64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/* Copyright (C) 1994-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <hurd.h>
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#include <hurd/fd.h>
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#include <hurd/signal.h>
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#include <hurd/term.h>
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#include <fcntl.h>
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/* Store PORT in file descriptor D, doing appropriate ctty magic.
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FLAGS are as for `open'; only O_IGNORE_CTTY and O_CLOEXEC are meaningful.
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D should be locked, and will not be unlocked. */
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void
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_hurd_port2fd (struct hurd_fd *d, io_t dport, int flags)
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{
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mach_port_t cttyid;
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io_t ctty = MACH_PORT_NULL;
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if (!(flags & O_IGNORE_CTTY))
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__USEPORT (CTTYID,
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({
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if (port != MACH_PORT_NULL && /* Do we have a ctty? */
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! __term_getctty (dport, &cttyid)) /* Could this be it? */
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{
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__mach_port_deallocate (__mach_task_self (), cttyid);
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/* This port is capable of being a controlling tty.
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Is it ours? */
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if (cttyid == port)
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__term_open_ctty (dport, _hurd_pid, _hurd_pgrp, &ctty);
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/* XXX if this port is our ctty, but we are not doing
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ctty style i/o because term_become_ctty barfed,
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what to do? */
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}
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0;
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}));
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/* Install PORT in the descriptor cell, leaving it locked. */
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{
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mach_port_t old
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= _hurd_userlink_clear (&d->port.users) ? d->port.port : MACH_PORT_NULL;
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d->port.port = dport;
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d->flags = (flags & O_CLOEXEC) ? FD_CLOEXEC : 0;
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if (old != MACH_PORT_NULL)
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__mach_port_deallocate (__mach_task_self (), old);
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}
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_hurd_port_set (&d->ctty, ctty);
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}
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