mdtools.subr

if [ ! "$_CBSD_MDTOOLS_SUBR" ]; then
_CBSD_MDTOOLS_SUBR=1
###

# return md device for vnode presentation by $1 file
# A=$( eval find_md_by_img /usr/jails/jails-data/image.dat )
find_md_by_img() {
	local _imgpath

	[ -z "${1}" ] && return 1
	_imgpath=$1

	/sbin/mdconfig -vl 2>/dev/null| while read _md _type _null _path; do
		[ "${_path}" = "${_imgpath}" -a "${_type}" = "vnode" ] && printf ${_md##/dev/}
	done
}

#return md device for vnode presentation by mountd directory
# A=$(eval find_md_by_mountpath /usr/jails/jails-data/olevole-data)
find_md_by_mountpath() {
	local _mountpath _tst

	[ -z "${1}" ] && return 1
	_mountpath=${1}

	/bin/df ${_mountpath} 2>/dev/null| tail +2 |while read _md _null _null _null _null _path; do
		[ "${_path}" = "${_mountpath}" ] && printf ${_md##/dev/}
	done
}

#return md device for vnode presentation by mountd directory
# A=$( eval find_path_by_md md0)
find_path_by_md() {
	local _mountpath _tst

	[ -z "${1}" ] && return 1
	_rootmd="/dev/${1}"

	/bin/df ${_mountpath} 2>/dev/null| /usr/bin/tail +2 |while read _md _null _null _null _null _path; do
		[ "${_rootmd}" = "${_md}" ] && printf ${_path}
	done
}

###
fi