1 /*
2 * Copyright (c) 2022 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 "formbmshelper_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_bms_helper.h"
24 #undef private
25 #undef protected
26 #include "securec.h"
27
28 using namespace OHOS::AppExecFwk;
29
30 namespace OHOS {
31 constexpr size_t U32_AT_SIZE = 4;
GetU32Data(const char * ptr)32 uint32_t GetU32Data(const char* ptr)
33 {
34 // convert fuzz input data to an integer
35 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
36 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)37 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
38 {
39 FormBmsHelper formBmsHelper;
40 sptr<IBundleMgr> bundleManager = nullptr;
41 formBmsHelper.SetBundleManager(bundleManager);
42 std::string bundleName(data, size);
43 std::string moduleName(data, size);
44 formBmsHelper.NotifyModuleRemovable(bundleName, moduleName);
45 formBmsHelper.NotifyModuleNotRemovable(bundleName, moduleName);
46 formBmsHelper.GenerateModuleKey(bundleName, moduleName);
47 int32_t userId = static_cast<int32_t>(GetU32Data(data));
48 BundleInfo bundleInfo;
49 formBmsHelper.GetBundleInfo(bundleName, userId, bundleInfo);
50 formBmsHelper.GetUidByBundleName(bundleName, userId);
51 return true;
52 }
53 }
54
55 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)56 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
57 {
58 /* Run your code on data */
59 if (data == nullptr) {
60 return 0;
61 }
62
63 if (size < OHOS::U32_AT_SIZE) {
64 return 0;
65 }
66
67 char* ch = reinterpret_cast<char *>(malloc(size + 1));
68 if (ch == nullptr) {
69 return 0;
70 }
71
72 (void)memset_s(ch, size + 1, 0x00, size + 1);
73 if (memcpy_s(ch, size + 1, data, size) != EOK) {
74 free(ch);
75 ch = nullptr;
76 return 0;
77 }
78
79 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
80 free(ch);
81 ch = nullptr;
82 return 0;
83 }
84
85