1 files changed, 56 insertions, 0 deletions
diff --git a/tests/link01.at b/tests/link01.at
new file mode 100644
index 0000000..b00047e
--- /dev/null
+++ b/tests/link01.at
@@ -0,0 +1,56 @@
+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+
+# Test suite for GNU tar.
+# Copyright 2004, 2007, 2009, 2013-2014, 2016 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/>.
+
+# Problem: If a member with link count > 2 was stored in the archive twice,
+# previous versions of tar were not able to extract it, since they
+# were trying to link the file to itself, which always failed and
+# lead to removing the already extracted copy. This script tests
+# the workaround by Paul Eggert that leaves the extracted copy
+# untouched.
+#
+# Reported by: Toby Peterson <toby@apple.com>
+#
+# References: <2330D503-D20A-11D8-A0CF-00039391EECE@apple.com>
+# http://lists.gnu.org/archive/html/bug-tar/2004-07/msg00009.html
+
+AT_SETUP([link count gt 2])
+AT_KEYWORDS([hardlinks link01])
+
+AT_TAR_CHECK([
+mkdir directory
+mkdir directory/test1
+mkdir directory/test2
+
+echo TEST > directory/test1/test.txt
+ln directory/test1/test.txt directory/test2/test.txt || AT_SKIP_TEST
+
+tar cf archive directory/test1/test.txt directory/test1/test.txt
+
+rm -r directory
+tar xf archive --warning=no-timestamp
+
+ls directory/test1
+],
+[0],
+[test.txt
+])
+
+AT_CLEANUP