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 "minimizeability_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#include "ability_manager_client.h"
22#include "ability_record.h"
23
24using namespace OHOS::AAFwk;
25using namespace OHOS::AppExecFwk;
26
27namespace OHOS {
28namespace {
29constexpr size_t FOO_MAX_LEN = 1024;
30constexpr size_t U32_AT_SIZE = 4;
31} // namespace
32sptr<Token> GetFuzzAbilityToken()
33{
34    sptr<Token> token = nullptr;
35
36    AbilityRequest abilityRequest;
37    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
38    abilityRequest.abilityInfo.name = "MainAbility";
39    abilityRequest.abilityInfo.type = AbilityType::DATA;
40    std::shared_ptr<AbilityRecord> abilityRecord =
41        AbilityRecord::CreateAbilityRecord(abilityRequest);
42    if (abilityRecord) {
43        token = abilityRecord->GetToken();
44    }
45
46    return token;
47}
48bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
49{
50    auto abilitymgr = AbilityManagerClient::GetInstance();
51    bool fromUser = true;
52    if (!abilitymgr) {
53        return false;
54    }
55    // get token
56    sptr<IRemoteObject> token = GetFuzzAbilityToken();
57    if (!token) {
58        std::cout << "Get ability token failed." << std::endl;
59        return false;
60    }
61    if (abilitymgr->MinimizeAbility(token, fromUser) != 0) {
62        return false;
63    }
64
65    return true;
66}
67} // namespace OHOS
68
69/* Fuzzer entry point */
70extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
71{
72    /* Run your code on data */
73    if (data == nullptr) {
74        std::cout << "invalid data" << std::endl;
75        return 0;
76    }
77    /* Validate the length of size */
78    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
79        return 0;
80    }
81    char *ch = (char *)malloc(size + 1);
82    if (ch == nullptr) {
83        std::cout << "malloc failed." << std::endl;
84        return 0;
85    }
86    (void)memset_s(ch, size + 1, 0x00, size + 1);
87    if (memcpy_s(ch, size, data, size) != EOK) {
88        std::cout << "copy failed." << std::endl;
89        free(ch);
90        ch = nullptr;
91        return 0;
92    }
93    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
94    free(ch);
95    ch = nullptr;
96    return 0;
97}