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 "registerabilitylifecyclecallback_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#include "ability_lifecycle_callback.h"
22#include "application_context.h"
23#include "securec.h"
24
25using namespace OHOS::AAFwk;
26using namespace OHOS::AppExecFwk;
27using namespace OHOS::AbilityRuntime;
28
29namespace OHOS {
30namespace {
31constexpr size_t FOO_MAX_LEN = 1024;
32constexpr size_t U32_AT_SIZE = 4;
33} // namespace
34class AbilityLifecycleCallbackFuzz : public AbilityLifecycleCallback {
35public:
36    explicit AbilityLifecycleCallbackFuzz(){};
37    virtual ~AbilityLifecycleCallbackFuzz(){};
38    void
39    OnAbilityCreate(const std::shared_ptr<NativeReference> &ability) override{};
40    void OnWindowStageCreate(
41        const std::shared_ptr<NativeReference> &ability,
42        const std::shared_ptr<NativeReference> &windowStage) override{};
43    void OnWindowStageDestroy(
44        const std::shared_ptr<NativeReference> &ability,
45        const std::shared_ptr<NativeReference> &windowStage) override{};
46    void OnWindowStageActive(
47        const std::shared_ptr<NativeReference> &ability,
48        const std::shared_ptr<NativeReference> &windowStage) override{};
49    void OnWindowStageInactive(
50        const std::shared_ptr<NativeReference> &ability,
51        const std::shared_ptr<NativeReference> &windowStage) override{};
52    void
53    OnAbilityDestroy(const std::shared_ptr<NativeReference> &ability) override{};
54    void OnAbilityForeground(
55        const std::shared_ptr<NativeReference> &ability) override{};
56    void OnAbilityBackground(
57        const std::shared_ptr<NativeReference> &ability) override{};
58    void
59    OnAbilityContinue(const std::shared_ptr<NativeReference> &ability) override{};
60};
61bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
62{
63    auto context = ApplicationContext::GetInstance();
64    if (!context) {
65        return false;
66    }
67    std::shared_ptr<AbilityLifecycleCallbackFuzz> callback;
68    context->RegisterAbilityLifecycleCallback(callback);
69    return true;
70}
71} // namespace OHOS
72
73/* Fuzzer entry point */
74extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
75{
76    /* Run your code on data */
77    if (data == nullptr) {
78        std::cout << "invalid data" << std::endl;
79        return 0;
80    }
81    /* Validate the length of size */
82    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
83        return 0;
84    }
85    char *ch = (char *)malloc(size + 1);
86    if (ch == nullptr) {
87        std::cout << "malloc failed." << std::endl;
88        return 0;
89    }
90    (void)memset_s(ch, size + 1, 0x00, size + 1);
91    if (memcpy_s(ch, size, data, size) != EOK) {
92        std::cout << "copy failed." << std::endl;
93        free(ch);
94        ch = nullptr;
95        return 0;
96    }
97    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
98    free(ch);
99    ch = nullptr;
100    return 0;
101}