tar/test/test_option_s.c - third_party/libarchive - Git at Google

 /*-
  * Copyright (c) 2003-2008 Tim Kientzle
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #include "test.h"
 __FBSDID("$FreeBSD: src/usr.bin/tar/test/test_option_T.c,v 1.3 2008/08/15 06:12:02 kientzle Exp $");

 DEFINE_TEST(test_option_s)
 {
 	struct stat st;

 	/* Create a sample file hierarchy. */
 	assertMakeDir("in", 0755);
 	assertMakeDir("in/d1", 0755);
 	assertMakeFile("in/d1/foo", 0644, "foo");
 	assertMakeFile("in/d1/bar", 0644, "bar");
 	if (canSymlink()) {
 		assertMakeFile("in/d1/realfile", 0644, "realfile");
 		assertMakeSymlink("in/d1/symlink", "realfile");
 	}
 	assertMakeFile("in/d1/hardlink1", 0644, "hardlinkedfile");
 	assertMakeHardlink("in/d1/hardlink2", "in/d1/hardlink1");

 	/* Does tar support -s option ? */
 	systemf("%s -cf - -s /foo/bar/ in/d1/foo > NUL 2> check.err",
 	    testprog);
 	assertEqualInt(0, stat("check.err", &st));
 	if (st.st_size != 0) {
 		skipping("%s does not support -s option on this platform",
 			testprog);
 		return;
 	}

 	/*
 	 * Test 1: Filename substitution when creating archives.
 	 */
 	assertMakeDir("test1", 0755);
 	systemf("%s -cf test1_1.tar -s /foo/bar/ in/d1/foo", testprog);
 	systemf("%s -xf test1_1.tar -C test1", testprog);
 	assertFileContents("foo", 3, "test1/in/d1/bar");
 	systemf("%s -cf test1_2.tar -s /d1/d2/ in/d1/foo", testprog);
 	systemf("%s -xf test1_2.tar -C test1", testprog);
 	assertFileContents("foo", 3, "test1/in/d2/foo");

 	/*
 	 * Test 2: Basic substitution when extracting archive.
 	 */
 	assertMakeDir("test2", 0755);
 	systemf("%s -cf test2.tar in/d1/foo", testprog);
 	systemf("%s -xf test2.tar -s /foo/bar/ -C test2", testprog);
 	assertFileContents("foo", 3, "test2/in/d1/bar");

 	/*
 	 * Test 3: Files with empty names shouldn't be archived.
 	 */
 	systemf("%s -cf test3.tar -s ,in/d1/foo,, in/d1/foo", testprog);
 	systemf("%s -tvf test3.tar > in.lst", testprog);
 	assertEmptyFile("in.lst");

 	/*
 	 * Test 4: Multiple substitutions when extracting archive.
 	 */
 	assertMakeDir("test4", 0755);
 	systemf("%s -cf test4.tar in/d1/foo in/d1/bar",
 	    testprog, testprog);
 	systemf("%s -xf test4.tar -s /foo/bar/ -s }bar}baz} -C test4",
 	    testprog, testprog);
 	assertFileContents("foo", 3, "test4/in/d1/bar");
 	assertFileContents("bar", 3, "test4/in/d1/baz");

 	/*
 	 * Test 5: Name-switching substitutions when extracting archive.
 	 */
 	assertMakeDir("test5", 0755);
 	systemf("%s -cf test5.tar in/d1/foo in/d1/bar",
 	    testprog, testprog);
 	systemf("%s -xf test5.tar -s /foo/bar/ -s }bar}foo} -C test5",
 	    testprog, testprog);
 	assertFileContents("foo", 3, "test5/in/d1/bar");
 	assertFileContents("bar", 3, "test5/in/d1/foo");

