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https://github.com/SerenityOS/serenity
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31 lines
888 B
C++
31 lines
888 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/StringView.h>
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#include <Kernel/FileSystem/VirtualFileSystem.h>
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#include <Kernel/Tasks/Process.h>
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namespace Kernel {
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ErrorOr<FlatPtr> Process::sys$utime(Userspace<char const*> user_path, size_t path_length, Userspace<const struct utimbuf*> user_buf)
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{
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VERIFY_NO_PROCESS_BIG_LOCK(this);
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TRY(require_promise(Pledge::fattr));
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auto path = TRY(get_syscall_path_argument(user_path, path_length));
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utimbuf buf;
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if (user_buf) {
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TRY(copy_from_user(&buf, user_buf));
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} else {
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auto now = kgettimeofday().truncated_seconds_since_epoch();
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// Not a bug!
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buf = { now, now };
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}
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TRY(VirtualFileSystem::the().utime(credentials(), path->view(), current_directory(), buf.actime, buf.modtime));
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return 0;
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}
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}
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