#!/bin/bash
##works on bash and zsh
##SOME CONFIG##
RED="\e[0;31m" ;
YEL="\e[0;33m" ;
NORM="\e[0m" ;
tst=`ifconfig | grep mon | cut -b 1-4`
arr_tst=($(echo $tst | tr " " "\n"))

fun_test() {       ##CHECK THE ERROR STATUS

if [[ $? -eq 0 ]]
    then
        ext="[OK]"
    else
        ext="$RED [ERROR] $NORM"
        exit 1
fi

}


fun_start () {
echo "Searching monitor Interfaces:"
echo -e $YEL
if [[ ${#arr_tst[@]} -eq "0" ]]
    then
        echo "No Monitor mode InterfaceS was found"
    else
        echo -e "This Monitor mode Interfaces was found:"
        #echo ${#arr_tst[@]} TEST INTERFACES NUMBER
        sleep 1
        for r in ${!arr_tst[@]}
            do
                echo ${arr_tst[r]}
            done
    echo "Monitor mode already started
exiting..."
    exit 0
fi

echo -e $NORM

sudo ifconfig wlan0 down &> /dev/null  ##PUT WLAN0 DOWN OPTIONAL

sudo macchanger -r wlan0 &> /dev/null  ## CHANGE MAC WLAN0 OPTIONAL
fun_test
echo -e "set macchanger wlan0: $ext"

sudo airmon-ng start wlan0 &> /dev/null  ## START MON MODE ON WLAN0
fun_test
echo -e "start monitor mode: $ext"

sudo ifconfig mon0 down &> /dev/null ## PUT MON0 DOWN

sudo macchanger -r mon0 &> /dev/null ## CHANGE MAC MON0
fun_test
echo -e "set macchanger mon0: $ext"

sudo ifconfig mon0 up &> /dev/null  ## PUT MON0 UP

}


fun_stop () {

echo "Stopping Monitor mode Interfaces"
if [[ ${#arr_tst[@]} -eq "0" ]]
    then
        echo "No Monitor mode Interface was found exiting..."
        exit 0
    else
        for o in ${!arr_tst[@]}
            do
                sudo airmon-ng stop ${arr_tst[o]} &> /dev/null  ## STOP ALL MON INTERFACES
                fun_test
                echo -e "Stopping ${arr_tst[o]} : $ext"
                sleep 2

            done
    exit 0
fi

}

fun_usage () {
echo -e $YEL
    echo -e "[*]If not yet started, make up & running monitor mode Interfaces"
    echo -e "USAGE: $0 { start | stop }"
    echo
    echo -e "[*] $0 start"
    echo -e "[i] Turn mon0 Monitor mode Interface ON"
    echo
    echo -e "[*] $0 stop"
    echo -e "[i] Turn ALL Monitor mode Interfaces OFF"
echo -e $NORM
exit 0
}

fun_arg () {
if [[ $# != "1" ]]
    then
        echo "need start or stop argument"
        fun_usage
    else
        case $1 in
        start) fun_start  ;;
        stop) fun_stop  ;;
        *) fun_usage ;;
        esac
fi
}



if [ $UID -eq 0 ]   ## CHECK PERMISSION
    then
        echo
    else
        gksu
fi

fun_arg $1