1 /*
2 * Copyright (c) 2022 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 "formproviderproxy_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_provider_proxy.h"
24 #undef private
25 #undef protected
26 #include "securec.h"
27
28 using namespace OHOS::AppExecFwk;
29
30 namespace OHOS {
31 constexpr size_t U32_AT_SIZE = 4;
GetU32Data(const char * ptr)32 uint32_t GetU32Data(const char* ptr)
33 {
34 // convert fuzz input data to an integer
35 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
36 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)37 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
38 {
39 sptr<IRemoteObject> impl = nullptr;
40 FormProviderProxy formProviderProxy(impl);
41 Want want;
42 sptr<IRemoteObject> callerToken = nullptr;
43 int64_t formId = static_cast<int64_t>(GetU32Data(data));
44 formProviderProxy.NotifyFormDelete(formId, want, callerToken);
45 std::vector<int64_t> formIds;
46 formIds.emplace_back(formId);
47 formProviderProxy.NotifyFormsDelete(formIds, want, callerToken);
48 formProviderProxy.NotifyFormUpdate(formId, want, callerToken);
49 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
50 formProviderProxy.EventNotify(formIds, formVisibleType, want, callerToken);
51 formProviderProxy.NotifyFormCastTempForm(formId, want, callerToken);
52 std::string message(data, size);
53 formProviderProxy.FireFormEvent(formId, message, want, callerToken);
54 Want wantArg;
55 std::string provider(data, size);
56 formProviderProxy.AcquireState(wantArg, provider, want, callerToken);
57 std::string remoteDeviceId(data, size);
58 sptr<IRemoteObject> formSupplyCallback = nullptr;
59 int64_t requestCode = static_cast<int64_t>(GetU32Data(data));
60 return formProviderProxy.AcquireShareFormData(formId, remoteDeviceId, formSupplyCallback, requestCode);
61 }
62 }
63
64 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)65 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
66 {
67 /* Run your code on data */
68 if (data == nullptr) {
69 return 0;
70 }
71
72 if (size < OHOS::U32_AT_SIZE) {
73 return 0;
74 }
75
76 char* ch = static_cast<char*>(malloc(size + 1));
77 if (ch == nullptr) {
78 return 0;
79 }
80
81 (void)memset_s(ch, size + 1, 0x00, size + 1);
82 if (memcpy_s(ch, size + 1, data, size) != EOK) {
83 free(ch);
84 ch = nullptr;
85 return 0;
86 }
87
88 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
89 free(ch);
90 ch = nullptr;
91 return 0;
92 }
93
94