/usr/include/asio/local/stream_protocol.hpp is in libasio-dev 1:1.10.6-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// local/stream_protocol.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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 ASIO_LOCAL_STREAM_PROTOCOL_HPP
#define ASIO_LOCAL_STREAM_PROTOCOL_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#if defined(ASIO_HAS_LOCAL_SOCKETS) \
|| defined(GENERATING_DOCUMENTATION)
#include "asio/basic_socket_acceptor.hpp"
#include "asio/basic_socket_iostream.hpp"
#include "asio/basic_stream_socket.hpp"
#include "asio/detail/socket_types.hpp"
#include "asio/local/basic_endpoint.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace local {
/// Encapsulates the flags needed for stream-oriented UNIX sockets.
/**
* The asio::local::stream_protocol class contains flags necessary for
* stream-oriented UNIX domain sockets.
*
* @par Thread Safety
* @e Distinct @e objects: Safe.@n
* @e Shared @e objects: Safe.
*
* @par Concepts:
* Protocol.
*/
class stream_protocol
{
public:
/// Obtain an identifier for the type of the protocol.
int type() const
{
return SOCK_STREAM;
}
/// Obtain an identifier for the protocol.
int protocol() const
{
return 0;
}
/// Obtain an identifier for the protocol family.
int family() const
{
return AF_UNIX;
}
/// The type of a UNIX domain endpoint.
typedef basic_endpoint<stream_protocol> endpoint;
/// The UNIX domain socket type.
typedef basic_stream_socket<stream_protocol> socket;
/// The UNIX domain acceptor type.
typedef basic_socket_acceptor<stream_protocol> acceptor;
#if !defined(ASIO_NO_IOSTREAM)
/// The UNIX domain iostream type.
typedef basic_socket_iostream<stream_protocol> iostream;
#endif // !defined(ASIO_NO_IOSTREAM)
};
} // namespace local
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_HAS_LOCAL_SOCKETS)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_LOCAL_STREAM_PROTOCOL_HPP
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