initial import

1 files changed, 64 insertions, 0 deletions

diff --git a/mach/bootprivport.c b/mach/bootprivport.c
new file mode 100644
index 0000000000..85c63309e7
--- /dev/null
+++ b/mach/bootprivport.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1993 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <mach.h>
+
+kern_return_t
+__mach_get_priv_ports (mach_port_t *host_priv_ptr,
+		       mach_port_t *device_master_ptr)
+{
+  kern_return_t err;
+  mach_port_t bootstrap, reply;
+
+  struct
+    {
+      mach_msg_header_t hdr;
+      mach_msg_type_t host_priv_type;
+      mach_port_t host_priv;
+      mach_msg_type_t dev_master_type;
+      mach_port_t dev_master;
+    } msg;
+
+  if (err = task_get_bootstrap_port (mach_task_self (), &bootstrap))
+    return err;
+
+  /* We cannot simply use a MiG-generated user stub to do this,
+     because the return message does not contain a return code datum.  */
+  reply = __mach_reply_port ();
+  msg.hdr.msgh_bits = MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND,
+				      MACH_MSG_TYPE_MAKE_SEND_ONCE);
+  msg.hdr.msgh_size = 0;
+  msg.hdr.msgh_remote_port = bootstrap;
+  msg.hdr.msgh_local_port = reply;
+  msg.hdr.msgh_kind = MACH_MSGH_KIND_NORMAL;
+  msg.hdr.msgh_id = 999999;
+  err = __mach_msg (&msg.hdr,
+		    MACH_SEND_MSG|MACH_RCV_MSG|MACH_RCV_TIMEOUT,
+		    sizeof (msg.hdr), sizeof (msg), reply,
+		    500, MACH_PORT_NULL); /* XXX timeout is arbitrary */
+  mach_port_deallocate (mach_task_self (), bootstrap);
+  mach_port_deallocate (mach_task_self (), reply);
+
+  if (err == KERN_SUCCESS)
+    {
+      *host_priv_ptr = msg.host_priv;
+      *device_master_ptr = msg.dev_master;
+    }
+
+  return err;
+}