#!/bin/bash

do_start() {
	echo "joining wireless network"
	wpa_supplicant -B -D nl80211 -i wlan0 -c /etc/wpa_supplicant.conf
	sleep 5
	echo "starting dhcp client"
	udhcpc -i wlan0
}

do_stop() {
	echo "stopping wpa_supplicant"
	killall wpa_supplicant
	echo "stopping dhcp client"
	killall udhcpc
}

# main
if [[ $# -ne 1 ]]
then
	echo "usage: $0 start|stop|restart"
	exit 1
fi

case $1 in
	start)
		if [[ ! -f "/etc/wpa_supplicant.conf" ]]
		then
			echo "/etc/wpa_supplicant.conf does not exist"
			exit 1
		fi
		do_start
		;;
	stop)
		do_stop
		;;
	restart)
		do_stop
		do_start
		;;
esac

exit 0