From 7e30cf6b0136b97823e8a17280d69eb482ca1fa7 Mon Sep 17 00:00:00 2001
From: IWASE Yusuke <iwase.yusuke0@gmail.com>
Date: Fri, 16 Dec 2016 15:17:38 +0900
Subject: [PATCH] rpc_cli: Avoid to use eval()

Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/cmd/rpc_cli.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/ryu/cmd/rpc_cli.py b/ryu/cmd/rpc_cli.py
index 2c1eb6b3..25b92fa5 100755
--- a/ryu/cmd/rpc_cli.py
+++ b/ryu/cmd/rpc_cli.py
@@ -31,6 +31,7 @@
 
 from __future__ import print_function
 
+import ast
 import cmd
 import signal
 import socket
@@ -139,9 +140,9 @@ class Cmd(cmd.Cmd):
         try:
             peer = args[0]
             method = args[1]
-            params = eval(args[2])
-        except:
-            print("argument error")
+            params = ast.literal_eval(args[2])
+        except (IndexError, ValueError) as e:
+            print("argument error: %s" % e)
             return
         try:
             p = peers[peer]