ceph/src/boost/libs/asio/include/boost/asio/ip/address_v6.hpp

   1 //
   2 // ip/address_v6.hpp
   3 // ~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #ifndef BOOST_ASIO_IP_ADDRESS_V6_HPP
  12 #define BOOST_ASIO_IP_ADDRESS_V6_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/config.hpp>
  19 #include <string>
  20 #include <boost/asio/detail/array.hpp>
  21 #include <boost/asio/detail/socket_types.hpp>
  22 #include <boost/asio/detail/winsock_init.hpp>
  23 #include <boost/system/error_code.hpp>
  24 #include <boost/asio/ip/address_v4.hpp>
  25
  26 #if !defined(BOOST_ASIO_NO_IOSTREAM)
  27 # include <iosfwd>
  28 #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
  29
  30 #include <boost/asio/detail/push_options.hpp>
  31
  32 namespace boost {
  33 namespace asio {
  34 namespace ip {
  35
  36 /// Implements IP version 6 style addresses.
  37 /**
  38  * The boost::asio::ip::address_v6 class provides the ability to use and
  39  * manipulate IP version 6 addresses.
  40  *
  41  * @par Thread Safety
  42  * @e Distinct @e objects: Safe.@n
  43  * @e Shared @e objects: Unsafe.
  44  */
  45 class address_v6
  46 {
  47 public:
  48   /// The type used to represent an address as an array of bytes.
  49   /**
  50    * @note This type is defined in terms of the C++0x template @c std::array
  51    * when it is available. Otherwise, it uses @c boost:array.
  52    */
  53 #if defined(GENERATING_DOCUMENTATION)
  54   typedef array<unsigned char, 16> bytes_type;
  55 #else
  56   typedef boost::asio::detail::array<unsigned char, 16> bytes_type;
  57 #endif
  58
  59   /// Default constructor.
  60   BOOST_ASIO_DECL address_v6();
  61
  62   /// Construct an address from raw bytes and scope ID.
  63   BOOST_ASIO_DECL explicit address_v6(const bytes_type& bytes,
  64       unsigned long scope_id = 0);
  65
  66   /// Copy constructor.
  67   BOOST_ASIO_DECL address_v6(const address_v6& other);
  68
  69 #if defined(BOOST_ASIO_HAS_MOVE)
  70   /// Move constructor.
  71   BOOST_ASIO_DECL address_v6(address_v6&& other);
  72 #endif // defined(BOOST_ASIO_HAS_MOVE)
  73
  74   /// Assign from another address.
  75   BOOST_ASIO_DECL address_v6& operator=(const address_v6& other);
  76
  77 #if defined(BOOST_ASIO_HAS_MOVE)
  78   /// Move-assign from another address.
  79   BOOST_ASIO_DECL address_v6& operator=(address_v6&& other);
  80 #endif // defined(BOOST_ASIO_HAS_MOVE)
  81
  82   /// The scope ID of the address.
  83   /**
  84    * Returns the scope ID associated with the IPv6 address.
  85    */
  86   unsigned long scope_id() const
  87   {
  88     return scope_id_;
  89   }
  90
  91   /// The scope ID of the address.
  92   /**
  93    * Modifies the scope ID associated with the IPv6 address.
  94    */
  95   void scope_id(unsigned long id)
  96   {
  97     scope_id_ = id;
  98   }
  99
 100   /// Get the address in bytes, in network byte order.
 101   BOOST_ASIO_DECL bytes_type to_bytes() const;
 102
 103   /// Get the address as a string.
 104   BOOST_ASIO_DECL std::string to_string() const;
 105
 106   /// Get the address as a string.
 107   BOOST_ASIO_DECL std::string to_string(boost::system::error_code& ec) const;
 108
 109   /// Create an address from an IP address string.
 110   BOOST_ASIO_DECL static address_v6 from_string(const char* str);
 111
 112   /// Create an address from an IP address string.
 113   BOOST_ASIO_DECL static address_v6 from_string(
 114       const char* str, boost::system::error_code& ec);
 115
 116   /// Create an address from an IP address string.
 117   BOOST_ASIO_DECL static address_v6 from_string(const std::string& str);
 118
 119   /// Create an address from an IP address string.
 120   BOOST_ASIO_DECL static address_v6 from_string(
 121       const std::string& str, boost::system::error_code& ec);
 122
 123   /// Converts an IPv4-mapped or IPv4-compatible address to an IPv4 address.
 124   BOOST_ASIO_DECL address_v4 to_v4() const;
 125
 126   /// Determine whether the address is a loopback address.
