Send a message at startup.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

diff --git a/routeradvert-scan.py b/routeradvert-scan.py
index c499484457efa9208f64c2225c7e8be4ad62c993..b7c592eec90cba1b298d271984675c736fb3fc17 100755 (executable)
--- a/routeradvert-scan.py
+++ b/routeradvert-scan.py
@@ -64,6 +64,8 @@ def check_gone():
     else:
         signal.alarm(int(math.ceil(next - now)))
 
+msg('Starting %s' % sys.argv[0])
+
 signal.signal(signal.SIGALRM, lambda signum, frame: check_gone())
 
 p = subprocess.Popen(['tcpdump', '-elnp', '-i', interface, 'icmp6 and (ip6[40] = 134)'], stdout=subprocess.PIPE)