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https://github.com/RGBCube/serenity
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c3351d4b9f
Instead of getting credentials from Process::current(), we now require that they be provided as input to the various VFS functions. This ensures that an atomic set of credentials is used throughout an entire VFS operation.
30 lines
879 B
C++
30 lines
879 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/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_PROCESS_BIG_LOCK_ACQUIRED(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().to_truncated_seconds();
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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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