Chris@16: //
Chris@16: // ip/impl/address_v6.ipp
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_IMPL_ADDRESS_V6_IPP
Chris@16: #define BOOST_ASIO_IP_IMPL_ADDRESS_V6_IPP
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 <cstring>
Chris@16: #include <stdexcept>
Chris@16: #include <typeinfo>
Chris@16: #include <boost/asio/detail/socket_ops.hpp>
Chris@16: #include <boost/asio/detail/throw_error.hpp>
Chris@16: #include <boost/asio/detail/throw_exception.hpp>
Chris@16: #include <boost/asio/error.hpp>
Chris@16: #include <boost/asio/ip/address_v6.hpp>
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: address_v6::address_v6()
Chris@16:   : addr_(),
Chris@16:     scope_id_(0)
Chris@16: {
Chris@16: }
Chris@16: 
Chris@16: address_v6::address_v6(const address_v6::bytes_type& bytes,
Chris@16:     unsigned long scope)
Chris@16:   : scope_id_(scope)
Chris@16: {
Chris@16: #if UCHAR_MAX > 0xFF
Chris@16:   for (std::size_t i = 0; i < bytes.size(); ++i)
Chris@16:   {
Chris@16:     if (bytes[i] > 0xFF)
Chris@16:     {
Chris@16:       std::out_of_range ex("address_v6 from bytes_type");
Chris@16:       boost::asio::detail::throw_exception(ex);
Chris@16:     }
Chris@16:   }
Chris@16: #endif // UCHAR_MAX > 0xFF
Chris@16: 
Chris@16:   using namespace std; // For memcpy.
Chris@16:   memcpy(addr_.s6_addr, bytes.data(), 16);
Chris@16: }
Chris@16: 
Chris@16: address_v6::address_v6(const address_v6& other)
Chris@16:   : addr_(other.addr_),
Chris@16:     scope_id_(other.scope_id_)
Chris@16: {
Chris@16: }
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_MOVE)
Chris@16: address_v6::address_v6(address_v6&& other)
Chris@16:   : addr_(other.addr_),
Chris@16:     scope_id_(other.scope_id_)
Chris@16: {
Chris@16: }
Chris@16: #endif // defined(BOOST_ASIO_HAS_MOVE)
Chris@16: 
Chris@16: address_v6& address_v6::operator=(const address_v6& other)
Chris@16: {
Chris@16:   addr_ = other.addr_;
Chris@16:   scope_id_ = other.scope_id_;
Chris@16:   return *this;
Chris@16: }
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_MOVE)
Chris@16: address_v6& address_v6::operator=(address_v6&& other)
Chris@16: {
Chris@16:   addr_ = other.addr_;
Chris@16:   scope_id_ = other.scope_id_;
Chris@16:   return *this;
Chris@16: }
Chris@16: #endif // defined(BOOST_ASIO_HAS_MOVE)
Chris@16: 
Chris@16: address_v6::bytes_type address_v6::to_bytes() const
Chris@16: {
Chris@16:   using namespace std; // For memcpy.
Chris@16:   bytes_type bytes;
Chris@16: #if defined(BOOST_ASIO_HAS_STD_ARRAY)
Chris@16:   memcpy(bytes.data(), addr_.s6_addr, 16);
Chris@16: #else // defined(BOOST_ASIO_HAS_STD_ARRAY)
Chris@16:   memcpy(bytes.elems, addr_.s6_addr, 16);
Chris@16: #endif // defined(BOOST_ASIO_HAS_STD_ARRAY)
Chris@16:   return bytes;
Chris@16: }
Chris@16: 
Chris@16: std::string address_v6::to_string() const
Chris@16: {
Chris@16:   boost::system::error_code ec;
Chris@16:   std::string addr = to_string(ec);
Chris@16:   boost::asio::detail::throw_error(ec);
Chris@16:   return addr;
Chris@16: }
Chris@16: 
Chris@16: std::string address_v6::to_string(boost::system::error_code& ec) const
Chris@16: {
Chris@16:   char addr_str[boost::asio::detail::max_addr_v6_str_len];
Chris@16:   const char* addr =
Chris@16:     boost::asio::detail::socket_ops::inet_ntop(
Chris@16:         BOOST_ASIO_OS_DEF(AF_INET6), &addr_, addr_str,
Chris@16:         boost::asio::detail::max_addr_v6_str_len, scope_id_, ec);
Chris@16:   if (addr == 0)
Chris@16:     return std::string();
Chris@16:   return addr;
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::from_string(const char* str)
Chris@16: {
Chris@16:   boost::system::error_code ec;
Chris@16:   address_v6 addr = from_string(str, ec);
Chris@16:   boost::asio::detail::throw_error(ec);
Chris@16:   return addr;
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::from_string(
Chris@16:     const char* str, boost::system::error_code& ec)
Chris@16: {
Chris@16:   address_v6 tmp;
Chris@16:   if (boost::asio::detail::socket_ops::inet_pton(
Chris@16:         BOOST_ASIO_OS_DEF(AF_INET6), str, &tmp.addr_, &tmp.scope_id_, ec) <= 0)
Chris@16:     return address_v6();
Chris@16:   return tmp;
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::from_string(const std::string& str)
Chris@16: {
Chris@16:   return from_string(str.c_str());
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::from_string(
Chris@16:     const std::string& str, boost::system::error_code& ec)
Chris@16: {
Chris@16:   return from_string(str.c_str(), ec);
Chris@16: }
Chris@16: 
Chris@16: address_v4 address_v6::to_v4() const
Chris@16: {
Chris@16:   if (!is_v4_mapped() && !is_v4_compatible())
Chris@16:   {
Chris@16:     std::bad_cast ex;
Chris@16:     boost::asio::detail::throw_exception(ex);
Chris@16:   }
Chris@16: 
Chris@16:   address_v4::bytes_type v4_bytes = { { addr_.s6_addr[12],
Chris@16:     addr_.s6_addr[13], addr_.s6_addr[14], addr_.s6_addr[15] } };
Chris@16:   return address_v4(v4_bytes);
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_loopback() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
Chris@16:       && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
