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Diffstat (limited to 'libarchive/libarchive-2.7.1/tar/test/test_strip_components.c')
| -rw-r--r-- | libarchive/libarchive-2.7.1/tar/test/test_strip_components.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libarchive/libarchive-2.7.1/tar/test/test_strip_components.c b/libarchive/libarchive-2.7.1/tar/test/test_strip_components.c new file mode 100644 index 0000000..8b386dd --- /dev/null +++ b/libarchive/libarchive-2.7.1/tar/test/test_strip_components.c @@ -0,0 +1,110 @@ +/*- + * 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_strip_components.c,v 1.2 2008/11/10 05:24:13 kientzle Exp $"); + +static int +touch(const char *fn) +{ + int fd = open(fn, O_RDWR | O_CREAT, 0644); + failure("Couldn't create file '%s', fd=%d, errno=%d (%s)\n", + fn, fd, errno, strerror(errno)); + if (!assert(fd > 0)) + return (0); /* Failure. */ + close(fd); + return (1); /* Success */ +} + +DEFINE_TEST(test_strip_components) +{ + struct stat st; + + assertEqualInt(0, mkdir("d0", 0755)); + assertEqualInt(0, chdir("d0")); + assertEqualInt(0, mkdir("d1", 0755)); + assertEqualInt(0, mkdir("d1/d2", 0755)); + assertEqualInt(0, mkdir("d1/d2/d3", 0755)); + assertEqualInt(1, touch("d1/d2/f1")); + assertEqualInt(0, link("d1/d2/f1", "l1")); + assertEqualInt(0, link("d1/d2/f1", "d1/l2")); + assertEqualInt(0, symlink("d1/d2/f1", "s1")); + assertEqualInt(0, symlink("d2/f1", "d1/s2")); + assertEqualInt(0, chdir("..")); + + assertEqualInt(0, systemf("%s -cf test.tar d0", testprog)); + + assertEqualInt(0, mkdir("target", 0755)); + assertEqualInt(0, systemf("%s -x -C target --strip-components 2 " + "-f test.tar", testprog)); + + failure("d0/ is too short and should not get restored"); + assertEqualInt(-1, lstat("target/d0", &st)); + failure("d0/d1/ is too short and should not get restored"); + assertEqualInt(-1, lstat("target/d1", &st)); + failure("d0/d1/s2 is a symlink to something that won't be extracted"); +#if !defined(_WIN32) || defined(__CYGWIN__) + assertEqualInt(-1, stat("target/s2", &st)); +#else + skipping("symlink with stat()"); +#endif + assertEqualInt(0, lstat("target/s2", &st)); + failure("d0/d1/d2 should be extracted"); + assertEqualInt(0, lstat("target/d2", &st)); + + /* + * This next is a complicated case. d0/l1, d0/d1/l2, and + * d0/d1/d2/f1 are all hardlinks to the same file; d0/l1 can't + * be extracted with --strip-components=2 and the other two + * can. Remember that tar normally stores the first file with + * a body and the other as hardlink entries to the first + * appearance. So the final result depends on the order in + * which these three names get archived. If d0/l1 is first, + * none of the three can be restored. If either of the longer + * names are first, then the two longer ones can both be + * restored. + * + * The tree-walking code used by bsdtar always visits files + * before subdirectories, so bsdtar's behavior is fortunately + * deterministic: d0/l1 will always get stored first and the + * other two will be stored as hardlinks to d0/l1. Since + * d0/l1 can't be extracted, none of these three will be + * extracted. + * + * It may be worth extending this test to force a particular + * archiving order so as to exercise both of the cases described + * above. + * + * Of course, this is all totally different for cpio and newc + * formats because the hardlink management is different. + * TODO: Rename this to test_strip_components_tar and create + * parallel tests for cpio and newc formats. + */ + failure("d0/l1 is too short and should not get restored"); + assertEqualInt(-1, lstat("target/l1", &st)); + failure("d0/d1/l2 is a hardlink to file whose name was too short"); + assertEqualInt(-1, lstat("target/l2", &st)); + failure("d0/d1/d2/f1 is a hardlink to file whose name was too short"); + assertEqualInt(-1, lstat("target/d2/f1", &st)); +} |