#!/bin/sh
dev=wlan1
#How many SSID's there is in the configuration file
WC=`sudo cat /etc/wifi-radar.conf | grep "\[" | cut -d "[" -f 2 | cut -d "]" -f 1 | cat -n | wc -l`
#Strength of network
netstr=`cat /proc/net/wireless | grep $dev | awk {'print $3'} | cut -d "." -f 1`

# Test network

testnet() {
if [ $netstr > 0 ]
        then
        echo "Network seams to be up, lets test some more"
        echo "Checking what your gateway is please wait"
        netgw=`sudo route 2> /dev/null | grep $dev | grep default | awk {'print $2'}`
        echo "Checking your ping to $netgw (Your gateway) please wait."
        netping=`ping $netgw -c 1 2> /dev/null | grep bytes | grep time | awk {'print $7'} | cut -d "=" -f 2`
        if [ $netping > 0 ]
                then
                echo "Your Ping is $netping"
                echo "Network is functional"
                exit
                # Network is working, why continue ? Exit script
                exit

                else
                #network is not working, lets try and fix it.
                echo "Your Ping is $netping Not what it should be"
                connectnet
                fi
        else
echo "Does not seam to work lets start working on it :)"
connectnet
fi
}
connectnet() {
# wifi-radar config file parser
X=0
until [ $X = $WC ] ;
do
X=`calc $X + 1`
NR=`sudo cat /etc/wifi-radar.conf | grep "\[" | cut -d "[" -f 2 | cut -d "]" -f 1 | cat -n | grep $X | cut -d "$X" -f 2`
if [ $NR = DEFAULT ]
then
echo "0" > /dev/null
else
# Return SSID
sudo iwconfig $dev ESSID $NR
cssid=`sudo iwconfig 2> /dev/null | grep $dev | grep ESSID | awk {'print $4'} | cut -d ":" -f 2 | cut -d '"' -f 2`
printf "Trying to connect to $NR "
if [ "$cssid" = $NR ]
then
printf "successfull \n"
sudo dhclient $dev
exit
else
printf "not successfull \n"
fi
fi

done
}
testnet