Chris@16:       && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
Chris@16:       && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
Chris@16:       && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
Chris@16:       && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0)
Chris@16:       && (addr_.s6_addr[12] == 0) && (addr_.s6_addr[13] == 0)
Chris@16:       && (addr_.s6_addr[14] == 0) && (addr_.s6_addr[15] == 1));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_unspecified() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
Chris@16:       && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
Chris@16:       && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
Chris@16:       && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
Chris@16:       && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
Chris@16:       && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0)
Chris@16:       && (addr_.s6_addr[12] == 0) && (addr_.s6_addr[13] == 0)
Chris@16:       && (addr_.s6_addr[14] == 0) && (addr_.s6_addr[15] == 0));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_link_local() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xfe) && ((addr_.s6_addr[1] & 0xc0) == 0x80));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_site_local() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xfe) && ((addr_.s6_addr[1] & 0xc0) == 0xc0));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_v4_mapped() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
Chris@16:       && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
Chris@16:       && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
Chris@16:       && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
Chris@16:       && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
Chris@16:       && (addr_.s6_addr[10] == 0xff) && (addr_.s6_addr[11] == 0xff));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_v4_compatible() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
Chris@16:       && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
Chris@16:       && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
Chris@16:       && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
Chris@16:       && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
Chris@16:       && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0)
Chris@16:       && !((addr_.s6_addr[12] == 0)
Chris@16:         && (addr_.s6_addr[13] == 0)
Chris@16:         && (addr_.s6_addr[14] == 0)
Chris@16:         && ((addr_.s6_addr[15] == 0) || (addr_.s6_addr[15] == 1))));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_multicast() const
Chris@16: {
Chris@16:   return (addr_.s6_addr[0] == 0xff);
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_multicast_global() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x0e));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_multicast_link_local() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x02));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_multicast_node_local() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x01));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_multicast_org_local() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x08));
Chris@16: }
Chris@16: 
Chris@16: bool address_v6::is_multicast_site_local() const
Chris@16: {
Chris@16:   return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x05));
Chris@16: }
Chris@16: 
Chris@16: bool operator==(const address_v6& a1, const address_v6& a2)
Chris@16: {
Chris@16:   using namespace std; // For memcmp.
Chris@16:   return memcmp(&a1.addr_, &a2.addr_,
Chris@16:       sizeof(boost::asio::detail::in6_addr_type)) == 0
Chris@16:     && a1.scope_id_ == a2.scope_id_;
Chris@16: }
Chris@16: 
Chris@16: bool operator<(const address_v6& a1, const address_v6& a2)
Chris@16: {
Chris@16:   using namespace std; // For memcmp.
Chris@16:   int memcmp_result = memcmp(&a1.addr_, &a2.addr_,
Chris@16:       sizeof(boost::asio::detail::in6_addr_type));
Chris@16:   if (memcmp_result < 0)
Chris@16:     return true;
Chris@16:   if (memcmp_result > 0)
Chris@16:     return false;
Chris@16:   return a1.scope_id_ < a2.scope_id_;
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::loopback()
Chris@16: {
Chris@16:   address_v6 tmp;
Chris@16:   tmp.addr_.s6_addr[15] = 1;
Chris@16:   return tmp;
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::v4_mapped(const address_v4& addr)
Chris@16: {
Chris@16:   address_v4::bytes_type v4_bytes = addr.to_bytes();
Chris@16:   bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF,
Chris@16:     v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } };
Chris@16:   return address_v6(v6_bytes);
Chris@16: }
Chris@16: 
Chris@16: address_v6 address_v6::v4_compatible(const address_v4& addr)
Chris@16: {
Chris@16:   address_v4::bytes_type v4_bytes = addr.to_bytes();
Chris@16:   bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
Chris@16:     v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } };
Chris@16:   return address_v6(v6_bytes);
Chris@16: }
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: #endif // BOOST_ASIO_IP_IMPL_ADDRESS_V6_IPP