mirror of
https://github.com/SerenityOS/serenity
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94ca55cefd
As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
129 lines
3.8 KiB
C++
129 lines
3.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/LogStream.h>
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#include <AK/NetworkOrdered.h>
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#include <AK/Optional.h>
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typedef u32 in_addr_t;
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namespace AK {
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class [[gnu::packed]] IPv4Address
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{
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public:
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IPv4Address() {}
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IPv4Address(const u8 data[4])
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{
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m_data[0] = data[0];
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m_data[1] = data[1];
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m_data[2] = data[2];
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m_data[3] = data[3];
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}
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IPv4Address(u8 a, u8 b, u8 c, u8 d)
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{
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m_data[0] = a;
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m_data[1] = b;
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m_data[2] = c;
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m_data[3] = d;
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}
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IPv4Address(NetworkOrdered<u32> address)
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: m_data_as_u32(address)
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{
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}
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u8 operator[](int i) const
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{
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ASSERT(i >= 0 && i < 4);
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return m_data[i];
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}
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String to_string() const
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{
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return String::format("%u.%u.%u.%u", m_data[0], m_data[1], m_data[2], m_data[3]);
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}
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static Optional<IPv4Address> from_string(const StringView& string)
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{
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if (string.is_null())
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return {};
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auto parts = string.split_view('.');
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if (parts.size() != 4)
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return {};
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bool ok;
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auto a = parts[0].to_uint(ok);
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if (!ok || a > 255)
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return {};
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auto b = parts[1].to_uint(ok);
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if (!ok || b > 255)
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return {};
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auto c = parts[2].to_uint(ok);
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if (!ok || c > 255)
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return {};
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auto d = parts[3].to_uint(ok);
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if (!ok || d > 255)
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return {};
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return IPv4Address((u8)a, (u8)b, (u8)c, (u8)d);
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}
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in_addr_t to_in_addr_t() const { return m_data_as_u32; }
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u32 to_u32() const { return m_data_as_u32; }
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bool operator==(const IPv4Address& other) const { return m_data_as_u32 == other.m_data_as_u32; }
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bool operator!=(const IPv4Address& other) const { return m_data_as_u32 != other.m_data_as_u32; }
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bool is_zero() const
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{
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return m_data_as_u32 == 0;
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}
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private:
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union {
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u8 m_data[4];
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u32 m_data_as_u32 { 0 };
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};
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};
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static_assert(sizeof(IPv4Address) == 4);
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template<>
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struct Traits<IPv4Address> : public GenericTraits<IPv4Address> {
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static unsigned hash(const IPv4Address& address) { return string_hash((const char*)&address, sizeof(address)); }
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static void dump(const IPv4Address& address) { kprintf("%s", address.to_string().characters()); }
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};
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inline const LogStream& operator<<(const LogStream& stream, const IPv4Address& value)
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{
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return stream << value.to_string();
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}
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}
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using AK::IPv4Address;
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