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
|
// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "lib/jxl/enc_icc_codec.h"
#include "lib/jxl/icc_codec.h"
namespace jxl {
int TestOneInput(const uint8_t* data, size_t size) {
#if defined(JXL_ICC_FUZZER_ONLY_WRITE)
bool read = false;
#elif defined(JXL_ICC_FUZZER_ONLY_READ)
bool read = true;
#else
// Decide whether to test the reader or the writer (both use parsing)
if (!size) return 0;
bool read = data[0] == 0;
data++;
size--;
#endif
#ifdef JXL_ICC_FUZZER_SLOW_TEST
// Including JPEG XL LZ77 and ANS compression. These are already fuzzed
// separately, so it is better to disable JXL_ICC_FUZZER_SLOW_TEST to focus on
// the ICC parsing.
if (read) {
// Reading parses the compressed format.
BitReader br(Span<const uint8_t>(data, size));
PaddedBytes result;
(void)ReadICC(&br, &result);
(void)br.Close();
} else {
// Writing parses the original ICC profile.
PaddedBytes icc;
icc.assign(data, data + size);
BitWriter writer;
AuxOut aux;
// Writing should support any random bytestream so must succeed, make
// fuzzer fail if not.
JXL_ASSERT(WriteICC(icc, &writer, 0, &aux));
}
#else // JXL_ICC_FUZZER_SLOW_TEST
if (read) {
// Reading (unpredicting) parses the compressed format.
PaddedBytes result;
(void)UnpredictICC(data, size, &result);
} else {
// Writing (predicting) parses the original ICC profile.
PaddedBytes result;
// Writing should support any random bytestream so must succeed, make
// fuzzer fail if not.
JXL_ASSERT(PredictICC(data, size, &result));
PaddedBytes reconstructed;
JXL_ASSERT(UnpredictICC(result.data(), result.size(), &reconstructed));
JXL_ASSERT(reconstructed.size() == size);
JXL_ASSERT(memcmp(data, reconstructed.data(), size) == 0);
}
#endif // JXL_ICC_FUZZER_SLOW_TEST
return 0;
}
} // namespace jxl
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
return jxl::TestOneInput(data, size);
}
|
