1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/* Fluent Bit
* ==========
* Copyright (C) 2019-2022 The Fluent Bit Authors
* Copyright (C) 2015-2018 Treasure Data Inc.
*
* Licensed 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 <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_fstore.h>
#include <fluent-bit/flb_mem.h>
#include <fluent-bit/flb_compat.h>
#include <chunkio/chunkio.h>
#include <chunkio/cio_utils.h>
#include <sys/types.h>
#include <sys/stat.h>
#define FSF_STORE_PATH "/tmp/flb-fstore"
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
int ret;
void *out_buf;
size_t out_size;
struct stat st_data;
struct flb_fstore *fs;
struct flb_fstore_stream *st;
struct flb_fstore_file *fsf;
/* Set flb_malloc_mod to be fuzzer-data dependent */
if (size < 4) {
return 0;
}
flb_malloc_p = 0;
flb_malloc_mod = *(int*)data;
data += 4;
size -= 4;
/* Avoid division by zero for modulo operations */
if (flb_malloc_mod == 0) {
flb_malloc_mod = 1;
}
cio_utils_recursive_delete(FSF_STORE_PATH);
fs = flb_fstore_create(FSF_STORE_PATH, FLB_FSTORE_FS);
if (fs == NULL) {
return 0;
}
st = flb_fstore_stream_create(fs, "abc");
if (st != NULL) {
fsf = flb_fstore_file_create(fs, st, "example.txt", size);
if (fsf != NULL) {
ret = flb_fstore_file_append(fsf, data, size);
if (ret == 0) {
ret = flb_fstore_file_content_copy(fs, fsf, &out_buf, &out_size);
if (ret == 0) {
assert(memcmp(out_buf, data, size) == 0);
}
flb_free(out_buf);
}
}
}
flb_fstore_dump(fs);
flb_fstore_destroy(fs);
return 0;
}
|
