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 #include "verifymanagerhostimplgetfiledir_fuzzer.h"
20 #include "verify_manager_host_impl.h"
21 #include "securec.h"
22
23 using namespace OHOS::AppExecFwk;
24 namespace OHOS {
25 constexpr size_t FOO_MAX_LEN = 1024;
26 constexpr size_t U32_AT_SIZE = 4;
27
DoSomethingInterestingWithMyAPI(const char * data,size_t size)28 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
29 {
30 VerifyManagerHostImpl impl;
31 const std::string sourcePath(data, size);
32 std::string fileDir(data, size);
33 auto ret1 = impl.GetFileDir(sourcePath, fileDir);
34 return true;
35 }
36 }
37
38 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)39 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
40 {
41 /* Run your code on data */
42 if (data == nullptr) {
43 return 0;
44 }
45
46 if (size < OHOS::U32_AT_SIZE) {
47 return 0;
48 }
49
50 /* Validate the length of size */
51 if (size > OHOS::FOO_MAX_LEN) {
52 return 0;
53 }
54
55 char* ch = static_cast<char*>(malloc(size + 1));
56 if (ch == nullptr) {
57 return 0;
58 }
59
60 (void)memset_s(ch, size + 1, 0x00, size + 1);
61 if (memcpy_s(ch, size, data, size) != EOK) {
62 free(ch);
63 ch = nullptr;
64 return 0;
65 }
66 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
67 free(ch);
68 ch = nullptr;
69 return 0;
70 }