 	/*
 	 * Test 6: symlinks get renamed by default
 	 */
 	if (canSymlink()) {
 		/* At extraction time. */
 		assertMakeDir("test6a", 0755);
 		systemf("%s -cf - in/d1 | %s -xf - -s /d1/d2/ -C test6a",
 		    testprog, testprog);
 		assertFileContents("realfile", 8, "test6a/in/d2/realfile");
 		assertFileContents("realfile", 8, "test6a/in/d2/symlink");
 		assertIsSymlink("test6a/in/d2/symlink", "realfile");
 		/* At creation time. */
 		assertMakeDir("test6b", 0755);
 		systemf("%s -cf - -s /d1/d2/ in/d1 | %s -xf - -C test6b",
 		    testprog, testprog);
 		assertFileContents("realfile", 8, "test6b/in/d2/realfile");
 		assertFileContents("realfile", 8, "test6b/in/d2/symlink");
 		assertIsSymlink("test6b/in/d2/symlink", "realfile");
 	}

 	/*
 	 * Test 7: selective renaming of symlink target
 	 */
 	if (canSymlink()) {
 		/* At extraction. */
 		assertMakeDir("test7a", 0755);
 		systemf("%s -cf - in/d1 | %s -xf - -s /realfile/realfile-renamed/ -C test7a",
 		    testprog, testprog);
 		assertFileContents("realfile", 8, "test7a/in/d1/realfile-renamed");
 		assertFileContents("realfile", 8, "test7a/in/d1/symlink");
 		assertIsSymlink("test7a/in/d1/symlink", "realfile-renamed");
 		/* At creation. */
 		assertMakeDir("test7b", 0755);
 		systemf("%s -cf - -s /realfile/realfile-renamed/ in/d1 | %s -xf - -C test7b",
 		    testprog, testprog);
 		assertFileContents("realfile", 8, "test7b/in/d1/realfile-renamed");
 		assertFileContents("realfile", 8, "test7b/in/d1/symlink");
 		assertIsSymlink("test7b/in/d1/symlink", "realfile-renamed");
 	}

 	/*
 	 * Test 8: hardlinks get renamed by default
 	 */
 	/* At extraction time. */
 	assertMakeDir("test8a", 0755);
 	systemf("%s -cf test8a.tar in/d1", testprog);
 	systemf("%s -xf test8a.tar -s /d1/d2/ -C test8a", testprog);
 	assertIsHardlink("test8a/in/d2/hardlink1", "test8a/in/d2/hardlink2");
 	/* At creation time. */
 	assertMakeDir("test8b", 0755);
 	systemf("%s -cf test8b.tar -s /d1/d2/ in/d1", testprog);
 	systemf("%s -xf test8b.tar -C test8b", testprog);
 	assertIsHardlink("test8b/in/d2/hardlink1", "test8b/in/d2/hardlink2");

 	/*
 	 * Test 9: selective renaming of hardlink target
 	 */
 	/* At extraction. (assuming hardlink2 is the hardlink entry) */
 	assertMakeDir("test9a", 0755);
 	systemf("%s -cf test9a.tar in/d1", testprog);
 	systemf("%s -xf test9a.tar -s /hardlink1/hardlink1-renamed/ -C test9a",
 	    testprog);
 	assertIsHardlink("test9a/in/d1/hardlink1-renamed", "test9a/in/d1/hardlink2");
 	/* At extraction. (assuming hardlink1 is the hardlink entry) */
 	assertMakeDir("test9b", 0755);
 	systemf("%s -cf test9b.tar in/d1", testprog);
 	systemf("%s -xf test9b.tar -s /hardlink2/hardlink2-renamed/ -C test9b",
 	    testprog);
 	assertIsHardlink("test9b/in/d1/hardlink1", "test9b/in/d1/hardlink2-renamed");
 	/* At creation. (assuming hardlink2 is the hardlink entry) */
 	assertMakeDir("test9c", 0755);
 	systemf("%s -cf test9c.tar -s /hardlink1/hardlink1-renamed/ in/d1",
 	    testprog);
 	systemf("%s -xf test9c.tar -C test9c", testprog);
 	assertIsHardlink("test9c/in/d1/hardlink1-renamed", "test9c/in/d1/hardlink2");
 	/* At creation. (assuming hardlink1 is the hardlink entry) */
 	assertMakeDir("test9d", 0755);
 	systemf("%s -cf test9d.tar -s /hardlink2/hardlink2-renamed/ in/d1",
 	    testprog);
 	systemf("%s -xf test9d.tar -C test9d", testprog);
 	assertIsHardlink("test9d/in/d1/hardlink1", "test9d/in/d1/hardlink2-renamed");

