Add --btalias argument

Allow the user to rename the BLE advertised name of the host system

Author: KreAch3R

README.md

@@ -123,6 +123,7 @@ USAGE:
 
 OPTIONS:
     -a, --advertise                   BLE advertising
+    -b, --btalias                     Specify the BLE name of the device
     -c, --connect <CONNECT>           Auto-connect to saved phone or specified phone MAC address if
                                       provided
     -d, --debug                       Enable debug info

src/bluetooth.rs

@@ -74,13 +74,23 @@ pub async fn get_cpu_serial_number_suffix() -> Result<String> {
 
 async fn power_up_and_wait_for_connection(
     advertise: bool,
+    btalias: Option<String>,
     connect: Option<Address>,
 ) -> Result<(BluetoothState, Stream)> {
     // setting BT alias for further use
-    let alias = match get_cpu_serial_number_suffix().await {
-        Ok(suffix) => format!("{}-{}", BT_ALIAS, suffix),
-        Err(_) => String::from(BT_ALIAS),
-    };
+    let alias: String;
+
+    match btalias {
+        None => {
+            alias = match get_cpu_serial_number_suffix().await {
+                Ok(suffix) => format!("{}-{}", BT_ALIAS, suffix),
+                Err(_) => String::from(BT_ALIAS),
+            };
+        }
+        Some(btalias) => {
+                alias = btalias;
+        }
+    }
     info!("{} 🥏 Bluetooth alias: <bold><green>{}</>", NAME, alias);
 
     let session = bluer::Session::new().await?;
@@ -337,6 +347,7 @@ pub async fn bluetooth_stop(state: BluetoothState) -> Result<()> {
 
 pub async fn bluetooth_setup_connection(
     advertise: bool,
+    btalias: Option<String>,
     iface: &str,
     connect: Option<Address>,
     tcp_start: Arc<Notify>,
@@ -348,7 +359,7 @@ pub async fn bluetooth_setup_connection(
 
     let mut wlan_ip_addr = String::from(DEFAULT_WLAN_ADDR);
 
-    let (state, mut stream) = power_up_and_wait_for_connection(advertise, connect).await?;
+    let (state, mut stream) = power_up_and_wait_for_connection(advertise, btalias, connect).await?;
 
 
     // Get UP interface and IP

src/main.rs

@@ -72,6 +72,13 @@ struct Args {
         default_value = "wlan0"
     )]
     iface: String,
+
+     /// BLE device name
+    #[clap(
+        short,
+        long
+    )]
+    btalias: Option<String>,
 
 }
 
@@ -120,6 +127,7 @@ fn logging_init(debug: bool, log_path: &PathBuf) {
 
 async fn tokio_main(
     advertise: bool,
+    btalias: Option<String>,
     legacy: bool,
     iface: String,
     connect: Option<Address>,
@@ -143,7 +151,7 @@ async fn tokio_main(
 
         let bt_stop;
         loop {
-            match bluetooth_setup_connection(advertise, &iface, connect, tcp_start.clone()).await {
+            match bluetooth_setup_connection(advertise, btalias.clone(), &iface, connect, tcp_start.clone()).await {
                 Ok(state) => {
                     // we're ready, gracefully shutdown bluetooth in task
                     bt_stop = tokio::spawn(async move { bluetooth_stop(state).await });
@@ -219,6 +227,7 @@ fn main() {
     runtime.spawn(async move {
         tokio_main(
             args.advertise,
+            args.btalias,
             args.legacy,
             args.iface,
             args.connect,