4ed2262c8b2a1d244a7ecf05d4416b5bd3773fab
[project/luci.git] / src / ffluci / sys.lua
1 --[[
2 FFLuCI - System library
3
4 Description:
5 Utilities for interaction with the Linux system
6
7 FileId:
8 $Id$
9
10 License:
11 Copyright 2008 Steven Barth <steven@midlink.org>
12
13 Licensed under the Apache License, Version 2.0 (the "License");
14 you may not use this file except in compliance with the License.
15 You may obtain a copy of the License at
16
17 http://www.apache.org/licenses/LICENSE-2.0
18
19 Unless required by applicable law or agreed to in writing, software
20 distributed under the License is distributed on an "AS IS" BASIS,
21 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
22 See the License for the specific language governing permissions and
23 limitations under the License.
24
25 ]]--
26
27 module("ffluci.sys", package.seeall)
28 require("ffluci.fs")
29
30 -- Returns the hostname
31 function hostname()
32 return io.lines("/proc/sys/kernel/hostname")()
33 end
34
35 -- Returns the load average
36 function loadavg()
37 local loadavg = io.lines("/proc/loadavg")()
38 return loadavg:match("^(.-) (.-) (.-) (.-) (.-)$")
39 end
40
41 -- Returns all available network interfaces
42 function net_devices()
43 local devices = {}
44 for line in io.lines("/proc/net/dev") do
45 table.insert(devices, line:match(" *(.-):"))
46 end
47 return devices
48 end