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      1 /******************************************************************************
      2  *
      3  *  Copyright 2017 The Android Open Source Project
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 #pragma once
     20 
     21 #include <string>
     22 
     23 /** Bluetooth Address */
     24 class RawAddress final {
     25  public:
     26   static constexpr unsigned int kLength = 6;
     27 
     28   uint8_t address[kLength];
     29 
     30   RawAddress() = default;
     31   RawAddress(const uint8_t (&addr)[6]);
     32 
     33   bool operator<(const RawAddress& rhs) const {
     34     return (std::memcmp(address, rhs.address, sizeof(address)) < 0);
     35   }
     36   bool operator==(const RawAddress& rhs) const {
     37     return (std::memcmp(address, rhs.address, sizeof(address)) == 0);
     38   }
     39   bool operator>(const RawAddress& rhs) const { return (rhs < *this); }
     40   bool operator<=(const RawAddress& rhs) const { return !(*this > rhs); }
     41   bool operator>=(const RawAddress& rhs) const { return !(*this < rhs); }
     42   bool operator!=(const RawAddress& rhs) const { return !(*this == rhs); }
     43 
     44   bool IsEmpty() const { return *this == kEmpty; }
     45 
     46   std::string ToString() const;
     47 
     48   // Converts |string| to RawAddress and places it in |to|. If |from| does
     49   // not represent a Bluetooth address, |to| is not modified and this function
     50   // returns false. Otherwise, it returns true.
     51   static bool FromString(const std::string& from, RawAddress& to);
     52 
     53   // Copies |from| raw Bluetooth address octets to the local object.
     54   // Returns the number of copied octets - should be always RawAddress::kLength
     55   size_t FromOctets(const uint8_t* from);
     56 
     57   static bool IsValidAddress(const std::string& address);
     58 
     59   static const RawAddress kEmpty;  // 00:00:00:00:00:00
     60   static const RawAddress kAny;    // FF:FF:FF:FF:FF:FF
     61 };
     62 
     63 inline std::ostream& operator<<(std::ostream& os, const RawAddress& a) {
     64   os << a.ToString();
     65   return os;
     66 }
     67