224 lines
8.2 KiB
C
224 lines
8.2 KiB
C
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/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "test.h"
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__FBSDID("$FreeBSD: src/lib/libarchive/test/test_write_disk_hardlink.c,v 1.5 2008/09/05 06:13:11 kientzle Exp $");
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#if defined(_WIN32) && !defined(__CYGWIN__)
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/* Execution bits, Group members bits and others bits do not work. */
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#define UMASK 0177
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#define E_MASK (~0177)
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#else
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#define UMASK 022
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#define E_MASK (~0)
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#endif
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/*
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* Exercise hardlink recreation.
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*
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* File permissions are chosen so that the authoritive entry
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* has the correct permission and the non-authoritive versions
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* are just writeable files.
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*/
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DEFINE_TEST(test_write_disk_hardlink)
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{
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#if ARCHIVE_VERSION_NUMBER < 1009000
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skipping("archive_write_disk_hardlink tests");
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#else
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static const char data[]="abcdefghijklmnopqrstuvwxyz";
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struct archive *ad;
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struct archive_entry *ae;
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int r;
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/* Force the umask to something predictable. */
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assertUmask(UMASK);
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/* Write entries to disk. */
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assert((ad = archive_write_disk_new()) != NULL);
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/*
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* First, use a tar-like approach; a regular file, then
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* a separate "hardlink" entry.
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*/
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/* Regular file. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link1a");
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archive_entry_set_mode(ae, S_IFREG | 0755);
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archive_entry_set_size(ae, sizeof(data));
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assertEqualIntA(ad, 0, archive_write_header(ad, ae));
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assertEqualInt(sizeof(data),
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archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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archive_entry_free(ae);
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/* Link. Size of zero means this doesn't carry data. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link1b");
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archive_entry_set_mode(ae, S_IFREG | 0642);
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archive_entry_set_size(ae, 0);
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archive_entry_copy_hardlink(ae, "link1a");
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assertEqualIntA(ad, 0, r = archive_write_header(ad, ae));
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if (r >= ARCHIVE_WARN) {
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assertEqualInt(ARCHIVE_WARN,
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archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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}
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archive_entry_free(ae);
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/*
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* Repeat tar approach test, but use unset to mark the
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* hardlink as having no data.
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*/
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/* Regular file. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link2a");
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archive_entry_set_mode(ae, S_IFREG | 0755);
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archive_entry_set_size(ae, sizeof(data));
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assertEqualIntA(ad, 0, archive_write_header(ad, ae));
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assertEqualInt(sizeof(data),
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archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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archive_entry_free(ae);
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/* Link. Unset size means this doesn't carry data. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link2b");
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archive_entry_set_mode(ae, S_IFREG | 0642);
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archive_entry_unset_size(ae);
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archive_entry_copy_hardlink(ae, "link2a");
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assertEqualIntA(ad, 0, r = archive_write_header(ad, ae));
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if (r >= ARCHIVE_WARN) {
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assertEqualInt(ARCHIVE_WARN,
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archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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}
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archive_entry_free(ae);
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/*
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* Second, try an old-cpio-like approach; a regular file, then
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* another identical one (which has been marked hardlink).
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*/
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/* Regular file. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link3a");
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archive_entry_set_mode(ae, S_IFREG | 0600);
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archive_entry_set_size(ae, sizeof(data));
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assertEqualIntA(ad, 0, archive_write_header(ad, ae));
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assertEqualInt(sizeof(data), archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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archive_entry_free(ae);
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/* Link. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link3b");
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archive_entry_set_mode(ae, S_IFREG | 0755);
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archive_entry_set_size(ae, sizeof(data));
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archive_entry_copy_hardlink(ae, "link3a");
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assertEqualIntA(ad, 0, r = archive_write_header(ad, ae));
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if (r > ARCHIVE_WARN) {
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assertEqualInt(sizeof(data),
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archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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}
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archive_entry_free(ae);
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/*
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* Finally, try a new-cpio-like approach, where the initial
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* regular file is empty and the hardlink has the data.
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*/
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/* Regular file. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link4a");
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archive_entry_set_mode(ae, S_IFREG | 0600);
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archive_entry_set_size(ae, 0);
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assertEqualIntA(ad, 0, archive_write_header(ad, ae));
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#if ARCHIVE_VERSION_NUMBER < 3000000
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assertEqualInt(ARCHIVE_WARN, archive_write_data(ad, data, 1));
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#else
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assertEqualInt(-1, archive_write_data(ad, data, 1));
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#endif
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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archive_entry_free(ae);
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/* Link. */
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assert((ae = archive_entry_new()) != NULL);
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archive_entry_copy_pathname(ae, "link4b");
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archive_entry_set_mode(ae, S_IFREG | 0755);
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archive_entry_set_size(ae, sizeof(data));
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archive_entry_copy_hardlink(ae, "link4a");
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assertEqualIntA(ad, 0, r = archive_write_header(ad, ae));
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if (r > ARCHIVE_FAILED) {
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assertEqualInt(sizeof(data),
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archive_write_data(ad, data, sizeof(data)));
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assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
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}
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archive_entry_free(ae);
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#if ARCHIVE_VERSION_NUMBER < 2000000
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archive_write_finish(ad);
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#else
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assertEqualInt(0, archive_write_finish(ad));
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#endif
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/* Test the entries on disk. */
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/* Test #1 */
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/* If the hardlink was successfully created and the archive
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* doesn't carry data for it, we consider it to be
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* non-authoritive for meta data as well. This is consistent
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* with GNU tar and BSD pax. */
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assertIsReg("link1a", 0755 & ~UMASK);
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assertFileSize("link1a", sizeof(data));
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assertFileNLinks("link1a", 2);
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assertIsHardlink("link1a", "link1b");
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/* Test #2: Should produce identical results to test #1 */
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/* Note that marking a hardlink with size = 0 is treated the
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* same as having an unset size. This is partly for backwards
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* compatibility (we used to not have unset tracking, so
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* relied on size == 0) and partly to match the model used by
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* common file formats that store a size of zero for
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* hardlinks. */
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assertIsReg("link2a", 0755 & ~UMASK);
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assertFileSize("link2a", sizeof(data));
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assertFileNLinks("link2a", 2);
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assertIsHardlink("link2a", "link2b");
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/* Test #3 */
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assertIsReg("link3a", 0755 & ~UMASK);
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assertFileSize("link3a", sizeof(data));
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assertFileNLinks("link3a", 2);
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assertIsHardlink("link3a", "link3b");
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/* Test #4 */
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assertIsReg("link4a", 0755 & ~UMASK);
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assertFileNLinks("link4a", 2);
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assertFileSize("link4a", sizeof(data));
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assertIsHardlink("link4a", "link4b");
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#endif
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}
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