mirror of
https://github.com/matrix-construct/construct
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c64bb6850c
ircd::net: Add an is_null(ipport/ipaddr). ircd::net: Improve the v6/v4 check efficiency. ircd::net: Swap defaulting from v6 to v4 for better null address output.
143 lines
3.1 KiB
C++
143 lines
3.1 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) 2016-2019 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_IPADDR_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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struct address_v4;
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struct address_v6;
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};
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namespace ircd::net
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{
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union ipaddr;
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const uint128_t &host6(const ipaddr &);
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const uint32_t &host4(const ipaddr &);
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uint128_t &host6(ipaddr &);
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uint32_t &host4(ipaddr &);
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bool is_null(const ipaddr &);
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bool is_loop(const ipaddr &);
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bool is_v6(const ipaddr &);
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bool is_v4(const ipaddr &);
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bool operator!(const ipaddr &);
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bool operator<(const ipaddr &, const ipaddr &);
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bool operator==(const ipaddr &, const ipaddr &);
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string_view string_ip4(const mutable_buffer &out, const uint32_t &);
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string_view string_ip6(const mutable_buffer &out, const uint128_t &);
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string_view string(const mutable_buffer &out, const ipaddr &);
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std::ostream &operator<<(std::ostream &, const ipaddr &);
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boost::asio::ip::address_v6 make_address(const uint128_t &);
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boost::asio::ip::address_v4 make_address(const uint32_t &);
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boost::asio::ip::address make_address(const ipaddr &);
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boost::asio::ip::address make_address(const string_view &ip);
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}
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union ircd::net::ipaddr
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{
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struct cmp;
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static const uint128_t v4_min, v4_max;
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uint32_t v4;
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uint128_t v6 {0};
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std::array<uint8_t, 16> byte;
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explicit operator bool() const;
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explicit ipaddr(const uint32_t &ip);
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explicit ipaddr(const uint128_t &ip);
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explicit ipaddr(const rfc1035::record::A &);
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explicit ipaddr(const rfc1035::record::AAAA &);
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explicit ipaddr(const boost::asio::ip::address &);
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ipaddr(const string_view &ip);
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ipaddr() = default;
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};
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static_assert(std::alignment_of<ircd::net::ipaddr>() >= 16);
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struct ircd::net::ipaddr::cmp
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{
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bool operator()(const ipaddr &a, const ipaddr &b) const;
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};
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inline ircd::net::ipaddr::operator
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bool() const
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{
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return bool(v6);
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}
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inline bool
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ircd::net::operator==(const ipaddr &a, const ipaddr &b)
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{
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return a.v6 == b.v6;
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}
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inline bool
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ircd::net::operator<(const ipaddr &a, const ipaddr &b)
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{
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return a.v6 < b.v6;
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}
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inline bool
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ircd::net::operator!(const ipaddr &a)
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{
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return is_null(a);
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}
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inline bool
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ircd::net::is_v4(const ipaddr &ipaddr)
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{
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return !ipaddr.v6 || !is_v6(ipaddr);
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}
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inline bool
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ircd::net::is_v6(const ipaddr &ipaddr)
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{
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return ipaddr.v6 > ipaddr::v4_max || ipaddr.v6 < ipaddr::v4_min;
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}
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inline bool
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ircd::net::is_null(const ipaddr &ipaddr)
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{
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return is_v4(ipaddr)? ipaddr.v4 == 0 : ipaddr.v6 == 0;
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}
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inline uint32_t &
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ircd::net::host4(ipaddr &ipaddr)
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{
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return ipaddr.v4;
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}
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inline ircd::uint128_t &
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ircd::net::host6(ipaddr &ipaddr)
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{
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return ipaddr.v6;
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}
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inline const uint32_t &
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ircd::net::host4(const ipaddr &ipaddr)
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{
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return ipaddr.v4;
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}
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inline const ircd::uint128_t &
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ircd::net::host6(const ipaddr &ipaddr)
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{
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return ipaddr.v6;
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}
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