# Test suite for GNU tar.                             -*- Autotest -*-
# Copyright 2010-2023 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/>.

# Description: Tar 1.23 would in some cases silently fail to create
# a continuation header in multivolume archives.
#
# In this testcase, the file 'a' is 18.5 blocks long and the file 'b'
# is 19.5 blocks long.

AT_SETUP([multivolume header creation])
AT_KEYWORDS([multivolume multiv multiv08])

AT_TAR_CHECK([
genfile --length 9472 --file a
genfile --length 9984 --file b
decho Creating
tar -c -M -L10 -f A.tar -f B.tar -f C.tar a b
decho Testing
tar -tMR -f A.tar -f B.tar -f C.tar
],
[0],
[Creating
Testing
block 0: a
block 21: b
block 43: ** Block of NULs **
],
[Creating
Testing
],
[],
[],
[gnu])

AT_CLEANUP