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cf3b58fbe8
It didn't feel right to have a "DHCPClient" in a "Servers" directory. Rename this to Services to better reflect the type of programs we'll be putting in there.
90 lines
2.9 KiB
C++
90 lines
2.9 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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#include <AK/Function.h>
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#include <AK/String.h>
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#include <AK/Types.h>
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#include "Parser.h"
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void Parser::write(const StringView& data)
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{
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for (size_t i = 0; i < data.length(); i++) {
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u8 ch = data[i];
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switch (m_state) {
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case State::Free:
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switch (ch) {
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case IAC:
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m_state = State::ReadCommand;
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break;
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case '\r':
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if (on_data)
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on_data("\n");
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break;
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default:
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if (on_data)
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on_data(StringView(&ch, 1));
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break;
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}
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break;
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case State::ReadCommand:
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switch (ch) {
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case IAC: {
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m_state = State::Free;
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if (on_data)
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on_data("\xff");
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break;
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}
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case CMD_WILL:
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case CMD_WONT:
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case CMD_DO:
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case CMD_DONT:
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m_command = ch;
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m_state = State::ReadSubcommand;
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break;
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default:
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m_state = State::Error;
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if (on_error)
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on_error();
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break;
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}
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break;
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case State::ReadSubcommand: {
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auto command = m_command;
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m_command = 0;
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m_state = State::Free;
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if (on_command)
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on_command({ command, ch });
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break;
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}
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case State::Error:
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// ignore everything
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break;
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}
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}
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}
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