diff options
author | Douglas Bagnall <douglas.bagnall@catalyst.net.nz> | 2022-05-11 12:08:54 +1200 |
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committer | Andrew Bartlett <abartlet@samba.org> | 2022-05-12 02:22:35 +0000 |
commit | 8a91ffa6bd64746358faf8661649c33f683759ef (patch) | |
tree | 94c124b2e4be82c0a7d29dc90459c139e8100b79 /lib/fuzzing/fuzz_lzxpress_round_trip.c | |
parent | 6c9fd8fbdbecc47e0595d3606bccf7d143b01b61 (diff) | |
download | samba-8a91ffa6bd64746358faf8661649c33f683759ef.tar.gz |
fuzz: add lzxpress compress/decompress round-trip
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>
Diffstat (limited to 'lib/fuzzing/fuzz_lzxpress_round_trip.c')
-rw-r--r-- | lib/fuzzing/fuzz_lzxpress_round_trip.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/fuzzing/fuzz_lzxpress_round_trip.c b/lib/fuzzing/fuzz_lzxpress_round_trip.c new file mode 100644 index 00000000000..a6173bb68c9 --- /dev/null +++ b/lib/fuzzing/fuzz_lzxpress_round_trip.c @@ -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; +} |