ladybird/Kernel/Syscalls/rename.cpp
sin-ack d5fbdf1866 Kernel+LibC+LibCore: Implement renameat(2)
Now with the ability to specify different bases for the old and new
paths.
2022-12-11 19:55:37 -07:00

25 lines
807 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringView.h>
#include <Kernel/FileSystem/VirtualFileSystem.h>
#include <Kernel/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$rename(Userspace<Syscall::SC_rename_params const*> user_params)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::cpath));
auto params = TRY(copy_typed_from_user(user_params));
auto old_path = TRY(get_syscall_path_argument(params.old_path));
auto new_path = TRY(get_syscall_path_argument(params.new_path));
TRY(VirtualFileSystem::the().rename(credentials(), TRY(custody_for_dirfd(params.olddirfd)), old_path->view(), TRY(custody_for_dirfd(params.newdirfd)), new_path->view()));
return 0;
}
}