NanoDroid/Full/system/xbin/nanodroid-prop

#!/system/bin/sh

export NO_MAGISK=0
export MODPATH=@MODPATH@

[ -z "${MODPATH}" ] && NO_MAGISK=1

add_prop () {
	[[ ! -f ${MODPATH}/system.prop ]] && \
		touch ${MODPATH}/system.prop

	resetprop ${1} ${2}

	sed "/^${1}/d" -i ${MODPATH}/system.prop
	echo "${1}=${2}" >> "${MODPATH}/system.prop"
}

remove_prop () {
	[[ -f ${MODPATH}/system.prop ]] && \
		sed "/^${1}/d" -i ${MODPATH}/system.prop
}

list_props () {
	if [[ ! -f ${MODPATH}/system.prop ]]; then
		echo "no properties added by NanoDroid"
	else	echo "properties added by NanoDroid:"
		cat ${MODPATH}/system.prop
	fi
}

error () {
	echo "!! ${@}"
	exit 1
}

[[ $(whoami) != "root" ]] && error "not running as root"

if [[ ${NO_MAGISK} -eq 0 ]]; then

case ${1} in
	-C | --cast )
		add_prop persist.debug.wfd.enable 1
	;;

	-A | --add-prop )
		if [ ! -z ${2} -a ! -z ${3} ]; then
			add_prop "${2}" "${3}"
		fi
	;;

	-R | --remove-prop )
		if [ ! -z ${2} ]; then
			remove_prop "${2}"
		fi
	;;

	-L | --list-props )
		list_props
	;;

	* )
	echo "nanodroid-prop

Utilize Magisk's resetprop (props survive NanoDroid update)

-C | --cast				enable cast [fix for a few custom ROMS]
-A | --add-prop		[prop] [value]	add system property set by NanoDroid
-R | --remove-prop	[prop]		remove system property set by NanoDroid
-L | --list-prop			list system properties set by NanoDroid"
	;;
esac

else
	error "*** Resetprop feature is not available in System Mode! ***"
fi