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 "checkheader_fuzzer.h"
17 #include "libpandafile/file.h"
18
19 namespace OHOS {
CheckHeaderFuzzTest(const uint8_t * data,size_t size)20 void CheckHeaderFuzzTest(const uint8_t *data, size_t size)
21 {
22 // Write data into a temp file
23 const char *filename = "__ChechHeaderFuzzTest_data.tmp";
24 FILE *fp = fopen(filename, "w+");
25 if (fp == nullptr) {
26 return;
27 }
28 (void)fwrite(data, sizeof(uint8_t), size, fp);
29 (void)fseek(fp, 0, SEEK_SET);
30
31 auto file = panda::os::file::File(fileno(fp));
32 panda::os::mem::ConstBytePtr ptr =
33 panda::os::mem::MapFile(file, panda::os::mem::MMAP_PROT_READ,
34 panda::os::mem::MMAP_FLAG_PRIVATE, size, 0).ToConst();
35 panda::panda_file::CheckHeader(ptr, filename);
36 (void)fclose(fp);
37 (void)remove(filename);
38 }
39 } // namespace OHOS
40
41 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)42 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
43 {
44 /* Run your code on data */
45 OHOS::CheckHeaderFuzzTest(data, size);
46 return 0;
47 }
48