From 5950058c76d6b7a97bd9694c95380a3b8075464d Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Sat, 24 Aug 2024 13:19:31 +0200
Subject: [PATCH] Wait for DHCP response with a matching transaction id

---
 src/main.rs | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index fb5456f..43140b9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -45,10 +45,16 @@ async fn main() {
 
     sock.send_to(&msg_buf, remote_addr).await.unwrap();
 
-    let mut recv_buf = [0; 1024];
-    let (len, recv_addr) = sock.recv_from(&mut recv_buf).await.unwrap();
-    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);
+    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());
+            println!("{}", &recv_msg);
+            break;
+        }
+    }
 }