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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 "basebundleinstallerprocessbundleuninstall_fuzzer.h"
20 #include "base_bundle_installer.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         BaseBundleInstaller basebundleinstall;
31         std::string bundleName = "";
32         std::string modulePackage = "";
33         InstallParam installParam;
34         int32_t uid = 0;
35         basebundleinstall.ProcessBundleUninstall(bundleName, installParam, uid);
36         basebundleinstall.ProcessBundleUninstall(bundleName, modulePackage, installParam, uid);
37         return true;
38     }
39 }
40 
41 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)42 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
43 {
44     /* Run your code on data */
45     if (data == nullptr) {
46         return 0;
47     }
48 
49     if (size < OHOS::U32_AT_SIZE) {
50         return 0;
51     }
52 
53     /* Validate the length of size */
54     if (size > OHOS::FOO_MAX_LEN) {
55         return 0;
56     }
57 
58     char *ch = static_cast<char *>(malloc(size + 1));
59     if (ch == nullptr) {
60         return 0;
61     }
62 
63     (void)memset_s(ch, size + 1, 0x00, size + 1);
64     if (memcpy_s(ch, size, data, size) != EOK) {
65         free(ch);
66         ch = nullptr;
67         return 0;
68     }
69     OHOS::DoSomethingInterestingWithMyAPI(ch, size);
70     free(ch);
71     ch = nullptr;
72     return 0;
73 }