 127   BOOST_ASIO_DECL bool is_loopback() const;
 128
 129   /// Determine whether the address is unspecified.
 130   BOOST_ASIO_DECL bool is_unspecified() const;
 131
 132   /// Determine whether the address is link local.
 133   BOOST_ASIO_DECL bool is_link_local() const;
 134
 135   /// Determine whether the address is site local.
 136   BOOST_ASIO_DECL bool is_site_local() const;
 137
 138   /// Determine whether the address is a mapped IPv4 address.
 139   BOOST_ASIO_DECL bool is_v4_mapped() const;
 140
 141   /// Determine whether the address is an IPv4-compatible address.
 142   BOOST_ASIO_DECL bool is_v4_compatible() const;
 143
 144   /// Determine whether the address is a multicast address.
 145   BOOST_ASIO_DECL bool is_multicast() const;
 146
 147   /// Determine whether the address is a global multicast address.
 148   BOOST_ASIO_DECL bool is_multicast_global() const;
 149
 150   /// Determine whether the address is a link-local multicast address.
 151   BOOST_ASIO_DECL bool is_multicast_link_local() const;
 152
 153   /// Determine whether the address is a node-local multicast address.
 154   BOOST_ASIO_DECL bool is_multicast_node_local() const;
 155
 156   /// Determine whether the address is a org-local multicast address.
 157   BOOST_ASIO_DECL bool is_multicast_org_local() const;
 158
 159   /// Determine whether the address is a site-local multicast address.
 160   BOOST_ASIO_DECL bool is_multicast_site_local() const;
 161
 162   /// Compare two addresses for equality.
 163   BOOST_ASIO_DECL friend bool operator==(
 164       const address_v6& a1, const address_v6& a2);
 165
 166   /// Compare two addresses for inequality.
 167   friend bool operator!=(const address_v6& a1, const address_v6& a2)
 168   {
 169     return !(a1 == a2);
 170   }
 171
 172   /// Compare addresses for ordering.
 173   BOOST_ASIO_DECL friend bool operator<(
 174       const address_v6& a1, const address_v6& a2);
 175
 176   /// Compare addresses for ordering.
 177   friend bool operator>(const address_v6& a1, const address_v6& a2)
 178   {
 179     return a2 < a1;
 180   }
 181
 182   /// Compare addresses for ordering.
 183   friend bool operator<=(const address_v6& a1, const address_v6& a2)
 184   {
 185     return !(a2 < a1);
 186   }
 187
 188   /// Compare addresses for ordering.
 189   friend bool operator>=(const address_v6& a1, const address_v6& a2)
 190   {
 191     return !(a1 < a2);
 192   }
 193
 194   /// Obtain an address object that represents any address.
 195   static address_v6 any()
 196   {
 197     return address_v6();
 198   }
 199
 200   /// Obtain an address object that represents the loopback address.
 201   BOOST_ASIO_DECL static address_v6 loopback();
 202
 203   /// Create an IPv4-mapped IPv6 address.
 204   BOOST_ASIO_DECL static address_v6 v4_mapped(const address_v4& addr);
 205
 206   /// Create an IPv4-compatible IPv6 address.
 207   BOOST_ASIO_DECL static address_v6 v4_compatible(const address_v4& addr);
 208
 209 private:
 210   // The underlying IPv6 address.
 211   boost::asio::detail::in6_addr_type addr_;
 212
 213   // The scope ID associated with the address.
 214   unsigned long scope_id_;
 215 };
 216
 217 #if !defined(BOOST_ASIO_NO_IOSTREAM)
 218
 219 /// Output an address as a string.
 220 /**
 221  * Used to output a human-readable string for a specified address.
 222  *
 223  * @param os The output stream to which the string will be written.
 224  *
 225  * @param addr The address to be written.
 226  *
 227  * @return The output stream.
 228  *
 229  * @relates boost::asio::ip::address_v6
 230  */
 231 template <typename Elem, typename Traits>
 232 std::basic_ostream<Elem, Traits>& operator<<(
 233     std::basic_ostream<Elem, Traits>& os, const address_v6& addr);
 234
 235 #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
 236
 237 } // namespace ip
 238 } // namespace asio
 239 } // namespace boost
 240
 241 #include <boost/asio/detail/pop_options.hpp>
 242
 243 #include <boost/asio/ip/impl/address_v6.hpp>
 244 #if defined(BOOST_ASIO_HEADER_ONLY)
 245 # include <boost/asio/ip/impl/address_v6.ipp>
 246 #endif // defined(BOOST_ASIO_HEADER_ONLY)
 247
 248 #endif // BOOST_ASIO_IP_ADDRESS_V6_HPP