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// 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 <stddef.h>
#include <stdint.h>
#include <fuzzer/FuzzedDataProvider.h>
#include <vector>
#include "third_party/ced/src/compact_enc_det/compact_enc_det.h"
namespace {
constexpr size_t kMaxInputSize = 64 * 1024;
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
// Early out if there isn't enough data to extract options and pass data to
// the library.
if (size < 3 * sizeof(int32_t) + 1)
return 0;
// Limit the input size to avoid timing out on clusterfuzz.
if (size > kMaxInputSize)
return 0;
FuzzedDataProvider data_provider(data, size);
CompactEncDet::TextCorpusType corpus =
static_cast<CompactEncDet::TextCorpusType>(
data_provider.ConsumeIntegralInRange<int32_t>(
0, CompactEncDet::NUM_CORPA));
Encoding encoding_hint = static_cast<Encoding>(
data_provider.ConsumeIntegralInRange<int32_t>(0, NUM_ENCODINGS));
Language langauge_hint = static_cast<Language>(
data_provider.ConsumeIntegralInRange<int32_t>(0, NUM_LANGUAGES));
bool ignore_7bit_mail_encodings = data_provider.ConsumeBool();
std::vector<char> text = data_provider.ConsumeRemainingBytes<char>();
int bytes_consumed = 0;
bool is_reliable = false;
CompactEncDet::DetectEncoding(
text.data(), text.size(), nullptr /* url_hint */,
nullptr /* http_charset_hint */, nullptr /* meta_charset_hint */,
encoding_hint, langauge_hint, corpus, ignore_7bit_mail_encodings,
&bytes_consumed, &is_reliable);
return 0;
}
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