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https://github.com/mod-playerbots/azerothcore-wotlk.git
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60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*
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* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information.
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*
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* Portions of this file are derived from systemd, licensed under:
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* - GPL-2.0-or-later (if the original systemd file was GPL-2.0+)
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* OR
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* - LGPL-2.1-or-later, relicensed under GPL-2.0-or-later as permitted by LGPL-2.1+
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*
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* Original systemd copyright:
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* Copyright (c) the systemd contributors.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if defined(__linux__)
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#include "Log.h"
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#include "StringConvert.h"
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#include <cstdlib>
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#include <unistd.h>
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#include <string>
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int get_listen_fd()
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{
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char* const listen_pid = std::getenv("LISTEN_PID");
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char* const listen_fds = std::getenv("LISTEN_FDS");
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if (!listen_pid || !listen_fds)
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return 0;
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pid_t pid = Acore::StringTo<int>(listen_pid).value_or(0);
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if (pid != getpid())
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return 0;
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int fds = Acore::StringTo<int>(listen_fds).value_or(0);
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if (fds <= 0)
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return 0;
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if (fds > 1)
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LOG_WARN("network", "Multiple file descriptors received from systemd socket activation, only the first will be used");
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return 3;
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}
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#else
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// On non-Linux systems, just return 0 (no socket activation)
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int get_listen_fd()
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{
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return 0;
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}
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#endif
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