249 lines
7.4 KiB
C++
249 lines
7.4 KiB
C++
//
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// ip/address_v6.hpp
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// ~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_IP_ADDRESS_V6_HPP
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#define BOOST_ASIO_IP_ADDRESS_V6_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#include <string>
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#include <boost/asio/detail/array.hpp>
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#include <boost/asio/detail/socket_types.hpp>
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#include <boost/asio/detail/winsock_init.hpp>
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#include <boost/system/error_code.hpp>
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#include <boost/asio/ip/address_v4.hpp>
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#if !defined(BOOST_ASIO_NO_IOSTREAM)
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# include <iosfwd>
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#endif // !defined(BOOST_ASIO_NO_IOSTREAM)
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace ip {
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/// Implements IP version 6 style addresses.
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/**
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* The boost::asio::ip::address_v6 class provides the ability to use and
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* manipulate IP version 6 addresses.
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*
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* @par Thread Safety
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* @e Distinct @e objects: Safe.@n
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* @e Shared @e objects: Unsafe.
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*/
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class address_v6
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{
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public:
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/// The type used to represent an address as an array of bytes.
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/**
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* @note This type is defined in terms of the C++0x template @c std::array
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* when it is available. Otherwise, it uses @c boost:array.
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*/
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#if defined(GENERATING_DOCUMENTATION)
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typedef array<unsigned char, 16> bytes_type;
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#else
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typedef boost::asio::detail::array<unsigned char, 16> bytes_type;
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#endif
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/// Default constructor.
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BOOST_ASIO_DECL address_v6();
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/// Construct an address from raw bytes and scope ID.
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BOOST_ASIO_DECL explicit address_v6(const bytes_type& bytes,
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unsigned long scope_id = 0);
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/// Copy constructor.
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BOOST_ASIO_DECL address_v6(const address_v6& other);
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#if defined(BOOST_ASIO_HAS_MOVE)
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/// Move constructor.
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BOOST_ASIO_DECL address_v6(address_v6&& other);
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#endif // defined(BOOST_ASIO_HAS_MOVE)
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/// Assign from another address.
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BOOST_ASIO_DECL address_v6& operator=(const address_v6& other);
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#if defined(BOOST_ASIO_HAS_MOVE)
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/// Move-assign from another address.
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BOOST_ASIO_DECL address_v6& operator=(address_v6&& other);
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#endif // defined(BOOST_ASIO_HAS_MOVE)
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/// The scope ID of the address.
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/**
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* Returns the scope ID associated with the IPv6 address.
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*/
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unsigned long scope_id() const
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{
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return scope_id_;
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}
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/// The scope ID of the address.
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/**
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* Modifies the scope ID associated with the IPv6 address.
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*/
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void scope_id(unsigned long id)
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{
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scope_id_ = id;
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}
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/// Get the address in bytes, in network byte order.
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BOOST_ASIO_DECL bytes_type to_bytes() const;
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/// Get the address as a string.
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BOOST_ASIO_DECL std::string to_string() const;
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/// Get the address as a string.
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BOOST_ASIO_DECL std::string to_string(boost::system::error_code& ec) const;
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/// Create an address from an IP address string.
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BOOST_ASIO_DECL static address_v6 from_string(const char* str);
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/// Create an address from an IP address string.
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BOOST_ASIO_DECL static address_v6 from_string(
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const char* str, boost::system::error_code& ec);
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/// Create an address from an IP address string.
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BOOST_ASIO_DECL static address_v6 from_string(const std::string& str);
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/// Create an address from an IP address string.
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BOOST_ASIO_DECL static address_v6 from_string(
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const std::string& str, boost::system::error_code& ec);
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/// Converts an IPv4-mapped or IPv4-compatible address to an IPv4 address.
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BOOST_ASIO_DECL address_v4 to_v4() const;
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/// Determine whether the address is a loopback address.
