/*-

 * 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_read_truncated.c,v 1.4 2008/09/01 05:38:33 kientzle Exp $");

static char buff[1000000];

static char buff2[100000];

DEFINE_TEST(test_read_truncated)

{

	struct archive_entry *ae;

	struct archive *a;

	unsigned int i;

	size_t used;

	/* Create a new archive in memory. */

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

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

	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));

	assertEqualIntA(a, ARCHIVE_OK, 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, "file");

	archive_entry_set_mode(ae, S_IFREG | 0755);

	for (i = 0; i < sizeof(buff2); i++)

		buff2[i] = (unsigned char)rand();

	archive_entry_set_size(ae, sizeof(buff2));

	assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae));

	archive_entry_free(ae);

	assertEqualIntA(a, sizeof(buff2), archive_write_data(a, buff2, sizeof(buff2)));

	/* Close out the archive. */

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

	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Now, read back a truncated version of the archive and

	 * verify that we get an appropriate error. */

	for (i = 1; i < used + 100; i += 100) {

		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));

		if (i < 512) {

			assertEqualIntA(a, ARCHIVE_FATAL, archive_read_open_memory(a, buff, i));

			goto wrap_up;

		} else {

			assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, i));

		}

		assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae);;

		if (i < 512 + sizeof(buff2)) {

			assertEqualIntA(a, ARCHIVE_FATAL, archive_read_data(a, buff2, sizeof(buff2)));

			goto wrap_up;

		} else {

			assertEqualIntA(a, sizeof(buff2), archive_read_data(a, buff2, sizeof(buff2)));

		}

		/* Verify the end of the archive. */

		/* Archive must be long enough to capture a 512-byte

		 * block of zeroes after the entry.  (POSIX requires a

		 * second block of zeros to be written but libarchive

		 * does not return an error if it can't consume

		 * it.) */

		if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) {

			assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae);;

		} else {

			assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae);;

		}

	wrap_up:

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

		assertEqualInt(ARCHIVE_OK, archive_read_free(a));

	}

	/* Same as above, except skip the body instead of reading it. */

	for (i = 1; i < used + 100; i += 100) {

		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));

		if (i < 512) {

			assertEqualIntA(a, ARCHIVE_FATAL, archive_read_open_memory(a, buff, i));

			goto wrap_up2;

		} else {

			assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, i));

		}

		assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae);;

		if (i < 512 + 512*((sizeof(buff2)+511)/512)) {

			assertEqualIntA(a, ARCHIVE_FATAL, archive_read_data_skip(a));

			goto wrap_up2;

		} else {

			assertEqualIntA(a, ARCHIVE_OK, archive_read_data_skip(a));

		}

		/* Verify the end of the archive. */

		/* Archive must be long enough to capture a 512-byte

		 * block of zeroes after the entry.  (POSIX requires a

		 * second block of zeros to be written but libarchive

		 * does not return an error if it can't consume

		 * it.) */

		if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) {

			assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae);;

		} else {

			assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae);;

		}

	wrap_up2:

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

		assertEqualInt(ARCHIVE_OK, archive_read_free(a));

	}

}