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61 lines
1.9 KiB
61 lines
1.9 KiB
// Copyright 2019 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef PLATFORM_IMPL_SOCKET_ADDRESS_POSIX_H_
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#define PLATFORM_IMPL_SOCKET_ADDRESS_POSIX_H_
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#include <fcntl.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string>
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#include "platform/base/ip_address.h"
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namespace openscreen {
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class SocketAddressPosix {
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public:
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explicit SocketAddressPosix(const struct sockaddr& address);
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explicit SocketAddressPosix(const IPEndpoint& endpoint);
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SocketAddressPosix(const SocketAddressPosix&) = default;
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SocketAddressPosix(SocketAddressPosix&&) noexcept = default;
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SocketAddressPosix& operator=(const SocketAddressPosix&) = default;
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SocketAddressPosix& operator=(SocketAddressPosix&&) noexcept = default;
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struct sockaddr* address();
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const struct sockaddr* address() const;
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socklen_t size() const;
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IPAddress::Version version() const { return endpoint_.address.version(); }
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IPEndpoint endpoint() const { return endpoint_; }
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// Recomputes |endpoint_| if |internal_address_| is written to directly, e.g.
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// by a system call.
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void RecomputeEndpoint();
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private:
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void RecomputeEndpoint(IPAddress::Version version);
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// The way the sockaddr_* family works in POSIX is pretty unintuitive. The
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// sockaddr_in and sockaddr_in6 structs can be reinterpreted as type
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// sockaddr, however they don't have a common parent--the types are unrelated.
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// Our solution for this is to wrap sockaddr_in* in a union, so that our code
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// can be simplified since most platform APIs just take a sockaddr.
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union SocketAddressIn {
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struct sockaddr_in v4;
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struct sockaddr_in6 v6;
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};
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SocketAddressIn internal_address_;
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IPEndpoint endpoint_;
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};
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} // namespace openscreen
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#endif // PLATFORM_IMPL_SOCKET_ADDRESS_POSIX_H_
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