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 "quickfixstatuscallbackproxy_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #define private public
21 #include "quick_fix_status_callback_proxy.h"
22 #include "securec.h"
23
24 using namespace OHOS::AppExecFwk;
25 namespace OHOS {
26 constexpr size_t U32_AT_SIZE = 4;
27 constexpr size_t DCAMERA_SHIFT_24 = 24;
28 constexpr size_t DCAMERA_SHIFT_16 = 16;
29 constexpr size_t DCAMERA_SHIFT_8 = 8;
30
GetU32Data(const char * ptr)31 uint32_t GetU32Data(const char* ptr)
32 {
33 return (ptr[0] << DCAMERA_SHIFT_24) | (ptr[1] << DCAMERA_SHIFT_16) | (ptr[2] << DCAMERA_SHIFT_8) | (ptr[3]);
34 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)35 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
36 {
37 MessageParcel datas;
38 std::u16string descriptor = QuickFixStatusCallbackProxy::GetDescriptor();
39 datas.WriteInterfaceToken(descriptor);
40 datas.WriteBuffer(data, size);
41 datas.RewindRead(0);
42 MessageParcel reply;
43 sptr<IRemoteObject> object = nullptr;
44 QuickFixStatusCallbackProxy quickFixStatusCallbackProxy(object);
45 std::shared_ptr<QuickFixResult> result = nullptr;
46 quickFixStatusCallbackProxy.OnPatchDeployed(result);
47 quickFixStatusCallbackProxy.OnPatchSwitched(result);
48 quickFixStatusCallbackProxy.OnPatchDeleted(result);
49 quickFixStatusCallbackProxy.SendTransactCmd(QuickFixStatusCallbackInterfaceCode::ON_PATCH_DEPLOYED, datas, reply);
50 return true;
51 }
52 }
53
54 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)55 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
56 {
57 /* Run your code on data */
58 if (data == nullptr) {
59 return 0;
60 }
61
62 if (size < OHOS::U32_AT_SIZE) {
63 return 0;
64 }
65
66 char* ch = static_cast<char*>(malloc(size + 1));
67 if (ch == nullptr) {
68 return 0;
69 }
70
71 (void)memset_s(ch, size + 1, 0x00, size + 1);
72 if (memcpy_s(ch, size, data, size) != EOK) {
73 free(ch);
74 ch = nullptr;
75 return 0;
76 }
77 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
78 free(ch);
79 ch = nullptr;
80 return 0;
81 }