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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* MACAddress.cpp
* A MAC address
* Copyright (C) 2013 Peter Newman
*/
#include "ola/network/MACAddress.h"
#if HAVE_CONFIG_H
#include <config.h>
#endif // HAVE_CONFIG_H
#ifdef _WIN32
#include <ola/win/CleanWinSock2.h>
struct ether_addr {
unsigned char octet[ola::network::MACAddress::LENGTH];
};
#define ether_addr_octet octet
#else
#include <sys/types.h> // required for FreeBSD uchar - doesn't hurt others
#ifdef HAVE_NET_ETHERNET_H
#include <net/ethernet.h>
#endif // HAVE_NET_ETHERNET_H
// NetBSD and OpenBSD don't have net/ethernet.h
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif // HAVE_SYS_SOCKET_H
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif // HAVE_NET_IF_H
#ifdef HAVE_NET_IF_ETHER_H
#include <net/if_ether.h>
#endif // HAVE_NET_IF_ETHER_H
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif // HAVE_NETINET_IN_H
#ifdef HAVE_NET_IF_ARP_H
#include <net/if_arp.h>
#endif // HAVE_NET_IF_ARP_H
#ifdef HAVE_NETINET_IF_ETHER_H
#include <netinet/if_ether.h>
#endif // HAVE_NETINET_IF_ETHER_H
#endif // _WIN32
#if defined(__FreeBSD__) || defined(__DragonFly__)
// In the FreeBSD struct ether_addr, the single field is named octet, instead
// of ether_addr_octet.
// OS X does this too, but avoids it by adding the following line to its
// header, for compatibility with linux and others:
// http://www.opensource.apple.com/source/xnu/xnu-1456.1.26/bsd/net/ethernet.h
#define ether_addr_octet octet
#endif // defined(__FreeBSD__) || defined(__DragonFly__)
#include <assert.h>
#include <string.h>
#include <iomanip>
#include <string>
#include <vector>
#include "ola/network/NetworkUtils.h"
#include "ola/StringUtils.h"
namespace ola {
namespace network {
using std::string;
using std::vector;
MACAddress::MACAddress() {
memset(m_address, 0, LENGTH);
}
MACAddress::MACAddress(const uint8_t *address) {
memcpy(m_address, address, LENGTH);
}
MACAddress::MACAddress(const MACAddress &other) {
memcpy(m_address, other.m_address, LENGTH);
}
MACAddress& MACAddress::operator=(const MACAddress &other) {
if (this != &other) {
memcpy(m_address, other.m_address, LENGTH);
}
return *this;
}
bool MACAddress::operator==(const MACAddress &other) const {
return (memcmp(m_address, other.m_address, LENGTH) == 0);
}
bool MACAddress::operator<(const MACAddress &other) const {
return (memcmp(m_address, other.m_address, LENGTH) < 0);
}
bool MACAddress::operator>(const MACAddress &other) const {
return (memcmp(m_address, other.m_address, LENGTH) > 0);
}
void MACAddress::Get(uint8_t ptr[LENGTH]) const {
memcpy(ptr, m_address, LENGTH);
}
string MACAddress::ToString() const {
/**
* ether_ntoa_r doesn't exist on Mac, so can't use it; ether_ntoa isn't
* thread safe
*/
std::ostringstream str;
for (unsigned int i = 0 ; i < MACAddress::LENGTH; i++) {
if (i != 0)
str << ":";
str << std::hex << std::setfill('0') << std::setw(2) <<
static_cast<int>(m_address[i]);
}
return str.str();
}
/**
* Convert a string to a ether_addr struct
* @param address a string in the form 'nn:nn:nn:nn:nn:nn' or
* 'nn.nn.nn.nn.nn.nn'
* @param target a pointer to a ether_addr struct
* @return true if it worked, false otherwise
*/
bool StringToEther(const string &address, ether_addr *target) {
/**
* ether_aton_r doesn't exist on Mac, so can't use it (also it might not
* handle dots as well as colons as separators)
*/
vector<string> tokens;
ola::StringSplit(address, &tokens, ":.");
if (tokens.size() != MACAddress::LENGTH) {
return false;
}
for (unsigned int i = 0; i < MACAddress::LENGTH; i++) {
if (!ola::HexStringToInt(tokens[i], target->ether_addr_octet + i)) {
return false;
}
}
return true;
}
MACAddress* MACAddress::FromString(const string &address) {
struct ether_addr addr;
if (!StringToEther(address, &addr)) {
return NULL;
}
return new MACAddress(addr.ether_addr_octet);
}
bool MACAddress::FromString(const string &address, MACAddress *target) {
struct ether_addr addr;
if (!StringToEther(address, &addr)) {
return false;
}
*target = MACAddress(addr.ether_addr_octet);
return true;
}
MACAddress MACAddress::FromStringOrDie(const string &address) {
struct ether_addr addr;
assert(StringToEther(address, &addr));
return MACAddress(addr.ether_addr_octet);
}
} // namespace network
} // namespace ola
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