151 lines
3.8 KiB
C++
151 lines
3.8 KiB
C++
/*
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* Copyright (C) 2012-2015 Max Kellermann <max.kellermann@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ALLOCATED_SOCKET_ADDRESS_HPP
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#define ALLOCATED_SOCKET_ADDRESS_HPP
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#include "SocketAddress.hxx"
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#include "Features.hxx"
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#include "Compiler.h"
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#include <algorithm>
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#include <stdlib.h>
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struct sockaddr;
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class AllocatedSocketAddress {
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public:
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typedef SocketAddress::size_type size_type;
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private:
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struct sockaddr *address;
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size_type size;
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AllocatedSocketAddress(struct sockaddr *_address,
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size_type _size)
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:address(_address), size(_size) {}
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public:
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AllocatedSocketAddress():address(nullptr), size(0) {}
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explicit AllocatedSocketAddress(SocketAddress src)
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:address(nullptr), size(0) {
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*this = src;
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}
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AllocatedSocketAddress(const AllocatedSocketAddress &) = delete;
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AllocatedSocketAddress(AllocatedSocketAddress &&src)
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:address(src.address), size(src.size) {
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src.address = nullptr;
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src.size = 0;
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}
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~AllocatedSocketAddress() {
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free(address);
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}
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AllocatedSocketAddress &operator=(SocketAddress src);
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AllocatedSocketAddress &operator=(const AllocatedSocketAddress &) = delete;
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AllocatedSocketAddress &operator=(AllocatedSocketAddress &&src) noexcept {
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std::swap(address, src.address);
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std::swap(size, src.size);
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return *this;
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}
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gcc_pure
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bool operator==(SocketAddress other) const noexcept {
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return (SocketAddress)*this == other;
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}
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bool operator!=(SocketAddress &other) const noexcept {
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return !(*this == other);
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}
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gcc_const
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static AllocatedSocketAddress Null() noexcept {
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return AllocatedSocketAddress(nullptr, 0);
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}
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bool IsNull() const noexcept {
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return address == nullptr;
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}
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size_type GetSize() const noexcept {
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return size;
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}
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const struct sockaddr *GetAddress() const noexcept {
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return address;
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}
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operator SocketAddress() const noexcept {
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return SocketAddress(address, size);
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}
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operator const struct sockaddr *() const noexcept {
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return address;
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}
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int GetFamily() const noexcept {
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return address->sa_family;
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}
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/**
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* Does the object have a well-defined address? Check !IsNull()
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* before calling this method.
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*/
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bool IsDefined() const noexcept {
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return GetFamily() != AF_UNSPEC;
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}
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void Clear() noexcept {
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free(address);
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address = nullptr;
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size = 0;
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}
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#ifdef HAVE_UN
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/**
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* Make this a "local" address (UNIX domain socket). If the path
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* begins with a '@', then the rest specifies an "abstract" local
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* address.
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*/
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void SetLocal(const char *path) noexcept;
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#endif
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private:
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void SetSize(size_type new_size) noexcept;
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};
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#endif
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