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 #define private public
17 #include <cstddef>
18 #include <cstdint>
19
20 #include "app_service_fwk/app_service_fwk_installer.h"
21
22 #include "appservicefwkinstalleruninstalllowerversion_fuzzer.h"
23 #include "securec.h"
24
25 using namespace OHOS::AppExecFwk;
26 namespace OHOS {
27 constexpr size_t FOO_MAX_LEN = 1024;
28 constexpr size_t U32_AT_SIZE = 4;
29
DoSomethingInterestingWithMyAPI(const char * data,size_t size)30 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
31 {
32 AppServiceFwkInstaller appServiceFwk;
33 std::vector<std::string> moduleNameList { std::string(data, size) };
34 appServiceFwk.UninstallLowerVersion(moduleNameList);
35 return true;
36 }
37 }
38
39 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)40 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
41 {
42 /* Run your code on data */
43 if (data == nullptr) {
44 return 0;
45 }
46
47 if (size < OHOS::U32_AT_SIZE) {
48 return 0;
49 }
50
51 /* Validate the length of size */
52 if (size > OHOS::FOO_MAX_LEN) {
53 return 0;
54 }
55
56 char* ch = static_cast<char*>(malloc(size + 1));
57 if (ch == nullptr) {
58 return 0;
59 }
60
61 (void)memset_s(ch, size + 1, 0x00, size + 1);
62 if (memcpy_s(ch, size, data, size) != EOK) {
63 free(ch);
64 ch = nullptr;
65 return 0;
66 }
67 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
68 free(ch);
69 ch = nullptr;
70 return 0;
71 }