Chris@16: //
Chris@16: // local/detail/impl/endpoint.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: // Derived from a public domain implementation written by Daniel Casimiro.
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_LOCAL_DETAIL_IMPL_ENDPOINT_IPP
Chris@16: #define BOOST_ASIO_LOCAL_DETAIL_IMPL_ENDPOINT_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: 
Chris@16: #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
Chris@16: 
Chris@16: #include <cstring>
Chris@16: #include <boost/asio/detail/socket_ops.hpp>
Chris@16: #include <boost/asio/detail/throw_error.hpp>
Chris@16: #include <boost/asio/error.hpp>
Chris@16: #include <boost/asio/local/detail/endpoint.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 local {
Chris@16: namespace detail {
Chris@16: 
Chris@16: endpoint::endpoint()
Chris@16: {
Chris@16:   init("", 0);
Chris@16: }
Chris@16: 
Chris@16: endpoint::endpoint(const char* path_name)
Chris@16: {
Chris@16:   using namespace std; // For strlen.
Chris@16:   init(path_name, strlen(path_name));
Chris@16: }
Chris@16: 
Chris@16: endpoint::endpoint(const std::string& path_name)
Chris@16: {
Chris@16:   init(path_name.data(), path_name.length());
Chris@16: }
Chris@16: 
Chris@16: void endpoint::resize(std::size_t new_size)
Chris@16: {
Chris@16:   if (new_size > sizeof(boost::asio::detail::sockaddr_un_type))
Chris@16:   {
Chris@16:     boost::system::error_code ec(boost::asio::error::invalid_argument);
Chris@16:     boost::asio::detail::throw_error(ec);
Chris@16:   }
Chris@16:   else if (new_size == 0)
Chris@16:   {
Chris@16:     path_length_ = 0;
Chris@16:   }
Chris@16:   else
Chris@16:   {
Chris@16:     path_length_ = new_size
Chris@16:       - offsetof(boost::asio::detail::sockaddr_un_type, sun_path);
Chris@16: 
Chris@16:     // The path returned by the operating system may be NUL-terminated.
Chris@16:     if (path_length_ > 0 && data_.local.sun_path[path_length_ - 1] == 0)
Chris@16:       --path_length_;
Chris@16:   }
Chris@16: }
Chris@16: 
Chris@16: std::string endpoint::path() const
Chris@16: {
Chris@16:   return std::string(data_.local.sun_path, path_length_);
Chris@16: }
Chris@16: 
Chris@16: void endpoint::path(const char* p)
Chris@16: {
Chris@16:   using namespace std; // For strlen.
Chris@16:   init(p, strlen(p));
Chris@16: }
Chris@16: 
Chris@16: void endpoint::path(const std::string& p)
Chris@16: {
Chris@16:   init(p.data(), p.length());
Chris@16: }
Chris@16: 
Chris@16: bool operator==(const endpoint& e1, const endpoint& e2)
Chris@16: {
Chris@16:   return e1.path() == e2.path();
Chris@16: }
Chris@16: 
Chris@16: bool operator<(const endpoint& e1, const endpoint& e2)
Chris@16: {
Chris@16:   return e1.path() < e2.path();
Chris@16: }
Chris@16: 
Chris@16: void endpoint::init(const char* path_name, std::size_t path_length)
Chris@16: {
Chris@16:   if (path_length > sizeof(data_.local.sun_path) - 1)
Chris@16:   {
Chris@16:     // The buffer is not large enough to store this address.
Chris@16:     boost::system::error_code ec(boost::asio::error::name_too_long);
Chris@16:     boost::asio::detail::throw_error(ec);
Chris@16:   }
Chris@16: 
Chris@16:   using namespace std; // For memcpy.
Chris@16:   data_.local = boost::asio::detail::sockaddr_un_type();
Chris@16:   data_.local.sun_family = AF_UNIX;
Chris@16:   memcpy(data_.local.sun_path, path_name, path_length);
Chris@16:   path_length_ = path_length;
Chris@16: 
Chris@16:   // NUL-terminate normal path names. Names that start with a NUL are in the
Chris@16:   // UNIX domain protocol's "abstract namespace" and are not NUL-terminated.
Chris@16:   if (path_length > 0 && data_.local.sun_path[0] == 0)
Chris@16:     data_.local.sun_path[path_length] = 0;
Chris@16: }
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace local
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_LOCAL_DETAIL_IMPL_ENDPOINT_IPP