From 87b1b9e2cf7ef5be74b561bf13be796e758bb106 Mon Sep 17 00:00:00 2001
From: Hagen Fritsch <fritsch+git@in.tum.de>
Date: Thu, 11 Aug 2011 12:05:03 +0200
Subject: [PATCH] l0dable/invaders.c: fix potential buffer overflow

---
 firmware/l0dable/invaders.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/firmware/l0dable/invaders.c b/firmware/l0dable/invaders.c
index 94d177c..2e9dc58 100644
--- a/firmware/l0dable/invaders.c
+++ b/firmware/l0dable/invaders.c
@@ -178,9 +178,11 @@ static bool highscore_set(uint32_t score, char nick[]) {
 
 static uint32_t highscore_get(char nick[]){
     MPKT * mpkt= meshGetMessage('i');
-
-    strcpy(nick,(char*)MO_BODY(mpkt->pkt));
-
+    char * packet_nick = (char*)MO_BODY(mpkt->pkt);
+    // the packet crc end is already zeroed
+    if(MAXNICK<MESHPKTSIZE-2-6-1)
+        packet_nick[MAXNICK-1] = 0;
+    strcpy(nick, packet_nick);
 	return MO_TIME(mpkt->pkt);
 }