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 "quickfixdeleter_fuzzer.h"
18
19 #include <cstddef>
20 #include <cstdint>
21 #include <iostream>
22
23 #include "quick_fix_deleter.h"
24 #include "securec.h"
25
26 using namespace OHOS::AppExecFwk;
27
28 namespace OHOS {
29
30 constexpr size_t FOO_MAX_LEN = 1024;
31 constexpr size_t U32_AT_SIZE = 4;
32 constexpr size_t MESSAGE_SIZE = 21;
33 constexpr size_t DCAMERA_SHIFT_24 = 24;
34 constexpr size_t DCAMERA_SHIFT_16 = 16;
35 constexpr size_t DCAMERA_SHIFT_8 = 8;
GetU32Data(const char * ptr)36 uint32_t GetU32Data(const char* ptr)
37 {
38 return (ptr[0] << DCAMERA_SHIFT_24) | (ptr[1] << DCAMERA_SHIFT_16) | (ptr[2] << DCAMERA_SHIFT_8) | (ptr[3]);
39 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)40 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
41 {
42 std::string bundleName(data, size);
43 QuickFixDeleter quickFixDeleter(bundleName);
44 quickFixDeleter.Execute();
45 quickFixDeleter.DeleteQuickFix();
46 InnerAppQuickFix innerAppQuickFix;
47 quickFixDeleter.ToDeletePatchDir(innerAppQuickFix);
48 AppqfInfo appqfInfo;
49 quickFixDeleter.InnerDeletePatchDir(appqfInfo, bundleName);
50 quickFixDeleter.GetQuickFixDataMgr();
51 quickFixDeleter.GetDataMgr();
52 quickFixDeleter.RemoveDeployingInfo(bundleName);
53 return true;
54 }
55 } // namespace OHOS
56
57 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)58 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
59 {
60 /* Run your code on data */
61 if (data == nullptr) {
62 return 0;
63 }
64
65 /* Validate the length of size */
66 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
67 return 0;
68 }
69
70 char* ch = (char*)malloc(size + 1);
71 if (ch == nullptr) {
72 std::cout << "malloc failed." << std::endl;
73 return 0;
74 }
75
76 (void)memset_s(ch, size + 1, 0x00, size + 1);
77 if (memcpy_s(ch, size + 1, data, size) != EOK) {
78 std::cout << "copy failed." << std::endl;
79 free(ch);
80 ch = nullptr;
81 return 0;
82 }
83
84 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
85 free(ch);
86 ch = nullptr;
87 return 0;
88 }