From 82177f5669b58c649971bf5c7a8e13ce8fb800f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Xose=20P=C3=A9rez?= <xose.perez@gmail.com>
Date: Fri, 5 Jan 2018 13:45:54 +0100
Subject: [PATCH] Fix bug in RF Bridge when RF code contains the stop byte.
 Check overflow (#357)

---
 code/espurna/rfbridge.ino | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/code/espurna/rfbridge.ino b/code/espurna/rfbridge.ino
index dbd60e8a..2ff7721e 100644
--- a/code/espurna/rfbridge.ino
+++ b/code/espurna/rfbridge.ino
@@ -252,11 +252,14 @@ void _rfbReceive() {
         //DEBUG_MSG_P(PSTR("[RFBRIDGE] Received 0x%02X\n"), c);
 
         if (receiving) {
-            if (c == RF_CODE_STOP) {
+            if (c == RF_CODE_STOP && (_uartpos == 1 || _uartpos == 10)) {
                 _rfbDecode();
                 receiving = false;
-            } else {
+            } else if (_uartpos < 10) {
                 _uartbuf[_uartpos++] = c;
+            } else {
+                // wrong message, should have received a RF_CODE_STOP
+                receiving = false;
             }
         } else if (c == RF_CODE_START) {
             _uartpos = 0;