907af2ad02
This replaces the output parameter (which is bad API design). As a
side effect, it fixes the bad [[gnu::pure]] attribute added by commit
a636d2127
which caused optimizing compilers to miscompile calls to
that function. "Pure" functions can be assumed to have no output
arguments, so the compiler can assume the function doesn't modify
them.
Closes https://github.com/MusicPlayerDaemon/MPD/issues/1282
65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/*
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* Copyright 2003-2021 The Music Player Daemon Project
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* http://www.musicpd.org
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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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_PERMISSION_HXX
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#define MPD_PERMISSION_HXX
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#include "config.h"
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#include <optional>
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struct ConfigData;
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class SocketAddress;
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static constexpr unsigned PERMISSION_NONE = 0;
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static constexpr unsigned PERMISSION_READ = 1;
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static constexpr unsigned PERMISSION_ADD = 2;
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static constexpr unsigned PERMISSION_CONTROL = 4;
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static constexpr unsigned PERMISSION_ADMIN = 8;
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static constexpr unsigned PERMISSION_PLAYER = 16;
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/**
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* @return the permissions for the given password or std::nullopt if
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* the password is not accepted
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*/
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[[gnu::pure]]
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std::optional<unsigned>
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GetPermissionFromPassword(const char *password) noexcept;
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[[gnu::const]]
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unsigned
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getDefaultPermissions() noexcept;
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#ifdef HAVE_UN
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[[gnu::const]]
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unsigned
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GetLocalPermissions() noexcept;
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#endif
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#ifdef HAVE_TCP
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[[gnu::pure]]
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int
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GetPermissionsFromAddress(SocketAddress address) noexcept;
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#endif
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void
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initPermissions(const ConfigData &config);
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#endif
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