ladybird/Kernel/Syscalls/rename.cpp
Andreas Kling 1123af361d Kernel: Convert Process::get_syscall_path_argument() to KString
This API now returns a KResultOr<NonnullOwnPtr<KString>> and allocation
failures should be propagated everywhere nicely. :^)
2021-05-29 20:18:57 +02:00

29 lines
832 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 {
KResultOr<int> Process::sys$rename(Userspace<const Syscall::SC_rename_params*> user_params)
{
REQUIRE_PROMISE(cpath);
Syscall::SC_rename_params params;
if (!copy_from_user(&params, user_params))
return EFAULT;
auto old_path = get_syscall_path_argument(params.old_path);
if (old_path.is_error())
return old_path.error();
auto new_path = get_syscall_path_argument(params.new_path);
if (new_path.is_error())
return new_path.error();
return VFS::the().rename(old_path.value()->view(), new_path.value()->view(), current_directory());
}
}