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/*-
* 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");
#include <locale.h>
/*
* Github Issue 748 reported problems with end-of-entry handling
* with highly-compressible data. This resulted in the end of the
* data being truncated (extracted as zero bytes).
*/
/*
* Extract the specific test archive that was used to diagnose
* Issue 748:
*/
DEFINE_TEST(test_read_format_zip_high_compression)
{
const char *refname = "test_read_format_zip_high_compression.zip";
char *p;
size_t archive_size;
struct archive *a;
struct archive_entry *entry;
const void *pv;
size_t s;
int64_t o;
if (archive_zlib_version() == NULL) {
skipping("Zip compression test requires zlib");
return;
}
extract_reference_file(refname);
p = slurpfile(&archive_size, refname);
assert((a = archive_read_new()) != NULL);
assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
assertEqualIntA(a, ARCHIVE_OK, read_open_memory_seek(a, p, archive_size, 16 * 1024));
assertEqualInt(ARCHIVE_OK, archive_read_next_header(a, &entry));
assertEqualInt(ARCHIVE_OK, archive_read_data_block(a, &pv, &s, &o));
assertEqualInt(262144, s);
assertEqualInt(0, o);
assertEqualInt(ARCHIVE_OK, archive_read_data_block(a, &pv, &s, &o));
assertEqualInt(160, s);
assertEqualInt(262144, o);
assertEqualInt(ARCHIVE_EOF, archive_read_data_block(a, &pv, &s, &o));
assertEqualInt(ARCHIVE_OK, archive_free(a));
free(p);
}
/*
* Synthesize a lot of varying inputs that are highly compressible.
*/
DEFINE_TEST(test_read_format_zip_high_compression2)
{
const size_t body_size = 1024 * 1024;
const size_t buff_size = 2 * 1024 * 1024;
char *body, *body_read, *buff;
int n;
if (archive_zlib_version() == NULL) {
skipping("Zip compression test requires zlib");
return;
}
assert((body = malloc(body_size)) != NULL);
assert((body_read = malloc(body_size)) != NULL);
assert((buff = malloc(buff_size)) != NULL);
/* Highly-compressible data: all bytes 255, except for a
* single 1 byte.
* The body is always 256k + 6 bytes long (the internal deflation
* buffer is exactly 256k).
*/
for(n = 1024; n < (int)body_size; n += 1024) {
struct archive *a;
struct archive_entry *entry;
size_t used = 0;
const void *pv;
size_t s;
int64_t o;
memset(body, 255, body_size);
body[n] = 1;
/* Write an archive with a single entry of n bytes. */
assert((a = archive_write_new()) != NULL);
assertEqualInt(ARCHIVE_OK, archive_write_set_format_zip(a));
assertEqualInt(ARCHIVE_OK, archive_write_open_memory(a, buff, buff_size, &used));
entry = archive_entry_new2(a);
archive_entry_set_pathname(entry, "test");
archive_entry_set_filetype(entry, AE_IFREG);
archive_entry_set_size(entry, 262150);
assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
archive_entry_free(entry);
assertEqualInt(262150, archive_write_data(a, body, 262150));
assertEqualInt(ARCHIVE_OK, archive_write_free(a));
/* Read back the entry and verify the contents. */
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, read_open_memory(a, buff, used, 17));
assertEqualInt(ARCHIVE_OK, archive_read_next_header(a, &entry));
assertEqualInt(ARCHIVE_OK, archive_read_data_block(a, &pv, &s, &o));
assertEqualInt(262144, s);
assertEqualInt(0, o);
assertEqualInt(ARCHIVE_OK, archive_read_data_block(a, &pv, &s, &o));
assertEqualInt(6, s);
assertEqualInt(262144, o);
assertEqualInt(ARCHIVE_EOF, archive_read_data_block(a, &pv, &s, &o));
assertEqualInt(ARCHIVE_OK, archive_free(a));
}
free(body);
free(body_read);
free(buff);
}
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