1: /* Copyright (C) 1994, 1997, 1999, 2007 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    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:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <hurd.h>
   20: #include <hurd/fd.h>
   21: #include <hurd/signal.h>
   22: #include <hurd/term.h>
   23: #include <fcntl.h>
   24: 
   25: /* Store PORT in file descriptor D, doing appropriate ctty magic.
   26:    FLAGS are as for `open'; only O_IGNORE_CTTY is meaningful.
   27:    D should be locked, and will not be unlocked.  */
   28: 
   29: void
   30: _hurd_port2fd (struct hurd_fd *d, io_t dport, int flags)
   31: {
   32:   mach_port_t cttyid;
   33:   io_t ctty = MACH_PORT_NULL;
   34: 
   35:   if (!(flags & O_IGNORE_CTTY))
   36:     __USEPORT (CTTYID,
   37:                ({
   38:                  if (port != MACH_PORT_NULL && /* Do we have a ctty? */
   39:                      ! __term_getctty (dport, &cttyid))       /* Could this be it? */
   40:                    {
   41:                      __mach_port_deallocate (__mach_task_self (), cttyid);
   42:                      /* This port is capable of being a controlling tty.
   43:                         Is it ours?  */
   44:                      if (cttyid == port)
   45:                        __term_open_ctty (dport, _hurd_pid, _hurd_pgrp, &ctty);
   46:                      /* XXX if this port is our ctty, but we are not doing
   47:                         ctty style i/o because term_become_ctty barfed,
   48:                         what to do?  */
   49:                    }
   50:                  0;
   51:                }));
   52: 
   53:   /* Install PORT in the descriptor cell, leaving it locked.  */
   54:   {
   55:     mach_port_t old
   56:       = _hurd_userlink_clear (&d->port.users) ? d->port.port : MACH_PORT_NULL;
   57:     d->port.port = dport;
   58:     d->flags = (flags & O_CLOEXEC) ? FD_CLOEXEC : 0;
   59:     if (old != MACH_PORT_NULL)
   60:       __mach_port_deallocate (__mach_task_self (), old);
   61:   }
   62: 
   63:   _hurd_port_set (&d->ctty, ctty);
   64: }