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/*
* 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/Tasks/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$link(Userspace<Syscall::SC_link_params const*> user_params)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::cpath));
auto params = TRY(copy_typed_from_user(user_params));
auto old_path = TRY(try_copy_kstring_from_user(params.old_path));
auto new_path = TRY(try_copy_kstring_from_user(params.new_path));
TRY(VirtualFileSystem::the().link(credentials(), old_path->view(), new_path->view(), current_directory()));
return 0;
}
ErrorOr<FlatPtr> Process::sys$symlink(Userspace<Syscall::SC_symlink_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 target = TRY(get_syscall_path_argument(params.target));
auto linkpath = TRY(get_syscall_path_argument(params.linkpath));
TRY(VirtualFileSystem::the().symlink(credentials(), target->view(), linkpath->view(), TRY(custody_for_dirfd(params.dirfd))));
return 0;
}
}
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