| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <cstddef> |
| #include <cstdint> |
| #include <cstdio> |
| #include <cstring> |
| |
| void TriggerBufferOverflow(const uint8_t *data, size_t size) { |
| if (size >= 3 && data[0] == 'F' && data[1] == 'U' && data[2] == 'Z' && |
| data[size] == 'Z') { |
| fprintf(stderr, "BUFFER OVERFLOW!\n"); |
| } |
| } |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { |
| uint8_t *data_copy = new uint8_t[size]; |
| memcpy(data_copy, data, size); |
| TriggerBufferOverflow(data_copy, size); |
| delete[] data_copy; |
| return 0; |
| } |