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 FOO_MAX_LEN = 1024;
27 constexpr size_t U32_AT_SIZE = 4;
28 constexpr size_t DCAMERA_SHIFT_24 = 24;
29 constexpr size_t DCAMERA_SHIFT_16 = 16;
30 constexpr size_t DCAMERA_SHIFT_8 = 8;
31
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 MessageParcel datas;
39 std::u16string descriptor = QuickFixStatusCallbackProxy::GetDescriptor();
40 datas.WriteInterfaceToken(descriptor);
41 datas.WriteBuffer(data, size);
42 datas.RewindRead(0);
43 MessageParcel reply;
44 sptr<IRemoteObject> object = nullptr;
45 QuickFixStatusCallbackProxy quickFixStatusCallbackProxy(object);
46 std::shared_ptr<QuickFixResult> result = nullptr;
47 quickFixStatusCallbackProxy.OnPatchDeployed(result);
48 quickFixStatusCallbackProxy.OnPatchSwitched(result);
49 quickFixStatusCallbackProxy.OnPatchDeleted(result);
50 quickFixStatusCallbackProxy.SendTransactCmd(QuickFixStatusCallbackInterfaceCode::ON_PATCH_DEPLOYED, datas, reply);
51 return true;
52 }
53 }
54
55 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)56 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
57 {
58 /* Run your code on data */
59 if (data == nullptr) {
60 return 0;
61 }
62
63 if (size < OHOS::U32_AT_SIZE) {
64 return 0;
65 }
66
67 /* Validate the length of size */
68 if (size > OHOS::FOO_MAX_LEN) {
69 return 0;
70 }
71
72 char* ch = static_cast<char*>(malloc(size + 1));
73 if (ch == nullptr) {
74 return 0;
75 }
76
77 (void)memset_s(ch, size + 1, 0x00, size + 1);
78 if (memcpy_s(ch, size, data, size) != EOK) {
79 free(ch);
80 ch = nullptr;
81 return 0;
82 }
83 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
84 free(ch);
85 ch = nullptr;
86 return 0;
87 }