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
|
/* libkdiskfs implementation of fs.defs: file_get_translator_cntl
Copyright (C) 1992, 1993, 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"
#include "fs_S.h"
/* Implement file_get_translator_cntl as described in <hurd/fs.defs>. */
kern_return_t
diskfs_S_file_get_translator_cntl (struct protid *cred,
mach_port_t *ctl,
mach_msg_type_name_t *ctltype)
{
struct node *np;
error_t error;
if (!cred)
return EOPNOTSUPP;
np = cred->po->np;
pthread_mutex_lock (&np->lock);
error = fshelp_isowner (&np->dn_stat, cred->user);
if (!error)
error = fshelp_fetch_control (&np->transbox, ctl);
if (!error && *ctl == MACH_PORT_NULL)
error = ENXIO;
if (!error)
*ctltype = MACH_MSG_TYPE_MOVE_SEND;
pthread_mutex_unlock (&np->lock);
return error;
}
|
