/* Copyright (C) 1993-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <hurd.h>

/* The program might set these if it is the initial task

   bootstrapped by the microkernel.  */

mach_port_t _hurd_host_priv, _hurd_device_master;

kern_return_t

__get_privileged_ports (mach_port_t *host_priv_ptr,

			device_t *device_master_ptr)

{

  if ((host_priv_ptr && _hurd_host_priv == MACH_PORT_NULL)

      || (device_master_ptr && _hurd_device_master == MACH_PORT_NULL))

    {

      error_t err;

      if (_hurd_ports)

	/* We have gotten some initial ports, so perhaps

	   we have a proc server to talk to.  */

	err = __USEPORT (PROC, __proc_getprivports (port,

						    &_hurd_host_priv,

						    &_hurd_device_master));

      else

	return MACH_SEND_INVALID_DEST;

      if (err)

	return err;

    }

  if (host_priv_ptr)

    {

      error_t err = _hurd_host_priv == MACH_PORT_NULL ? 0

	: __mach_port_mod_refs (mach_task_self (),

				_hurd_host_priv, MACH_PORT_RIGHT_SEND, +1);

      if (err)

	return err;

      *host_priv_ptr = _hurd_host_priv;

    }

  if (device_master_ptr)

    {

      error_t err = _hurd_device_master == MACH_PORT_NULL ? 0

	: __mach_port_mod_refs (mach_task_self (),

				_hurd_device_master, MACH_PORT_RIGHT_SEND, +1);

      if (err)

	return err;

      *device_master_ptr = _hurd_device_master;

    }

  return KERN_SUCCESS;

}

weak_alias (__get_privileged_ports, get_privileged_ports)