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 "hcfmdcreate_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <string>
21
22 #include "blob.h"
23 #include "md.h"
24 #include "result.h"
25
26 namespace OHOS {
27 static const int TEST_DATA_LEN = 12;
28
TestMd(void)29 static void TestMd(void)
30 {
31 HcfMd *mdObj = nullptr;
32 HcfResult res = HcfMdCreate("SHA1", &mdObj);
33 if (res != HCF_SUCCESS) {
34 return;
35 }
36 char testData[] = "My test data";
37 uint32_t testDataLen = TEST_DATA_LEN;
38 HcfBlob inBlob = {.data = reinterpret_cast<uint8_t *>(testData), .len = testDataLen};
39 (void)mdObj->update(mdObj, &inBlob);
40 HcfBlob outBlob = { 0 };
41 (void)mdObj->doFinal(mdObj, &outBlob);
42 (void)mdObj->getAlgoName(mdObj);
43 (void)mdObj->getMdLength(mdObj);
44 HcfBlobDataClearAndFree(&outBlob);
45 HcfObjDestroy(mdObj);
46 }
47
HcMdCreateFuzzTest(const uint8_t * data,size_t size)48 bool HcMdCreateFuzzTest(const uint8_t* data, size_t size)
49 {
50 TestMd();
51 HcfMd *mdObj = nullptr;
52 std::string alg(reinterpret_cast<const char *>(data), size);
53 HcfResult res = HcfMdCreate(alg.c_str(), &mdObj);
54 if (res != HCF_SUCCESS) {
55 return false;
56 }
57 HcfObjDestroy(mdObj);
58 return true;
59 }
60 }
61
62 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)63 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
64 {
65 /* Run your code on data */
66 OHOS::HcMdCreateFuzzTest(data, size);
67 return 0;
68 }
69