 	/*
 	 * Test 10: renaming symlink target without repointing symlink
 	 */
 	if (canSymlink()) {
 		/* At extraction. */
 		assertMakeDir("test10a", 0755);
 		systemf("%s -cf - in/d1 | %s -xf - -s /realfile/foo/S -s /foo/realfile/ -C test10a",
 		    testprog, testprog);
 		assertFileContents("realfile", 8, "test10a/in/d1/foo");
 		assertFileContents("foo", 3, "test10a/in/d1/realfile");
 		assertFileContents("foo", 3, "test10a/in/d1/symlink");
 		assertIsSymlink("test10a/in/d1/symlink", "realfile");
 		/* At creation. */
 		assertMakeDir("test10b", 0755);
 		systemf("%s -cf - -s /realfile/foo/S -s /foo/realfile/ in/d1 | %s -xf - -C test10b",
 		    testprog, testprog);
 		assertFileContents("realfile", 8, "test10b/in/d1/foo");
 		assertFileContents("foo", 3, "test10b/in/d1/realfile");
 		assertFileContents("foo", 3, "test10b/in/d1/symlink");
 		assertIsSymlink("test10b/in/d1/symlink", "realfile");
 	}

 	/*
 	 * Test 11: repointing symlink without renaming file
 	 */
 	if (canSymlink()) {
 		/* At extraction. */
 		assertMakeDir("test11a", 0755);
 		systemf("%s -cf - in/d1 | %s -xf - -s /realfile/foo/sR -C test11a",
 		    testprog, testprog);
 		assertFileContents("foo", 3, "test11a/in/d1/foo");
 		assertFileContents("realfile", 8, "test11a/in/d1/realfile");
 		assertFileContents("foo", 3, "test11a/in/d1/symlink");
 		assertIsSymlink("test11a/in/d1/symlink", "foo");
 		/* At creation. */
 		assertMakeDir("test11b", 0755);
 		systemf("%s -cf - -s /realfile/foo/R in/d1 | %s -xf - -C test11b",
 		    testprog, testprog);
 		assertFileContents("foo", 3, "test11b/in/d1/foo");
 		assertFileContents("realfile", 8, "test11b/in/d1/realfile");
 		assertFileContents("foo", 3, "test11b/in/d1/symlink");
 		assertIsSymlink("test11b/in/d1/symlink", "foo");
 	}

 	/*
 	 * Test 12: renaming hardlink target without changing hardlink.
 	 * (Requires a pre-built archive, since we otherwise can't know
 	 * which element will be stored as the hardlink.)
 	 */
 	extract_reference_file("test_option_s.tar.Z");
 	assertMakeDir("test12a", 0755);
 	systemf("%s -xf test_option_s.tar.Z -s /hardlink1/foo/H -s /foo/hardlink1/ %s -C test12a",
 	    testprog, canSymlink()?"":"--exclude in/d1/symlink");
 	assertFileContents("foo", 3, "test12a/in/d1/hardlink1");
 	assertFileContents("hardlinkedfile", 14, "test12a/in/d1/foo");
 	assertFileContents("foo", 3, "test12a/in/d1/hardlink2");
 	assertIsHardlink("test12a/in/d1/hardlink1", "test12a/in/d1/hardlink2");
 	/* TODO: Expand this test to verify creation as well.
 	 * Since either hardlink1 or hardlink2 might get stored as a hardlink,
 	 * this will either requiring testing both cases and accepting either
 	 * pass, or some very creative renames that can be tested regardless.
 	 */

