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- //
- // ip/address_v4.hpp
- // ~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2021 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_V4_HPP
- #define BOOST_ASIO_IP_ADDRESS_V4_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
- #include <boost/asio/detail/config.hpp>
- #include <string>
- #include <boost/asio/detail/array.hpp>
- #include <boost/asio/detail/cstdint.hpp>
- #include <boost/asio/detail/socket_types.hpp>
- #include <boost/asio/detail/string_view.hpp>
- #include <boost/asio/detail/winsock_init.hpp>
- #include <boost/system/error_code.hpp>
- #if defined(BOOST_ASIO_HAS_STD_HASH)
- # include <functional>
- #endif // defined(BOOST_ASIO_HAS_STD_HASH)
- #if !defined(BOOST_ASIO_NO_IOSTREAM)
- # include <iosfwd>
- #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
- #include <boost/asio/detail/push_options.hpp>
- namespace boost {
- namespace asio {
- namespace ip {
- /// Implements IP version 4 style addresses.
- /**
- * The boost::asio::ip::address_v4 class provides the ability to use and
- * manipulate IP version 4 addresses.
- *
- * @par Thread Safety
- * @e Distinct @e objects: Safe.@n
- * @e Shared @e objects: Unsafe.
- */
- class address_v4
- {
- public:
- /// The type used to represent an address as an unsigned integer.
- typedef uint_least32_t uint_type;
- /// The type used to represent an address as an array of bytes.
- /**
- * @note This type is defined in terms of the C++0x template @c std::array
- * when it is available. Otherwise, it uses @c boost:array.
- */
- #if defined(GENERATING_DOCUMENTATION)
- typedef array<unsigned char, 4> bytes_type;
- #else
- typedef boost::asio::detail::array<unsigned char, 4> bytes_type;
- #endif
- /// Default constructor.
- address_v4() BOOST_ASIO_NOEXCEPT
- {
- addr_.s_addr = 0;
- }
- /// Construct an address from raw bytes.
- BOOST_ASIO_DECL explicit address_v4(const bytes_type& bytes);
- /// Construct an address from an unsigned integer in host byte order.
- BOOST_ASIO_DECL explicit address_v4(uint_type addr);
- /// Copy constructor.
- address_v4(const address_v4& other) BOOST_ASIO_NOEXCEPT
- : addr_(other.addr_)
- {
- }
- #if defined(BOOST_ASIO_HAS_MOVE)
- /// Move constructor.
- address_v4(address_v4&& other) BOOST_ASIO_NOEXCEPT
- : addr_(other.addr_)
- {
- }
- #endif // defined(BOOST_ASIO_HAS_MOVE)
- /// Assign from another address.
- address_v4& operator=(const address_v4& other) BOOST_ASIO_NOEXCEPT
- {
- addr_ = other.addr_;
- return *this;
- }
- #if defined(BOOST_ASIO_HAS_MOVE)
- /// Move-assign from another address.
- address_v4& operator=(address_v4&& other) BOOST_ASIO_NOEXCEPT
- {
- addr_ = other.addr_;
- return *this;
- }
- #endif // defined(BOOST_ASIO_HAS_MOVE)
- /// Get the address in bytes, in network byte order.
- BOOST_ASIO_DECL bytes_type to_bytes() const BOOST_ASIO_NOEXCEPT;
- /// Get the address as an unsigned integer in host byte order
- BOOST_ASIO_DECL uint_type to_uint() const BOOST_ASIO_NOEXCEPT;
- #if !defined(BOOST_ASIO_NO_DEPRECATED)
- /// Get the address as an unsigned long in host byte order
- BOOST_ASIO_DECL unsigned long to_ulong() const;
- #endif // !defined(BOOST_ASIO_NO_DEPRECATED)
- /// Get the address as a string in dotted decimal format.
- BOOST_ASIO_DECL std::string to_string() const;
- #if !defined(BOOST_ASIO_NO_DEPRECATED)
- /// (Deprecated: Use other overload.) Get the address as a string in dotted
- /// decimal format.
