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 <iostream>
20 #include "bundle_manager_callback_proxy.h"
21 #include "bundlemanagercallbackproxy_fuzzer.h"
22 #include "securec.h"
23
24 using namespace OHOS::AppExecFwk;
25
26 namespace OHOS {
27 constexpr size_t U32_AT_SIZE = 4;
28 constexpr size_t MESSAGE_SIZE = 21;
29 constexpr size_t DCAMERA_SHIFT_24 = 24;
30 constexpr size_t DCAMERA_SHIFT_16 = 16;
31 constexpr size_t DCAMERA_SHIFT_8 = 8;
GetU32Data(const char * ptr)32 uint32_t GetU32Data(const char* ptr)
33 {
34 return (ptr[0] << DCAMERA_SHIFT_24) | (ptr[1] << DCAMERA_SHIFT_16) | (ptr[2] << DCAMERA_SHIFT_8) | (ptr[3]);
35 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)36 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
37 {
38 sptr<IRemoteObject> impl = nullptr;
39 BundleManagerCallbackProxy bundleManagerCallbackProxy(impl);
40 const std::string RpcIdResult(data, size);
41 bundleManagerCallbackProxy.OnQueryRpcIdFinished(RpcIdResult);
42 return true;
43 }
44 }
45
46 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)47 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
48 {
49 /* Run your code on data */
50 if (data == nullptr) {
51 return 0;
52 }
53
54 /* Validate the length of size */
55 if (size < OHOS::U32_AT_SIZE) {
56 return 0;
57 }
58
59 char* ch = (char*)malloc(size + 1);
60 if (ch == nullptr) {
61 std::cout << "malloc failed." << std::endl;
62 return 0;
63 }
64
65 (void)memset_s(ch, size + 1, 0x00, size + 1);
66 if (memcpy_s(ch, size + 1, data, size) != EOK) {
67 std::cout << "copy failed." << std::endl;
68 free(ch);
69 ch = nullptr;
70 return 0;
71 }
72
73 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
74 free(ch);
75 ch = nullptr;
76 return 0;
77 }