freebsd-skq/lib/libc/gen/_pthread_stubs.c
alfred f67e4a8fc7 Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and
associated changes that had to happen to make this possible as well as
bugs fixed along the way.

  Bring in required TLI library routines to support this.

  Since we don't support TLI we've essentially copied what NetBSD
  has done, adding a thin layer to emulate direct the TLI calls
  into BSD socket calls.

  This is mostly from Sun's tirpc release that was made in 1994,
  however some fixes were backported from the 1999 release (supposedly
  only made available after this porting effort was underway).

  The submitter has agreed to continue on and bring us up to the
  1999 release.

  Several key features are introduced with this update:
    Client calls are thread safe. (1999 code has server side thread
    safe)
    Updated, a more modern interface.

  Many userland updates were done to bring the code up to par with
  the recent RPC API.

  There is an update to the pthreads library, a function
  pthread_main_np() was added to emulate a function of Sun's threads
  library.

  While we're at it, bring in NetBSD's lockd, it's been far too
  long of a wait.

  New rpcbind(8) replaces portmap(8) (supporting communication over
  an authenticated Unix-domain socket, and by default only allowing
  set and unset requests over that channel). It's much more secure
  than the old portmapper.

  Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded
  to support TI-RPC and to support IPV6.

  Umount(8) is also fixed to unmount pathnames longer than 80 chars,
  which are currently truncated by the Kernel statfs structure.

Submitted by: Martin Blapp <mb@imp.ch>
Manpage review: ru
Secure RPC implemented by: wpaul
2001-03-19 12:50:13 +00:00

237 lines
5.7 KiB
C

/*
* Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <signal.h>
#include <pthread.h>
#include <pthread_np.h>
/*
* Weak symbols: All libc internal usage of these functions should
* use the weak symbol versions (_pthread_XXX). If libpthread is
* linked, it will override these functions with (non-weak) routines.
* The _pthread_XXX functions are provided solely for internal libc
* usage to avoid unwanted cancellation points and to differentiate
* between application locks and libc locks (threads holding the
* latter can't be allowed to exit/terminate).
*/
#pragma weak _pthread_cond_init=_pthread_cond_init_stub
#pragma weak _pthread_cond_signal=_pthread_cond_signal_stub
#pragma weak _pthread_cond_wait=_pthread_cond_wait_stub
#pragma weak _pthread_getspecific=_pthread_getspecific_stub
#pragma weak _pthread_key_create=_pthread_key_create_stub
#pragma weak _pthread_key_delete=_pthread_key_delete_stub
#pragma weak _pthread_main_np=_pthread_main_np_stub
#pragma weak _pthread_mutex_destroy=_pthread_mutex_destroy_stub
#pragma weak _pthread_mutex_init=_pthread_mutex_init_stub
#pragma weak _pthread_mutex_lock=_pthread_mutex_lock_stub
#pragma weak _pthread_mutex_trylock=_pthread_mutex_trylock_stub
#pragma weak _pthread_mutex_unlock=_pthread_mutex_unlock_stub
#pragma weak _pthread_mutexattr_init=_pthread_mutexattr_init_stub
#pragma weak _pthread_mutexattr_destroy=_pthread_mutexattr_destroy_stub
#pragma weak _pthread_mutexattr_settype=_pthread_mutexattr_settype_stub
#pragma weak _pthread_once=_pthread_once_stub
#pragma weak _pthread_self=_pthread_self_stub
#pragma weak _pthread_rwlock_init=_pthread_rwlock_init_stub
#pragma weak _pthread_rwlock_rdlock=_pthread_rwlock_rdlock_stub
#pragma weak _pthread_rwlock_tryrdlock=_pthread_rwlock_tryrdlock_stub
#pragma weak _pthread_rwlock_trywrloc=_pthread_rwlock_trywrlock_stub
#pragma weak _pthread_rwlock_unlock=_pthread_rwlock_unlock_stub
#pragma weak _pthread_rwlock_wrlock=_pthread_rwlock_wrlock_stub
#pragma weak _pthread_setspecific=_pthread_setspecific_stub
#pragma weak _pthread_sigmask=_pthread_sigmask_stub
/* Define a null pthread structure just to satisfy _pthread_self. */
struct pthread {
};
static struct pthread main_thread;
int
_pthread_cond_init_stub(pthread_cond_t *cond,
const pthread_condattr_t *cond_attr)
{
return (0);
}
int
_pthread_cond_signal_stub(pthread_cond_t *cond)
{
return (0);
}
int
_pthread_cond_wait_stub(pthread_cond_t *cond,
pthread_mutex_t *mutex)
{
return (0);
}
void *
_pthread_getspecific_stub(pthread_key_t key)
{
return (NULL);
}
int
_pthread_key_create_stub(pthread_key_t *key, void (*destructor) (void *))
{
return (0);
}
int
_pthread_key_delete_stub(pthread_key_t key)
{
return (0);
}
int
_pthread_main_np_stub()
{
return (-1);
}
int
_pthread_mutex_destroy_stub(pthread_mutex_t *mattr)
{
return (0);
}
int
_pthread_mutex_init_stub(pthread_mutex_t *mutex, const pthread_mutexattr_t *mattr)
{
return (0);
}
int
_pthread_mutex_lock_stub(pthread_mutex_t *mutex)
{
return (0);
}
int
_pthread_mutex_trylock_stub(pthread_mutex_t *mutex)
{
return (0);
}
int
_pthread_mutex_unlock_stub(pthread_mutex_t *mutex)
{
return (0);
}
int
_pthread_mutexattr_init_stub(pthread_mutexattr_t *mattr)
{
return (0);
}
int
_pthread_mutexattr_destroy_stub(pthread_mutexattr_t *mattr)
{
return (0);
}
int
_pthread_mutexattr_settype_stub(pthread_mutexattr_t *mattr, int type)
{
return (0);
}
int
_pthread_once_stub(pthread_once_t *once_control, void (*init_routine) (void))
{
return (0);
}
int
_pthread_rwlock_init_stub(pthread_rwlock_t *rwlock,
const pthread_rwlockattr_t *attr)
{
return (0);
}
int
_pthread_rwlock_destroy_stub(pthread_rwlock_t *rwlock)
{
return (0);
}
int
_pthread_rwlock_rdlock_stub(pthread_rwlock_t *rwlock)
{
return (0);
}
int
_pthread_rwlock_tryrdlock_stub(pthread_rwlock_t *rwlock)
{
return (0);
}
int
_pthread_rwlock_trywrlock_stub(pthread_rwlock_t *rwlock)
{
return (0);
}
int
_pthread_rwlock_unlock_stub(pthread_rwlock_t *rwlock)
{
return (0);
}
int
_pthread_rwlock_wrlock_stub(pthread_rwlock_t *rwlock)
{
return (0);
}
pthread_t
_pthread_self_stub(void)
{
return (&main_thread);
}
int
_pthread_setspecific_stub(pthread_key_t key, const void *value)
{
return (0);
}
int
_pthread_sigmask_stub(int how, const sigset_t *set, sigset_t *oset)
{
/*
* No need to use _sigprocmask, since we know that the threads
* library is not linked in.
*
*/
return (sigprocmask(how, set, oset));
}