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BOOST_ASIO_DECL bool is_loopback() const;
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/// Determine whether the address is unspecified.
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BOOST_ASIO_DECL bool is_unspecified() const;
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/// Determine whether the address is link local.
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BOOST_ASIO_DECL bool is_link_local() const;
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/// Determine whether the address is site local.
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BOOST_ASIO_DECL bool is_site_local() const;
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/// Determine whether the address is a mapped IPv4 address.
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BOOST_ASIO_DECL bool is_v4_mapped() const;
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/// Determine whether the address is an IPv4-compatible address.
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BOOST_ASIO_DECL bool is_v4_compatible() const;
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/// Determine whether the address is a multicast address.
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BOOST_ASIO_DECL bool is_multicast() const;
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/// Determine whether the address is a global multicast address.
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BOOST_ASIO_DECL bool is_multicast_global() const;
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/// Determine whether the address is a link-local multicast address.
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BOOST_ASIO_DECL bool is_multicast_link_local() const;
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/// Determine whether the address is a node-local multicast address.
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BOOST_ASIO_DECL bool is_multicast_node_local() const;
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/// Determine whether the address is a org-local multicast address.
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BOOST_ASIO_DECL bool is_multicast_org_local() const;
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/// Determine whether the address is a site-local multicast address.
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BOOST_ASIO_DECL bool is_multicast_site_local() const;
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/// Compare two addresses for equality.
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BOOST_ASIO_DECL friend bool operator==(
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const address_v6& a1, const address_v6& a2);
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/// Compare two addresses for inequality.
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friend bool operator!=(const address_v6& a1, const address_v6& a2)
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{
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return !(a1 == a2);
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}
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/// Compare addresses for ordering.
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BOOST_ASIO_DECL friend bool operator<(
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const address_v6& a1, const address_v6& a2);
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/// Compare addresses for ordering.
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friend bool operator>(const address_v6& a1, const address_v6& a2)
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{
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return a2 < a1;
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}
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/// Compare addresses for ordering.
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friend bool operator<=(const address_v6& a1, const address_v6& a2)
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{
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return !(a2 < a1);
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}
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/// Compare addresses for ordering.
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friend bool operator>=(const address_v6& a1, const address_v6& a2)
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{
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return !(a1 < a2);
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}
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/// Obtain an address object that represents any address.
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static address_v6 any()
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{
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return address_v6();
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}
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/// Obtain an address object that represents the loopback address.
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BOOST_ASIO_DECL static address_v6 loopback();
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/// Create an IPv4-mapped IPv6 address.
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BOOST_ASIO_DECL static address_v6 v4_mapped(const address_v4& addr);
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/// Create an IPv4-compatible IPv6 address.
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BOOST_ASIO_DECL static address_v6 v4_compatible(const address_v4& addr);
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private:
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// The underlying IPv6 address.
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boost::asio::detail::in6_addr_type addr_;
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// The scope ID associated with the address.
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unsigned long scope_id_;
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};
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#if !defined(BOOST_ASIO_NO_IOSTREAM)
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/// Output an address as a string.
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/**
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* Used to output a human-readable string for a specified address.
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*
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* @param os The output stream to which the string will be written.
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*
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* @param addr The address to be written.
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*
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* @return The output stream.
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*
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* @relates boost::asio::ip::address_v6
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*/
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template <typename Elem, typename Traits>
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std::basic_ostream<Elem, Traits>& operator<<(
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std::basic_ostream<Elem, Traits>& os, const address_v6& addr);
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#endif // !defined(BOOST_ASIO_NO_IOSTREAM)
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} // namespace ip
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#include <boost/asio/ip/impl/address_v6.hpp>
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#if defined(BOOST_ASIO_HEADER_ONLY)
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# include <boost/asio/ip/impl/address_v6.ipp>
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#endif // defined(BOOST_ASIO_HEADER_ONLY)
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#endif // BOOST_ASIO_IP_ADDRESS_V6_HPP
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