ladybird/Kernel/Syscalls/ioctl.cpp

26 lines
692 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Userspace.h>
#include <Kernel/FileSystem/OpenFileDescription.h>
#include <Kernel/Process.h>
#include <LibC/sys/ioctl_numbers.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$ioctl(int fd, unsigned request, FlatPtr arg)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
auto description = TRY(fds().open_file_description(fd));
if (request == FIONBIO) {
description->set_blocking(TRY(copy_typed_from_user(Userspace<int const*>(arg))) == 0);
return 0;
}
TRY(description->file().ioctl(*description, request, arg));
return 0;
}
}