/*-

 * Copyright (c) 2003-2007 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_symlink_dir.c,v 1.1 2008/09/14 02:16:04 kientzle Exp $");

/*

 * tar -x -P should follow existing symlinks for dirs, but not other

 * content.  Plain tar -x should remove symlinks when they're in the

 * way of a dir extraction.

 */

DEFINE_TEST(test_symlink_dir)

{

	assertUmask(0);

	assertMakeDir("source", 0755);

	assertMakeFile("source/file", 0755, "a");

	assertMakeFile("source/file2", 0755, "ab");

	assertMakeDir("source/dir", 0755);

	assertMakeDir("source/dir/d", 0755);

	assertMakeFile("source/dir/f", 0755, "abc");

	assertMakeDir("source/dir2", 0755);

	assertMakeDir("source/dir2/d2", 0755);

	assertMakeFile("source/dir2/f2", 0755, "abcd");

	assertMakeDir("source/dir3", 0755);

	assertMakeDir("source/dir3/d3", 0755);

	assertMakeFile("source/dir3/f3", 0755, "abcde");

	assertMakeDir("source/dir4", 0755);

	assertMakeFile("source/dir4/file3", 0755, "abcdef");

	assertMakeHardlink("source/dir4/file4", "source/dir4/file3");

	assertEqualInt(0,

	    systemf("%s -cf test.tar -C source dir dir2 dir3 file file2",

		testprog));

	/* Second archive with hardlinks */

	assertEqualInt(0,

	    systemf("%s -cf test2.tar -C source dir4", testprog));

	/*

	 * Extract with -x and without -P.

	 */

	assertMakeDir("dest1", 0755);

	/* "dir" is a symlink to an existing "dest1/real_dir" */

	assertMakeDir("dest1/real_dir", 0755);

	if (canSymlink()) {

		assertMakeSymlink("dest1/dir", "real_dir");

		/* "dir2" is a symlink to a non-existing "real_dir2" */

		assertMakeSymlink("dest1/dir2", "real_dir2");

	} else {

		skipping("Symlinks are not supported on this platform");

	}

	/* "dir3" is a symlink to an existing "non_dir3" */

	assertMakeFile("dest1/non_dir3", 0755, "abcdef");

	if (canSymlink())

		assertMakeSymlink("dest1/dir3", "non_dir3");

	/* "file" is a symlink to existing "real_file" */

	assertMakeFile("dest1/real_file", 0755, "abcdefg");

	if (canSymlink()) {

		assertMakeSymlink("dest1/file", "real_file");

		/* "file2" is a symlink to non-existing "real_file2" */

		assertMakeSymlink("dest1/file2", "real_file2");

	}

	assertEqualInt(0, systemf("%s -xf test.tar -C dest1", testprog));

	/* dest1/dir symlink should be replaced */

	failure("symlink to dir was followed when it shouldn't be");

	assertIsDir("dest1/dir", -1);

	/* dest1/dir2 symlink should be replaced */

	failure("Broken symlink wasn't replaced with dir");

	assertIsDir("dest1/dir2", -1);

	/* dest1/dir3 symlink should be replaced */

	failure("Symlink to non-dir wasn't replaced with dir");

	assertIsDir("dest1/dir3", -1);

	/* dest1/file symlink should be replaced */

	failure("Symlink to existing file should be replaced");

	assertIsReg("dest1/file", -1);

	/* dest1/file2 symlink should be replaced */

	failure("Symlink to non-existing file should be replaced");

	assertIsReg("dest1/file2", -1);

	/*

	 * Extract with both -x and -P

	 */

	assertMakeDir("dest2", 0755);

	/* "dir" is a symlink to existing "real_dir" */

	assertMakeDir("dest2/real_dir", 0755);

	if (canSymlink())

		assertMakeSymlink("dest2/dir", "real_dir");

	/* "dir2" is a symlink to a non-existing "real_dir2" */

	if (canSymlink())

		assertMakeSymlink("dest2/dir2", "real_dir2");

	/* "dir3" is a symlink to an existing "non_dir3" */

	assertMakeFile("dest2/non_dir3", 0755, "abcdefgh");

	if (canSymlink())

		assertMakeSymlink("dest2/dir3", "non_dir3");

	/* "file" is a symlink to existing "real_file" */

	assertMakeFile("dest2/real_file", 0755, "abcdefghi");

	if (canSymlink())

		assertMakeSymlink("dest2/file", "real_file");

	/* "file2" is a symlink to non-existing "real_file2" */

	if (canSymlink())

		assertMakeSymlink("dest2/file2", "real_file2");

	assertEqualInt(0, systemf("%s -xPf test.tar -C dest2", testprog));

	/* "dir4" is a symlink to existing "real_dir" */

	if (canSymlink())

		assertMakeSymlink("dest2/dir4", "real_dir");

	assertEqualInt(0, systemf("%s -xPf test2.tar -C dest2", testprog));

	/* dest2/dir and dest2/dir4 symlinks should be followed */

	if (canSymlink()) {

		assertIsSymlink("dest2/dir", "real_dir");

		assertIsSymlink("dest2/dir4", "real_dir");

		assertIsDir("dest2/real_dir", -1);

	}

	/* Contents of 'dir' should be restored */

	assertIsDir("dest2/dir/d", -1);

	assertIsReg("dest2/dir/f", -1);

	assertFileSize("dest2/dir/f", 3);

	/* dest2/dir2 symlink should be removed */

	failure("Broken symlink wasn't replaced with dir");

	assertIsDir("dest2/dir2", -1);

	/* dest2/dir3 symlink should be removed */

	failure("Symlink to non-dir wasn't replaced with dir");

	assertIsDir("dest2/dir3", -1);

	/* dest2/file symlink should be removed;

	 * even -P shouldn't follow symlinks for files */

	failure("Symlink to existing file should be removed");

	assertIsReg("dest2/file", -1);

	/* dest2/file2 symlink should be removed */

	failure("Symlink to non-existing file should be removed");

	assertIsReg("dest2/file2", -1);

	/* dest2/dir4/file3 and dest2/dir4/file4 should be hard links */

	assertIsHardlink("dest2/dir4/file3", "dest2/dir4/file4");

}