// | |
// local/detail/impl/endpoint.hpp | |
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
// | |
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) | |
// Derived from a public domain implementation written by Daniel Casimiro. | |
// | |
// Distributed under the Boost Software License, Version 1.0. (See accompanying | |
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
// | |
#ifndef BOOST_ASIO_LOCAL_DETAIL_IMPL_ENDPOINT_IPP | |
#define BOOST_ASIO_LOCAL_DETAIL_IMPL_ENDPOINT_IPP | |
#if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
# pragma once | |
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
#include <boost/asio/detail/config.hpp> | |
#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) | |
#include <cstring> | |
#include <boost/asio/detail/socket_ops.hpp> | |
#include <boost/asio/detail/throw_error.hpp> | |
#include <boost/asio/error.hpp> | |
#include <boost/asio/local/detail/endpoint.hpp> | |
#include <boost/asio/detail/push_options.hpp> | |
namespace boost { | |
namespace asio { | |
namespace local { | |
namespace detail { | |
endpoint::endpoint() | |
{ | |
init("", 0); | |
} | |
endpoint::endpoint(const char* path) | |
{ | |
using namespace std; // For strlen. | |
init(path, strlen(path)); | |
} | |
endpoint::endpoint(const std::string& path) | |
{ | |
init(path.data(), path.length()); | |
} | |
void endpoint::resize(std::size_t size) | |
{ | |
if (size > sizeof(boost::asio::detail::sockaddr_un_type)) | |
{ | |
boost::system::error_code ec(boost::asio::error::invalid_argument); | |
boost::asio::detail::throw_error(ec); | |
} | |
else if (size == 0) | |
{ | |
path_length_ = 0; | |
} | |
else | |
{ | |
path_length_ = size | |
- offsetof(boost::asio::detail::sockaddr_un_type, sun_path); | |
// The path returned by the operating system may be NUL-terminated. | |
if (path_length_ > 0 && data_.local.sun_path[path_length_ - 1] == 0) | |
--path_length_; | |
} | |
} | |
std::string endpoint::path() const | |
{ | |
return std::string(data_.local.sun_path, path_length_); | |
} | |
void endpoint::path(const char* p) | |
{ | |
using namespace std; // For strlen. | |
init(p, strlen(p)); | |
} | |
void endpoint::path(const std::string& p) | |
{ | |
init(p.data(), p.length()); | |
} | |
bool operator==(const endpoint& e1, const endpoint& e2) | |
{ | |
return e1.path() == e2.path(); | |
} | |
bool operator<(const endpoint& e1, const endpoint& e2) | |
{ | |
return e1.path() < e2.path(); | |
} | |
void endpoint::init(const char* path, std::size_t path_length) | |
{ | |
if (path_length > sizeof(data_.local.sun_path) - 1) | |
{ | |
// The buffer is not large enough to store this address. | |
boost::system::error_code ec(boost::asio::error::name_too_long); | |
boost::asio::detail::throw_error(ec); | |
} | |
using namespace std; // For memcpy. | |
data_.local = boost::asio::detail::sockaddr_un_type(); | |
data_.local.sun_family = AF_UNIX; | |
memcpy(data_.local.sun_path, path, path_length); | |
path_length_ = path_length; | |
// NUL-terminate normal path names. Names that start with a NUL are in the | |
// UNIX domain protocol's "abstract namespace" and are not NUL-terminated. | |
if (path_length > 0 && data_.local.sun_path[0] == 0) | |
data_.local.sun_path[path_length] = 0; | |
} | |
} // namespace detail | |
} // namespace local | |
} // namespace asio | |
} // namespace boost | |
#include <boost/asio/detail/pop_options.hpp> | |
#endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) | |
#endif // BOOST_ASIO_LOCAL_DETAIL_IMPL_ENDPOINT_IPP |