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
|
/* Copyright (C) 1994-2019 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
<https://www.gnu.org/licenses/>. */
#include <hurd.h>
#include <hurd/fd.h>
#include <hurd/signal.h>
#include <hurd/term.h>
#include <fcntl.h>
/* Store PORT in file descriptor D, doing appropriate ctty magic.
FLAGS are as for `open'; only O_IGNORE_CTTY and O_CLOEXEC are meaningful.
D should be locked, and will not be unlocked. */
void
_hurd_port2fd (struct hurd_fd *d, io_t dport, int flags)
{
mach_port_t cttyid;
io_t ctty = MACH_PORT_NULL;
if (!(flags & O_IGNORE_CTTY))
__USEPORT (CTTYID,
({
if (port != MACH_PORT_NULL /* Do we have a ctty? */
&& ! __term_getctty (dport, &cttyid))
/* Could this be it? */
{
__mach_port_deallocate (__mach_task_self (), cttyid);
/* This port is capable of being a controlling tty.
Is it ours? */
if (cttyid == port)
__term_open_ctty (dport, _hurd_pid, _hurd_pgrp, &ctty);
/* XXX if this port is our ctty, but we are not doing
ctty style i/o because term_become_ctty barfed,
what to do? */
}
0;
}));
/* Install PORT in the descriptor cell, leaving it locked. */
{
mach_port_t old
= _hurd_userlink_clear (&d->port.users) ? d->port.port : MACH_PORT_NULL;
d->port.port = dport;
d->flags = (flags & O_CLOEXEC) ? FD_CLOEXEC : 0;
if (old != MACH_PORT_NULL)
__mach_port_deallocate (__mach_task_self (), old);
}
_hurd_port_set (&d->ctty, ctty);
}
|
