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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <fuzzer/FuzzedDataProvider.h>
#include <string>
#include "deflate.h"
#include "zopfli.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
ZopfliOptions options;
ZopfliInitOptions(&options);
FuzzedDataProvider stream(data, size);
// From documentation: valid values for btype are 0, 1, or 2.
const int btype = stream.PickValueInArray({0, 1, 2});
// The final parameter is an int but it is used as a bool.
const int is_final = stream.ConsumeIntegralInRange(0, 1);
const std::string input = stream.ConsumeRemainingBytesAsString();
unsigned char* out = nullptr;
size_t outsize = 0;
unsigned char bp = 0; // Apparently must be zero.
ZopfliDeflate(&options, btype, is_final,
reinterpret_cast<const unsigned char*>(input.data()),
input.size(), &bp, &out, &outsize);
if (out != nullptr) {
free(out);
}
return 0;
}
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