2 Fuzzing for lzxpress_huffman_compress_talloc
3 Copyright (C) Michael Hanselmann 2019
4 Copyright (C) Douglas Bagnall 2022 <dbagnall@samba.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "fuzzing/fuzzing.h"
22 #include "compression/lzxpress_huffman.h"
24 int LLVMFuzzerInitialize(int *argc
, char ***argv
)
30 #define MAX_SIZE (1024 * 1024)
32 int LLVMFuzzerTestOneInput(const uint8_t *buf
, size_t len
)
34 static uint8_t *output
;
36 TALLOC_CTX
*mem_ctx
= NULL
;
37 struct lzxhuff_compressor_mem cmp_mem
;
40 * The round-trip fuzzer checks the compressor with an unconstrained
41 * output buffer; here we see what happens if the buffer is possibly too
47 output_len
= MIN(MAX_SIZE
, buf
[0] | (buf
[1] << 8) | (buf
[2] << 16));
50 mem_ctx
= talloc_new(NULL
);
52 output
= talloc_array(mem_ctx
, uint8_t, output_len
);
54 lzxpress_huffman_compress(&cmp_mem
, buf
, len
, output
, output_len
);