/*-

 * 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/lib/libarchive/test/test_tar_filenames.c,v 1.10 2008/09/01 05:38:33 kientzle Exp $");

/*

 * Exercise various lengths of filenames in tar archives,

 * especially around the magic sizes where ustar breaks

 * filenames into prefix/suffix.

 */

static void

test_filename(const char *prefix, int dlen, int flen)

{

	char buff[8192];

	char filename[400];

	char dirname[400];

	struct archive_entry *ae;

	struct archive *a;

	size_t used;

	char *p;

	int i;

	p = filename;

	if (prefix) {

		strcpy(filename, prefix);

		p += strlen(p);

	}

	if (dlen > 0) {

		for (i = 0; i < dlen; i++)

			*p++ = 'a';

		*p++ = '/';

	}

	for (i = 0; i < flen; i++)

		*p++ = 'b';

	*p = '\0';

	strcpy(dirname, filename);

	/* Create a new archive in memory. */

	assert((a = archive_write_new()) != NULL);

	assertA(0 == archive_write_set_format_pax_restricted(a));

	assertA(0 == archive_write_add_filter_none(a));

	assertA(0 == archive_write_set_bytes_per_block(a,0));

	assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));

	/*

	 * Write a file to it.

	 */

	assert((ae = archive_entry_new()) != NULL);

	archive_entry_copy_pathname(ae, filename);

	archive_entry_set_mode(ae, S_IFREG | 0755);

	failure("Pathname %d/%d", dlen, flen);

	assertA(0 == archive_write_header(a, ae));

	archive_entry_free(ae);

	/*

	 * Write a dir to it (without trailing '/').

	 */

	assert((ae = archive_entry_new()) != NULL);

	archive_entry_copy_pathname(ae, dirname);

	archive_entry_set_mode(ae, S_IFDIR | 0755);

	failure("Dirname %d/%d", dlen, flen);

	assertA(0 == archive_write_header(a, ae));

	archive_entry_free(ae);

	/* Tar adds a '/' to directory names. */

	strcat(dirname, "/");

	/*

	 * Write a dir to it (with trailing '/').

	 */

	assert((ae = archive_entry_new()) != NULL);

	archive_entry_copy_pathname(ae, dirname);

	archive_entry_set_mode(ae, S_IFDIR | 0755);

	failure("Dirname %d/%d", dlen, flen);

	assertA(0 == archive_write_header(a, ae));

	archive_entry_free(ae);

	/* Close out the archive. */

	assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));

	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/*

	 * Now, read the data back.

	 */

	assert((a = archive_read_new()) != NULL);

	assertA(0 == archive_read_support_format_all(a));

	assertA(0 == archive_read_support_filter_all(a));

	assertA(0 == archive_read_open_memory(a, buff, used));

	/* Read the file and check the filename. */

	assertA(0 == archive_read_next_header(a, &ae);;

	assertEqualString(filename, archive_entry_pathname(ae));

	assertEqualInt((S_IFREG | 0755), archive_entry_mode(ae));

	/*

	 * Read the two dirs and check the names.

	 *

	 * Both dirs should read back with the same name, since

	 * tar should add a trailing '/' to any dir that doesn't

	 * already have one.  We only report the first such failure

	 * here.

	 */

	assertA(0 == archive_read_next_header(a, &ae);;

	assertEqualString(dirname, archive_entry_pathname(ae));

	assert((S_IFDIR | 0755) == archive_entry_mode(ae));

	assertA(0 == archive_read_next_header(a, &ae);;

	assertEqualString(dirname, archive_entry_pathname(ae));

	assert((S_IFDIR | 0755) == archive_entry_mode(ae));

	/* Verify the end of the archive. */

	assert(1 == archive_read_next_header(a, &ae);;

	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));

	assertEqualInt(ARCHIVE_OK, archive_read_free(a));

}

DEFINE_TEST(test_tar_filenames)

{

	int dlen, flen;

	/* Repeat the following for a variety of dir/file lengths. */

	for (dlen = 45; dlen < 55; dlen++) {

		for (flen = 45; flen < 55; flen++) {

			test_filename(NULL, dlen, flen);

			test_filename("/", dlen, flen);

		}

	}

	for (dlen = 0; dlen < 140; dlen += 10) {

		for (flen = 98; flen < 102; flen++) {

			test_filename(NULL, dlen, flen);

			test_filename("/", dlen, flen);

		}

	}

	for (dlen = 140; dlen < 160; dlen++) {

		for (flen = 95; flen < 105; flen++) {

			test_filename(NULL, dlen, flen);

			test_filename("/", dlen, flen);

		}

	}

}