/*-

 * Copyright (c) 2007-2010 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

 *    in this position and unchanged.

 * 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("$FreeBSD$");

/*

 * Check that we generate an error message when reading a truncated

 * gzip, bzip2, compress, xz, lzma, or lzip file.

 */

static void

test_truncation(const char *compression,

    int (*set_compression)(struct archive *), int can_prog)

{

	struct archive_entry *ae;

	struct archive* a;

	char path[16];

	char *buff, *data;

	size_t buffsize, datasize, used1;

	int i, j, r, use_prog;

	buffsize = 2000000;

	assert(NULL != (buff = (char *)malloc(buffsize)));

	if (buff == NULL)

		return;

	datasize = 10000;

	assert(NULL != (data = (char *)malloc(datasize)));

	if (data == NULL) {

		free(buff);

		return;

	}

	memset(data, 0, datasize);

	/*

	 * Write a bunch of files with semi-random data.

	 */

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

	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_ustar(a));

	assertEqualIntA(a, ARCHIVE_OK,

	    archive_write_add_filter_compress(a));

	r = (*set_compression)(a);

	if (r != ARCHIVE_OK && !can_prog) {

		skipping("%s writing not supported on this platform",

		    compression);

		assertEqualInt(ARCHIVE_OK, archive_write_free(a));

		free(buff);

		free(data);

		return;

	}

	use_prog = (r == ARCHIVE_WARN && can_prog);

	assertEqualIntA(a, ARCHIVE_OK,

	    archive_write_set_bytes_per_block(a, 10));

	assertEqualIntA(a, ARCHIVE_OK,

	    archive_write_open_memory(a, buff, buffsize, &used1));

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

	archive_entry_set_filetype(ae, AE_IFREG);

	archive_entry_set_size(ae, datasize);

	for (i = 0; i < 100; i++) {

		sprintf(path, "%s%d", compression, i);

		archive_entry_copy_pathname(ae, path);

		failure(path);

		if (!assertEqualIntA(a, ARCHIVE_OK,

		    archive_write_header(a, ae))) {

			archive_write_free(a);

			free(data);

			free(buff);

			return;

		}

		for (j = 0; j < (int)datasize; ++j) {

			data[j] = (char)(rand() % 256);

		}

		failure(path);

		if (!assertEqualIntA(a, datasize,

		    archive_write_data(a, data, datasize))) {

			archive_write_free(a);

			free(data);

			free(buff);

			return;

		}

	}

	archive_entry_free(ae);

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

	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

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

	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));

	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));

	assertEqualIntA(a, ARCHIVE_OK,

	    archive_read_open_memory(a, buff, used1 - used1/64));

	for (i = 0; i < 100; i++) {

		if (ARCHIVE_OK != archive_read_next_header(a, &ae)) {

			failure("Should have non-NULL error message for %s",

			    compression);

			assert(NULL != archive_error_string(a));

			break;

		}

		sprintf(path, "%s%d", compression, i);

		assertEqualString(path, archive_entry_pathname(ae));

		if (datasize != (size_t)archive_read_data(a, data, datasize)) {

			failure("Should have non-NULL error message for %s",

			    compression);

			assert(NULL != archive_error_string(a));

			break;

		}

	}

	assertEqualIntA(a, (use_prog)?ARCHIVE_WARN:ARCHIVE_OK,

	    archive_read_close(a));

	assertEqualInt(ARCHIVE_OK, archive_read_free(a));

	free(data);

	free(buff);

}

DEFINE_TEST(test_read_truncated_filter_bzip2)

{

	test_truncation("bzip2", archive_write_add_filter_bzip2, canBzip2());

}

DEFINE_TEST(test_read_truncated_filter_compress)

{

	test_truncation("compress", archive_write_add_filter_compress, 0);

}

DEFINE_TEST(test_read_truncated_filter_gzip)

{

	test_truncation("gzip", archive_write_add_filter_gzip, canGzip());

}

DEFINE_TEST(test_read_truncated_filter_lzip)

{

	test_truncation("lzip", archive_write_add_filter_lzip, 0);

}

DEFINE_TEST(test_read_truncated_filter_lzma)

{

	test_truncation("lzma", archive_write_add_filter_lzma, 0);

}

DEFINE_TEST(test_read_truncated_filter_lzop)

{

	test_truncation("lzop", archive_write_add_filter_lzop, canLzop());

}

DEFINE_TEST(test_read_truncated_filter_xz)

{

	test_truncation("xz", archive_write_add_filter_xz, 0);

}