# Check hard link with nonzero size field in tarball. -*- Autotest -*-

# Copyright 2026 Free Software Foundation, Inc.

# This file is part of GNU tar.

# GNU tar 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 3 of the License, or
# (at your option) any later version.

# GNU tar 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.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Check extracting from a nonconforming tarball that has
# a hard link with nonzero size.

AT_SETUP([hard link with a nonzero size field])
AT_KEYWORDS([extract extrac34 hard link])
AT_DATA([archive.in],
[/Td6WFoAAATm1rRGBMBwgFAhARwAAAAAAAAAAAbKrCjgJ/8AaF0AMIAzUBhoiawFdYeRen4lxlj0
QWRLpUM+28ArRsXVY5bGv4H5kijsqiJ4Z9YIVhZd01+IppF+AkltS60aB8fuUW35Tp/3XzUx9Mq2
4ypJFzvcgHXsSIvc9L+mmTDuHzhvJQ/oe7ya8QAASbOfD7CgZcIAAYwBgFAAAEWxohaxxGf7AgAA
AAAEWVo=
])
AT_CHECK([base64 --help >/dev/null 2>&1 || AT_SKIP_TEST
xz --help >/dev/null 2>&1 || AT_SKIP_TEST
base64 -d < archive.in | xz -c -d > archive.tar
])
AT_CHECK([mkdir dir
])
AT_CHECK([tar -C dir -xf archive.tar || exit 1
cmp dir/a dir/b
])
AT_CLEANUP