 	/*
 	 * Test 13: repoint hardlink without changing files
 	 * (Requires a pre-built archive, since we otherwise can't know
 	 * which element will be stored as the hardlink.)
 	 */
 	extract_reference_file("test_option_s.tar.Z");
 	assertMakeDir("test13a", 0755);
 	systemf("%s -xf test_option_s.tar.Z -s /hardlink1/foo/Rh -s /foo/hardlink1/Rh %s -C test13a",
 	    testprog, canSymlink()?"":"--exclude in/d1/symlink");
 	assertFileContents("foo", 3, "test13a/in/d1/foo");
 	assertFileContents("hardlinkedfile", 14, "test13a/in/d1/hardlink1");
 	assertFileContents("foo", 3, "test13a/in/d1/hardlink2");
 	assertIsHardlink("test13a/in/d1/foo", "test13a/in/d1/hardlink2");
 	/* TODO: See above; expand this test to verify renames at creation. */
 }
	/*-
	* Copyright (c) 2003-2008 Tim Kientzle
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/
	#include "test.h"
	__FBSDID("$FreeBSD: src/usr.bin/tar/test/test_option_T.c,v 1.3 2008/08/15 06:12:02 kientzle Exp $");

	DEFINE_TEST(test_option_s)
	{
	struct stat st;

	/* Create a sample file hierarchy. */
	assertMakeDir("in", 0755);
	assertMakeDir("in/d1", 0755);
	assertMakeFile("in/d1/foo", 0644, "foo");
	assertMakeFile("in/d1/bar", 0644, "bar");
	if (canSymlink()) {
	assertMakeFile("in/d1/realfile", 0644, "realfile");
	assertMakeSymlink("in/d1/symlink", "realfile");
	}
	assertMakeFile("in/d1/hardlink1", 0644, "hardlinkedfile");
	assertMakeHardlink("in/d1/hardlink2", "in/d1/hardlink1");

	/* Does tar support -s option ? */
	systemf("%s -cf - -s /foo/bar/ in/d1/foo > NUL 2> check.err",
	testprog);
	assertEqualInt(0, stat("check.err", &st));
	if (st.st_size != 0) {
	skipping("%s does not support -s option on this platform",
	testprog);
	return;
	}

	/*
	* Test 1: Filename substitution when creating archives.
	*/
	assertMakeDir("test1", 0755);
	systemf("%s -cf test1_1.tar -s /foo/bar/ in/d1/foo", testprog);
	systemf("%s -xf test1_1.tar -C test1", testprog);
	assertFileContents("foo", 3, "test1/in/d1/bar");
	systemf("%s -cf test1_2.tar -s /d1/d2/ in/d1/foo", testprog);
	systemf("%s -xf test1_2.tar -C test1", testprog);
	assertFileContents("foo", 3, "test1/in/d2/foo");

	/*
	* Test 2: Basic substitution when extracting archive.
	*/
	assertMakeDir("test2", 0755);
	systemf("%s -cf test2.tar in/d1/foo", testprog);
	systemf("%s -xf test2.tar -s /foo/bar/ -C test2", testprog);
	assertFileContents("foo", 3, "test2/in/d1/bar");

	/*
	* Test 3: Files with empty names shouldn't be archived.
	*/
	systemf("%s -cf test3.tar -s ,in/d1/foo,, in/d1/foo", testprog);
	systemf("%s -tvf test3.tar > in.lst", testprog);
	assertEmptyFile("in.lst");

	/*
	* Test 4: Multiple substitutions when extracting archive.
	*/
	assertMakeDir("test4", 0755);
	systemf("%s -cf test4.tar in/d1/foo in/d1/bar",
	testprog, testprog);
	systemf("%s -xf test4.tar -s /foo/bar/ -s }bar}baz} -C test4",
	testprog, testprog);
	assertFileContents("foo", 3, "test4/in/d1/bar");
	assertFileContents("bar", 3, "test4/in/d1/baz");

	/*
	* Test 5: Name-switching substitutions when extracting archive.
	*/
	assertMakeDir("test5", 0755);
	systemf("%s -cf test5.tar in/d1/foo in/d1/bar",
	testprog, testprog);
	systemf("%s -xf test5.tar -s /foo/bar/ -s }bar}foo} -C test5",
	testprog, testprog);
	assertFileContents("foo", 3, "test5/in/d1/bar");
	assertFileContents("bar", 3, "test5/in/d1/foo");

