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- /* Copyright (C) 1992, 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 <sys/stat.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <hurd.h>
- #include <hurd/port.h>
- #include "set-hooks.h"
- #include "hurdmalloc.h" /* XXX */
-
-
- struct hurd_port *_hurd_ports;
- unsigned int _hurd_nports;
- mode_t _hurd_umask;
-
- void _hurd_proc_init (char **argv);
-
- DEFINE_HOOK (_hurd_subinit, (void));
-
- /* Initialize the library data structures from the
- ints and ports passed to us by the exec server.
-
- PORTARRAY and INTARRAY are vm_deallocate'd. */
-
- void
- _hurd_init (int flags, char **argv,
- mach_port_t *portarray, size_t portarraysize,
- int *intarray, size_t intarraysize)
- {
- int i;
-
- _hurd_ports = malloc (portarraysize * sizeof (*_hurd_ports));
- if (_hurd_ports == NULL)
- __libc_fatal ("Can't allocate _hurd_ports\n");
- _hurd_nports = portarraysize;
-
- /* See what ports we were passed. */
- for (i = 0; i < portarraysize; ++i)
- _hurd_port_init (&_hurd_ports[i], portarray[i]);
-
- /* When the user asks for the bootstrap port,
- he will get the one the exec server passed us. */
- __task_set_special_port (__mach_task_self (), TASK_BOOTSTRAP_PORT,
- portarray[INIT_PORT_BOOTSTRAP]);
-
- /* Tell the proc server we exist, if it does. */
- if (portarray[INIT_PORT_PROC] != MACH_PORT_NULL)
- _hurd_proc_init (argv);
-
- if (intarraysize > INIT_UMASK)
- _hurd_umask = intarray[INIT_UMASK] & 0777;
- else
- _hurd_umask = CMASK;
-
- /* All done with init ints and ports. */
- __vm_deallocate (__mach_task_self (),
- (vm_address_t) intarray,
- intarraysize * sizeof (int));
- __vm_deallocate (__mach_task_self (),
- (vm_address_t) portarray,
- portarraysize * sizeof (mach_port_t));
-
- if (flags & EXEC_SECURE)
- /* XXX if secure exec, elide environment variables
- which the library uses and could be security holes.
- CORESERVER, COREFILE
- */ ;
-
- /* Call other things which want to do some initialization. These are not
- on the __libc_subinit hook because things there like to be able to
- assume the availability of the POSIX.1 services we provide. */
- RUN_HOOK (_hurd_subinit, ());
- }
-
- #include <hurd/signal.h>
-
- /* The user can do "int _hide_arguments = 1;" to make
- sure the arguments are never visible with `ps'. */
- int _hide_arguments, _hide_environment;
-
- /* Hook for things which should be initialized as soon as the proc
- server is available. */
- DEFINE_HOOK (_hurd_proc_subinit, (void));
-
- /* Do startup handshaking with the proc server just installed in _hurd_ports.
- Call _hurdsig_init to set up signal processing. */
-
- void
- _hurd_proc_init (char **argv)
- {
- mach_port_t oldmsg;
- struct hurd_userlink ulink;
- process_t procserver;
-
- /* Initialize the signal code; Mach exceptions will become signals. */
- _hurdsig_init ();
-
- /* The signal thread is now prepared to receive messages.
- It is safe to give the port to the proc server. */
-
- procserver = _hurd_port_get (&_hurd_ports[INIT_PORT_PROC], &ulink);
-
- /* Give the proc server our message port. */
- __proc_setmsgport (procserver, _hurd_msgport, &oldmsg);
- if (oldmsg != MACH_PORT_NULL)
- /* Deallocate the old msg port we replaced. */
- __mach_port_deallocate (__mach_task_self (), oldmsg);
-
- /* Tell the proc server where our args and environment are. */
- __proc_set_arg_locations (procserver,
- _hide_arguments ? 0 : (vm_address_t) argv,
- _hide_environment ? 0 : (vm_address_t) __environ);
-
- _hurd_port_free (&_hurd_ports[INIT_PORT_PROC], &ulink, procserver);
-
- /* Initialize proc server-assisted fault recovery for the signal thread. */
- _hurdsig_fault_init ();
-
- /* Call other things which want to do some initialization. These are not
- on the _hurd_subinit hook because things there assume that things done
- here, like _hurd_pid, are already initialized. */
- RUN_HOOK (_hurd_proc_subinit, ());
- }
-
- /* Called when we get a message telling us to change our proc server port. */
-
- error_t
- _hurd_setproc (process_t procserver)
- {
- error_t err;
- mach_port_t oldmsg;
-
- /* Give the proc server our message port. */
- if (err = __proc_setmsgport (procserver, _hurd_msgport, &oldmsg))
- return err;
- if (oldmsg != MACH_PORT_NULL)
- /* Deallocate the old msg port we replaced. */
- __mach_port_deallocate (__mach_task_self (), oldmsg);
-
- /* Tell the proc server where our args and environment are. */
- if (err = __proc_set_arg_locations (procserver,
- /* We don't know the ARGV location. */
- (vm_address_t) 0,
- _hide_environment ? 0 :
- (vm_address_t) __environ))
- return err;
-
- /* Those calls worked, so the port looks good. */
- _hurd_port_set (&_hurd_ports[INIT_PORT_PROC], procserver);
-
- {
- extern DEFINE_HOOK (_hurd_pgrp_changed_hook, (pid_t));
- pid_t oldpgrp = _hurd_pgrp;
-
- /* Call these functions again so they can fetch the
- new information from the new proc server. */
- RUN_HOOK (_hurd_proc_subinit, ());
-
- if (_hurd_pgrp != oldpgrp)
- /* Run things that want notification of a pgrp change. */
- RUN_HOOK (_hurd_pgrp_changed_hook, (_hurd_pgrp));
- }
-
- return 0;
- }
-