/usr/include/asio/detail/resolver_service.hpp is in libasio-dev 1:1.10.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | //
// detail/resolver_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2016 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_DETAIL_RESOLVER_SERVICE_HPP
#define ASIO_DETAIL_RESOLVER_SERVICE_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_WINDOWS_RUNTIME)
#include "asio/ip/basic_resolver_iterator.hpp"
#include "asio/ip/basic_resolver_query.hpp"
#include "asio/detail/addressof.hpp"
#include "asio/detail/resolve_endpoint_op.hpp"
#include "asio/detail/resolve_op.hpp"
#include "asio/detail/resolver_service_base.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace detail {
template <typename Protocol>
class resolver_service : public resolver_service_base
{
public:
// The implementation type of the resolver. A cancellation token is used to
// indicate to the background thread that the operation has been cancelled.
typedef socket_ops::shared_cancel_token_type implementation_type;
// The endpoint type.
typedef typename Protocol::endpoint endpoint_type;
// The query type.
typedef asio::ip::basic_resolver_query<Protocol> query_type;
// The iterator type.
typedef asio::ip::basic_resolver_iterator<Protocol> iterator_type;
// Constructor.
resolver_service(asio::io_service& io_service)
: resolver_service_base(io_service)
{
}
// Resolve a query to a list of entries.
iterator_type resolve(implementation_type&, const query_type& query,
asio::error_code& ec)
{
asio::detail::addrinfo_type* address_info = 0;
socket_ops::getaddrinfo(query.host_name().c_str(),
query.service_name().c_str(), query.hints(), &address_info, ec);
auto_addrinfo auto_address_info(address_info);
return ec ? iterator_type() : iterator_type::create(
address_info, query.host_name(), query.service_name());
}
// Asynchronously resolve a query to a list of entries.
template <typename Handler>
void async_resolve(implementation_type& impl,
const query_type& query, Handler& handler)
{
// Allocate and construct an operation to wrap the handler.
typedef resolve_op<Protocol, Handler> op;
typename op::ptr p = { asio::detail::addressof(handler),
asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(impl, query, io_service_impl_, handler);
ASIO_HANDLER_CREATION((p.p, "resolver", &impl, "async_resolve"));
start_resolve_op(p.p);
p.v = p.p = 0;
}
// Resolve an endpoint to a list of entries.
iterator_type resolve(implementation_type&,
const endpoint_type& endpoint, asio::error_code& ec)
{
char host_name[NI_MAXHOST];
char service_name[NI_MAXSERV];
socket_ops::sync_getnameinfo(endpoint.data(), endpoint.size(),
host_name, NI_MAXHOST, service_name, NI_MAXSERV,
endpoint.protocol().type(), ec);
return ec ? iterator_type() : iterator_type::create(
endpoint, host_name, service_name);
}
// Asynchronously resolve an endpoint to a list of entries.
template <typename Handler>
void async_resolve(implementation_type& impl,
const endpoint_type& endpoint, Handler& handler)
{
// Allocate and construct an operation to wrap the handler.
typedef resolve_endpoint_op<Protocol, Handler> op;
typename op::ptr p = { asio::detail::addressof(handler),
asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(impl, endpoint, io_service_impl_, handler);
ASIO_HANDLER_CREATION((p.p, "resolver", &impl, "async_resolve"));
start_resolve_op(p.p);
p.v = p.p = 0;
}
};
} // namespace detail
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // !defined(ASIO_WINDOWS_RUNTIME)
#endif // ASIO_DETAIL_RESOLVER_SERVICE_HPP
|