diff options
Diffstat (limited to 'hurd/privports.c')
-rw-r--r-- | hurd/privports.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/hurd/privports.c b/hurd/privports.c new file mode 100644 index 0000000000..f760e37e6e --- /dev/null +++ b/hurd/privports.c @@ -0,0 +1,60 @@ +/* Copyright (C) 1993, 1994 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 <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 (host_priv_t *host_priv_ptr, device_t *device_master_ptr) +{ + if (! _hurd_host_priv) + { + 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) + { + mach_port_mod_refs (mach_task_self (), + _hurd_host_priv, MACH_PORT_RIGHT_SEND, 1); + *host_priv_ptr = _hurd_host_priv; + } + if (device_master_ptr) + { + mach_port_mod_refs (mach_task_self (), + _hurd_device_master, MACH_PORT_RIGHT_SEND, 1); + *device_master_ptr = _hurd_device_master; + } + return KERN_SUCCESS; +} |