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author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /mach/bootprivport.c | |
download | glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.zip glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.gz glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.bz2 |
initial import
Diffstat (limited to 'mach/bootprivport.c')
-rw-r--r-- | mach/bootprivport.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/mach/bootprivport.c b/mach/bootprivport.c new file mode 100644 index 0000000..85c6330 --- /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; +} |