summaryrefslogtreecommitdiff
path: root/libtrivfs/migsupport.c
blob: 66c0348281ca0764c7eb289eb92c31fb77f0e203 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
/* 
   Copyright (C) 1994, 1995, 1996 Free Software Foundation

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program 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
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */

#include "priv.h"

struct trivfs_protid *
trivfs_begin_using_protid (mach_port_t port)
{
  if (trivfs_protid_nportclasses > 1)
    {
      struct port_info *pi = ports_lookup_port (0, port, 0);
      int i;
      for (i = 0; i < trivfs_protid_nportclasses; i++)
	if (pi->class == trivfs_protid_portclasses[i])
	  return (struct trivfs_protid *) pi;
      ports_port_deref ((void *)port);
      return 0;
    }
  else
    return ports_lookup_port (0, port, trivfs_protid_portclasses[0]);
}

void 
trivfs_end_using_protid (struct trivfs_protid *cred)
{
  if (cred)
    ports_port_deref (cred);
}

struct trivfs_control *
trivfs_begin_using_control (mach_port_t port)
{
  if (trivfs_cntl_nportclasses > 1)
    {
      struct port_info *pi = ports_lookup_port (0, port, 0);
      int i;
      for (i = 0; i < trivfs_cntl_nportclasses; i++)
	if (pi->class == trivfs_cntl_portclasses[i])
	  return (struct trivfs_control *) pi;
      ports_port_deref ((void *)port);
      return 0;
    }
  else
    return ports_lookup_port (0, port, trivfs_cntl_portclasses[0]);
}

void 
trivfs_end_using_control (struct trivfs_control *cred)
{
  if (cred)
    ports_port_deref (cred);
}