1 /* 2 * Copyright (C) 2021 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 #pragma once 18 19 #include <string> 20 #include <vector> 21 22 #include <stdint.h> 23 24 namespace android { 25 namespace base { 26 27 // Converts binary data into a hexString. 28 // 29 // Hex values are printed in order, e.g. 0xDEAD will result in 'adde' because 30 // Android is little-endian. 31 std::string HexString(const void* bytes, size_t len); 32 33 // Converts hexString to binary data. 34 // 35 // hex: Input hexString 36 // bytes: Output binary data 37 // 38 // Returns true on success, false on failure 39 bool HexToBytes(const std::string& hex, std::vector<uint8_t>* bytes); 40 41 } // namespace base 42 } // namespace android 43