From 5910d26ef1d1e80e8c1576737c46ba6810892a36 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 1 Aug 2021 19:27:42 +0100
Subject: [PATCH] drop empty frames before xmit

Server hates them!

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 src/slip.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/slip.rs b/src/slip.rs
index 364901d..f042a31 100644
--- a/src/slip.rs
+++ b/src/slip.rs
@@ -48,6 +48,7 @@ impl Debug for Frames {
 impl Frames {
   #[throws(Frame)]
   pub fn add(&mut self, max: u32, frame: Frame) {
+    if frame.len() == 0 { return }
     let new_total = self.total_len + frame.len() + 1;
     if new_total > max.sat() { throw!(frame) }
     self.total_len = new_total;
-- 
2.30.2