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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2023 The Fluent Bit Authors
*
* 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 <fluent-bit.h>
#include <fluent-bit/flb_sds.h>
#include <fluent-bit/flb_aws_util.h>
#include <fluent-bit/flb_mem.h>
#include "flb_fuzz_header.h"
int initialization_crutch()
{
struct flb_config *config;
config = flb_config_init();
if (config == NULL) {
return -1;
}
flb_config_exit(config);
return 0;
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
char *format = NULL;
char *tag = NULL;
char *tag_delimiter = NULL;
/* 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;
}
if (size < 300) {
return 0;
}
format = get_null_terminated(50, &data, &size);
tag = get_null_terminated(100, &data, &size);
tag_delimiter = get_null_terminated(100, &data, &size);
struct tm day = { 0, 0, 0, 15, 7, 120};
time_t t;
memset(&t, 0, sizeof(time_t));
if (format && tag && tag_delimiter) {
if (!initialization_crutch()) {
flb_sds_t s3_key_format = NULL;
s3_key_format = flb_get_s3_key(format, t, tag, tag_delimiter, 0);
if (s3_key_format) {
flb_sds_destroy(s3_key_format);
}
if (size > 200) {
char *json_val = get_null_terminated(100, &data, &size);
if (json_val != NULL) {
flb_sds_t s1 = flb_aws_error(json_val, strlen(json_val));
if (s1 != NULL) {
flb_sds_destroy(s1);
}
flb_free(json_val);
}
char *xml_val = get_null_terminated(100, &data, &size);
if (xml_val != NULL) {
flb_sds_t s2 = flb_aws_xml_error(xml_val, strlen(xml_val));
if (s2 != NULL) {
flb_sds_destroy(s2);
}
flb_free(xml_val);
}
}
}
}
if (format) {
flb_free(format);
}
if (tag) {
flb_free(tag);
}
if (tag_delimiter) {
flb_free(tag_delimiter);
}
return 0;
}
|