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