From edc8d003b20fae2069319b9d010e211a41bb8252 Mon Sep 17 00:00:00 2001
From: dudongcheng <dongcheng.du@gmail.com>
Date: Thu, 22 Jun 2017 19:49:44 +0800
Subject: [PATCH] fixbug

---
 data_link.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/data_link.cpp b/data_link.cpp
index 9a4a12e..27cda23 100644
--- a/data_link.cpp
+++ b/data_link.cpp
@@ -1,4 +1,5 @@
 #include "data_link.h"
+#include <cstring>
 #include <pcap.h>
 
 int datalink2off(int dl_id)