1 /*
2 * Copyright (c) 2023 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 "JdwpReadStream_fuzzer.h"
17 #include <uv.h>
18
19 namespace Hdc {
20 class HdcJdwpFuzzer : public HdcJdwp {
21 public:
HdcJdwpFuzzer(uv_loop_t * loop)22 explicit HdcJdwpFuzzer(uv_loop_t *loop) : HdcJdwp(loop) {}
23
Instance(uv_loop_t * loop)24 static std::unique_ptr<HdcJdwpFuzzer> Instance(uv_loop_t *loop)
25 {
26 std::unique_ptr<HdcJdwpFuzzer> jdwp = std::make_unique<HdcJdwpFuzzer>(loop);
27 return jdwp;
28 }
29 };
30
FuzzJdwpReadStream(const uint8_t * data,size_t size)31 bool FuzzJdwpReadStream(const uint8_t *data, size_t size)
32 {
33 uv_loop_t loop;
34 uv_loop_init(&loop);
35 auto jdwp = HdcJdwpFuzzer::Instance(&loop);
36 if (jdwp == nullptr) {
37 WRITE_LOG(LOG_FATAL, "FuzzJdwpReadStream jdwp is null");
38 return false;
39 }
40 HdcJdwp::HCtxJdwp ctx = (HdcJdwp::HCtxJdwp)jdwp->MallocContext();
41 if (ctx == nullptr) {
42 WRITE_LOG(LOG_FATAL, "FuzzJdwpReadStream ctx is null");
43 return false;
44 }
45 ctx->finish = true;
46 uv_pipe_t pipe;
47 pipe.data = ctx;
48 uv_stream_t *stream = (uv_stream_t *)&pipe;
49 uv_buf_t rbf = uv_buf_init(reinterpret_cast<char *>(const_cast<uint8_t *>(data)), size);
50 jdwp->ReadStream(stream, (ssize_t)size, &rbf);
51 delete ctx;
52 uv_stop(&loop);
53 uv_loop_close(&loop);
54 return true;
55 }
56 } // namespace Hdc
57
58 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)59 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
60 {
61 /* Run your code on data */
62 Hdc::FuzzJdwpReadStream(data, size);
63 return 0;
64 }
65