Fail if interface name can't be retrieved

diff --git a/src/detect.c b/src/detect.c
index e97e9df..781b8fa 100644 (file)
--- a/src/detect.c
+++ b/src/detect.c
@@ -140,6 +140,8 @@ static void detect_newlink(unsigned short type, int index,
                return;
 
        devname = index2name(index);
+       if (devname == NULL)
+               return;
 
        if (type == ARPHRD_ETHER) {
                char bridge_path[PATH_MAX], wimax_path[PATH_MAX];