mirror of
https://github.com/SerenityOS/serenity
synced 2024-09-16 06:30:41 +00:00
63 lines
2 KiB
C++
63 lines
2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Kenneth Myhra <kennethmyhra@serenityos.org>
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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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#include <AK/Vector.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DirIterator.h>
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#include <LibCore/FilePermissionsMask.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio rpath fattr"));
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StringView mode;
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Vector<StringView> paths;
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bool recursive = false;
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Core::ArgsParser args_parser;
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args_parser.add_option(recursive, "Change file modes recursively", "recursive", 'R');
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args_parser.add_positional_argument(mode, "File mode in octal or symbolic notation", "mode");
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args_parser.add_positional_argument(paths, "Paths to file", "paths");
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args_parser.parse(arguments);
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auto mask = TRY(Core::FilePermissionsMask::parse(mode));
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Function<ErrorOr<void>(StringView const&)> update_path_permissions = [&](StringView const& path) -> ErrorOr<void> {
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auto stat = TRY(Core::System::lstat(path));
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if (S_ISLNK(stat.st_mode)) {
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// Symlinks don't get processed unless they are explicitly listed on the command line.
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if (!paths.contains_slow(path))
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return {};
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// The chmod syscall changes the file that a link points to, so we will have to get
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// the correct mode to base our modifications on.
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stat = TRY(Core::System::stat(path));
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}
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TRY(Core::System::chmod(path, mask.apply(stat.st_mode)));
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if (recursive && S_ISDIR(stat.st_mode)) {
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Core::DirIterator it(path, Core::DirIterator::Flags::SkipParentAndBaseDir);
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while (it.has_next())
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TRY(update_path_permissions(it.next_full_path()));
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}
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return {};
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};
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for (auto const& path : paths) {
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TRY(update_path_permissions(path));
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}
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return 0;
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}
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