/* * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org> * * SPDX-License-Identifier: BSD-2-Clause */ #include <Kernel/FileSystem/OpenFileDescription.h> #include <Kernel/Process.h> namespace Kernel { ErrorOr<FlatPtr> Process::sys$get_dir_entries(int fd, Userspace<void*> user_buffer, size_t user_size) { VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this); TRY(require_promise(Pledge::stdio)); if (user_size > NumericLimits<ssize_t>::max()) return EINVAL; auto description = TRY(open_file_description(fd)); auto buffer = TRY(UserOrKernelBuffer::for_user_buffer(user_buffer, static_cast<size_t>(user_size))); auto count = TRY(description->get_dir_entries(buffer, user_size)); return count; } }