| // Copyright 2020 The Pigweed Authors |
| // |
| // 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 "pw_kvs/checksum.h" |
| |
| #include <cstring> |
| |
| namespace pw::kvs { |
| |
| using std::byte; |
| |
| Status ChecksumAlgorithm::Verify(std::span<const byte> checksum) const { |
| if (checksum.size() < size_bytes()) { |
| return Status::InvalidArgument(); |
| } |
| if (std::memcmp(state_.data(), checksum.data(), size_bytes()) != 0) { |
| return Status::DataLoss(); |
| } |
| return OkStatus(); |
| } |
| |
| } // namespace pw::kvs |
