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authorAdrian C. (anrxc) <anrxc@sysphere.org>2009-07-29 17:59:32 +0200
committerAdrian C. (anrxc) <anrxc@sysphere.org>2009-07-29 17:59:32 +0200
commit98e26ee0436822b00d4a6e707d86cf33d24bc00f (patch)
treea2a77a85453835d6235b9a4ee8a4044433c37151 /wifi.lua
downloadvicious-legacy-98e26ee0436822b00d4a6e707d86cf33d24bc00f.tar.xz
Import of vicious source tree.v1.0.0
Vicious is a modular widget library for 'awesome' window manager, derived from the 'Wicked' widget library. Summary of changes: * Original wicked code modularized * Widgets ported from Wicked: - CPU, MEM, FS, NET, Date, Uptime, MPD * CPU widget rewritten, uses pattern matching * MEM widget rewritten, uses pattern matching - Swap widget merged with MEM widget type * FS widget rewritten, uses pattern matching - Also fixed padding in the process * NET widget rewritten, uses pattern matching * MPD widget rewritten, a bit more versatile * Removed deprecated helper functions * Widgets written for Vicious: - Thermal, Battery, Mbox, OrgMode, Volume, Entropy, Disk I/O, System Load, Wireless, Pacman, Maildir
Diffstat (limited to 'wifi.lua')
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+----------------------------------------------------------
+-- Licensed under the GNU General Public License version 2
+-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
+----------------------------------------------------------
+
+-- {{{ Grab environment
+local io = { popen = io.popen }
+local string = {
+ find = string.find,
+ match = string.match
+}
+-- }}}
+
+
+-- Wifi: provides wireless information for a requested interface
+module("vicious.wifi")
+
+
+-- {{{ Wireless widget type
+function worker(format, iface)
+ -- Get data from iwconfig, on distributions where it is executable
+ -- by users, and /sbin or /usr/sbin is in their path
+ local f = io.popen("iwconfig " .. iface)
+ local iw = f:read("*all")
+ f:close()
+
+ -- Setup tables
+ local winfo = {
+ ["{ssid}"] = "N/A",
+ ["{mode}"] = "N/A",
+ ["{chan}"] = "N/A",
+ ["{rate}"] = "N/A",
+ ["{link}"] = "N/A",
+ ["{sign}"] = "N/A"
+ }
+
+ -- Check if iwconfig wasn't found, can't be executed or the
+ -- interface is not a wireless one
+ if iw == nil or string.find(iw, "No such device") then
+ return winfo
+ else
+ -- The output differs from system to system, some stats can
+ -- be separated by =, and not all drivers report all stats
+ winfo["{ssid}"] = -- SSID can have almost anything in it
+ string.match(iw, 'ESSID[=:]"([%w]+[%s]*[%w]*]*)"') or winfo["{ssid}"]
+ winfo["{mode}"] = -- Modes are simple, but also match the "-" in Ad-Hoc
+ string.match(iw, "Mode[=:]([%w%-]*)") or winfo["{mode}"]
+ winfo["{chan}"] = -- Channels are plain digits
+ string.match(iw, "Channel[=:]([%d]+)") or winfo["{chan}"]
+ winfo["{rate}"] = -- Bitrate can start with a space and we want to display Mb/s
+ string.match(iw, "Bit Rate[=:]([%s]?[%d%.]*[%s][%/%a]+)") or winfo["{rate}"]
+-- winfo["{link}"] = -- Link quality can contain a slash: 32/100
+-- string.match(iw, "Link Quality[=:]([%d]+[%/%d]*)") or winfo["{link}"]
+ winfo["{link}"] = -- * match only the first number, great data for a progressbar
+ string.match(iw, "Link Quality[=:]([%d]+)") or winfo["{link}"]
+ winfo["{sign}"] = -- Signal level can be a negative value, also display decibel notation
+ string.match(iw, "Signal level[=:]([%-%d]+[%s][%a]*)") or winfo["{sign}"]
+ end
+
+ return winfo
+end
+-- }}}