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authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-10-07 04:52:50 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-10-07 04:52:50 +0200
commit0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d (patch)
treea71d934d8151dd43e7c16555fef17fd749c5da70 /lib/asio/ip/detail/socket_option.hpp
parent558d74bffd9f069955af52c0b308a1d6169bcff0 (diff)
parent0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff)
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Merge lime output into next branch
Diffstat (limited to 'lib/asio/ip/detail/socket_option.hpp')
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diff --git a/lib/asio/ip/detail/socket_option.hpp b/lib/asio/ip/detail/socket_option.hpp
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-//
-// detail/socket_option.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 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_IP_DETAIL_SOCKET_OPTION_HPP
-#define ASIO_IP_DETAIL_SOCKET_OPTION_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-#include <cstring>
-#include <stdexcept>
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/throw_exception.hpp"
-#include "asio/ip/address.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace ip {
-namespace detail {
-namespace socket_option {
-
-// Helper template for implementing multicast enable loopback options.
-template <int IPv4_Level, int IPv4_Name, int IPv6_Level, int IPv6_Name>
-class multicast_enable_loopback
-{
-public:
-#if defined(__sun) || defined(__osf__)
- typedef unsigned char ipv4_value_type;
- typedef unsigned char ipv6_value_type;
-#elif defined(_AIX) || defined(__hpux) || defined(__QNXNTO__)
- typedef unsigned char ipv4_value_type;
- typedef unsigned int ipv6_value_type;
-#else
- typedef int ipv4_value_type;
- typedef int ipv6_value_type;
-#endif
-
- // Default constructor.
- multicast_enable_loopback()
- : ipv4_value_(0),
- ipv6_value_(0)
- {
- }
-
- // Construct with a specific option value.
- explicit multicast_enable_loopback(bool v)
- : ipv4_value_(v ? 1 : 0),
- ipv6_value_(v ? 1 : 0)
- {
- }
-
- // Set the value of the boolean.
- multicast_enable_loopback& operator=(bool v)
- {
- ipv4_value_ = v ? 1 : 0;
- ipv6_value_ = v ? 1 : 0;
- return *this;
- }
-
- // Get the current value of the boolean.
- bool value() const
- {
- return !!ipv4_value_;
- }
-
- // Convert to bool.
- operator bool() const
- {
- return !!ipv4_value_;
- }
-
- // Test for false.
- bool operator!() const
- {
- return !ipv4_value_;
- }
-
- // Get the level of the socket option.
- template <typename Protocol>
- int level(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Level;
- return IPv4_Level;
- }
-
- // Get the name of the socket option.
- template <typename Protocol>
- int name(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Name;
- return IPv4_Name;
- }
-
- // Get the address of the boolean data.
- template <typename Protocol>
- void* data(const Protocol& protocol)
- {
- if (protocol.family() == PF_INET6)
- return &ipv6_value_;
- return &ipv4_value_;
- }
-
- // Get the address of the boolean data.
- template <typename Protocol>
- const void* data(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return &ipv6_value_;
- return &ipv4_value_;
- }
-
- // Get the size of the boolean data.
- template <typename Protocol>
- std::size_t size(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return sizeof(ipv6_value_);
- return sizeof(ipv4_value_);
- }
-
- // Set the size of the boolean data.
- template <typename Protocol>
- void resize(const Protocol& protocol, std::size_t s)
- {
- if (protocol.family() == PF_INET6)
- {
- if (s != sizeof(ipv6_value_))
- {
- std::length_error ex("multicast_enable_loopback socket option resize");
- asio::detail::throw_exception(ex);
- }
- ipv4_value_ = ipv6_value_ ? 1 : 0;
- }
- else
- {
- if (s != sizeof(ipv4_value_))
- {
- std::length_error ex("multicast_enable_loopback socket option resize");
- asio::detail::throw_exception(ex);
- }
- ipv6_value_ = ipv4_value_ ? 1 : 0;
- }
- }
-
-private:
- ipv4_value_type ipv4_value_;
- ipv6_value_type ipv6_value_;
-};
-
-// Helper template for implementing unicast hops options.
-template <int IPv4_Level, int IPv4_Name, int IPv6_Level, int IPv6_Name>
-class unicast_hops
-{
-public:
- // Default constructor.
- unicast_hops()
- : value_(0)
- {
- }
-
- // Construct with a specific option value.
- explicit unicast_hops(int v)
- : value_(v)
- {
- }
-
- // Set the value of the option.
