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/*
Fuzzing for lzxpress_huffman{_decompress,_compress} round trip
Copyright (C) Michael Hanselmann 2019
Copyright (C) Douglas Bagnall 2022 <dbagnall@samba.org>
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 "compression/lzxpress_huffman.h"
int LLVMFuzzerInitialize(int *argc, char ***argv)
{
return 0;
}
int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
{
/*
* we allow compressed to be 25% bigger than decompressed.
*/
static uint8_t compressed[1024 * (1024 + 256)];
static uint8_t decompressed[1024 * 1024];
ssize_t compressed_size;
ssize_t decompressed_size;
struct lzxhuff_compressor_mem cmp;
if (len > sizeof(decompressed) || len == 0) {
return 0;
}
compressed_size = lzxpress_huffman_compress(&cmp,
buf,
len,
compressed,
sizeof(compressed));
if (compressed_size < 0) {
abort();
}
decompressed_size = lzxpress_huffman_decompress(compressed,
compressed_size,
decompressed,
len);
if (decompressed_size != len) {
abort();
}
if (memcmp(buf, decompressed, len) != 0) {
abort();
}
return 0;
}
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