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/* 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)
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