libarchive/test/test_write_format_gnutar_filenames.c

/*-
 * Copyright (c) 2016 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("$FreeBSD$");

/*
 * Inspired by Github issue #682, which reported that gnutar filenames
 * of exactly 512 bytes weren't getting written correctly.
 *
 * This writes a filename of every length from 1 to 2000 bytes and
 * reads back to verify it.
 */

static char filename[2048];

DEFINE_TEST(test_write_format_gnutar_filenames)
{
	size_t buffsize = 1000000;
	char *buff;
	struct archive_entry *ae, *template;
	struct archive *a;
	size_t used;
	int i;

	buff = malloc(buffsize); /* million bytes of work area */
	assert(buff != NULL);

	/* Create a template entry. */
	assert((template = archive_entry_new()) != NULL);
	archive_entry_set_atime(template, 2, 20);
	archive_entry_set_birthtime(template, 3, 30);
	archive_entry_set_ctime(template, 4, 40);
	archive_entry_set_mtime(template, 5, 50);
	archive_entry_set_mode(template, S_IFREG | 0755);
	archive_entry_set_size(template, 8);

	for (i = 0; i < 2000; ++i) {
		filename[i] = 'a';
		filename[i + 1] = '\0';
		archive_entry_copy_pathname(template, filename);

		/* Write a one-item gnutar format archive. */
		assert((a = archive_write_new()) != NULL);
		assertA(0 == archive_write_set_format_gnutar(a));
		assertA(0 == archive_write_add_filter_none(a));
		assertA(0 == archive_write_open_memory(a, buff, buffsize, &used));
		assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, template));
		assertEqualIntA(a, 8, archive_write_data(a, "12345678", 9));
		assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
		assertEqualIntA(a, ARCHIVE_OK, archive_write_free(a));


		/* Read back and verify the filename. */
		assert((a = archive_read_new()) != NULL);
		assertEqualIntA(a, 0, archive_read_support_format_all(a));
		assertEqualIntA(a, 0, archive_read_support_filter_all(a));
		assertEqualIntA(a, 0, archive_read_open_memory(a, buff, used));
		
		assertEqualIntA(a, 0, archive_read_next_header(a, &ae));
		assertEqualString(filename, archive_entry_pathname(ae));
		assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
		assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
		assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
	}

	archive_entry_free(template);

	free(buff);
}


DEFINE_TEST(test_write_format_gnutar_linknames)
{
	size_t buffsize = 1000000;
	char *buff;
	struct archive_entry *ae, *template;
	struct archive *a;
	size_t used;
	int i;

#ifdef S_IFLNK
	assertEqualInt(S_IFLNK, AE_IFLNK);
#endif

	buff = malloc(buffsize); /* million bytes of work area */
	assert(buff != NULL);

	/* Create a template entry. */
	assert((template = archive_entry_new()) != NULL);
	archive_entry_set_atime(template, 2, 20);
	archive_entry_set_birthtime(template, 3, 30);
	archive_entry_set_ctime(template, 4, 40);
	archive_entry_set_mtime(template, 5, 50);
	archive_entry_set_mode(template, AE_IFLNK | 0755);
	archive_entry_copy_pathname(template, "link");

	for (i = 0; i < 2000; ++i) {
		filename[i] = 'a';
		filename[i + 1] = '\0';
		archive_entry_copy_symlink(template, filename);

		/* Write a one-item gnutar format archive. */
		assert((a = archive_write_new()) != NULL);
		assertA(0 == archive_write_set_format_gnutar(a));
		assertA(0 == archive_write_add_filter_none(a));
		assertA(0 == archive_write_open_memory(a, buff, buffsize, &used));
		assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, template));
		assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
		assertEqualIntA(a, ARCHIVE_OK, archive_write_free(a));


		/* Read back and verify the filename. */
		assert((a = archive_read_new()) != NULL);
		assertEqualIntA(a, 0, archive_read_support_format_all(a));
		assertEqualIntA(a, 0, archive_read_support_filter_all(a));
		assertEqualIntA(a, 0, archive_read_open_memory(a, buff, used));
		
		assertEqualIntA(a, 0, archive_read_next_header(a, &ae));
		assertEqualString("link", archive_entry_pathname(ae));
		assertEqualString(filename, archive_entry_symlink(ae));
		assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
		assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
		assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
	}

	archive_entry_free(template);

	free(buff);
}