source: source/ariba/utility/addressing/mac_address.hpp @ 7468

#ifndef MAC_ADDRESS_HPP_
#define MAC_ADDRESS_HPP_

#include "detail/address_convenience.hpp"

#include "ariba/config.h"
#include<string>
#include<cassert>
#include<stdio.h>
#include<boost/tr1/functional.hpp>
#ifdef HAVE_LIBBLUETOOTH
#include<bluetooth/bluetooth.h>
#endif

namespace ariba {
namespace addressing {

struct mac_address_info {
        static const uint16_t type_id;
        static const std::string type_name;
};

/**
 * TODO: Doc
 *
 * @author Sebastian Mies <mies@tm.uka.de>
 */
template<class AddressInfo = mac_address_info>
class mac_address_tpl: public detail::address_convenience<mac_address_tpl<AddressInfo> > {
private:
        uint8_t mac[6];

public:
        mac_address_tpl() {
                for (int i = 0; i < 6; i++)
                        mac[i] = 0;
        }

        mac_address_tpl( const mac_address_tpl& copy ) {
                assign(copy);
        }

        mac_address_tpl(const std::string& text) {
                assign(text);
        }

        mac_address_tpl(const char* text) {
                assign(std::string(text));
        }

        mac_address_tpl(const uint8_t* bytes, size_t size) {
                assign(bytes, size);
        }

        //--- compare operations --------------------------------------------------

        /// implements comparison operators
        int compare_to(const mac_address_tpl& rhs) const {
                size_t i = 0;
                while (rhs.mac[i] == mac[i] && i < 6)
                        i++;
                return (6 - i);
        }

        //--- bytes representation ------------------------------------------------

        /// returns true, if this address has a fixed size in bytes
        bool is_bytes_size_static() const {
                return true;
        }

        /// returns the number of bytes used for serialization of this address
        size_t to_bytes_size() const {
                return 6;
        }

        /// converts this address to a binary representation
        void to_bytes(uint8_t* bytes) const {
                for (size_t i = 0; i < 6; i++)
                        bytes[i] = mac[i];
        }

        /// Assigns an address using a bunch of bytes
        bool assign(const uint8_t* bytes, size_t size) {
                assert(size==6);
                for (size_t i = 0; i < 6; i++)
                        mac[i] = bytes[i];
                return false;
        }

        //--- string representation -----------------------------------------------

        /// convert address to a string that can be used to reconstruct the address
        std::string to_string() const {
                char str[80];
                sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
                                mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
                return std::string(str);
        }

        /// Assigns an address using a human-readable
        bool assign(const std::string& text) {
                unsigned int mac_[6];
                sscanf(text.c_str(), "%x:%x:%x:%x:%x:%x", &mac_[0], &mac_[1], &mac_[2],
                                &mac_[3], &mac_[4], &mac_[5]);
                for (size_t i = 0; i < 6; i++)
                        mac[i] = (uint8_t) mac_[i];
                return false;
        }

        //--- assignment ----------------------------------------------------------

        /// Assigns an address
        bool assign(const mac_address_tpl& rhs) {
                for (size_t i = 0; i < 6; i++)
                        mac[i] = rhs.mac[i];
                return false;
        }

        //--- address info --------------------------------------------------------

        const std::string& type_name() const {
                return AddressInfo::type_name;
        }

        const uint16_t type_id() const {
                return AddressInfo::type_id;
        }

        //--- conversion ----------------------------------------------------------
#ifdef HAVE_LIBBLUETOOTH

        bdaddr_t bluetooth() const {
                bdaddr_t addr;
                for (size_t i=0; i<6; i++) addr.b[i] = mac[5-i];
                return addr;
        }

        void bluetooth( bdaddr_t addr ) {
                for (size_t i=0; i<6; i++) mac[i] = addr.b[5-i];
        }
#endif
};

typedef mac_address_tpl<> mac_address;

}} // namespace ariba::addressing

namespace boost {

template<class T>
struct hash<ariba::addressing::mac_address_tpl<T> >: public std::unary_function<ariba::addressing::mac_address_tpl<T>, std::size_t> {
        std::size_t operator()(const ariba::addressing::mac_address_tpl<T>& ep) const {
                return hash_value(ep.to_string());
        }
};

}


#endif /* MAC_ADDRESS_HPP_ */