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 #include "wallpaper_service.h"
17 #include "onremoveduser_fuzzer.h"
18
19 using namespace OHOS::WallpaperMgrService;
20 namespace OHOS {
21 WallpaperMgrService WallpaperMgrService;
22 constexpr size_t THRESHOLD = 4;
ConverToInt32(const uint8_t *ptr, size_t size)23 int32_t ConverToInt32(const uint8_t *ptr, size_t size)
24 {
25 if (ptr == nullptr || (size < sizeof(int32_t))) {
26 return 0;
27 }
28 uint32_t bigVar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
29 if (bigVar < 0) {
30 return 0;
31 }
32 return bigVar;
33 }
34
OnRemovedUserFuzzTest(const uint8_t *data, size_t size)35 void OnRemovedUserFuzzTest(const uint8_t *data, size_t size)
36 {
37 int32_t userId = ConverToInt32(data, size);
38 WallpaperMgrService.OnRemovedUser(userId);
39 }
40
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)41 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
42 {
43 if (size < THRESHOLD) {
44 return 0;
45 }
46 OHOS::OnRemovedUserFuzzTest(data, size);
47 return 0;
48 }
49 } // namespace OHOS
50