| // |
| // address.hpp |
| // ~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2008 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_ADDRESS_HPP |
| #define BOOST_ASIO_IP_ADDRESS_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| #include <iosfwd> |
| #include <string> |
| #include <boost/throw_exception.hpp> |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #include <boost/asio/error.hpp> |
| #include <boost/asio/ip/address_v4.hpp> |
| #include <boost/asio/ip/address_v6.hpp> |
| #include <boost/asio/detail/throw_error.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace ip { |
| |
| /// Implements version-independent IP addresses. |
| /** |
| * The boost::asio::ip::address class provides the ability to use either IP |
| * version 4 or version 6 addresses. |
| * |
| * @par Thread Safety |
| * @e Distinct @e objects: Safe.@n |
| * @e Shared @e objects: Unsafe. |
| */ |
| class address |
| { |
| public: |
| /// Default constructor. |
| address() |
| : type_(ipv4), |
| ipv4_address_(), |
| ipv6_address_() |
| { |
| } |
| |
| /// Construct an address from an IPv4 address. |
| address(const boost::asio::ip::address_v4& ipv4_address) |
| : type_(ipv4), |
| ipv4_address_(ipv4_address), |
| ipv6_address_() |
| { |
| } |
| |
| /// Construct an address from an IPv6 address. |
| address(const boost::asio::ip::address_v6& ipv6_address) |
| : type_(ipv6), |
| ipv4_address_(), |
| ipv6_address_(ipv6_address) |
| { |
| } |
| |
| /// Copy constructor. |
| address(const address& other) |
| : type_(other.type_), |
| ipv4_address_(other.ipv4_address_), |
| ipv6_address_(other.ipv6_address_) |
| { |
| } |
| |
| /// Assign from another address. |
| address& operator=(const address& other) |
| { |
| type_ = other.type_; |
| ipv4_address_ = other.ipv4_address_; |
| ipv6_address_ = other.ipv6_address_; |
| return *this; |
| } |
| |
| /// Assign from an IPv4 address. |
| address& operator=(const boost::asio::ip::address_v4& ipv4_address) |
| { |
| type_ = ipv4; |
| ipv4_address_ = ipv4_address; |
| ipv6_address_ = boost::asio::ip::address_v6(); |
| return *this; |
| } |
| |
| /// Assign from an IPv6 address. |
| address& operator=(const boost::asio::ip::address_v6& ipv6_address) |
| { |
| type_ = ipv6; |
| ipv4_address_ = boost::asio::ip::address_v4(); |
| ipv6_address_ = ipv6_address; |
| return *this; |
| } |
| |
| /// Get whether the address is an IP version 4 address. |
| bool is_v4() const |
| { |
| return type_ == ipv4; |
| } |
| |
| /// Get whether the address is an IP version 6 address. |
| bool is_v6() const |
| { |
| return type_ == ipv6; |
| } |
| |
| /// Get the address as an IP version 4 address. |
| boost::asio::ip::address_v4 to_v4() const |
| { |
| if (type_ != ipv4) |
| { |
| boost::system::system_error e( |
| boost::asio::error::address_family_not_supported); |
| boost::throw_exception(e); |
| } |
| return ipv4_address_; |
| } |
| |
| /// Get the address as an IP version 6 address. |
| boost::asio::ip::address_v6 to_v6() const |
| { |
| if (type_ != ipv6) |
| { |
| boost::system::system_error e( |
| boost::asio::error::address_family_not_supported); |
| boost::throw_exception(e); |
| } |
| return ipv6_address_; |
| } |
| |
| /// Get the address as a string in dotted decimal format. |
| std::string to_string() const |
| { |
| if (type_ == ipv6) |
| return ipv6_address_.to_string(); |
| return ipv4_address_.to_string(); |
| } |
| |
| /// Get the address as a string in dotted decimal format. |
| std::string to_string(boost::system::error_code& ec) const |
