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 "usbmgrusbfunctionstostring_fuzzer.h"
17
18 #include "usb_srv_client.h"
19 #include "usb_errors.h"
20
21 namespace {
22 const int32_t MAX_FUNC_NUM = 6;
23 }
24
25 namespace OHOS {
26 namespace USB {
UsbMgrUsbFunctionsToStringFuzzTest(const uint8_t * data,size_t size)27 bool UsbMgrUsbFunctionsToStringFuzzTest(const uint8_t* data, size_t size)
28 {
29 if (data == nullptr || size < sizeof(int32_t)) {
30 return false;
31 }
32 auto &usbSrvClient = UsbSrvClient::GetInstance();
33 int32_t func = *reinterpret_cast<const int32_t *>(data);
34 if (func <= MAX_FUNC_NUM) {
35 func += MAX_FUNC_NUM;
36 }
37
38 if (usbSrvClient.UsbFunctionsToString(func) != "") {
39 return false;
40 }
41
42 return true;
43 }
44 } // USB
45 } // OHOS
46
47 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)48 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
49 {
50 /* Run your code on data */
51 OHOS::USB::UsbMgrUsbFunctionsToStringFuzzTest(data, size);
52 return 0;
53 }
54
55