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#!/bin/bash
#
# Copyright (C) 2016 Stanislav Brabec <sbrabec@suse.cz>
#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="loop (fstab)"
. $TS_TOPDIR/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_LOSETUP"
ts_check_test_command "$TS_CMD_MOUNT"
ts_check_test_command "$TS_CMD_UMOUNT"
ts_skip_nonroot
ts_check_prog "mkfs.ext3"
ts_check_prog "dd"
ts_check_prog "stat"
# Default from functions.sh:ts_image_init()
mib=${1:-"5"}
IMG=$(ts_image_init)
mkfs.ext3 -F "$IMG" &> /dev/null || ts_die "Cannot make ext3 on $IMG"
OFFSET=`stat -c %s "$IMG"`
dd if=$IMG of=$IMG oflag=append bs=${mib}M count=1 conv=notrunc status=none
[ -d "$TS_MOUNTPOINT-1" ] || mkdir -p $TS_MOUNTPOINT-1
[ -d "$TS_MOUNTPOINT-2" ] || mkdir -p $TS_MOUNTPOINT-2
echo "second should fail" >>$TS_OUTPUT
$TS_CMD_MOUNT -oloop "$IMG" "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1
$TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" 2>&1 | sed 's/.*://' >>$TS_OUTPUT
$TS_CMD_UMOUNT "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1
echo "should succeed" >>$TS_OUTPUT
$TS_CMD_MOUNT -oloop,sizelimit=$OFFSET "$IMG" "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1
$TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" >> $TS_OUTPUT 2>&1
$TS_CMD_UMOUNT "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1
$TS_CMD_UMOUNT "$TS_MOUNTPOINT-2" >> $TS_OUTPUT 2>&1
echo "both should fail" >>$TS_OUTPUT
LOOPDEV=$($TS_CMD_LOSETUP --find)
$TS_CMD_LOSETUP --offset 1 --sizelimit $OFFSET $LOOPDEV "$IMG"
$TS_CMD_MOUNT -oloop,sizelimit=$OFFSET "$IMG" "$TS_MOUNTPOINT-1" 2>&1 | sed 's/.*://' >>$TS_OUTPUT
$TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" 2>&1 | sed 's/.*://' >>$TS_OUTPUT
$TS_CMD_LOSETUP --detach $LOOPDEV
ts_log "Success"
ts_finalize
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