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 "printservice_fuzzer.h"
17
18#include "print_constant.h"
19#include "print_log.h"
20#include "print_service_ability.h"
21
22namespace OHOS {
23namespace Print {
24    constexpr size_t FOO_MAX_LEN = 1024;
25    constexpr size_t U32_AT_SIZE = 4;
26    const std::u16string PRINT_SERVICE_INTERFACE_TOKEN = u"OHOS.Print.IPrintService";
27
28    bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
29    {
30        for (uint32_t code = CMD_START_PRINT; code <= CMD_NOTIFY_PRINT_SERVICE; ++code) {
31            MessageParcel datas;
32            datas.WriteInterfaceToken(PRINT_SERVICE_INTERFACE_TOKEN);
33            datas.WriteBuffer(data, size);
34            datas.RewindRead(0);
35            MessageParcel reply;
36            MessageOption option;
37            PrintServiceAbility::GetInstance()->OnRemoteRequest(code, datas, reply, option);
38        }
39        return true;
40    }
41}
42}
43
44/* Fuzzer entry point */
45extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
46{
47    /* Run your code on data */
48    if (data == nullptr) {
49        return 0;
50    }
51
52    if (size < OHOS::Print::U32_AT_SIZE) {
53        return 0;
54    }
55
56    /* Validate the length of size */
57    if (size == 0 || size > OHOS::Print::FOO_MAX_LEN) {
58        return 0;
59    }
60
61    char* ch = (char *)malloc(size + 1);
62    if (ch == nullptr) {
63        return 0;
64    }
65
66    (void)memset_s(ch, size + 1, 0x00, size + 1);
67    if (memcpy_s(ch, size + 1, data, size) != EOK) {
68        free(ch);
69        ch = nullptr;
70        return 0;
71    }
72
73    OHOS::Print::DoSomethingInterestingWithMyAPI(ch, size);
74    free(ch);
75    ch = nullptr;
76    return 0;
77}
78
79