// | |
// ip/impl/address_v4.ipp | |
// ~~~~~~~~~~~~~~~~~~~~~~ | |
// | |
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) | |
// | |
// Distributed under the Boost Software License, Version 1.0. (See accompanying | |
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
// | |
#ifndef BOOST_ASIO_IP_IMPL_ADDRESS_V4_IPP | |
#define BOOST_ASIO_IP_IMPL_ADDRESS_V4_IPP | |
#if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
# pragma once | |
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
#include <boost/asio/detail/config.hpp> | |
#include <climits> | |
#include <stdexcept> | |
#include <boost/throw_exception.hpp> | |
#include <boost/asio/error.hpp> | |
#include <boost/asio/detail/socket_ops.hpp> | |
#include <boost/asio/detail/throw_error.hpp> | |
#include <boost/asio/ip/address_v4.hpp> | |
#include <boost/asio/detail/push_options.hpp> | |
namespace boost { | |
namespace asio { | |
namespace ip { | |
address_v4::address_v4(const address_v4::bytes_type& bytes) | |
{ | |
#if UCHAR_MAX > 0xFF | |
if (bytes[0] > 0xFF || bytes[1] > 0xFF | |
|| bytes[2] > 0xFF || bytes[3] > 0xFF) | |
{ | |
std::out_of_range ex("address_v4 from bytes_type"); | |
boost::throw_exception(ex); | |
} | |
#endif // UCHAR_MAX > 0xFF | |
using namespace std; // For memcpy. | |
memcpy(&addr_.s_addr, bytes.elems, 4); | |
} | |
address_v4::address_v4(unsigned long addr) | |
{ | |
#if ULONG_MAX > 0xFFFFFFFF | |
if (addr > 0xFFFFFFFF) | |
{ | |
std::out_of_range ex("address_v4 from unsigned long"); | |
boost::throw_exception(ex); | |
} | |
#endif // ULONG_MAX > 0xFFFFFFFF | |
addr_.s_addr = boost::asio::detail::socket_ops::host_to_network_long(addr); | |
} | |
address_v4::bytes_type address_v4::to_bytes() const | |
{ | |
using namespace std; // For memcpy. | |
bytes_type bytes; | |
memcpy(bytes.elems, &addr_.s_addr, 4); | |
return bytes; | |
} | |
unsigned long address_v4::to_ulong() const | |
{ | |
return boost::asio::detail::socket_ops::network_to_host_long(addr_.s_addr); | |
} | |
std::string address_v4::to_string() const | |
{ | |
boost::system::error_code ec; | |
std::string addr = to_string(ec); | |
boost::asio::detail::throw_error(ec); | |
return addr; | |
} | |
std::string address_v4::to_string(boost::system::error_code& ec) const | |
{ | |
char addr_str[boost::asio::detail::max_addr_v4_str_len]; | |
const char* addr = | |
boost::asio::detail::socket_ops::inet_ntop(AF_INET, &addr_, addr_str, | |
boost::asio::detail::max_addr_v4_str_len, 0, ec); | |
if (addr == 0) | |
return std::string(); | |
return addr; | |
} | |
address_v4 address_v4::from_string(const char* str) | |
{ | |
boost::system::error_code ec; | |
address_v4 addr = from_string(str, ec); | |
boost::asio::detail::throw_error(ec); | |
return addr; | |
} | |
address_v4 address_v4::from_string( | |
const char* str, boost::system::error_code& ec) | |
{ | |
address_v4 tmp; | |
if (boost::asio::detail::socket_ops::inet_pton( | |
AF_INET, str, &tmp.addr_, 0, ec) <= 0) | |
return address_v4(); | |
return tmp; | |
} | |
address_v4 address_v4::from_string(const std::string& str) | |
{ | |
return from_string(str.c_str()); | |
} | |
address_v4 address_v4::from_string( | |
const std::string& str, boost::system::error_code& ec) | |
{ | |
return from_string(str.c_str(), ec); | |
} | |
bool address_v4::is_class_a() const | |
{ | |
return IN_CLASSA(to_ulong()); | |
} | |
bool address_v4::is_class_b() const | |
{ | |
return IN_CLASSB(to_ulong()); | |
} | |
bool address_v4::is_class_c() const | |
{ | |
return IN_CLASSC(to_ulong()); | |
} | |
bool address_v4::is_multicast() const | |
{ | |
return IN_MULTICAST(to_ulong()); | |
} | |
address_v4 address_v4::broadcast(const address_v4& addr, const address_v4& mask) | |
{ | |
return address_v4(addr.to_ulong() | (mask.to_ulong() ^ 0xFFFFFFFF)); | |
} | |
address_v4 address_v4::netmask(const address_v4& addr) | |
{ | |
if (addr.is_class_a()) | |
return address_v4(0xFF000000); | |
if (addr.is_class_b()) | |
return address_v4(0xFFFF0000); | |
if (addr.is_class_c()) | |
return address_v4(0xFFFFFF00); | |
return address_v4(0xFFFFFFFF); | |
} | |
} // namespace ip | |
} // namespace asio | |
} // namespace boost | |
#include <boost/asio/detail/pop_options.hpp> | |
#endif // BOOST_ASIO_IP_IMPL_ADDRESS_V4_IPP |