1/*
2 * Copyright (c) 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 "abilitymgrrestartappmanager_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20#include "securec.h"
21#include <iostream>
22#include <ctime>
23#define private public
24#include "restart_app_manager.h"
25#undef private
26
27using namespace OHOS::AAFwk;
28
29namespace OHOS {
30namespace {
31constexpr int INPUT_ZERO = 0;
32constexpr int INPUT_ONE = 1;
33constexpr int INPUT_TWO = 2;
34constexpr int INPUT_THREE = 3;
35constexpr size_t FOO_MAX_LEN = 1024;
36constexpr size_t U32_AT_SIZE = 4;
37constexpr size_t OFFSET_ZERO = 24;
38constexpr size_t OFFSET_ONE = 16;
39constexpr size_t OFFSET_TWO = 8;
40constexpr uint8_t ENABLE = 2;
41}
42
43uint32_t GetU32Data(const char* ptr)
44{
45    // convert fuzz input data to an integer
46    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
47        ptr[INPUT_THREE];
48}
49
50bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
51{
52    std::shared_ptr<RestartAppManager> restartAppManager = std::make_shared<RestartAppManager>();
53    std::string stringParam(data, size);
54    int32_t uid = static_cast<int32_t>(GetU32Data(data));
55    time_t currentTime = static_cast<time_t>(GetU32Data(data));
56    restartAppManager-> GetInstance();
57    restartAppManager-> IsRestartAppFrequent(uid, currentTime);
58    restartAppManager-> AddRestartAppHistory(uid, currentTime);
59    restartAppManager-> IsForegroundToRestartApp();
60    return true;
61}
62} // namespace OHOS
63
64/* Fuzzer entry point */
65extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
66{
67    /* Run your code on data */
68    if (data == nullptr) {
69        std::cout << "invalid data" << std::endl;
70        return 0;
71    }
72
73    /* Validate the length of size */
74    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
75        return 0;
76    }
77
78    char *ch = (char *)malloc(size + 1);
79    if (ch == nullptr) {
80        std::cout << "malloc failed." << std::endl;
81        return 0;
82    }
83
84    (void)memset_s(ch, size + 1, 0x00, size + 1);
85    if (memcpy_s(ch, size + 1, data, size) != EOK) {
86        std::cout << "copy failed." << std::endl;
87        free(ch);
88        ch = nullptr;
89        return 0;
90    }
91
92    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
93    free(ch);
94    ch = nullptr;
95    return 0;
96}