	/*
	* Test 6: symlinks get renamed by default
	*/
	if (canSymlink()) {
	/* At extraction time. */
	assertMakeDir("test6a", 0755);
	systemf("%s -cf - in/d1 \| %s -xf - -s /d1/d2/ -C test6a",
	testprog, testprog);
	assertFileContents("realfile", 8, "test6a/in/d2/realfile");
	assertFileContents("realfile", 8, "test6a/in/d2/symlink");
	assertIsSymlink("test6a/in/d2/symlink", "realfile");
	/* At creation time. */
	assertMakeDir("test6b", 0755);
	systemf("%s -cf - -s /d1/d2/ in/d1 \| %s -xf - -C test6b",
	testprog, testprog);
	assertFileContents("realfile", 8, "test6b/in/d2/realfile");
	assertFileContents("realfile", 8, "test6b/in/d2/symlink");
	assertIsSymlink("test6b/in/d2/symlink", "realfile");
	}

	/*
	* Test 7: selective renaming of symlink target
	*/
	if (canSymlink()) {
	/* At extraction. */
	assertMakeDir("test7a", 0755);
	systemf("%s -cf - in/d1 \| %s -xf - -s /realfile/realfile-renamed/ -C test7a",
	testprog, testprog);
	assertFileContents("realfile", 8, "test7a/in/d1/realfile-renamed");
	assertFileContents("realfile", 8, "test7a/in/d1/symlink");
	assertIsSymlink("test7a/in/d1/symlink", "realfile-renamed");
	/* At creation. */
	assertMakeDir("test7b", 0755);
	systemf("%s -cf - -s /realfile/realfile-renamed/ in/d1 \| %s -xf - -C test7b",
	testprog, testprog);
	assertFileContents("realfile", 8, "test7b/in/d1/realfile-renamed");
	assertFileContents("realfile", 8, "test7b/in/d1/symlink");
	assertIsSymlink("test7b/in/d1/symlink", "realfile-renamed");
	}

	/*
	* Test 8: hardlinks get renamed by default
	*/
	/* At extraction time. */
	assertMakeDir("test8a", 0755);
	systemf("%s -cf test8a.tar in/d1", testprog);
	systemf("%s -xf test8a.tar -s /d1/d2/ -C test8a", testprog);
	assertIsHardlink("test8a/in/d2/hardlink1", "test8a/in/d2/hardlink2");
	/* At creation time. */
	assertMakeDir("test8b", 0755);
	systemf("%s -cf test8b.tar -s /d1/d2/ in/d1", testprog);
	systemf("%s -xf test8b.tar -C test8b", testprog);
	assertIsHardlink("test8b/in/d2/hardlink1", "test8b/in/d2/hardlink2");

	/*
	* Test 9: selective renaming of hardlink target
	*/
	/* At extraction. (assuming hardlink2 is the hardlink entry) */
	assertMakeDir("test9a", 0755);
	systemf("%s -cf test9a.tar in/d1", testprog);
	systemf("%s -xf test9a.tar -s /hardlink1/hardlink1-renamed/ -C test9a",
	testprog);
	assertIsHardlink("test9a/in/d1/hardlink1-renamed", "test9a/in/d1/hardlink2");
	/* At extraction. (assuming hardlink1 is the hardlink entry) */
	assertMakeDir("test9b", 0755);
	systemf("%s -cf test9b.tar in/d1", testprog);
	systemf("%s -xf test9b.tar -s /hardlink2/hardlink2-renamed/ -C test9b",
	testprog);
	assertIsHardlink("test9b/in/d1/hardlink1", "test9b/in/d1/hardlink2-renamed");
	/* At creation. (assuming hardlink2 is the hardlink entry) */
	assertMakeDir("test9c", 0755);
	systemf("%s -cf test9c.tar -s /hardlink1/hardlink1-renamed/ in/d1",
	testprog);
	systemf("%s -xf test9c.tar -C test9c", testprog);
	assertIsHardlink("test9c/in/d1/hardlink1-renamed", "test9c/in/d1/hardlink2");
	/* At creation. (assuming hardlink1 is the hardlink entry) */
	assertMakeDir("test9d", 0755);
	systemf("%s -cf test9d.tar -s /hardlink2/hardlink2-renamed/ in/d1",
	testprog);
	systemf("%s -xf test9d.tar -C test9d", testprog);
	assertIsHardlink("test9d/in/d1/hardlink1", "test9d/in/d1/hardlink2-renamed");

