fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
/*
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*
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* Modified by ScyllaDB
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* Copyright (C) 2016-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#include <iomanip>
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#include <boost/io/ios_state.hpp>
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#include <seastar/net/inet_address.hh>
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#include <seastar/net/dns.hh>
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#include <seastar/core/print.hh>
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#include <seastar/core/future.hh>
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#include "inet_address.hh"
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#include "to_string.hh"
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using namespace seastar;
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static_assert(std::is_nothrow_default_constructible_v<gms::inet_address>);
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static_assert(std::is_nothrow_copy_constructible_v<gms::inet_address>);
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static_assert(std::is_nothrow_move_constructible_v<gms::inet_address>);
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future<gms::inet_address> gms::inet_address::lookup(sstring name, opt_family family, opt_family preferred) {
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return seastar::net::dns::get_host_by_name(name, family).then([preferred](seastar::net::hostent&& h) {
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for (auto& addr : h.addr_list) {
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if (!preferred || addr.in_family() == preferred) {
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return gms::inet_address(addr);
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}
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}
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return gms::inet_address(h.addr_list.front());
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});
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}
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std::ostream& gms::operator<<(std::ostream& os, const inet_address& x) {
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if (x.addr().is_ipv4()) {
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return os << x.addr();
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}
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boost::io::ios_flags_saver fs(os);
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os << std::hex;
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auto&& bytes = x.bytes();
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auto i = 0u;
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auto acc = 0u;
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// extra paranoid sign extension evasion - #5808
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for (uint8_t b : bytes) {
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acc <<= 8;
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acc |= b;
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if ((++i & 1) == 0) {
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os << (std::exchange(acc, 0u) & 0xffff);
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if (i != bytes.size()) {
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os << ":";
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}
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}
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}
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os << std::dec;
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if (x.addr().scope() != seastar::net::inet_address::invalid_scope) {
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os << '%' << x.addr().scope();
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}
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return os;
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}
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sstring gms::inet_address::to_sstring() const {
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return format("{}", *this);
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}
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