Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 63 insertions, 0 deletions

diff --git a/REORG.TODO/hurd/port2fd.c b/REORG.TODO/hurd/port2fd.c
new file mode 100644
index 0000000000..83e7b9c47e
--- /dev/null
+++ b/REORG.TODO/hurd/port2fd.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 1994-2017 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
+   <http://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);
+}