00001 // 00002 // host_name.hpp 00003 // ~~~~~~~~~~~~~ 00004 // 00005 // Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com) 00006 // 00007 // Distributed under the Boost Software License, Version 1.0. (See accompanying 00008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 00009 // 00010 00011 #ifndef ASIO_IP_HOST_NAME_HPP 00012 #define ASIO_IP_HOST_NAME_HPP 00013 00014 #if defined(_MSC_VER) && (_MSC_VER >= 1200) 00015 # pragma once 00016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) 00017 00018 #include "asio/detail/push_options.hpp" 00019 00020 #include "asio/detail/push_options.hpp" 00021 #include <string> 00022 #include "asio/detail/pop_options.hpp" 00023 00024 #include "asio/error.hpp" 00025 #include "asio/detail/socket_ops.hpp" 00026 #include "asio/detail/throw_error.hpp" 00027 00028 namespace asio { 00029 namespace ip { 00030 00032 std::string host_name(); 00033 00035 std::string host_name(asio::error_code& ec); 00036 00037 inline std::string host_name() 00038 { 00039 char name[1024]; 00040 asio::error_code ec; 00041 if (asio::detail::socket_ops::gethostname(name, sizeof(name), ec) != 0) 00042 { 00043 asio::detail::throw_error(ec); 00044 return std::string(); 00045 } 00046 return std::string(name); 00047 } 00048 00049 inline std::string host_name(asio::error_code& ec) 00050 { 00051 char name[1024]; 00052 if (asio::detail::socket_ops::gethostname(name, sizeof(name), ec) != 0) 00053 return std::string(); 00054 return std::string(name); 00055 } 00056 00057 } // namespace ip 00058 } // namespace asio 00059 00060 #include "asio/detail/pop_options.hpp" 00061 00062 #endif // ASIO_IP_HOST_NAME_HPP
