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25 lines
727 B
C++
25 lines
727 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 <Kernel/FileSystem/OpenFileDescription.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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ErrorOr<FlatPtr> Process::sys$get_dir_entries(int fd, Userspace<void*> user_buffer, size_t user_size)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(stdio);
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if (user_size > NumericLimits<ssize_t>::max())
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return EINVAL;
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auto description = TRY(fds().open_file_description(fd));
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auto buffer = TRY(UserOrKernelBuffer::for_user_buffer(user_buffer, static_cast<size_t>(user_size)));
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auto count = TRY(description->get_dir_entries(buffer, user_size));
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return count;
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}
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}
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