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
|
/*
* Copyright (c) 2017-2020 Free Software Foundation, Inc.
*
* This file is part of GNU Wget.
*
* GNU Wget 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.
*
* GNU Wget 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 Wget. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <sys/types.h>
#include <stdint.h> // uint8_t
#include <stdio.h> // fmemopen
#include <string.h> // strncmp
#include <stdlib.h> // free
#include <unistd.h> // close
#include <fcntl.h> // open flags
#include <unistd.h> // close
#include "wget.h"
#undef fopen_wgetrc
#ifdef __cplusplus
extern "C" {
#endif
#include "url.h"
// declarations for wget internal functions
int main_wget(int argc, const char **argv);
void cleanup(void);
FILE *fopen_wget(const char *pathname, const char *mode);
FILE *fopen_wgetrc(const char *pathname, const char *mode);
void exit_wget(int status);
#ifdef __cplusplus
}
#endif
#include "fuzzer.h"
FILE *fopen_wget(const char *pathname, const char *mode)
{
return fopen("/dev/null", mode);
}
FILE *fopen_wgetrc(const char *pathname, const char *mode)
{
return NULL;
}
#ifdef FUZZING
void exit_wget(int status)
{
}
#endif
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
struct url *url;
struct iri iri;
char *in;
if (size > 4096) // same as max_len = ... in .options file
return 0;
CLOSE_STDERR
in = (char *) malloc(size + 1);
memcpy(in, data, size);
in[size] = 0;
iri.uri_encoding = (char *) "iso-8859-1";
iri.orig_url = NULL;
iri.utf8_encode = 0;
url = url_parse(in, NULL, &iri, 0);
url_free(url);
url = url_parse(in, NULL, &iri, 1);
url_free(url);
iri.utf8_encode = 1;
url = url_parse(in, NULL, &iri, 0);
url_free(url);
url = url_parse(in, NULL, &iri, 1);
url_free(url);
free(iri.orig_url);
free(in);
RESTORE_STDERR
return 0;
}
|
