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 "wantsecond_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20#include <iostream>
21
22#define private public
23#include "want.h"
24#undef private
25#include "securec.h"
26
27using namespace OHOS::AAFwk;
28
29namespace OHOS {
30namespace {
31constexpr size_t FOO_MAX_LEN = 1024;
32constexpr size_t U32_AT_SIZE = 4;
33}
34uint32_t GetU32Data(const char* ptr)
35{
36    // convert fuzz input data to an integer
37    return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
38}
39bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
40{
41    std::shared_ptr<Want> want = std::make_shared<Want>();
42    std::string type(data, size);
43    want->SetType(type);
44    want->FormatType(type);
45    Uri uri(type);
46    want->SetUri(uri);
47    want->SetUriAndType(uri, type);
48    want->FormatUri(uri);
49    want->FormatUri(type);
50    char* charUri;
51    want->WantParseUri(charUri);
52    want->GetLowerCaseScheme(uri);
53    want->FormatUriAndType(uri, type);
54    want->FormatMimeType(type);
55    return true;
56}
57}
58
59/* Fuzzer entry point */
60extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
61{
62    /* Run your code on data */
63    if (data == nullptr) {
64        std::cout << "invalid data" << std::endl;
65        return 0;
66    }
67
68    /* Validate the length of size */
69    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
70        return 0;
71    }
72
73    char* ch = reinterpret_cast<char *>(malloc(size + 1));
74    if (ch == nullptr) {
75        std::cout << "malloc failed." << std::endl;
76        return 0;
77    }
78
79    (void)memset_s(ch, size + 1, 0x00, size + 1);
80    if (memcpy_s(ch, size, data, size) != EOK) {
81        std::cout << "copy failed." << std::endl;
82        free(ch);
83        ch = nullptr;
84        return 0;
85    }
86
87    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
88    free(ch);
89    ch = nullptr;
90    return 0;
91}
92