test_symlink_dir.c
/*-
* 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.
*/
static int
mkfile(const char *name, int mode, const char *contents, size_t size)
{
FILE *f = fopen(name, "wb");
size_t written;
(void)mode; /* UNUSED */
if (f == NULL)
return (-1);
written = fwrite(contents, 1, size, f);
fclose(f);
if (size != written)
return (-1);
return (0);
}
DEFINE_TEST(test_symlink_dir)
{
assertUmask(0);
assertMakeDir("source", 0755);
assertEqualInt(0, mkfile("source/file", 0755, "a", 1));
assertEqualInt(0, mkfile("source/file2", 0755, "ab", 2));
assertMakeDir("source/dir", 0755);
assertMakeDir("source/dir/d", 0755);
assertEqualInt(0, mkfile("source/dir/f", 0755, "abc", 3));
assertMakeDir("source/dir2", 0755);
assertMakeDir("source/dir2/d2", 0755);
assertEqualInt(0, mkfile("source/dir2/f2", 0755, "abcd", 4));
assertMakeDir("source/dir3", 0755);
assertMakeDir("source/dir3/d3", 0755);
assertEqualInt(0, mkfile("source/dir3/f3", 0755, "abcde", 5));
assertEqualInt(0,
systemf("%s -cf test.tar -C source dir dir2 dir3 file file2",
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("some symlink checks");
}
/* "dir3" is a symlink to an existing "non_dir3" */
assertEqualInt(0, mkfile("dest1/non_dir3", 0755, "abcdef", 6));
if (canSymlink())
assertMakeSymlink("dest1/dir3", "non_dir3");
/* "file" is a symlink to existing "real_file" */
assertEqualInt(0, mkfile("dest1/real_file", 0755, "abcdefg", 7));
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" */
assertEqualInt(0, mkfile("dest2/non_dir3", 0755, "abcdefgh", 8));
if (canSymlink())
assertMakeSymlink("dest2/dir3", "non_dir3");
/* "file" is a symlink to existing "real_file" */
assertEqualInt(0, mkfile("dest2/real_file", 0755, "abcdefghi", 9));
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));
/* dest2/dir symlink should be followed */
if (canSymlink()) {
assertIsSymlink("dest2/dir", "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);
}
