WiFi script.

Question

Well I made a wifi script for myself because netcfg didn't like working and I was tired of my makeshift connect script. So I made this ruby script to help me learn and to have a useful connect script so I thought that others might find it useful.
#!/usr/bin/ruby
# kukri
$help = <<HELP
Kukri
WiFi script by Dart27 <[email protected]>
usage
scriptname [interface]
-s --scan Scans for access points.
-c --connect SSID {Hexkey|s:asciikey} Connect to an access point
-d --disconnect Disconnect from current access point
-h --help Displays this help and exits
-i --information Displays SSID and signal strength
You can edit the source file to change the default interface and DHCP client.
Note for wep users, if you are using an ascii key, prepend a "s:" to your key.
ex: kukri -c accesspoint s:password
Missing a feature? Contact me.
HELP
INTERFACE = :wlan0 # Edit for default extension
DHCPCLIENT = :dhclient # Edit for default dhcp client
class WifiTools
def initialize interface = INTERFACE
@interface = interface
end
def scan
networks = `iwlist #{@interface} scan`.split(/Cell \d*/)
networks.shift
networks.each do |results|
puts results.match(/SSID:\".*"/).to_s.gsub('"','')
print "\t", results.match(/Channel:\d+/).to_s.concat("\n")
print "\t", results.match(/Quality=\d+\/\d+/).to_s.sub("Quality=",'Strenth:').to_s.concat("\n")
print "\t", results.match(/Encryption .*\s/).to_s.sub(' ',':')
end
end
def connect essid, key = nil
if `sudo ifconfig wlan0 up` != ''
abort("Please run the script using sudo or as root")
end
unless key
puts "Connecting to #{essid}"
if `sudo iwconfig #{@interface} essid #{essid}` == ''
puts "Connected to #{essid}"
else
abort("Could not connect")
end
else
puts "Connecting to #{essid} with WEP encryption"
if `sudo iwconfig #{@interface} essid #{essid} key #{key}` == ''
puts "Connected to #{essid}"
else
abort("Could not connect")
end
end
`sudo #{DHCPCLIENT} -q -n #{@interface}`
puts "#{DHCPCLIENT.to_s.capitalize} started."
end
def disconnect
"Disconnecting #{@interface}"
if `sudo iwconfig #{@interface} essid off` != ''
"Disconnect failed! Try running as root"
end
end
def information
"Current Connection"
info = `iwconfig #{@interface}`
puts info.match(/SSID:\".*"/)
puts info.match(/Quality=\d+\/\d+/).to_s.sub("Quality=",'Strenth:')
end
end
#wifi = Config.new(ARGV.first) if ARGV.first =~ /\w\d/ else
case ARGV.first()
when /\w\w/
wifi = WifiTools.new(ARGV.shift)
else
wifi = WifiTools.new()
end
case ARGV.first()
when "--scan", "-s"
wifi.scan
when "--connect", "-c"
wifi.connect ARGV[1], ARGV[2]
when "--disconect", "-d"
wifi.disconnect
when "--information", "-i"
wifi.information
when "--help", "-h"
print $help
else
print $help
end

Answer 1

Because this isn't a project and netcfg didn't work for me. So I just made something that will work without a lot of hassle.