1 /******************************************************************************
2 *
3 * Copyright (C) 2022 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *****************************************************************************
18 */
19 #include <fuzzer/FuzzedDataProvider.h>
20
21 #include "LocaleListCache.h"
22 #include "minikin/LocaleList.h"
23
24 using namespace minikin;
25
26 const SubtagBits subtangBits[] = {SubtagBits::EMPTY, SubtagBits::LANGUAGE, SubtagBits::SCRIPT,
27 SubtagBits::REGION, SubtagBits::VARIANT, SubtagBits::EMOJI,
28 SubtagBits::ALL};
29
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)30 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
31 FuzzedDataProvider fdp(data, size);
32
33 uint32_t id = registerLocaleList(fdp.ConsumeRandomLengthString());
34 uint32_t localeListId = fdp.ConsumeIntegralInRange<uint32_t>(0, id);
35 const LocaleList& locales = LocaleListCache::getById(localeListId);
36 std::string langTag = getLocaleString(localeListId);
37
38 for (size_t i = 0; i < locales.size(); i++) {
39 locales[i].getPartialLocale(fdp.PickValueInArray(subtangBits));
40 locales[i].supportsScript(fdp.ConsumeIntegral<uint32_t>());
41 locales[i].calcScoreFor(locales);
42 }
43
44 BufferWriter fakeWriter(nullptr);
45 LocaleListCache::writeTo(&fakeWriter, LocaleListCache::getId(langTag));
46 std::vector<uint8_t> buffer(fakeWriter.size());
47 BufferWriter writer(buffer.data());
48 LocaleListCache::writeTo(&writer, LocaleListCache::getId(langTag));
49 BufferReader reader(buffer.data());
50 LocaleListCache::readFrom(&reader);
51
52 return 0;
53 }
54