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 "notifymemorylevel_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "ability_record.h"
22 #include "app_mgr_client.h"
23 #include "parcel.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 } // namespace
DoSomethingInterestingWithMyAPI(const char * data,size_t size)34 bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
35 {
36 std::shared_ptr<AppMgrClient> appMgrClient = std::make_shared<AppMgrClient>();
37 if (!appMgrClient) {
38 return false;
39 }
40 MemoryLevel level = MEMORY_LEVEL_MODERATE;
41 if (appMgrClient->NotifyMemoryLevel(level) != 0) {
42 return false;
43 }
44 return true;
45 }
46 } // namespace OHOS
47 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)48 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
49 {
50 /* Run your code on data */
51 if (data == nullptr) {
52 std::cout << "invalid data" << std::endl;
53 return 0;
54 }
55
56 /* Validate the length of size */
57 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
58 return 0;
59 }
60
61 char *ch = static_cast<char*>(malloc(size + 1));
62 if (ch == nullptr) {
63 std::cout << "malloc failed." << std::endl;
64 return 0;
65 }
66
67 (void)memset_s(ch, size + 1, 0x00, size + 1);
68 if (memcpy_s(ch, size, data, size) != EOK) {
69 std::cout << "copy failed." << std::endl;
70 free(ch);
71 ch = nullptr;
72 return 0;
73 }
74
75 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
76 free(ch);
77 ch = nullptr;
78 return 0;
79 }