1 /*
2 * Copyright (c) 2023-2024 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 "bundlemgrhost_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "bundle_mgr_host.h"
22 #include "securec.h"
23
24 using namespace OHOS::AppExecFwk;
25 namespace OHOS {
26 constexpr size_t U32_AT_SIZE = 4;
27 constexpr uint32_t CODE_MAX = 170;
28
29
DoSomethingInterestingWithMyAPI(const char * data,size_t size)30 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
31 {
32 for (uint32_t code = 0; code <= CODE_MAX; code++) {
33 MessageParcel datas;
34 std::u16string descriptor = BundleMgrHost::GetDescriptor();
35 datas.WriteInterfaceToken(descriptor);
36 datas.WriteBuffer(data, size);
37 datas.RewindRead(0);
38 MessageParcel reply;
39 MessageOption option;
40 BundleMgrHost bundleMgrHost;
41 bundleMgrHost.OnRemoteRequest(code, datas, reply, option);
42 }
43 return true;
44 }
45 }
46
47 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)48 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
49 {
50 /* Run your code on data */
51 if (data == nullptr) {
52 return 0;
53 }
54
55 if (size < OHOS::U32_AT_SIZE) {
56 return 0;
57 }
58
59 char* ch = static_cast<char*>(malloc(size + 1));
60 if (ch == nullptr) {
61 return 0;
62 }
63
64 (void)memset_s(ch, size + 1, 0x00, size + 1);
65 if (memcpy_s(ch, size, data, size) != EOK) {
66 free(ch);
67 ch = nullptr;
68 return 0;
69 }
70 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
71 free(ch);
72 ch = nullptr;
73 return 0;
74 }