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fuzz: add lzxpress compress/decompress round-trip

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We say it is an error to end up at a different result.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Douglas Bagnall 2022-05-11 12:08:54 +12:00 committed by Andrew Bartlett
parent 6c9fd8fbdb
commit 8a91ffa6bd
2 changed files with 58 additions and 0 deletions
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53
lib/fuzzing/fuzz_lzxpress_round_trip.c Normal file
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@ -0,0 +1,53 @@
/*
Fuzzing for lzxpress_decompress
Copyright (C) Michael Hanselmann 2019
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "fuzzing/fuzzing.h"
#include "lzxpress.h"
int LLVMFuzzerInitialize(int *argc, char ***argv)
{
return 0;
}
int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
{
static uint8_t compressed[1024 * 1024] = {0};
static uint8_t decompressed[1024 * 1024] = {0};
ssize_t compressed_size;
ssize_t decompressed_size;
if (len > sizeof(decompressed)) {
return 0;
}
compressed_size = lzxpress_compress(buf, len,
compressed, sizeof(compressed));
decompressed_size = lzxpress_decompress(compressed, compressed_size,
decompressed, sizeof(decompressed));
if (decompressed_size != len) {
abort();
}
if (memcmp(buf, decompressed, len) != 0) {
abort();
}
return 0;
}

5
lib/fuzzing/wscript_build
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@ -52,6 +52,11 @@ bld.SAMBA_BINARY('fuzz_lzxpress_compress',
deps='fuzzing LZXPRESS afl-fuzz-main',
fuzzer=True)
bld.SAMBA_BINARY('fuzz_lzxpress_round_trip',
source='fuzz_lzxpress_round_trip.c',
deps='fuzzing LZXPRESS afl-fuzz-main',
fuzzer=True)
bld.SAMBA_BINARY('fuzz_ldap_decode',
source='fuzz_ldap_decode.c',
deps='fuzzing cli-ldap afl-fuzz-main',