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 "stopserviceextensionability_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "ability_context_impl.h"
22 #include "parcel.h"
23 #include "want.h"
24 #include "securec.h"
25
26 using namespace OHOS::AAFwk;
27 using namespace OHOS::AppExecFwk;
28
29 namespace OHOS {
30 namespace {
31 constexpr size_t FOO_MAX_LEN = 1024;
32 constexpr size_t U32_AT_SIZE = 4;
33 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)34 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
35 {
36 AbilityRuntime::AbilityContextImpl* context = new AbilityRuntime::AbilityContextImpl();
37 int32_t accountId = 100;
38 if (!context) {
39 return false;
40 }
41
42 // fuzz for want
43 Parcel wantParcel;
44 Want* want = nullptr;
45 if (wantParcel.WriteBuffer(data, size)) {
46 want = Want::Unmarshalling(wantParcel);
47 if (want) {
48 context->StopServiceExtensionAbility(*want);
49 context->StopServiceExtensionAbility(*want, accountId);
50 }
51 }
52
53 if (want) {
54 delete want;
55 want = nullptr;
56 }
57
58 return true;
59 }
60 }
61
62 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)63 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
64 {
65 /* Run your code on data */
66 if (data == nullptr) {
67 std::cout << "invalid data" << std::endl;
68 return 0;
69 }
70
71 /* Validate the length of size */
72 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
73 return 0;
74 }
75
76 char* ch = static_cast<char*>(malloc(size + 1));
77 if (ch == nullptr) {
78 std::cout << "malloc failed." << std::endl;
79 return 0;
80 }
81
82 (void)memset_s(ch, size + 1, 0x00, size + 1);
83 if (memcpy_s(ch, size, data, size) != EOK) {
84 std::cout << "copy failed." << std::endl;
85 free(ch);
86 ch = nullptr;
87 return 0;
88 }
89
90 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
91 free(ch);
92 ch = nullptr;
93 return 0;
94 }