From e6dece05c9b40892538d25d3eb19c16244df49a5 Mon Sep 17 00:00:00 2001
From: Leandro Lucarella <luca@llucax.com.ar>
Date: Tue, 20 Jun 2006 02:08:57 +0000
Subject: [PATCH] Check if the interface exists.

---
 rotate-key | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rotate-key b/rotate-key
index 14e20f1..7f4d2fb 100644
--- a/rotate-key
+++ b/rotate-key
@@ -40,6 +40,12 @@ HASH_PROG="sha1sum"
 
 export LANG=C
 
+# Check if interface exists
+if ! /sbin/ifconfig "$IFACE" > /dev/null 2>&1
+then
+  exit 0
+fi
+
 # Check if they are using our essid
 if [ -n "$ESSID" ]
 then
-- 
2.43.0