From c3d4972e4596abbf307e91b260096d3782987624 Mon Sep 17 00:00:00 2001
From: Rutger van Beusekom <rutger.van.beusekom@verum.com>
Date: Fri, 22 Nov 2019 22:36:08 +0100
Subject: [PATCH] Do not read a frame past EOF.

* 8sync/systems/websocket/frame.scm (read-frame): Handle EOF.
---
 8sync/systems/websocket/frame.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/8sync/systems/websocket/frame.scm b/8sync/systems/websocket/frame.scm
index 7a71dba..831456a 100644
--- a/8sync/systems/websocket/frame.scm
+++ b/8sync/systems/websocket/frame.scm
@@ -1,5 +1,6 @@
 ;;; guile-websocket --- WebSocket client/server
 ;;; Copyright © 2015 David Thompson <davet@gnu.org>
+;;; Copyright © 2019 Rutger van Beusekom <rutger.van.beusekom@gmail.com>
 ;;;
 ;;; This file is part of guile-websocket.
 ;;;
@@ -309,7 +310,8 @@ MASKING-KEY."
 
     (let ((bv (get-bytevector-n port length)))
       (when masking-key
-        (mask-bytevector! bv masking-key))
+        (unless (eof-object? bv)
+          (mask-bytevector! bv masking-key)))
       bv))
 
   (let* ((type-byte (get-u8 port))
-- 
2.31.1