	/*
	* Test 10: renaming symlink target without repointing symlink
	*/
	if (canSymlink()) {
	/* At extraction. */
	assertMakeDir("test10a", 0755);
	systemf("%s -cf - in/d1 \| %s -xf - -s /realfile/foo/S -s /foo/realfile/ -C test10a",
	testprog, testprog);
	assertFileContents("realfile", 8, "test10a/in/d1/foo");
	assertFileContents("foo", 3, "test10a/in/d1/realfile");
	assertFileContents("foo", 3, "test10a/in/d1/symlink");
	assertIsSymlink("test10a/in/d1/symlink", "realfile");
	/* At creation. */
	assertMakeDir("test10b", 0755);
	systemf("%s -cf - -s /realfile/foo/S -s /foo/realfile/ in/d1 \| %s -xf - -C test10b",
	testprog, testprog);
	assertFileContents("realfile", 8, "test10b/in/d1/foo");
	assertFileContents("foo", 3, "test10b/in/d1/realfile");
	assertFileContents("foo", 3, "test10b/in/d1/symlink");
	assertIsSymlink("test10b/in/d1/symlink", "realfile");
	}

	/*
	* Test 11: repointing symlink without renaming file
	*/
	if (canSymlink()) {
	/* At extraction. */
	assertMakeDir("test11a", 0755);
	systemf("%s -cf - in/d1 \| %s -xf - -s /realfile/foo/sR -C test11a",
	testprog, testprog);
	assertFileContents("foo", 3, "test11a/in/d1/foo");
	assertFileContents("realfile", 8, "test11a/in/d1/realfile");
	assertFileContents("foo", 3, "test11a/in/d1/symlink");
	assertIsSymlink("test11a/in/d1/symlink", "foo");
	/* At creation. */
	assertMakeDir("test11b", 0755);
	systemf("%s -cf - -s /realfile/foo/R in/d1 \| %s -xf - -C test11b",
	testprog, testprog);
	assertFileContents("foo", 3, "test11b/in/d1/foo");
	assertFileContents("realfile", 8, "test11b/in/d1/realfile");
	assertFileContents("foo", 3, "test11b/in/d1/symlink");
	assertIsSymlink("test11b/in/d1/symlink", "foo");
	}

	/*
	* Test 12: renaming hardlink target without changing hardlink.
	* (Requires a pre-built archive, since we otherwise can't know
	* which element will be stored as the hardlink.)
	*/
	extract_reference_file("test_option_s.tar.Z");
	assertMakeDir("test12a", 0755);
	systemf("%s -xf test_option_s.tar.Z -s /hardlink1/foo/H -s /foo/hardlink1/ %s -C test12a",
	testprog, canSymlink()?"":"--exclude in/d1/symlink");
	assertFileContents("foo", 3, "test12a/in/d1/hardlink1");
	assertFileContents("hardlinkedfile", 14, "test12a/in/d1/foo");
	assertFileContents("foo", 3, "test12a/in/d1/hardlink2");
	assertIsHardlink("test12a/in/d1/hardlink1", "test12a/in/d1/hardlink2");
	/* TODO: Expand this test to verify creation as well.
	* Since either hardlink1 or hardlink2 might get stored as a hardlink,
	* this will either requiring testing both cases and accepting either
	* pass, or some very creative renames that can be tested regardless.
	*/

	/*
	* Test 13: repoint hardlink without changing files
	* (Requires a pre-built archive, since we otherwise can't know
	* which element will be stored as the hardlink.)
	*/
	extract_reference_file("test_option_s.tar.Z");
	assertMakeDir("test13a", 0755);
	systemf("%s -xf test_option_s.tar.Z -s /hardlink1/foo/Rh -s /foo/hardlink1/Rh %s -C test13a",
	testprog, canSymlink()?"":"--exclude in/d1/symlink");
	assertFileContents("foo", 3, "test13a/in/d1/foo");
	assertFileContents("hardlinkedfile", 14, "test13a/in/d1/hardlink1");
	assertFileContents("foo", 3, "test13a/in/d1/hardlink2");
	assertIsHardlink("test13a/in/d1/foo", "test13a/in/d1/hardlink2");
	/* TODO: See above; expand this test to verify renames at creation. */
	}