host_name.ipp 1.4 KB

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  1. //
  2. // ip/impl/host_name.ipp
  3. // ~~~~~~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2019 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. #ifndef BOOST_ASIO_IP_IMPL_HOST_NAME_IPP
  11. #define BOOST_ASIO_IP_IMPL_HOST_NAME_IPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include <boost/asio/detail/config.hpp>
  16. #include <boost/asio/detail/socket_ops.hpp>
  17. #include <boost/asio/detail/throw_error.hpp>
  18. #include <boost/asio/detail/winsock_init.hpp>
  19. #include <boost/asio/ip/host_name.hpp>
  20. #include <boost/asio/detail/push_options.hpp>
  21. namespace boost {
  22. namespace asio {
  23. namespace ip {
  24. std::string host_name()
  25. {
  26. char name[1024];
  27. boost::system::error_code ec;
  28. if (boost::asio::detail::socket_ops::gethostname(name, sizeof(name), ec) != 0)
  29. {
  30. boost::asio::detail::throw_error(ec);
  31. return std::string();
  32. }
  33. return std::string(name);
  34. }
  35. std::string host_name(boost::system::error_code& ec)
  36. {
  37. char name[1024];
  38. if (boost::asio::detail::socket_ops::gethostname(name, sizeof(name), ec) != 0)
  39. return std::string();
  40. return std::string(name);
  41. }
  42. } // namespace ip
  43. } // namespace asio
  44. } // namespace boost
  45. #include <boost/asio/detail/pop_options.hpp>
  46. #endif // BOOST_ASIO_IP_IMPL_HOST_NAME_IPP