From 0e592faadecfb3bc2705bf0d9e434163e4b914ca Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Fri, 16 Jan 2009 18:10:21 +0000
Subject: fixed packet length errors

---
 src/bsd/tun.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/bsd')

diff --git a/src/bsd/tun.c b/src/bsd/tun.c
index b609a3c..43da1d0 100644
--- a/src/bsd/tun.c
+++ b/src/bsd/tun.c
@@ -256,6 +256,9 @@ int tun_write(tun_device_t* dev, u_int8_t* buf, u_int32_t len)
   if(!dev || dev->fd_ < 0)
     return -1;
 
+  if(!buf)
+    return 0;
+
   if(dev->with_pi_)
   {
     struct iovec iov[2];
-- 
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