From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 8 Aug 2021 01:29:31 +0000 (+0100)
Subject: slip: do not use zero padding when packet too short
X-Git-Tag: hippotat/1.0.0~233
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=ed8719c83003c42d00e143debda90a80df9ca5f2;p=hippotat.git

slip: do not use zero padding when packet too short

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/slip.rs b/src/slip.rs
index 67b4d40..2e6b8c5 100644
--- a/src/slip.rs
+++ b/src/slip.rs
@@ -92,6 +92,8 @@ where AC: Fn(&[u8]) -> Result<(), PacketError>,
     }
   }
   let _ = wheader.write(walk);
+  let wheader_len = wheader.len();
+  let header = &header[0.. header.len() - wheader_len];
 
   addr_chk(&header)?;