Wait for DHCP response with a matching transaction id

src/main.rs

@@ -45,10 +45,16 @@ async fn main() {
 
     sock.send_to(&msg_buf, remote_addr).await.unwrap();
 
+    loop {
         let mut recv_buf = [0; 1024];
         let (len, recv_addr) = sock.recv_from(&mut recv_buf).await.unwrap();
+        let recv_msg = Message::decode(&mut Decoder::new(&recv_buf)).unwrap();
+
+        if recv_msg.xid() == msg.xid() {
             println!("{:?} bytes received from {:?}", len, recv_addr);
             println!("{}", &recv_buf[..len].escape_ascii().to_string());
-    let recv_msg = Message::decode(&mut Decoder::new(&recv_buf)).unwrap();
             println!("{}", &recv_msg);
+            break;
+        }
+    }
 }