Chris@16: //
Chris@16: // ip/address_v4.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_IP_ADDRESS_V4_HPP
Chris@16: #define BOOST_ASIO_IP_ADDRESS_V4_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: #include <string>
Chris@16: #include <boost/asio/detail/array.hpp>
Chris@16: #include <boost/asio/detail/socket_types.hpp>
Chris@16: #include <boost/asio/detail/winsock_init.hpp>
Chris@16: #include <boost/system/error_code.hpp>
Chris@16: 
Chris@16: #if !defined(BOOST_ASIO_NO_IOSTREAM)
Chris@16: # include <iosfwd>
Chris@16: #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace ip {
Chris@16: 
Chris@16: /// Implements IP version 4 style addresses.
Chris@16: /**
Chris@16:  * The boost::asio::ip::address_v4 class provides the ability to use and
Chris@16:  * manipulate IP version 4 addresses.
Chris@16:  *
Chris@16:  * @par Thread Safety
Chris@16:  * @e Distinct @e objects: Safe.@n
Chris@16:  * @e Shared @e objects: Unsafe.
Chris@16:  */
Chris@16: class address_v4
Chris@16: {
Chris@16: public:
Chris@16:   /// The type used to represent an address as an array of bytes.
Chris@16:   /**
Chris@16:    * @note This type is defined in terms of the C++0x template @c std::array
Chris@16:    * when it is available. Otherwise, it uses @c boost:array.
Chris@16:    */
Chris@16: #if defined(GENERATING_DOCUMENTATION)
Chris@16:   typedef array<unsigned char, 4> bytes_type;
Chris@16: #else
Chris@16:   typedef boost::asio::detail::array<unsigned char, 4> bytes_type;
Chris@16: #endif
Chris@16: 
Chris@16:   /// Default constructor.
Chris@16:   address_v4()
Chris@16:   {
Chris@16:     addr_.s_addr = 0;
Chris@16:   }
Chris@16: 
Chris@16:   /// Construct an address from raw bytes.
Chris@16:   BOOST_ASIO_DECL explicit address_v4(const bytes_type& bytes);
Chris@16: 
Chris@16:   /// Construct an address from a unsigned long in host byte order.
Chris@16:   BOOST_ASIO_DECL explicit address_v4(unsigned long addr);
Chris@16: 
Chris@16:   /// Copy constructor.
Chris@16:   address_v4(const address_v4& other)
Chris@16:     : addr_(other.addr_)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_MOVE)
Chris@16:   /// Move constructor.
Chris@16:   address_v4(address_v4&& other)
Chris@16:     : addr_(other.addr_)
Chris@16:   {
Chris@16:   }
Chris@16: #endif // defined(BOOST_ASIO_HAS_MOVE)
Chris@16: 
Chris@16:   /// Assign from another address.
Chris@16:   address_v4& operator=(const address_v4& other)
Chris@16:   {
Chris@16:     addr_ = other.addr_;
Chris@16:     return *this;
Chris@16:   }
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_MOVE)
Chris@16:   /// Move-assign from another address.
Chris@16:   address_v4& operator=(address_v4&& other)
Chris@16:   {
Chris@16:     addr_ = other.addr_;
Chris@16:     return *this;
Chris@16:   }
Chris@16: #endif // defined(BOOST_ASIO_HAS_MOVE)
Chris@16: 
Chris@16:   /// Get the address in bytes, in network byte order.
Chris@16:   BOOST_ASIO_DECL bytes_type to_bytes() const;
Chris@16: 
Chris@16:   /// Get the address as an unsigned long in host byte order
Chris@16:   BOOST_ASIO_DECL unsigned long to_ulong() const;
Chris@16: 
Chris@16:   /// Get the address as a string in dotted decimal format.
Chris@16:   BOOST_ASIO_DECL std::string to_string() const;
Chris@16: 
Chris@16:   /// Get the address as a string in dotted decimal format.
Chris@16:   BOOST_ASIO_DECL std::string to_string(boost::system::error_code& ec) const;
Chris@16: 
Chris@16:   /// Create an address from an IP address string in dotted decimal form.
Chris@16:   BOOST_ASIO_DECL static address_v4 from_string(const char* str);
Chris@16: 
Chris@16:   /// Create an address from an IP address string in dotted decimal form.
Chris@16:   BOOST_ASIO_DECL static address_v4 from_string(
Chris@16:       const char* str, boost::system::error_code& ec);
Chris@16: 
Chris@16:   /// Create an address from an IP address string in dotted decimal form.
Chris@16:   BOOST_ASIO_DECL static address_v4 from_string(const std::string& str);
Chris@16: 
Chris@16:   /// Create an address from an IP address string in dotted decimal form.
Chris@16:   BOOST_ASIO_DECL static address_v4 from_string(
Chris@16:       const std::string& str, boost::system::error_code& ec);
Chris@16: 
Chris@16:   /// Determine whether the address is a loopback address.
Chris@16:   BOOST_ASIO_DECL bool is_loopback() const;
Chris@16: 
Chris@16:   /// Determine whether the address is unspecified.
