From: Jo-Philipp Wich <jow@openwrt.org>
Date: Thu, 24 Apr 2014 21:42:48 +0000 (+0000)
Subject: libs/sys: make sure to always return a table from arptable() when no callback is... 
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=commitdiff_plain;h=b2d5843ddc739fdd1f4a7359222d04cef5f88938

libs/sys: make sure to always return a table from arptable() when no callback is passed (#671)
---

diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index 66285249f..df6280dda 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -233,7 +233,8 @@ net = {}
 --			The following fields are defined for arp entry objects:
 --			{ "IP address", "HW address", "HW type", "Flags", "Mask", "Device" }
 function net.arptable(callback)
-	local arp, e, r, v
+	local arp = (not callback) and {} or nil
+	local e, r, v
 	if fs.access("/proc/net/arp") then
 		for e in io.lines("/proc/net/arp") do
 			local r = { }, v