mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 03:12:44 +00:00
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
|
|
* Copyright (c) 2021, Xavier Defrang <xavier.defrang@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Error.h>
|
|
#include <AK/OwnPtr.h>
|
|
#include <sys/stat.h>
|
|
|
|
namespace Core {
|
|
|
|
class FilePermissionsMask {
|
|
public:
|
|
static ErrorOr<FilePermissionsMask> parse(StringView string);
|
|
static ErrorOr<FilePermissionsMask> from_numeric_notation(StringView string);
|
|
static ErrorOr<FilePermissionsMask> from_symbolic_notation(StringView string);
|
|
|
|
FilePermissionsMask()
|
|
: m_clear_mask(0)
|
|
, m_write_mask(0)
|
|
{
|
|
}
|
|
|
|
FilePermissionsMask& assign_permissions(mode_t mode);
|
|
FilePermissionsMask& add_permissions(mode_t mode);
|
|
FilePermissionsMask& remove_permissions(mode_t mode);
|
|
|
|
mode_t apply(mode_t mode) const
|
|
{
|
|
if (m_directory_or_executable_mask && (S_ISDIR(mode) || (mode & 0111) != 0))
|
|
mode = m_directory_or_executable_mask->apply(mode);
|
|
|
|
return m_write_mask | (mode & ~m_clear_mask);
|
|
}
|
|
mode_t clear_mask() const { return m_clear_mask; }
|
|
mode_t write_mask() const { return m_write_mask; }
|
|
|
|
FilePermissionsMask& directory_or_executable_mask()
|
|
{
|
|
if (!m_directory_or_executable_mask)
|
|
m_directory_or_executable_mask = make<FilePermissionsMask>();
|
|
|
|
return *m_directory_or_executable_mask;
|
|
}
|
|
|
|
private:
|
|
mode_t m_clear_mask; // the bits that will be cleared
|
|
mode_t m_write_mask; // the bits that will be set
|
|
|
|
// A separate mask, only for files that already have some executable bit set or directories.
|
|
OwnPtr<FilePermissionsMask> m_directory_or_executable_mask;
|
|
};
|
|
|
|
}
|