1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "components/apdu/apdu_response.h"
9 #include "base/numerics/safe_conversions.h"
14 base::Optional<ApduResponse> ApduResponse::CreateFromMessage(
15 base::span<const uint8_t> data) {
16 // Invalid message size, data is appended by status byte.
20 uint16_t status_bytes = data[data.size() - 2] << 8;
21 status_bytes |= data[data.size() - 1];
23 return ApduResponse(std::vector<uint8_t>(data.begin(), data.end() - 2),
24 static_cast<Status>(status_bytes));
27 ApduResponse::ApduResponse(std::vector<uint8_t> data, Status response_status)
28 : data_(std::move(data)), response_status_(response_status) {}
30 ApduResponse::ApduResponse(ApduResponse&& that) = default;
32 ApduResponse& ApduResponse::operator=(ApduResponse&& that) = default;
34 ApduResponse::~ApduResponse() = default;
36 std::vector<uint8_t> ApduResponse::GetEncodedResponse() const {
37 std::vector<uint8_t> encoded_response = data_;
38 encoded_response.push_back(
39 base::strict_cast<uint16_t>(response_status_) >> 8 & 0xff);
40 encoded_response.push_back(base::strict_cast<uint16_t>(response_status_) &
42 return encoded_response;