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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/FileSystem/FileDescription.h>
#include <Kernel/Process.h>
namespace Kernel {
KResultOr<FlatPtr> Process::sys$get_dir_entries(int fd, Userspace<void*> user_buffer, size_t user_size)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
REQUIRE_PROMISE(stdio);
if (user_size > NumericLimits<ssize_t>::max())
return EINVAL;
auto description = fds().file_description(fd);
if (!description)
return EBADF;
auto buffer = UserOrKernelBuffer::for_user_buffer(user_buffer, static_cast<size_t>(user_size));
if (!buffer.has_value())
return EFAULT;
auto result = description->get_dir_entries(buffer.value(), user_size);
if (result.is_error())
return result.error();
else
return result.release_value();
}
}
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