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
|
/******************************************************************************
*
* Project: GDAL
* Purpose: Fuzzer
* Author: Even Rouault, even.rouault at spatialys.com
*
******************************************************************************
* Copyright (c) 2022, Even Rouault <even.rouault at spatialys.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include <stddef.h>
#include <stdint.h>
#include "gdal.h"
#include "cpl_conv.h"
#include "cpl_string.h"
#include "cpl_vsi.h"
#include "gdal_priv.h"
extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv);
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len);
int LLVMFuzzerInitialize(int * /*argc*/, char ***argv)
{
const char *exe_path = (*argv)[0];
if (CPLGetConfigOption("GDAL_DATA", nullptr) == nullptr)
{
CPLSetConfigOption("GDAL_DATA", CPLGetPath(exe_path));
}
CPLSetConfigOption("CPL_TMPDIR", "/tmp");
CPLSetConfigOption("DISABLE_OPEN_REAL_NETCDF_FILES", "YES");
// Disable PDF text rendering as fontconfig cannot access its config files
CPLSetConfigOption("GDAL_PDF_RENDERING_OPTIONS", "RASTER,VECTOR");
// to avoid timeout in WMS driver
CPLSetConfigOption("GDAL_WMS_ABORT_CURL_REQUEST", "YES");
CPLSetConfigOption("GDAL_HTTP_TIMEOUT", "1");
CPLSetConfigOption("GDAL_HTTP_CONNECTTIMEOUT", "1");
CPLSetConfigOption("GDAL_CACHEMAX", "1000"); // Limit to 1 GB
#ifdef GTIFF_USE_MMAP
CPLSetConfigOption("GTIFF_USE_MMAP", "YES");
#endif
#ifdef GDAL_SKIP
CPLSetConfigOption("GDAL_SKIP", GDAL_SKIP);
#endif
GDALAllRegister();
return 0;
}
int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)
{
VSIFCloseL(VSIFileFromMemBuffer(
"/vsimem/input.tar",
reinterpret_cast<GByte *>(const_cast<uint8_t *>(buf)), len, FALSE));
CPLErrorHandlerPusher oErrorHandler(CPLQuietErrorHandler);
GByte *paby = nullptr;
vsi_l_offset nSize = 0;
if (!VSIIngestFile(nullptr, "/vsitar//vsimem/input.tar/filename", &paby,
&nSize, -1))
{
VSIUnlink("/vsimem/input.tar");
return 0;
}
const std::string osFilename(reinterpret_cast<const char *>(paby));
VSIFree(paby);
paby = nullptr;
nSize = 0;
int ret = VSIIngestFile(nullptr, "/vsitar//vsimem/input.tar/content", &paby,
&nSize, -1);
VSIUnlink("/vsimem/input.tar");
if (!ret)
{
return 0;
}
const std::string osRealFilename("/vsimem/" + osFilename);
VSIFCloseL(VSIFileFromMemBuffer(osRealFilename.c_str(), paby,
static_cast<size_t>(nSize), TRUE));
delete GDALDataset::Open(osRealFilename.c_str());
VSIUnlink(osRealFilename.c_str());
return 0;
}
|