- BOOST_ASIO_DECL std::string to_string(boost::system::error_code& ec) const;
- /// (Deprecated: Use make_address_v4().) Create an address from an IP address
- /// string in dotted decimal form.
- static address_v4 from_string(const char* str);
- /// (Deprecated: Use make_address_v4().) Create an address from an IP address
- /// string in dotted decimal form.
- static address_v4 from_string(
- const char* str, boost::system::error_code& ec);
- /// (Deprecated: Use make_address_v4().) Create an address from an IP address
- /// string in dotted decimal form.
- static address_v4 from_string(const std::string& str);
- /// (Deprecated: Use make_address_v4().) Create an address from an IP address
- /// string in dotted decimal form.
- static address_v4 from_string(
- const std::string& str, boost::system::error_code& ec);
- #endif // !defined(BOOST_ASIO_NO_DEPRECATED)
- /// Determine whether the address is a loopback address.
- BOOST_ASIO_DECL bool is_loopback() const BOOST_ASIO_NOEXCEPT;
- /// Determine whether the address is unspecified.
- BOOST_ASIO_DECL bool is_unspecified() const BOOST_ASIO_NOEXCEPT;
- #if !defined(BOOST_ASIO_NO_DEPRECATED)
- /// (Deprecated: Use network_v4 class.) Determine whether the address is a
- /// class A address.
- BOOST_ASIO_DECL bool is_class_a() const;
- /// (Deprecated: Use network_v4 class.) Determine whether the address is a
- /// class B address.
- BOOST_ASIO_DECL bool is_class_b() const;
- /// (Deprecated: Use network_v4 class.) Determine whether the address is a
- /// class C address.
- BOOST_ASIO_DECL bool is_class_c() const;
- #endif // !defined(BOOST_ASIO_NO_DEPRECATED)
- /// Determine whether the address is a multicast address.
- BOOST_ASIO_DECL bool is_multicast() const BOOST_ASIO_NOEXCEPT;
- /// Compare two addresses for equality.
- friend bool operator==(const address_v4& a1,
- const address_v4& a2) BOOST_ASIO_NOEXCEPT
- {
- return a1.addr_.s_addr == a2.addr_.s_addr;
- }
- /// Compare two addresses for inequality.
- friend bool operator!=(const address_v4& a1,
- const address_v4& a2) BOOST_ASIO_NOEXCEPT
- {
- return a1.addr_.s_addr != a2.addr_.s_addr;
- }
- /// Compare addresses for ordering.
- friend bool operator<(const address_v4& a1,
- const address_v4& a2) BOOST_ASIO_NOEXCEPT
- {
- return a1.to_uint() < a2.to_uint();
- }
- /// Compare addresses for ordering.
- friend bool operator>(const address_v4& a1,
- const address_v4& a2) BOOST_ASIO_NOEXCEPT
- {
- return a1.to_uint() > a2.to_uint();
- }
- /// Compare addresses for ordering.
- friend bool operator<=(const address_v4& a1,
- const address_v4& a2) BOOST_ASIO_NOEXCEPT
- {
- return a1.to_uint() <= a2.to_uint();
- }
- /// Compare addresses for ordering.
- friend bool operator>=(const address_v4& a1,
- const address_v4& a2) BOOST_ASIO_NOEXCEPT
- {
- return a1.to_uint() >= a2.to_uint();
- }
- /// Obtain an address object that represents any address.
- static address_v4 any() BOOST_ASIO_NOEXCEPT
- {
- return address_v4();
- }
- /// Obtain an address object that represents the loopback address.
- static address_v4 loopback() BOOST_ASIO_NOEXCEPT
- {
- return address_v4(0x7F000001);
- }
- /// Obtain an address object that represents the broadcast address.
- static address_v4 broadcast() BOOST_ASIO_NOEXCEPT
- {
- return address_v4(0xFFFFFFFF);
- }
- #if !defined(BOOST_ASIO_NO_DEPRECATED)
- /// (Deprecated: Use network_v4 class.) Obtain an address object that
- /// represents the broadcast address that corresponds to the specified
- /// address and netmask.
