macos")]
    {
        let mut cmd = tokio::process::Command::new("arp");
        cmd.args(["-d", "-a"]);
        match run_cmd(cmd, TIMEOUT_QUICK).await {
            Ok(output) if output.status.success() => Ok("ARP cache flushed".to_string()),
            Ok(output) => Err(String::from_utf8_lossy(&output.stderr).trim().to_string()),
            Err(e) => Err(e),
        }
    }

    #[cfg(target_os = "linux")]
    {
        let mut cmd = tokio::process::Command::new("ip");
        cmd.args(["neigh", "flush", "all"]);
        match run_cmd(cmd, TIMEOUT_QUICK).await {
            Ok(output) if output.status.success() => Ok("ARP cache flushed".to_string()),
            Ok(output) => Err(String::from_utf8_lossy(&output.stderr).trim().to_string()),
            Err(e) => Err(e),
        }
    }
}