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#!/bin/ksh -p
#
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source.  A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#

#
# Copyright (c) 2016 Joyent, Inc.  All rights reserved.
#

unset LD_LIBRARY_PATH
PATH=/usr/bin:/usr/sbin
export PATH

. /usr/lib/brand/shared/common.ksh

ZONENAME=""
ZONEPATH=""

while getopts "FR:z:" opt
do
	case "$opt" in
		F)	;;
		R)	ZONEPATH="$OPTARG";;
		z)	ZONENAME="$OPTARG";;
		*)	printf "$m_usage\n"
			exit $ZONE_SUBPROC_USAGE;;
	esac
done
shift OPTIND-1

if [[ -z $ZONEPATH || -z $ZONENAME ]]; then
	print -u2 "Brand error: No zone path or name"
	exit $ZONE_SUBPROC_USAGE
fi

# Get the dataset of the parent directory of the zonepath.
dname=${ZONEPATH%/*}
bname=${ZONEPATH##*/}
PDS_NAME=`mount | nawk -v p=$dname '{if ($1 == p) print $3}'`
if [[ -z "$PDS_NAME" ]]; then
	print -u2 "Brand error: missing parent ZFS dataset for $dname"
	exit $ZONE_SUBPROC_USAGE
fi

# check if the origin is not an @final dataset, if not, we'll destroy it
ORIGIN=`zfs get -H -ovalue origin $PDS_NAME/$bname | grep -v "@final$"`

zfs destroy -rF $PDS_NAME/cores/$bname
zfs destroy -rF $PDS_NAME/$bname
if [[ $? != 0 ]]; then
    echo "processes in zone: "
    fuser ${ZONEPATH}
    # Since we are destroying the zone, we don't want to leave a zoneroot behind
    # just because something couldn't be umounted. So we'll also force the
    # umount with the 'f' option here.
    zfs destroy -rfF $PDS_NAME/$bname
fi

[[ -n ${ORIGIN} && ${ORIGIN} != "-" ]] && zfs destroy -F $ORIGIN

rm -rf $ZONEPATH
rm -rf /var/zonecontrol/${ZONENAME}

jcommon_uninstall_hook

exit $ZONE_SUBPROC_OK