- BOOST_ASIO_DECL static address_v4 broadcast(
- const address_v4& addr, const address_v4& mask);
- /// (Deprecated: Use network_v4 class.) Obtain the netmask that corresponds
- /// to the address, based on its address class.
- BOOST_ASIO_DECL static address_v4 netmask(const address_v4& addr);
- #endif // !defined(BOOST_ASIO_NO_DEPRECATED)
- private:
- // The underlying IPv4 address.
- boost::asio::detail::in4_addr_type addr_;
- };
- /// Create an IPv4 address from raw bytes in network order.
- /**
- * @relates address_v4
- */
- inline address_v4 make_address_v4(const address_v4::bytes_type& bytes)
- {
- return address_v4(bytes);
- }
- /// Create an IPv4 address from an unsigned integer in host byte order.
- /**
- * @relates address_v4
- */
- inline address_v4 make_address_v4(address_v4::uint_type addr)
- {
- return address_v4(addr);
- }
- /// Create an IPv4 address from an IP address string in dotted decimal form.
- /**
- * @relates address_v4
- */
- BOOST_ASIO_DECL address_v4 make_address_v4(const char* str);
- /// Create an IPv4 address from an IP address string in dotted decimal form.
- /**
- * @relates address_v4
- */
- BOOST_ASIO_DECL address_v4 make_address_v4(const char* str,
- boost::system::error_code& ec) BOOST_ASIO_NOEXCEPT;
- /// Create an IPv4 address from an IP address string in dotted decimal form.
- /**
- * @relates address_v4
- */
- BOOST_ASIO_DECL address_v4 make_address_v4(const std::string& str);
- /// Create an IPv4 address from an IP address string in dotted decimal form.
- /**
- * @relates address_v4
- */
- BOOST_ASIO_DECL address_v4 make_address_v4(const std::string& str,
- boost::system::error_code& ec) BOOST_ASIO_NOEXCEPT;
- #if defined(BOOST_ASIO_HAS_STRING_VIEW) \
- || defined(GENERATING_DOCUMENTATION)
- /// Create an IPv4 address from an IP address string in dotted decimal form.
- /**
- * @relates address_v4
- */
- BOOST_ASIO_DECL address_v4 make_address_v4(string_view str);
- /// Create an IPv4 address from an IP address string in dotted decimal form.
- /**
- * @relates address_v4
- */
- BOOST_ASIO_DECL address_v4 make_address_v4(string_view str,
- boost::system::error_code& ec) BOOST_ASIO_NOEXCEPT;
- #endif // defined(BOOST_ASIO_HAS_STRING_VIEW)
- // || defined(GENERATING_DOCUMENTATION)
- #if !defined(BOOST_ASIO_NO_IOSTREAM)
- /// 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_v4
- */
- template <typename Elem, typename Traits>
- std::basic_ostream<Elem, Traits>& operator<<(
- std::basic_ostream<Elem, Traits>& os, const address_v4& addr);
- #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
- } // namespace ip
- } // namespace asio
- } // namespace boost
- #if defined(BOOST_ASIO_HAS_STD_HASH)
- namespace std {
- template <>
- struct hash<boost::asio::ip::address_v4>
- {
- std::size_t operator()(const boost::asio::ip::address_v4& addr)
- const BOOST_ASIO_NOEXCEPT
- {
- return std::hash<unsigned int>()(addr.to_uint());
- }
- };
- } // namespace std
- #endif // defined(BOOST_ASIO_HAS_STD_HASH)
- #include <boost/asio/detail/pop_options.hpp>
- #include <boost/asio/ip/impl/address_v4.hpp>
- #if defined(BOOST_ASIO_HEADER_ONLY)
- # include <boost/asio/ip/impl/address_v4.ipp>
- #endif // defined(BOOST_ASIO_HEADER_ONLY)
- #endif // BOOST_ASIO_IP_ADDRESS_V4_HPP
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