/*
* checksum-test.c: tests checksum functions.
*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*/
#include <apr_pools.h>
#include <zlib.h>
#include "svn_error.h"
#include "svn_io.h"
#include "private/svn_pseudo_md5.h"
#include "../svn_test.h"
static svn_error_t *
test_checksum_parse(apr_pool_t *pool)
{
const char *md5_digest = "8518b76f7a45fe4de2d0955085b41f98";
const char *sha1_digest = "74d82379bcc6771454377db03b912c2b62704139";
const char *checksum_display;
svn_checksum_t *checksum;
SVN_ERR(svn_checksum_parse_hex(&checksum, svn_checksum_md5, md5_digest, pool));
checksum_display = svn_checksum_to_cstring_display(checksum, pool);
if (strcmp(checksum_display, md5_digest) != 0)
return svn_error_createf
(SVN_ERR_CHECKSUM_MISMATCH, NULL,
"verify-checksum: md5 checksum mismatch:\n"
" expected: %s\n"
" actual: %s\n", md5_digest, checksum_display);
SVN_ERR(svn_checksum_parse_hex(&checksum, svn_checksum_sha1, sha1_digest,
pool));
checksum_display = svn_checksum_to_cstring_display(checksum, pool);
if (strcmp(checksum_display, sha1_digest) != 0)
return svn_error_createf
(SVN_ERR_CHECKSUM_MISMATCH, NULL,
"verify-checksum: sha1 checksum mismatch:\n"
" expected: %s\n"
" actual: %s\n", sha1_digest, checksum_display);
return SVN_NO_ERROR;
}
static svn_error_t *
test_checksum_empty(apr_pool_t *pool)
{
svn_checksum_t *checksum;
char data = '\0';
checksum = svn_checksum_empty_checksum(svn_checksum_md5, pool);
SVN_TEST_ASSERT(svn_checksum_is_empty_checksum(checksum));
checksum = svn_checksum_empty_checksum(svn_checksum_sha1, pool);
SVN_TEST_ASSERT(svn_checksum_is_empty_checksum(checksum));
SVN_ERR(svn_checksum(&checksum, svn_checksum_md5, &data, 0, pool));
SVN_TEST_ASSERT(svn_checksum_is_empty_checksum(checksum));
SVN_ERR(svn_checksum(&checksum, svn_checksum_sha1, &data, 0, pool));
SVN_TEST_ASSERT(svn_checksum_is_empty_checksum(checksum));
return SVN_NO_ERROR;
}
static svn_error_t *
test_pseudo_md5(apr_pool_t *pool)
{
apr_uint32_t input[16] = { 0 };
apr_uint32_t digest_15[4] = { 0 };
apr_uint32_t digest_31[4] = { 0 };
apr_uint32_t digest_63[4] = { 0 };
svn_checksum_t *checksum;
/* input is all 0s but the hash shall be different
(due to different input sizes)*/
svn__pseudo_md5_15(digest_15, input);
svn__pseudo_md5_31(digest_31, input);
svn__pseudo_md5_63(digest_63, input);
SVN_TEST_ASSERT(memcmp(digest_15, digest_31, sizeof(digest_15)));
SVN_TEST_ASSERT(memcmp(digest_15, digest_63, sizeof(digest_15)));
SVN_TEST_ASSERT(memcmp(digest_31, digest_63, sizeof(digest_15)));
/* the checksums shall also be different from "proper" MD5 */
SVN_ERR(svn_checksum(&checksum, svn_checksum_md5, input, 15, pool));
SVN_TEST_ASSERT(memcmp(digest_15, checksum->digest, sizeof(digest_15)));
SVN_ERR(svn_checksum(&checksum, svn_checksum_md5, input, 31, pool));
SVN_TEST_ASSERT(memcmp(digest_31, checksum->digest, sizeof(digest_15)));
SVN_ERR(svn_checksum(&checksum, svn_checksum_md5, input, 63, pool));
SVN_TEST_ASSERT(memcmp(digest_63, checksum->digest, sizeof(digest_15)));
return SVN_NO_ERROR;
}
static svn_error_t *
zero_match(apr_pool_t *pool)
{
svn_checksum_t *zero_md5;
svn_checksum_t *zero_sha1;
svn_checksum_t *A_md5;
svn_checksum_t *B_md5;
svn_checksum_t *A_sha1;
svn_checksum_t *B_sha1;
zero_md5 = svn_checksum_create(svn_checksum_md5, pool);
SVN_ERR(svn_checksum_clear(zero_md5));
