mirror of
https://github.com/matrix-construct/construct
synced 2024-12-30 17:34:04 +01:00
161 lines
3.9 KiB
C++
161 lines
3.9 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_NET_IPPORT_H
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// Forward declarations for boost because it is not included here.
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namespace boost::asio::ip
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{
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struct address;
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};
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namespace ircd::net
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{
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struct ipport;
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const uint16_t &port(const ipport &);
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uint16_t &port(ipport &);
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bool is_v6(const ipport &);
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bool is_v4(const ipport &);
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const uint128_t &host6(const ipport &);
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const uint32_t &host4(const ipport &);
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uint128_t &host6(ipport &);
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uint32_t &host4(ipport &);
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string_view string(const mutable_buffer &out, const uint32_t &);
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string_view string(const mutable_buffer &out, const uint128_t &);
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string_view string(const mutable_buffer &out, const ipport &);
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}
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namespace ircd
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{
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using net::ipport;
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using net::host;
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using net::port;
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}
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/// This lightweight structure holds an IP address and port in native byte
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/// form. It is usually returned from the result of a resolution but may also
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/// serve as input to a reverse resolution. Either way, this allocation-free
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/// structure is useful for storing raw IP/port data, even in large sets.
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///
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/// The TYPE field is only a boolean for now indicating IPv4 or IPv6; the
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/// official way to query this is to use net::is_v6(ipport) etc and not
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/// std::get the type directly.
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///
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struct ircd::net::ipport
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:std::tuple<std::array<uint8_t, 16>, uint16_t, bool>
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{
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enum { IP, PORT, TYPE };
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explicit operator bool() const;
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bool operator!() const { return !static_cast<bool>(*this); }
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ipport(const uint32_t &ip, const uint16_t &port);
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ipport(const uint128_t &ip, const uint16_t &port);
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ipport(const rfc1035::record::A &, const uint16_t &port);
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ipport(const rfc1035::record::AAAA &, const uint16_t &port);
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ipport(const boost::asio::ip::address &, const uint16_t &port);
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ipport(const string_view &ip, const uint16_t &port);
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ipport(const string_view &ip, const string_view &port);
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ipport();
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friend std::ostream &operator<<(std::ostream &, const ipport &);
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};
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inline
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ircd::net::ipport::ipport()
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{
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std::get<PORT>(*this) = 0;
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std::get<TYPE>(*this) = 0;
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auto &ip(std::get<IP>(*this));
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std::fill(begin(ip), end(ip), 0x0);
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}
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inline
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ircd::net::ipport::ipport(const uint32_t &ip,
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const uint16_t &p)
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{
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std::get<TYPE>(*this) = false;
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host6(*this) = 0;
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host4(*this) = ip;
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port(*this) = p;
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}
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inline
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ircd::net::ipport::ipport(const uint128_t &ip,
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const uint16_t &p)
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{
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std::get<TYPE>(*this) = true;
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host6(*this) = ip;
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port(*this) = p;
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}
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inline ircd::net::ipport::operator
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bool()
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const
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{
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return std::get<PORT>(*this) != 0;
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}
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inline ircd::uint128_t &
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ircd::net::host6(ipport &ipp)
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{
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auto &bytes{std::get<ipp.IP>(ipp)};
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return *reinterpret_cast<uint128_t *>(bytes.data());
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}
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inline const ircd::uint128_t &
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ircd::net::host6(const ipport &ipp)
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{
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const auto &bytes{std::get<ipp.IP>(ipp)};
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return *reinterpret_cast<const uint128_t *>(bytes.data());
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}
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inline bool
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ircd::net::is_v6(const ipport &ipp)
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{
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return std::get<ipp.TYPE>(ipp) == true;
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}
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inline uint32_t &
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ircd::net::host4(ipport &ipp)
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{
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auto &bytes{std::get<ipp.IP>(ipp)};
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return *reinterpret_cast<uint32_t *>(bytes.data());
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}
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inline const uint32_t &
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ircd::net::host4(const ipport &ipp)
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{
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const auto &bytes{std::get<ipp.IP>(ipp)};
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return *reinterpret_cast<const uint32_t *>(bytes.data());
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}
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inline bool
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ircd::net::is_v4(const ipport &ipp)
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{
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return std::get<ipp.TYPE>(ipp) == false;
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}
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inline uint16_t &
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ircd::net::port(ipport &ipp)
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{
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return std::get<ipp.PORT>(ipp);
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}
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inline const uint16_t &
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ircd::net::port(const ipport &ipp)
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{
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return std::get<ipp.PORT>(ipp);
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}
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