| { |
| if (type_ == ipv6) |
| return ipv6_address_.to_string(ec); |
| return ipv4_address_.to_string(ec); |
| } |
| |
| /// Create an address from an IPv4 address string in dotted decimal form, |
| /// or from an IPv6 address in hexadecimal notation. |
| static address from_string(const char* str) |
| { |
| boost::system::error_code ec; |
| address addr = from_string(str, ec); |
| boost::asio::detail::throw_error(ec); |
| return addr; |
| } |
| |
| /// Create an address from an IPv4 address string in dotted decimal form, |
| /// or from an IPv6 address in hexadecimal notation. |
| static address from_string(const char* str, boost::system::error_code& ec) |
| { |
| boost::asio::ip::address_v6 ipv6_address = |
| boost::asio::ip::address_v6::from_string(str, ec); |
| if (!ec) |
| { |
| address tmp; |
| tmp.type_ = ipv6; |
| tmp.ipv6_address_ = ipv6_address; |
| return tmp; |
| } |
| |
| boost::asio::ip::address_v4 ipv4_address = |
| boost::asio::ip::address_v4::from_string(str, ec); |
| if (!ec) |
| { |
| address tmp; |
| tmp.type_ = ipv4; |
| tmp.ipv4_address_ = ipv4_address; |
| return tmp; |
| } |
| |
| return address(); |
| } |
| |
| /// Create an address from an IPv4 address string in dotted decimal form, |
| /// or from an IPv6 address in hexadecimal notation. |
| static address from_string(const std::string& str) |
| { |
| return from_string(str.c_str()); |
| } |
| |
| /// Create an address from an IPv4 address string in dotted decimal form, |
| /// or from an IPv6 address in hexadecimal notation. |
| static address from_string(const std::string& str, |
| boost::system::error_code& ec) |
| { |
| return from_string(str.c_str(), ec); |
| } |
| |
| /// Compare two addresses for equality. |
| friend bool operator==(const address& a1, const address& a2) |
| { |
| if (a1.type_ != a2.type_) |
| return false; |
| if (a1.type_ == ipv6) |
| return a1.ipv6_address_ == a2.ipv6_address_; |
| return a1.ipv4_address_ == a2.ipv4_address_; |
| } |
| |
| /// Compare two addresses for inequality. |
| friend bool operator!=(const address& a1, const address& a2) |
| { |
| if (a1.type_ != a2.type_) |
| return true; |
| if (a1.type_ == ipv6) |
| return a1.ipv6_address_ != a2.ipv6_address_; |
| return a1.ipv4_address_ != a2.ipv4_address_; |
| } |
| |
| /// Compare addresses for ordering. |
| friend bool operator<(const address& a1, const address& a2) |
| { |
| if (a1.type_ < a2.type_) |
| return true; |
| if (a1.type_ > a2.type_) |
| return false; |
| if (a1.type_ == ipv6) |
| return a1.ipv6_address_ < a2.ipv6_address_; |
| return a1.ipv4_address_ < a2.ipv4_address_; |
| } |
| |
| private: |
| // The type of the address. |
| enum { ipv4, ipv6 } type_; |
| |
| // The underlying IPv4 address. |
| boost::asio::ip::address_v4 ipv4_address_; |
| |
| // The underlying IPv6 address. |
| boost::asio::ip::address_v6 ipv6_address_; |
| }; |
| |
| /// Output an address as a string. |
| /** |
| * Used to output a human-readable string for a specified address. |
| * |
| * @param os The output stream to which the string will be written. |
| * |
| * @param addr The address to be written. |
| * |
| * @return The output stream. |
| * |
| * @relates boost::asio::ip::address |
| */ |
| template <typename Elem, typename Traits> |
| std::basic_ostream<Elem, Traits>& operator<<( |
| std::basic_ostream<Elem, Traits>& os, const address& addr) |
| { |
| os << addr.to_string(); |
| return os; |
| } |
| |
| } // namespace ip |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // BOOST_ASIO_IP_ADDRESS_HPP |