diff options
Diffstat (limited to 'REORG.TODO/hurd/privports.c')
-rw-r--r-- | REORG.TODO/hurd/privports.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/REORG.TODO/hurd/privports.c b/REORG.TODO/hurd/privports.c new file mode 100644 index 0000000000..90467883a6 --- /dev/null +++ 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) |