/*-

 * 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_open_memory.c 189308 2009-03-03 17:02:51Z kientzle $");

/* Try to force archive_write_open_memory.c to write past the end of an array. */

static unsigned char buff[16384];

DEFINE_TEST(test_write_open_memory)

{

	unsigned int i;

	struct archive *a;

	struct archive_entry *ae;

	const char *name="/tmp/test";

	/* Create a simple archive_entry. */

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

	archive_entry_set_pathname(ae, name);

	archive_entry_set_mode(ae, S_IFREG);

	assertEqualString(archive_entry_pathname(ae), name);

	/* Try writing with different buffer sizes. */

	/* Make sure that we get failure on too-small buffers, success on

	 * large enough ones. */

	for (i = 100; i < 1600; i++) {

		size_t used;

		size_t blocksize = 94;

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

		assertEqualIntA(a, ARCHIVE_OK,

		    archive_write_set_format_ustar(a));

		assertEqualIntA(a, ARCHIVE_OK,

		    archive_write_set_bytes_in_last_block(a, 1));

		assertEqualIntA(a, ARCHIVE_OK,

		    archive_write_set_bytes_per_block(a, (int)blocksize));

		buff[i] = 0xAE;

		assertEqualIntA(a, ARCHIVE_OK,

		    archive_write_open_memory(a, buff, i, &used));

		/* If buffer is smaller than a tar header, this should fail. */

		if (i < (511/blocksize)*blocksize)

			assertEqualIntA(a, ARCHIVE_FATAL,

			    archive_write_header(a,ae));

		else

			assertEqualIntA(a, ARCHIVE_OK,

			    archive_write_header(a, ae));

		/* If buffer is smaller than a tar header plus 1024 byte

		 * end-of-archive marker, then this should fail. */

		failure("buffer size=%d\n", (int)i);

		if (i < 1536)

			assertEqualIntA(a, ARCHIVE_FATAL,

			    archive_write_close(a));

		else {

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

			assertEqualInt(used, archive_filter_bytes(a, -1));

			assertEqualInt(archive_filter_bytes(a, -1),

			    archive_filter_bytes(a, 0));

		}

		assertEqualInt(ARCHIVE_OK, archive_write_free(a));

		assertEqualInt(buff[i], 0xAE);

		assert(used <= i);

	}

	archive_entry_free(ae);

}