1 /*
2 * Copyright 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <fuzzer/FuzzedDataProvider.h>
18 #include "osi/include/future.h"
19
20 #define MAX_BUFFER_SIZE 8
21
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)22 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size) {
23 // Init our wrapper
24 FuzzedDataProvider dataProvider(Data, Size);
25
26 // The value of this result ptr shouldn't matter, but make a buffer to be safe
27 size_t buf_size =
28 dataProvider.ConsumeIntegralInRange<size_t>(1, MAX_BUFFER_SIZE);
29 void* buf = malloc(buf_size);
30 if (buf == nullptr) {
31 return 0;
32 }
33 std::vector<uint8_t> bytes = dataProvider.ConsumeBytes<uint8_t>(buf_size);
34 memcpy(buf, bytes.data(), bytes.size());
35
36 // Is our future an immediate?
37 future_t* future = nullptr;
38 bool is_immediate = dataProvider.ConsumeBool();
39 if (is_immediate) {
40 future = future_new_immediate(buf);
41 } else {
42 future = future_new();
43 }
44
45 // These functions require a non-null object, according to the header
46 if (future != nullptr) {
47 // If we need to, specify that the future is ready
48 if (!is_immediate) {
49 future_ready(future, buf);
50 }
51
52 // Free the object
53 future_await(future);
54 }
55
56 free(buf);
57 return 0;
58 }
59