Test extracting sparse files over a pipe.

tests/sparse02.at

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+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+
+# Test suite for GNU tar.
+# Copyright (C) 2004 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 2, 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., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+AT_SETUP([Extracting sparse file over a pipe])
+AT_KEYWORDS([sparse02])
+
+# Tar 1.14 - 1.15.1 was unable to extract sparse files to a pipe.
+# References: <16896.21739.460782.124775@jik.kamens.brookline.ma.us>
+# http://lists.gnu.org/archive/html/bug-tar/2005-02/msg00003.html 
+
+AT_TAR_CHECK([
+genfile --sparse --file sparsefile --block-size 512 0 ABCD 1M EFGH 2000K IJKL
+tar -c -f archive --sparse sparsefile || exit 1
+echo separator
+
+tar xfO archive | cat - > sparsecopy || exit 1
+cmp sparsefile sparsecopy
+],
+[0],
+[separator
+],
+[],[],[],[posix, gnu, oldgnu])
+
+AT_CLEANUP