glibc/hurd/port2fd.c
Roland McGrath 50b076f4dd 1999-09-18 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/wait4.c (__wait4): When proc_wait returns EAGAIN,
	return zero to indicate no children died yet (assuming WNOHANG).

	* sysdeps/mach/hurd/setsid.c: #include <hurd/fd.h>.

1999-09-17  Roland McGrath  <roland@baalperazim.frob.com>

	* hurd/port2fd.c (_hurd_port2fd): Never change CTTYID port.

	* sysdeps/mach/hurd/setsid.c (__setsid): Fix return type -> pid_t.
	Return _hurd_pgrp instead of 0.
1999-09-19 20:46:22 +00:00

65 lines
2.2 KiB
C

/* Copyright (C) 1994, 1997, 1999 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#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 is 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 = 0;
if (old != MACH_PORT_NULL)
__mach_port_deallocate (__mach_task_self (), old);
}
_hurd_port_set (&d->ctty, ctty);
}