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
|
/* Copyright (c) 2016-2019, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#define CONSDIFF_PRIVATE
#include "orconfig.h"
#include "core/or/or.h"
#include "feature/dircommon/consdiff.h"
#include "test/fuzz/fuzzing.h"
static int
mock_consensus_compute_digest_(const char *c, consensus_digest_t *d)
{
(void)c;
memset(d->sha3_256, 3, sizeof(d->sha3_256));
return 0;
}
int
fuzz_init(void)
{
MOCK(consensus_compute_digest, mock_consensus_compute_digest_);
MOCK(consensus_compute_digest_as_signed, mock_consensus_compute_digest_);
return 0;
}
int
fuzz_cleanup(void)
{
UNMOCK(consensus_compute_digest);
UNMOCK(consensus_compute_digest_as_signed);
return 0;
}
int
fuzz_main(const uint8_t *stdin_buf, size_t data_size)
{
#define SEP "=====\n"
#define SEPLEN strlen(SEP)
const uint8_t *separator = tor_memmem(stdin_buf, data_size, SEP, SEPLEN);
if (! separator)
return 0;
size_t c1_len = separator - stdin_buf;
char *c1 = tor_memdup_nulterm(stdin_buf, c1_len);
size_t c2_len = data_size - c1_len - SEPLEN;
char *c2 = tor_memdup_nulterm(separator + SEPLEN, c2_len);
char *c3 = consensus_diff_generate(c1, c2);
if (c3) {
char *c4 = consensus_diff_apply(c1, c3);
tor_assert(c4);
if (strcmp(c2, c4)) {
printf("%s\n", escaped(c1));
printf("%s\n", escaped(c2));
printf("%s\n", escaped(c3));
printf("%s\n", escaped(c4));
}
tor_assert(! strcmp(c2, c4));
tor_free(c3);
tor_free(c4);
}
tor_free(c1);
tor_free(c2);
return 0;
}
|
