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 "stopserviceability_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#include "ability_manager_client.h"
22#include "parcel.h"
23#include "securec.h"
24#include "want.h"
25
26using namespace OHOS::AAFwk;
27using namespace OHOS::AppExecFwk;
28
29namespace OHOS {
30namespace {
31constexpr size_t FOO_MAX_LEN = 1024;
32constexpr size_t U32_AT_SIZE = 4;
33}
34bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
35{
36    auto abilityMgr = AbilityManagerClient::GetInstance();
37    if (!abilityMgr) {
38        return false;
39    }
40
41    // fuzz for want
42    Parcel wantParcel;
43    Want* want = nullptr;
44    if (wantParcel.WriteBuffer(data, size)) {
45        want = Want::Unmarshalling(wantParcel);
46        if (want) {
47            abilityMgr->StopServiceAbility(*want);
48        }
49    }
50
51    if (want) {
52        delete want;
53        want = nullptr;
54    }
55
56    return true;
57}
58}
59
60/* Fuzzer entry point */
61extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
62{
63    /* Run your code on data */
64    if (data == nullptr) {
65        std::cout << "invalid data" << std::endl;
66        return 0;
67    }
68
69    /* Validate the length of size */
70    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
71        return 0;
72    }
73
74    char* ch = (char*)malloc(size + 1);
75    if (ch == nullptr) {
76        std::cout << "malloc failed." << std::endl;
77        return 0;
78    }
79
80    (void)memset_s(ch, size + 1, 0x00, size + 1);
81    if (memcpy_s(ch, size, data, size) != EOK) {
82        std::cout << "copy failed." << std::endl;
83        free(ch);
84        ch = nullptr;
85        return 0;
86    }
87
88    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
89    free(ch);
90    ch = nullptr;
91    return 0;
92}