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[glibc.git] / hurd / privports.c
blobef6388bd9d50c970564ba05895a6664a60a087f0
1 /* Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #include <hurd.h>
21 /* The program might set these if it is the initial task
22 bootstrapped by the microkernel. */
24 mach_port_t _hurd_host_priv, _hurd_device_master;
27 kern_return_t
28 get_privileged_ports (host_priv_t *host_priv_ptr, device_t *device_master_ptr)
30 if (! _hurd_host_priv)
32 error_t err;
34 if (_hurd_ports)
35 /* We have gotten some initial ports, so perhaps
36 we have a proc server to talk to. */
37 err = __USEPORT (PROC, __proc_getprivports (port,
38 &_hurd_host_priv,
39 &_hurd_device_master));
40 else
41 return MACH_SEND_INVALID_DEST;
43 if (err)
44 return err;
47 if (host_priv_ptr)
49 mach_port_mod_refs (mach_task_self (),
50 _hurd_host_priv, MACH_PORT_RIGHT_SEND, 1);
51 *host_priv_ptr = _hurd_host_priv;
53 if (device_master_ptr)
55 mach_port_mod_refs (mach_task_self (),
56 _hurd_device_master, MACH_PORT_RIGHT_SEND, 1);
57 *device_master_ptr = _hurd_device_master;
59 return KERN_SUCCESS;