Patch for Duo Security's OpenVPN plugin to support password concatenation delimiting on rightmost comma (meant to be used with a modified OpenVPN auth-pam plugin)

duo_openvpn.patch

--- duo_openvpn.py.bak	2011-11-01 12:16:36.000000000 -0500
+++ duo_openvpn.py	2012-01-19 10:15:30.728361702 -0600
@@ -162,6 +162,13 @@
     username = os.environ.get('username')
     password = os.environ.get('password')
     ipaddr = os.environ.get('ipaddr', '0.0.0.0')
+    
+    if "," in password:
+        passarray = password.split(',')
+        password = passarray[-1]
+    else:
+        log('no delimiter found (comma)')
+        failure(control)
 
     if not control or not username or not password:
         log('required environment variables not found')