- unicast_hops& operator=(int v)
- {
- value_ = v;
- return *this;
- }
-
- // Get the current value of the option.
- int value() const
- {
- return value_;
- }
-
- // Get the level of the socket option.
- template <typename Protocol>
- int level(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Level;
- return IPv4_Level;
- }
-
- // Get the name of the socket option.
- template <typename Protocol>
- int name(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Name;
- return IPv4_Name;
- }
-
- // Get the address of the data.
- template <typename Protocol>
- int* data(const Protocol&)
- {
- return &value_;
- }
-
- // Get the address of the data.
- template <typename Protocol>
- const int* data(const Protocol&) const
- {
- return &value_;
- }
-
- // Get the size of the data.
- template <typename Protocol>
- std::size_t size(const Protocol&) const
- {
- return sizeof(value_);
- }
-
- // Set the size of the data.
- template <typename Protocol>
- void resize(const Protocol&, std::size_t s)
- {
- if (s != sizeof(value_))
- {
- std::length_error ex("unicast hops socket option resize");
- asio::detail::throw_exception(ex);
- }
-#if defined(__hpux)
- if (value_ < 0)
- value_ = value_ & 0xFF;
-#endif
- }
-
-private:
- int value_;
-};
-
-// Helper template for implementing multicast hops options.
-template <int IPv4_Level, int IPv4_Name, int IPv6_Level, int IPv6_Name>
-class multicast_hops
-{
-public:
-#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
- typedef int ipv4_value_type;
-#else
- typedef unsigned char ipv4_value_type;
-#endif
- typedef int ipv6_value_type;
-
- // Default constructor.
- multicast_hops()
- : ipv4_value_(0),
- ipv6_value_(0)
- {
- }
-
- // Construct with a specific option value.
- explicit multicast_hops(int v)
- {
- if (v < 0 || v > 255)
- {
- std::out_of_range ex("multicast hops value out of range");
- asio::detail::throw_exception(ex);
- }
- ipv4_value_ = (ipv4_value_type)v;
- ipv6_value_ = v;
- }
-
- // Set the value of the option.
- multicast_hops& operator=(int v)
- {
- if (v < 0 || v > 255)
- {
- std::out_of_range ex("multicast hops value out of range");
- asio::detail::throw_exception(ex);
- }
- ipv4_value_ = (ipv4_value_type)v;
- ipv6_value_ = v;
- return *this;
- }
-
- // Get the current value of the option.
- int value() const
- {
- return ipv6_value_;
- }
-
- // Get the level of the socket option.
- template <typename Protocol>
- int level(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Level;
- return IPv4_Level;
- }
-
- // Get the name of the socket option.
- template <typename Protocol>
- int name(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Name;
- return IPv4_Name;
- }
-
- // Get the address of the data.
- template <typename Protocol>
- void* data(const Protocol& protocol)
- {
- if (protocol.family() == PF_INET6)
- return &ipv6_value_;
- return &ipv4_value_;
- }
-
- // Get the address of the data.
- template <typename Protocol>
- const void* data(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return &ipv6_value_;
- return &ipv4_value_;
- }
-
- // Get the size of the data.
- template <typename Protocol>
- std::size_t size(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return sizeof(ipv6_value_);
- return sizeof(ipv4_value_);
- }
-
- // Set the size of the data.
- template <typename Protocol>
- void resize(const Protocol& protocol, std::size_t s)
- {
- if (protocol.family() == PF_INET6)
- {
- if (s != sizeof(ipv6_value_))
- {
- std::length_error ex("multicast hops socket option resize");
- asio::detail::throw_exception(ex);
- }
- if (ipv6_value_ < 0)
- ipv4_value_ = 0;
- else if (ipv6_value_ > 255)
- ipv4_value_ = 255;
- else
- ipv4_value_ = (ipv4_value_type)ipv6_value_;
- }
- else
- {
- if (s != sizeof(ipv4_value_))
- {
- std::length_error ex("multicast hops socket option resize");
- asio::detail::throw_exception(ex);
- }
- ipv6_value_ = ipv4_value_;
- }
- }
-
-private:
- ipv4_value_type ipv4_value_;
- ipv6_value_type ipv6_value_;
-};
-
-// Helper template for implementing ip_mreq-based options.
-template <int IPv4_Level, int IPv4_Name, int IPv6_Level, int IPv6_Name>
-class multicast_request
-{
-public:
- // Default constructor.
- multicast_request()
- : ipv4_value_(), // Zero-initialisation gives the "any" address.
