Fixed block requests.

src/p2p/network.rs

@@ -453,7 +453,7 @@ fn handle_message(context: Arc<Mutex<Context>>, message: Message, peers: &mut Pe
                 let mut context = context.lock().unwrap();
                 context.chain.update_max_height(height);
                 info!("Peer is higher, requesting block {} from {}", height, peer.get_addr().ip());
-                State::message(Message::GetBlock { index: height })
+                State::message(Message::GetBlock { index: my_height + 1 })
             } else if my_height == height && hash.ne(&my_hash) {
                 info!("Hashes are different, requesting block {} from {}", my_height, peer.get_addr().ip());
                 info!("My hash: {:?}, their hash: {:?}", &my_hash, &hash);
@@ -471,7 +471,7 @@ fn handle_message(context: Arc<Mutex<Context>>, message: Message, peers: &mut Pe
                 let mut context = context.lock().unwrap();
                 context.chain.update_max_height(height);
                 info!("Peer is higher, requesting block {} from {}", height, peer.get_addr().ip());
-                State::message(Message::GetBlock { index: height })
+                State::message(Message::GetBlock { index: my_height + 1 })
             } else if my_height == height && hash.ne(&my_hash) {
                 info!("Hashes are different, requesting block {} from {}", my_height, peer.get_addr().ip());
                 info!("My hash: {:?}, their hash: {:?}", &my_hash, &hash);