From 263fb160194ace775f3ddc668682257f14b100cf Mon Sep 17 00:00:00 2001
From: Dick Marinus <dick@mrns.nl>
Date: Mon, 6 Jun 2016 20:57:11 +0200
Subject: [PATCH] glibc fixes

I don't know how this can work on the Arduino. strtok_r returns a null pointer if there are no more tokens and str[0] seems to be poking around in that null pointer.
---
 firmwares/xybot/xybot.ino | 1 +
 1 file changed, 1 insertion(+)

diff --git a/firmwares/xybot/xybot.ino b/firmwares/xybot/xybot.ino
index dc4535c..318a8da 100644
--- a/firmwares/xybot/xybot.ino
+++ b/firmwares/xybot/xybot.ino
@@ -217,6 +217,7 @@ void parseCordinate(char * cmd)
   tarY = curY;
   while(str!=NULL){
     str = strtok_r(0, " ", &tmp);
+    if (str==NULL) break;
     if(str[0]=='X'){
       tarX = atof(str+1);
     }else if(str[0]=='Y'){