| /*- |
| * 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: head/lib/libarchive/test/test_write_disk_hardlink.c 201247 2009-12-30 05:59:21Z kientzle $"); |
| |
| #if defined(_WIN32) && !defined(__CYGWIN__) |
| /* Execution bits, Group members bits and others bits do not work. */ |
| #define UMASK 0177 |
| #define E_MASK (~0177) |
| #else |
| #define UMASK 022 |
| #define E_MASK (~0) |
| #endif |
| |
| /* |
| * Exercise hardlink recreation. |
| * |
| * File permissions are chosen so that the authoritative entry |
| * has the correct permission and the non-authoritative versions |
| * are just writeable files. |
| */ |
| DEFINE_TEST(test_write_disk_hardlink) |
| { |
| #if defined(__HAIKU__) |
| skipping("archive_write_disk_hardlink; hardlinks are not supported on bfs"); |
| #else |
| static const char data[]="abcdefghijklmnopqrstuvwxyz"; |
| struct archive *ad; |
| struct archive_entry *ae; |
| int r; |
| |
| /* Force the umask to something predictable. */ |
| assertUmask(UMASK); |
| |
| /* Write entries to disk. */ |
| assert((ad = archive_write_disk_new()) != NULL); |
| |
| /* |
| * First, use a tar-like approach; a regular file, then |
| * a separate "hardlink" entry. |
| */ |
| |
| /* Regular file. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link1a"); |
| archive_entry_set_mode(ae, S_IFREG | 0755); |
| archive_entry_set_size(ae, sizeof(data)); |
| assertEqualIntA(ad, 0, archive_write_header(ad, ae)); |
| assertEqualInt(sizeof(data), |
| archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| archive_entry_free(ae); |
| |
| /* Link. Size of zero means this doesn't carry data. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link1b"); |
| archive_entry_set_mode(ae, S_IFREG | 0642); |
| archive_entry_set_size(ae, 0); |
| archive_entry_copy_hardlink(ae, "link1a"); |
| assertEqualIntA(ad, 0, r = archive_write_header(ad, ae)); |
| if (r >= ARCHIVE_WARN) { |
| assertEqualInt(ARCHIVE_WARN, |
| archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| } |
| archive_entry_free(ae); |
| |
| /* |
| * Repeat tar approach test, but use unset to mark the |
| * hardlink as having no data. |
| */ |
| |
| /* Regular file. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link2a"); |
| archive_entry_set_mode(ae, S_IFREG | 0755); |
| archive_entry_set_size(ae, sizeof(data)); |
| assertEqualIntA(ad, 0, archive_write_header(ad, ae)); |
| assertEqualInt(sizeof(data), |
| archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| archive_entry_free(ae); |
| |
| /* Link. Unset size means this doesn't carry data. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link2b"); |
| archive_entry_set_mode(ae, S_IFREG | 0642); |
| archive_entry_unset_size(ae); |
| archive_entry_copy_hardlink(ae, "link2a"); |
| assertEqualIntA(ad, 0, r = archive_write_header(ad, ae)); |
| if (r >= ARCHIVE_WARN) { |
| assertEqualInt(ARCHIVE_WARN, |
| archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| } |
| archive_entry_free(ae); |
| |
| /* |
| * Second, try an old-cpio-like approach; a regular file, then |
| * another identical one (which has been marked hardlink). |
| */ |
| |
| /* Regular file. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link3a"); |
| archive_entry_set_mode(ae, S_IFREG | 0600); |
| archive_entry_set_size(ae, sizeof(data)); |
| assertEqualIntA(ad, 0, archive_write_header(ad, ae)); |
| assertEqualInt(sizeof(data), archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| archive_entry_free(ae); |
| |
| /* Link. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link3b"); |
| archive_entry_set_mode(ae, S_IFREG | 0755); |
| archive_entry_set_size(ae, sizeof(data)); |
| archive_entry_copy_hardlink(ae, "link3a"); |
| assertEqualIntA(ad, 0, r = archive_write_header(ad, ae)); |
| if (r > ARCHIVE_WARN) { |
| assertEqualInt(sizeof(data), |
| archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| } |
| archive_entry_free(ae); |
| |
| /* |
| * Finally, try a new-cpio-like approach, where the initial |
| * regular file is empty and the hardlink has the data. |
| */ |
| |
| /* Regular file. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link4a"); |
| archive_entry_set_mode(ae, S_IFREG | 0600); |
| archive_entry_set_size(ae, 0); |
| assertEqualIntA(ad, 0, archive_write_header(ad, ae)); |
| assertEqualInt(ARCHIVE_WARN, archive_write_data(ad, data, 1)); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| archive_entry_free(ae); |
| |
| /* Link. */ |
| assert((ae = archive_entry_new()) != NULL); |
| archive_entry_copy_pathname(ae, "link4b"); |
| archive_entry_set_mode(ae, S_IFREG | 0755); |
| archive_entry_set_size(ae, sizeof(data)); |
| archive_entry_copy_hardlink(ae, "link4a"); |
| assertEqualIntA(ad, 0, r = archive_write_header(ad, ae)); |
| if (r > ARCHIVE_FAILED) { |
| assertEqualInt(sizeof(data), |
| archive_write_data(ad, data, sizeof(data))); |
| assertEqualIntA(ad, 0, archive_write_finish_entry(ad)); |
| } |
| archive_entry_free(ae); |
| assertEqualInt(0, archive_write_free(ad)); |
| |
| /* Test the entries on disk. */ |
| |
| /* Test #1 */ |
| /* If the hardlink was successfully created and the archive |
| * doesn't carry data for it, we consider it to be |
| * non-authoritative for meta data as well. This is consistent |
| * with GNU tar and BSD pax. */ |
| assertIsReg("link1a", 0755 & ~UMASK); |
| assertFileSize("link1a", sizeof(data)); |
| assertFileNLinks("link1a", 2); |
| assertIsHardlink("link1a", "link1b"); |
| |
| /* Test #2: Should produce identical results to test #1 */ |
| /* Note that marking a hardlink with size = 0 is treated the |
| * same as having an unset size. This is partly for backwards |
| * compatibility (we used to not have unset tracking, so |
| * relied on size == 0) and partly to match the model used by |
| * common file formats that store a size of zero for |
| * hardlinks. */ |
| assertIsReg("link2a", 0755 & ~UMASK); |
| assertFileSize("link2a", sizeof(data)); |
| assertFileNLinks("link2a", 2); |
| assertIsHardlink("link2a", "link2b"); |
| |
| /* Test #3 */ |
| assertIsReg("link3a", 0755 & ~UMASK); |
| assertFileSize("link3a", sizeof(data)); |
| assertFileNLinks("link3a", 2); |
| assertIsHardlink("link3a", "link3b"); |
| |
| /* Test #4 */ |
| assertIsReg("link4a", 0755 & ~UMASK); |
| assertFileNLinks("link4a", 2); |
| assertFileSize("link4a", sizeof(data)); |
| assertIsHardlink("link4a", "link4b"); |
| #endif |
| } |