ip/impl/host_name.ipp

0001 //
0002 // ip/impl/host_name.ipp
0003 // ~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_IP_IMPL_HOST_NAME_IPP
0012 #define BOOST_ASIO_IP_IMPL_HOST_NAME_IPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019 #include <boost/asio/detail/socket_ops.hpp>
0020 #include <boost/asio/detail/throw_error.hpp>
0021 #include <boost/asio/detail/winsock_init.hpp>
0022 #include <boost/asio/ip/host_name.hpp>
0023
0024 #include <boost/asio/detail/push_options.hpp>
0025
0026 namespace boost {
0027 namespace asio {
0028 namespace ip {
0029
0030 std::string host_name()
0031 {
0032   char name[1024];
0033   boost::system::error_code ec;
0034   if (boost::asio::detail::socket_ops::gethostname(name, sizeof(name), ec) != 0)
0035   {
0036     boost::asio::detail::throw_error(ec);
0037     return std::string();
0038   }
0039   return std::string(name);
0040 }
0041
0042 std::string host_name(boost::system::error_code& ec)
0043 {
0044   char name[1024];
0045   if (boost::asio::detail::socket_ops::gethostname(name, sizeof(name), ec) != 0)
0046     return std::string();
0047   return std::string(name);
0048 }
0049
0050 } // namespace ip
0051 } // namespace asio
0052 } // namespace boost
0053
0054 #include <boost/asio/detail/pop_options.hpp>
0055
0056 #endif // BOOST_ASIO_IP_IMPL_HOST_NAME_IPP