* Major repository revision

1 files changed, 126 insertions, 0 deletions

diff --git a/core/src/ffluci/sys.lua b/core/src/ffluci/sys.lua
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+++ b/core/src/ffluci/sys.lua
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+--[[
+FFLuCI - System library
+
+Description:
+Utilities for interaction with the Linux system
+
+FileId:
+$Id$
+
+License:
+Copyright 2008 Steven Barth <steven@midlink.org>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at 
+
+	http://www.apache.org/licenses/LICENSE-2.0 
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+]]--
+
+module("ffluci.sys", package.seeall)
+require("posix")
+
+-- Runs "command" and returns its output
+function exec(command)
+	local pp   = io.popen(command)
+	local data = pp:read("*a")
+	pp:close()
+	
+	return data
+end
+
+-- Runs "command" and returns its output as a array of lines
+function execl(command)
+	local pp   = io.popen(command)	
+	local line = ""
+	local data = {}
+	
+	while true do
+		line = pp:read()
+		if (line == nil) then break end
+		table.insert(data, line)
+	end 
+	pp:close()	
+	
+	return data
+end
+
+-- Uses "ffluci-flash" to flash a new image file to the system
+function flash(image, kpattern)
+	local cmd = "ffluci-flash "
+	if kpattern then
+		cmd = cmd .. "-k '" .. kapttern:gsub("'", "") .. "' "
+	end
+	cmd = cmd .. "'" .. image:gsub("'", "") .. "'"
+	
+	return os.execute(cmd)
+end
+
+-- Returns the hostname
+function hostname()
+	return io.lines("/proc/sys/kernel/hostname")()
+end
+
+-- Returns the load average
+function loadavg()
+	local loadavg = io.lines("/proc/loadavg")()
+	return loadavg:match("^(.-) (.-) (.-) (.-) (.-)$")
+end
+
+-- Reboots the system
+function reboot()
+	return os.execute("reboot >/dev/null 2>&1")
+end
+
+
+group = {}
+group.getgroup = posix.getgroup
+
+net = {}
+-- Returns all available network interfaces
+function net.devices()
+	local devices = {}
+	for line in io.lines("/proc/net/dev") do
+		table.insert(devices, line:match(" *(.-):"))
+	end
+	return devices
+end
+
+process = {}
+process.info = posix.getpid 
+
+-- Sets the gid of a process
+function process.setgroup(pid, gid)
+	return posix.setpid("g", pid, gid)
+end
+
+-- Sets the uid of a process
+function process.setuser(pid, uid)
+	return posix.setpid("u", pid, uid)
+end
+
+user = {}
+-- returns user information to a given uid
+user.getuser = posix.getpasswd
+	
+-- Changes the user password of given user
+function user.setpasswd(user, pwd)
+	if pwd then
+		pwd = pwd:gsub("'", "")
+	end
+	
+	if user then
+		user = user:gsub("'", "")
+	end
+	
+	local cmd = "(echo '"..pwd.."';sleep 1;echo '"..pwd.."')|"
+	cmd = cmd .. "passwd '"..user.."' >/dev/null 2>&1"
+	return os.execute(cmd)
+end
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