ladybird/Kernel/Syscalls/realpath.cpp
Timothy Flynn c911781c21 Everywhere: Remove needless trailing semi-colons after functions
This is a new option in clang-format-16.
2023-07-08 10:32:56 +01:00

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1.0 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringView.h>
#include <Kernel/FileSystem/Custody.h>
#include <Kernel/FileSystem/VirtualFileSystem.h>
#include <Kernel/Tasks/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$realpath(Userspace<Syscall::SC_realpath_params const*> user_params)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::rpath));
auto params = TRY(copy_typed_from_user(user_params));
auto path = TRY(get_syscall_path_argument(params.path));
auto custody = TRY(VirtualFileSystem::the().resolve_path(credentials(), path->view(), current_directory()));
auto absolute_path = TRY(custody->try_serialize_absolute_path());
size_t ideal_size = absolute_path->length() + 1;
auto size_to_copy = min(ideal_size, params.buffer.size);
TRY(copy_to_user(params.buffer.data, absolute_path->characters(), size_to_copy));
// Note: we return the whole size here, not the copied size.
return ideal_size;
}
}