#!/bin/sh -x

KERN=/lib/modules/`uname -r`
if [ -z "$1" ]; then
	if [ -d ${KERN}/source ]; then
		KSRC=${KERN}/source
	else
		KSRC=${KERN}/build
	fi
else
	KSRC="$1"
fi

echo ${KSRC} | grep "/\$" || KSRC="${KSRC}/"

ask_comment()
{
        while true; do
		echo -n "Above definitions found.  Comment out? [y], n "
		read REPLY
                case ${REPLY} in

		n) return 1;;

		""|y) 	sed -i \
				-e "s:^\(CONFIG_IEEE80211.*\):#\1:" \
				${KSRC}/.config || return 1
			sed -i -r \
				-e "s:^(#(un)?def.*CONFIG_IEEE80211.*):/*\1*/:" \
				${KSRC}/include/linux/autoconf.h || return 1
			return 0;;

		*) continue;;
                esac
	done || return 1
}

ask_remove()
{
        while true; do
		echo -n "Above files found.  Remove? [y],n "
		read REPLY

                case ${REPLY} in

		n) return 1;;

		""|y)	find ${KSRC} -follow -type f -name 'ieee80211*' | \
			while read fn; do
				[ ! -d $fn ] && (rm -f ${fn} || return 1)
			done || return 1
			return 0;;

		*) continue;;
                esac
	done || return 1
}

do_check()
{
	echo "Checking in ${KSRC} for ieee80211 components..."

	FILES=`find ${KSRC} -follow -type f -name 'ieee80211*'`

	if [ -n "${FILES}" ]; then
		for file in $FILES; do
			echo "${file}"
		done
		ask_remove || return 1
	fi

	( egrep "^(CONFIG_IEEE80211.*)" ${KSRC}/.config || \
		egrep "^#(un)?def.*(CONFIG_IEEE80211.*)" \
			${KSRC}/include/linux/autoconf.h ) && \
			(ask_comment || return 1)

	return 0
}

do_check