Chris@16:   BOOST_ASIO_DECL bool is_unspecified() const;
Chris@16: 
Chris@16:   /// Determine whether the address is a class A address.
Chris@16:   BOOST_ASIO_DECL bool is_class_a() const;
Chris@16: 
Chris@16:   /// Determine whether the address is a class B address.
Chris@16:   BOOST_ASIO_DECL bool is_class_b() const;
Chris@16: 
Chris@16:   /// Determine whether the address is a class C address.
Chris@16:   BOOST_ASIO_DECL bool is_class_c() const;
Chris@16: 
Chris@16:   /// Determine whether the address is a multicast address.
Chris@16:   BOOST_ASIO_DECL bool is_multicast() const;
Chris@16: 
Chris@16:   /// Compare two addresses for equality.
Chris@16:   friend bool operator==(const address_v4& a1, const address_v4& a2)
Chris@16:   {
Chris@16:     return a1.addr_.s_addr == a2.addr_.s_addr;
Chris@16:   }
Chris@16: 
Chris@16:   /// Compare two addresses for inequality.
Chris@16:   friend bool operator!=(const address_v4& a1, const address_v4& a2)
Chris@16:   {
Chris@16:     return a1.addr_.s_addr != a2.addr_.s_addr;
Chris@16:   }
Chris@16: 
Chris@16:   /// Compare addresses for ordering.
Chris@16:   friend bool operator<(const address_v4& a1, const address_v4& a2)
Chris@16:   {
Chris@16:     return a1.to_ulong() < a2.to_ulong();
Chris@16:   }
Chris@16: 
Chris@16:   /// Compare addresses for ordering.
Chris@16:   friend bool operator>(const address_v4& a1, const address_v4& a2)
Chris@16:   {
Chris@16:     return a1.to_ulong() > a2.to_ulong();
Chris@16:   }
Chris@16: 
Chris@16:   /// Compare addresses for ordering.
Chris@16:   friend bool operator<=(const address_v4& a1, const address_v4& a2)
Chris@16:   {
Chris@16:     return a1.to_ulong() <= a2.to_ulong();
Chris@16:   }
Chris@16: 
Chris@16:   /// Compare addresses for ordering.
Chris@16:   friend bool operator>=(const address_v4& a1, const address_v4& a2)
Chris@16:   {
Chris@16:     return a1.to_ulong() >= a2.to_ulong();
Chris@16:   }
Chris@16: 
Chris@16:   /// Obtain an address object that represents any address.
Chris@16:   static address_v4 any()
Chris@16:   {
Chris@16:     return address_v4();
Chris@16:   }
Chris@16: 
Chris@16:   /// Obtain an address object that represents the loopback address.
Chris@16:   static address_v4 loopback()
Chris@16:   {
Chris@16:     return address_v4(0x7F000001);
Chris@16:   }
Chris@16: 
Chris@16:   /// Obtain an address object that represents the broadcast address.
Chris@16:   static address_v4 broadcast()
Chris@16:   {
Chris@16:     return address_v4(0xFFFFFFFF);
Chris@16:   }
Chris@16: 
Chris@16:   /// Obtain an address object that represents the broadcast address that
Chris@16:   /// corresponds to the specified address and netmask.
Chris@16:   BOOST_ASIO_DECL static address_v4 broadcast(
Chris@16:       const address_v4& addr, const address_v4& mask);
Chris@16: 
Chris@16:   /// Obtain the netmask that corresponds to the address, based on its address
Chris@16:   /// class.
Chris@16:   BOOST_ASIO_DECL static address_v4 netmask(const address_v4& addr);
Chris@16: 
Chris@16: private:
Chris@16:   // The underlying IPv4 address.
Chris@16:   boost::asio::detail::in4_addr_type addr_;
Chris@16: };
Chris@16: 
Chris@16: #if !defined(BOOST_ASIO_NO_IOSTREAM)
Chris@16: 
Chris@16: /// Output an address as a string.
Chris@16: /**
Chris@16:  * Used to output a human-readable string for a specified address.
Chris@16:  *
Chris@16:  * @param os The output stream to which the string will be written.
Chris@16:  *
Chris@16:  * @param addr The address to be written.
Chris@16:  *
Chris@16:  * @return The output stream.
Chris@16:  *
Chris@16:  * @relates boost::asio::ip::address_v4
Chris@16:  */
Chris@16: template <typename Elem, typename Traits>
Chris@16: std::basic_ostream<Elem, Traits>& operator<<(
Chris@16:     std::basic_ostream<Elem, Traits>& os, const address_v4& addr);
Chris@16: 
Chris@16: #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
Chris@16: 
Chris@16: } // namespace ip
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #include <boost/asio/ip/impl/address_v4.hpp>
Chris@16: #if defined(BOOST_ASIO_HEADER_ONLY)
Chris@16: # include <boost/asio/ip/impl/address_v4.ipp>
Chris@16: #endif // defined(BOOST_ASIO_HEADER_ONLY)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_IP_ADDRESS_V4_HPP