128 lines
3.2 KiB
C++
128 lines
3.2 KiB
C++
// Copyright 2018 The Chromium Authors
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include <fuzzer/FuzzedDataProvider.h>
|
|
|
|
#include <tuple>
|
|
|
|
#include "base/pickle.h"
|
|
|
|
namespace {
|
|
constexpr int kIterations = 16;
|
|
constexpr int kReadControlBytes = 32;
|
|
constexpr int kReadDataTypes = 17;
|
|
constexpr int kMaxReadLength = 1024;
|
|
constexpr int kMaxSkipBytes = 1024;
|
|
} // namespace
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
|
|
if (size < kReadControlBytes) {
|
|
return 0;
|
|
}
|
|
// Use the first kReadControlBytes bytes of the fuzzer input to control how
|
|
// the pickled data is read.
|
|
FuzzedDataProvider data_provider(data, kReadControlBytes);
|
|
data += kReadControlBytes;
|
|
size -= kReadControlBytes;
|
|
|
|
base::Pickle pickle(reinterpret_cast<const char*>(data), size);
|
|
base::PickleIterator iter(pickle);
|
|
for (int i = 0; i < kIterations; i++) {
|
|
uint8_t read_type = data_provider.ConsumeIntegral<uint8_t>();
|
|
switch (read_type % kReadDataTypes) {
|
|
case 0: {
|
|
bool result = 0;
|
|
std::ignore = iter.ReadBool(&result);
|
|
break;
|
|
}
|
|
case 1: {
|
|
int result = 0;
|
|
std::ignore = iter.ReadInt(&result);
|
|
break;
|
|
}
|
|
case 2: {
|
|
long result = 0;
|
|
std::ignore = iter.ReadLong(&result);
|
|
break;
|
|
}
|
|
case 3: {
|
|
uint16_t result = 0;
|
|
std::ignore = iter.ReadUInt16(&result);
|
|
break;
|
|
}
|
|
case 4: {
|
|
uint32_t result = 0;
|
|
std::ignore = iter.ReadUInt32(&result);
|
|
break;
|
|
}
|
|
case 5: {
|
|
int64_t result = 0;
|
|
std::ignore = iter.ReadInt64(&result);
|
|
break;
|
|
}
|
|
case 6: {
|
|
uint64_t result = 0;
|
|
std::ignore = iter.ReadUInt64(&result);
|
|
break;
|
|
}
|
|
case 7: {
|
|
float result = 0;
|
|
std::ignore = iter.ReadFloat(&result);
|
|
break;
|
|
}
|
|
case 8: {
|
|
double result = 0;
|
|
std::ignore = iter.ReadDouble(&result);
|
|
break;
|
|
}
|
|
case 9: {
|
|
std::string result;
|
|
std::ignore = iter.ReadString(&result);
|
|
break;
|
|
}
|
|
case 10: {
|
|
base::StringPiece result;
|
|
std::ignore = iter.ReadStringPiece(&result);
|
|
break;
|
|
}
|
|
case 11: {
|
|
std::u16string result;
|
|
std::ignore = iter.ReadString16(&result);
|
|
break;
|
|
}
|
|
case 12: {
|
|
base::StringPiece16 result;
|
|
std::ignore = iter.ReadStringPiece16(&result);
|
|
break;
|
|
}
|
|
case 13: {
|
|
const char* data_result = nullptr;
|
|
size_t length_result = 0;
|
|
std::ignore = iter.ReadData(&data_result, &length_result);
|
|
break;
|
|
}
|
|
case 14: {
|
|
const char* data_result = nullptr;
|
|
int read_length =
|
|
data_provider.ConsumeIntegralInRange(0, kMaxReadLength);
|
|
std::ignore =
|
|
iter.ReadBytes(&data_result, static_cast<size_t>(read_length));
|
|
break;
|
|
}
|
|
case 15: {
|
|
size_t result = 0;
|
|
std::ignore = iter.ReadLength(&result);
|
|
break;
|
|
}
|
|
case 16: {
|
|
std::ignore = iter.SkipBytes(static_cast<size_t>(
|
|
data_provider.ConsumeIntegralInRange(0, kMaxSkipBytes)));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|