From 72be91647cb5d90d7c4ed5f77da840abc9288ec3 Mon Sep 17 00:00:00 2001
From: itnihao <itnihao@qq.com>
Date: Sun, 15 Dec 2013 17:42:18 +0800
Subject: [PATCH] fix return null iptables.append

return null in iptables.append,fix it
```
salt 'node1' iptables.append filter INPUT rule='-s 0.0.0.0 -p tcp --dport 80 -j ACCEPT'
node1:
    True
salt 'node1' iptables.append filter INPUT rule='-s 0.0.0.0 -p tcp --dport 80 -j ACCEPT4'
node1:
    False
```
---
 salt/modules/iptables.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/salt/modules/iptables.py b/salt/modules/iptables.py
index b8c38a3d17..bfe31b21b0 100644
--- a/salt/modules/iptables.py
+++ b/salt/modules/iptables.py
@@ -407,7 +407,10 @@ def append(table='filter', chain=None, rule=None):
 
     cmd = 'iptables -t {0} -A {1} {2}'.format(table, chain, rule)
     out = __salt__['cmd.run'](cmd)
-    return out
+    if len(out) == 0 :
+        return True
+    else:
+        return False
 
 
 def insert(table='filter', chain=None, position=None, rule=None):