Zero packet buffers before building output, to reduce risk of information leakage.
diff --git a/src/slaac.c b/src/slaac.c
index 07b8ba4..bd6c9b4 100644
--- a/src/slaac.c
+++ b/src/slaac.c
@@ -146,7 +146,7 @@
 	    struct ping_packet *ping;
 	    struct sockaddr_in6 addr;
  
-	    save_counter(0);
+	    reset_counter();
 
 	    if (!(ping = expand(sizeof(struct ping_packet))))
 	      continue;