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-rw-r--r--REORG.TODO/hurd/privports.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/REORG.TODO/hurd/privports.c b/REORG.TODO/hurd/privports.c
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+++ b/REORG.TODO/hurd/privports.c
@@ -0,0 +1,70 @@
+/* Copyright (C) 1993-2017 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>
+
+/* The program might set these if it is the initial task
+ bootstrapped by the microkernel. */
+
+mach_port_t _hurd_host_priv, _hurd_device_master;
+
+
+kern_return_t
+__get_privileged_ports (mach_port_t *host_priv_ptr,
+ device_t *device_master_ptr)
+{
+ if ((host_priv_ptr && _hurd_host_priv == MACH_PORT_NULL)
+ || (device_master_ptr && _hurd_device_master == MACH_PORT_NULL))
+ {
+ error_t err;
+
+ if (_hurd_ports)
+ /* We have gotten some initial ports, so perhaps
+ we have a proc server to talk to. */
+ err = __USEPORT (PROC, __proc_getprivports (port,
+ &_hurd_host_priv,
+ &_hurd_device_master));
+ else
+ return MACH_SEND_INVALID_DEST;
+
+ if (err)
+ return err;
+ }
+
+ if (host_priv_ptr)
+ {
+ error_t err = _hurd_host_priv == MACH_PORT_NULL ? 0
+ : __mach_port_mod_refs (mach_task_self (),
+ _hurd_host_priv, MACH_PORT_RIGHT_SEND, +1);
+ if (err)
+ return err;
+ *host_priv_ptr = _hurd_host_priv;
+ }
+
+ if (device_master_ptr)
+ {
+ error_t err = _hurd_device_master == MACH_PORT_NULL ? 0
+ : __mach_port_mod_refs (mach_task_self (),
+ _hurd_device_master, MACH_PORT_RIGHT_SEND, +1);
+ if (err)
+ return err;
+ *device_master_ptr = _hurd_device_master;
+ }
+
+ return KERN_SUCCESS;
+}
+weak_alias (__get_privileged_ports, get_privileged_ports)