// 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 <vector>

#include "expat.h"  // NOLINT

#include "examples/xml/xml.pb.h"

#include "examples/xml/xml_writer.h"

#include "src/libfuzzer/libfuzzer_macro.h"

namespace {

const std::vector<const char*> kEncodings = {{"UTF-16", "UTF-8", "ISO-8859-1",

                                              "US-ASCII", "UTF-16BE",

                                              "UTF-16LE", "INVALIDENCODING"}};

}

DEFINE_PROTO_FUZZER(const protobuf_mutator::xml::Input& message) {

  std::string xml = MessageToXml(message.document());

  int options = message.options();

  int use_ns = options % 2;

  options /= 2;

  auto enc = kEncodings[options % kEncodings.size()];

  XML_Parser parser =

      use_ns ? XML_ParserCreateNS(enc, '\n') : XML_ParserCreate(enc);

  XML_Parse(parser, xml.data(), xml.size(), true);

  XML_ParserFree(parser);

}