SVN_ERR(svn_checksum(&A_md5, svn_checksum_md5, "A", 1, pool));
SVN_ERR(svn_checksum(&B_md5, svn_checksum_md5, "B", 1, pool));
zero_sha1 = svn_checksum_create(svn_checksum_sha1, pool);
SVN_ERR(svn_checksum_clear(zero_sha1));
SVN_ERR(svn_checksum(&A_sha1, svn_checksum_sha1, "A", 1, pool));
SVN_ERR(svn_checksum(&B_sha1, svn_checksum_sha1, "B", 1, pool));
/* Different non-zero don't match. */
SVN_TEST_ASSERT(!svn_checksum_match(A_md5, B_md5));
SVN_TEST_ASSERT(!svn_checksum_match(A_sha1, B_sha1));
SVN_TEST_ASSERT(!svn_checksum_match(A_md5, A_sha1));
SVN_TEST_ASSERT(!svn_checksum_match(A_md5, B_sha1));
/* Zero matches anything of the same kind. */
SVN_TEST_ASSERT(svn_checksum_match(A_md5, zero_md5));
SVN_TEST_ASSERT(svn_checksum_match(zero_md5, B_md5));
SVN_TEST_ASSERT(svn_checksum_match(A_sha1, zero_sha1));
SVN_TEST_ASSERT(svn_checksum_match(zero_sha1, B_sha1));
/* Zero doesn't match anything of a different kind... */
SVN_TEST_ASSERT(!svn_checksum_match(zero_md5, A_sha1));
SVN_TEST_ASSERT(!svn_checksum_match(zero_sha1, A_md5));
/* ...even another zero. */
SVN_TEST_ASSERT(!svn_checksum_match(zero_md5, zero_sha1));
return SVN_NO_ERROR;
}
static svn_error_t *
zlib_expansion_test(const svn_test_opts_t *opts,
apr_pool_t *pool)
{
const char *data_path;
svn_stringbuf_t *deflated;
Byte dst_buffer[256 * 1024];
Byte *src_buffer;
apr_size_t sz;
data_path = svn_dirent_join(opts->srcdir, "zlib.deflated", pool);
SVN_ERR(svn_stringbuf_from_file2(&deflated, data_path, pool));
src_buffer = (Byte*)deflated->data;
/* Try to decompress the same data with different blocksizes */
for (sz = 1; sz < 256; sz++)
{
z_stream stream;
memset(&stream, 0, sizeof(stream));
inflateInit2(&stream, -15 /* DEFLATE_WINDOW_SIZE */);
stream.avail_in = sz;
stream.next_in = src_buffer;
stream.avail_out = sizeof(dst_buffer);
stream.next_out = dst_buffer;
do
{
int zr = inflate(&stream, Z_NO_FLUSH);
if (zr != Z_OK && zr != Z_STREAM_END)
{
return svn_error_createf(
SVN_ERR_TEST_FAILED, NULL,
"Failure decompressing with blocksize %d", (int)sz);
}
stream.avail_in += sz;
} while (stream.next_in + stream.avail_in < src_buffer + deflated->len);
stream.avail_in = (src_buffer + deflated->len) - stream.next_in;
{
int zr = inflate(&stream, Z_NO_FLUSH);
if (zr != Z_STREAM_END)
{
return svn_error_createf(
SVN_ERR_TEST_FAILED, NULL,
"Final flush failed with blocksize %d", (int)sz);
}
zr = inflateEnd(&stream);
if (zr != Z_OK)
{
return svn_error_createf(
SVN_ERR_TEST_FAILED, NULL,
"End of stream handling failed with blocksize %d",
(int)sz);
}
}
{
apr_uint32_t crc = crc32(0, dst_buffer, stream.total_out);
if (stream.total_out != 242014 || crc != 0x8f03d934)
{
return svn_error_createf(
SVN_ERR_TEST_FAILED, NULL,
"Decompressed data doesn't match expected size or crc with "
"blocksize %d: Found crc32=0x%08x, size=%d.\n"
"Verify your ZLib installation, as this should never happen",
(int)sz, (unsigned)crc, (int)stream.total_out);
}
}
}
return SVN_NO_ERROR;
}
/* An array of all test functions */
struct svn_test_descriptor_t test_funcs[] =
{
SVN_TEST_NULL,
SVN_TEST_PASS2(test_checksum_parse,
"checksum parse"),
SVN_TEST_PASS2(test_checksum_empty,
"checksum emptiness"),
SVN_TEST_PASS2(test_pseudo_md5,
"pseudo-md5 compatibility"),
SVN_TEST_PASS2(zero_match,
"zero checksum matching"),
SVN_TEST_OPTS_PASS(zlib_expansion_test,
"zlib expansion test (zlib regression)"),
SVN_TEST_NULL
};