1 /*
2 * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except", "in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <cstddef>
17 #include <cstdint>
18 #include <string>
19 #include "i18n_calendar.h"
20 #include "calendar_fuzzer.h"
21 #include "unicode/ucal.h"
22 #include "unicode/utypes.h"
23
24 namespace OHOS {
25 const size_t FIRST_PARAM_OFFSET_SIZE = 8;
26 const size_t SECOND_PARAM_OFFSET_SIZE = 16;
27
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)28 void DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
29 {
30 using namespace Global::I18n;
31
32 uint32_t offset = 0;
33 std::string input(reinterpret_cast<const char*>(data), size);
34 I18nCalendar calendar(input, CalendarType::GREGORY);
35 if (size >= FIRST_PARAM_OFFSET_SIZE) {
36 double number = *(reinterpret_cast<const double*>(data + offset));
37 calendar.SetTime(number);
38 }
39
40 calendar.Set(size, size, size);
41 calendar.Set(UCalendarDateFields::UCAL_YEAR, size);
42 calendar.GetTimeZone();
43 calendar.SetTimeZone(input);
44 calendar.GetTimeInMillis();
45 calendar.GetMinimalDaysInFirstWeek();
46 calendar.GetFirstDayOfWeek();
47 UErrorCode status = U_ZERO_ERROR;
48 calendar.IsWeekend(size, status);
49 calendar.IsWeekend();
50 calendar.GetDisplayName(input);
51 if (size < SECOND_PARAM_OFFSET_SIZE) {
52 return;
53 }
54 offset += sizeof(double);
55 double compareDay = *(reinterpret_cast<const double*>(data + offset));
56 calendar.CompareDays(compareDay);
57 }
58 }
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
62 {
63 /* Run your code on data */
64 OHOS::DoSomethingInterestingWithMyAPI(data, size);
65 return 0;
66 }
67
68