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8b95423b50
This class parses UNIX file permissions definitions in numeric (octal) or symbolic (ugoa+rwx) format and can apply them on a given file mode.
40 lines
1 KiB
C++
40 lines
1 KiB
C++
/*
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* Copyright (c) 2021, Xavier Defrang <xavier.defrang@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Error.h>
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#include <AK/String.h>
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#include <sys/stat.h>
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namespace Core {
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class FilePermissionsMask {
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public:
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static ErrorOr<FilePermissionsMask> parse(StringView string);
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static ErrorOr<FilePermissionsMask> from_numeric_notation(StringView string);
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static ErrorOr<FilePermissionsMask> from_symbolic_notation(StringView string);
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FilePermissionsMask()
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: m_clear_mask(0)
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, m_write_mask(0)
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{
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}
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FilePermissionsMask& assign_permissions(mode_t mode);
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FilePermissionsMask& add_permissions(mode_t mode);
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FilePermissionsMask& remove_permissions(mode_t mode);
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mode_t apply(mode_t mode) const { return m_write_mask | (mode & ~m_clear_mask); }
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mode_t clear_mask() const { return m_clear_mask; }
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mode_t write_mask() const { return m_write_mask; }
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private:
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mode_t m_clear_mask; // the bits that will be cleared
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mode_t m_write_mask; // the bits that will be set
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};
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}
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