truncate.at

gnu tar 源码包。 tar 软件是 Unix 系统下的一个打包软件

# Process this file with autom4te to create testsuite. -*- Autotest -*-

# Test suite for GNU tar.
# Copyright (C) 2005, 2007 Free Software Foundation, Inc.

# This program 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, or (at your option)
# any later version.

# This program 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

# Tar 1.15.1 incorrectly padded archive members that were truncated during
# archiving.
# References: <[e-mail]>
# http://lists.gnu.org/archive/html/bug-tar/2005-05/msg00008.html
#
# The test case is based on the script by Frank Heckenbach <[e-mail]>
# Additionally, the test verifies if tar exits with code 1 (file differs).

AT_SETUP([truncate])
AT_KEYWORDS([truncate filechange])

AT_TAR_CHECK([
genfile --file foo --length 50000k
genfile --file baz
genfile --run 'tar -vcf bar foo baz' --checkpoint 10 --length 49995k --truncate foo
echo Exit status: $?
echo separator
sleep 1
genfile --file foo --seek 49995k --length 5k --pattern=zeros
tar dvf bar],
[1],
[foo
baz
Exit status: 1
separator
foo
foo: Mod time differs
baz
],
[tar: foo: File shrank by 5120 bytes; padding with zeros
])

AT_CLEANUP