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 "abilitymgrrest_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#include "implicit_start_processor.h"
23#include "system_dialog_scheduler.h"
24#undef private
25#include "inner_mission_info.h"
26#include "parcel.h"
27#include "securec.h"
28
29using namespace OHOS::AAFwk;
30using namespace OHOS::AppExecFwk;
31
32namespace OHOS {
33namespace {
34constexpr int INPUT_ZERO = 0;
35constexpr int INPUT_ONE = 1;
36constexpr int INPUT_TWO = 2;
37constexpr int INPUT_THREE = 3;
38constexpr size_t FOO_MAX_LEN = 1024;
39constexpr size_t U32_AT_SIZE = 4;
40constexpr size_t OFFSET_ZERO = 24;
41constexpr size_t OFFSET_ONE = 16;
42constexpr size_t OFFSET_TWO = 8;
43}
44uint32_t GetU32Data(const char* ptr)
45{
46    // convert fuzz input data to an integer
47    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
48        ptr[INPUT_THREE];
49}
50bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
51{
52    int pid = static_cast<int>(GetU32Data(data));
53    std::string bundleName(data, size);
54    Parcel wantParcel;
55    Want* want = nullptr;
56    if (wantParcel.WriteBuffer(data, size)) {
57        want = Want::Unmarshalling(wantParcel);
58    }
59    std::shared_ptr<SystemDialogScheduler> systemDialogScheduler = std::make_shared<SystemDialogScheduler>();
60    std::vector<DialogAppInfo> dialogAppInfos;
61    systemDialogScheduler->GetSelectorParams(dialogAppInfos);
62    InnerMissionInfo innerMissionInfo;
63    innerMissionInfo.ToJsonStr();
64    std::string jsonStr(data, size);
65    innerMissionInfo.FromJsonStr(jsonStr);
66    std::vector<std::string> info;
67    innerMissionInfo.Dump(info);
68    nlohmann::json value;
69    std::string node(data, size);
70    JsonType jsonType = JsonType::STRING;
71    return innerMissionInfo.CheckJsonNode(value, node, jsonType);
72}
73}
74
75/* Fuzzer entry point */
76extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
77{
78    /* Run your code on data */
79    if (data == nullptr) {
80        std::cout << "invalid data" << std::endl;
81        return 0;
82    }
83
84    /* Validate the length of size */
85    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
86        return 0;
87    }
88
89    char* ch = (char*)malloc(size + 1);
90    if (ch == nullptr) {
91        std::cout << "malloc failed." << std::endl;
92        return 0;
93    }
94
95    (void)memset_s(ch, size + 1, 0x00, size + 1);
96    if (memcpy_s(ch, size, data, size) != EOK) {
97        std::cout << "copy failed." << std::endl;
98        free(ch);
99        ch = nullptr;
100        return 0;
101    }
102
103    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
104    free(ch);
105    ch = nullptr;
106    return 0;
107}
108
109