- ipv6_value_() // Zero-initialisation gives the "any" address.
- {
- }
-
- // Construct with multicast address only.
- explicit multicast_request(const address& multicast_address)
- : ipv4_value_(), // Zero-initialisation gives the "any" address.
- ipv6_value_() // Zero-initialisation gives the "any" address.
- {
- if (multicast_address.is_v6())
- {
- using namespace std; // For memcpy.
- address_v6 ipv6_address = multicast_address.to_v6();
- address_v6::bytes_type bytes = ipv6_address.to_bytes();
- memcpy(ipv6_value_.ipv6mr_multiaddr.s6_addr, bytes.data(), 16);
- ipv6_value_.ipv6mr_interface = ipv6_address.scope_id();
- }
- else
- {
- ipv4_value_.imr_multiaddr.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- multicast_address.to_v4().to_uint());
- ipv4_value_.imr_interface.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- address_v4::any().to_uint());
- }
- }
-
- // Construct with multicast address and IPv4 address specifying an interface.
- explicit multicast_request(const address_v4& multicast_address,
- const address_v4& network_interface = address_v4::any())
- : ipv6_value_() // Zero-initialisation gives the "any" address.
- {
- ipv4_value_.imr_multiaddr.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- multicast_address.to_uint());
- ipv4_value_.imr_interface.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- network_interface.to_uint());
- }
-
- // Construct with multicast address and IPv6 network interface index.
- explicit multicast_request(
- const address_v6& multicast_address,
- unsigned long network_interface = 0)
- : ipv4_value_() // Zero-initialisation gives the "any" address.
- {
- using namespace std; // For memcpy.
- address_v6::bytes_type bytes = multicast_address.to_bytes();
- memcpy(ipv6_value_.ipv6mr_multiaddr.s6_addr, bytes.data(), 16);
- if (network_interface)
- ipv6_value_.ipv6mr_interface = network_interface;
- else
- ipv6_value_.ipv6mr_interface = multicast_address.scope_id();
- }
-
- // Get the level of the socket option.
- template <typename Protocol>
- int level(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Level;
- return IPv4_Level;
- }
-
- // Get the name of the socket option.
- template <typename Protocol>
- int name(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Name;
- return IPv4_Name;
- }
-
- // Get the address of the option data.
- template <typename Protocol>
- const void* data(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return &ipv6_value_;
- return &ipv4_value_;
- }
-
- // Get the size of the option data.
- template <typename Protocol>
- std::size_t size(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return sizeof(ipv6_value_);
- return sizeof(ipv4_value_);
- }
-
-private:
- asio::detail::in4_mreq_type ipv4_value_;
- asio::detail::in6_mreq_type ipv6_value_;
-};
-
-// Helper template for implementing options that specify a network interface.
-template <int IPv4_Level, int IPv4_Name, int IPv6_Level, int IPv6_Name>
-class network_interface
-{
-public:
- // Default constructor.
- network_interface()
- {
- ipv4_value_.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- address_v4::any().to_uint());
- ipv6_value_ = 0;
- }
-
- // Construct with IPv4 interface.
- explicit network_interface(const address_v4& ipv4_interface)
- {
- ipv4_value_.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- ipv4_interface.to_uint());
- ipv6_value_ = 0;
- }
-
- // Construct with IPv6 interface.
- explicit network_interface(unsigned int ipv6_interface)
- {
- ipv4_value_.s_addr =
- asio::detail::socket_ops::host_to_network_long(
- address_v4::any().to_uint());
- ipv6_value_ = ipv6_interface;
- }
-
- // Get the level of the socket option.
- template <typename Protocol>
- int level(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Level;
- return IPv4_Level;
- }
-
- // Get the name of the socket option.
- template <typename Protocol>
- int name(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return IPv6_Name;
- return IPv4_Name;
- }
-
- // Get the address of the option data.
- template <typename Protocol>
- const void* data(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return &ipv6_value_;
- return &ipv4_value_;
- }
-
- // Get the size of the option data.
- template <typename Protocol>
- std::size_t size(const Protocol& protocol) const
- {
- if (protocol.family() == PF_INET6)
- return sizeof(ipv6_value_);
- return sizeof(ipv4_value_);
- }
-
-private:
- asio::detail::in4_addr_type ipv4_value_;
- unsigned int ipv6_value_;
-};
-
-} // namespace socket_option
-} // namespace detail
-} // namespace ip
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_IP_DETAIL_SOCKET_OPTION_HPP