fuzz_driver.cc

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// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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 <cassert>
#include <iostream>
#include <fstream>
#include <vector>
 
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
 
int main(int argc, char **argv) {
  for (int i = 1; i < argc; i++) {
    std::ifstream in(argv[i], std::ios_base::in | std::ios_base::binary);
    in.seekg(0, in.end);
    size_t length = in.tellg();
    in.seekg (0, in.beg);
    std::cout << "Reading " << length << " bytes from " << argv[i] << std::endl;
    // Allocate exactly length bytes so that we reliably catch buffer overflows.
    std::vector<char> bytes(length);
    in.read(bytes.data(), bytes.size());
    assert(in);
    LLVMFuzzerTestOneInput(reinterpret_cast<const uint8_t *>(bytes.data()),
                           bytes.size());
    std::cout << "Execution successful" << std::endl;
  }
}