update from main archive 961217cvs/libc-961219cvs/libc-961218

Wed Dec 18 03:31:58 1996  Ulrich Drepper  <drepper@cygnus.com>

	* dirent/scandir.c: Undo change from Mon Dec  2 15:32:15 1996.
	The stream is private and usages outside glibc don't care about
	reentrancy.
	* io/fts.c: Likewise.
	* io/ftw.c: Likewise.
	* sysdeps/posix/getcwd.c: Likewise.
	* sysdeps/posix/ttyname.c: Likewise.
	* sysdeps/posix/ttyname_r.c: Likewise.
	* sysdeps/posix/glob.c: Likewise.

	* libio/iovsprintf.c: Add cast to prevent warning.
	* libio/iovsscanf.c: Likewise.

	* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
	to keep namespace clean.

	* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
	Add hooks and check functions from old GNU malloc.
	* new-malloc/malloc.h: Likewise.

	* nis/ypclnt.c: Remove prototype for xdr_free.
	* snrpc/rpc/xdr.h: Add prototype for xdr_free.

	* manual/nss.texi: Correct description of default values and don't
	meantion NSS as an add-on.

	* nss/grp-lookup.c: Provide default value as
	"compat [NOTFOUND=return] files".
	* nss/pwd-lookup.c: Likewise.
	* nss/spwd-lookup.c: Likewise.
	* nss/network-lookup.c: Correct default to
	"dns [!UNAVAIL=return] files".
	* nss/nsswitch.c: Change default-default value to "nis
	[NOTFOUND=return] files" since compat is only available for group,
	passwd, and shadow.

	* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
	a weak alias.
	* stdlib/stdlib.h: Add prototype for __on_exit.

	* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.

	* time/Makefile: Undo change from Sun Dec  8 06:56:49 1996.
	The new malloc now has mcheck.
	* time/ap.c: Likewise.

	* time/tzset.c (__tzset): Rename to __tzset_internal.
	(tzset): Rename to __tzset.  Make tzset a weak alias for __tzset.
	* time/localtime.c: Use __tzset_internal not __tzset.
	* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
	as __tzset to prevent namespace pollution.

	* wctype/iswctype.h (icwctype): Rename to __iswctype.  Make iswctype
	a weak alias of __iswctype.
	* wctype/wctype.h: Add prototype for __iswctype.
	(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
	iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
	Use __iswctype for the test, not iswctype.

1996-12-16  Paul Eggert  <eggert@twinsun.com>

	* hurd/hurd/sigpreempt.h
	(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
	hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
	hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
	hurd/hurdsig.c (_hurdsig_preempters):
	Renamed to fix spelling from `preempter' to `preemptor'.
	All uses changed.

1996-12-15  Paul Eggert  <eggert@twinsun.com>

	* ctime.c (ctime): Return asctime (localtime (t)), as the C
	standard requires.

Tue Dec 17 02:05:48 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
	value because Mach/cthreads uses the opposite convention from
	Posix/glibc.

Mon Dec 16 22:41:01 1996  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/fcloseall.c: Correct test of already_called.
	Reported by Thomas Bushnell, n/BSG.

Mon Dec 16 14:52:07 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* mach/lock-intern.h (__mutex_try_lock): New function.

Sun Dec 15 16:33:44 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
	defined, else XTABS.
	(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.

Sun Dec 15 11:56:19 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
	* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
	* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.

4 files changed, 75 insertions, 75 deletions

diff --git a/sysdeps/mach/hurd/jmp-unwind.c b/sysdeps/mach/hurd/jmp-unwind.c
index 46e4b6157d..2d5804c71e 100644
--- a/sysdeps/mach/hurd/jmp-unwind.c
+++ b/sysdeps/mach/hurd/jmp-unwind.c
@@ -1,21 +1,21 @@
 /* _longjmp_unwind -- Clean up stack frames unwound by longjmp.  Hurd version.
-Copyright (C) 1995, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   Copyright (C) 1995, 1996 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 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.
+   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.  */
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include <setjmp.h>
 #include <hurd/userlink.h>
@@ -44,10 +44,10 @@ _longjmp_unwind (jmp_buf env, int val)
   assert (! __spin_lock_locked (&ss->critical_section_lock));
   __spin_lock (&ss->critical_section_lock);
 
-  /* Remove local signal preempters being unwound past.  */
-  while (ss->preempters &&
-	 _JMPBUF_UNWINDS (env[0].__jmpbuf, ss->preempters))
-    ss->preempters = ss->preempters->next;
+  /* Remove local signal preemptors being unwound past.  */
+  while (ss->preemptors &&
+	 _JMPBUF_UNWINDS (env[0].__jmpbuf, ss->preemptors))
+    ss->preemptors = ss->preemptors->next;
 
   __spin_unlock (&ss->lock);
 
diff --git a/sysdeps/mach/hurd/setitimer.c b/sysdeps/mach/hurd/setitimer.c
index 0b2ace3f4c..6cad6eab2e 100644
--- a/sysdeps/mach/hurd/setitimer.c
+++ b/sysdeps/mach/hurd/setitimer.c
@@ -1,20 +1,20 @@
 /* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   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 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.
+   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.  */
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include <ansidecl.h>
 #include <stddef.h>
@@ -112,7 +112,7 @@ timer_thread (void)
 
 
 static sighandler_t
-restart_itimer (struct hurd_signal_preempter *preempter,
+restart_itimer (struct hurd_signal_preemptor *preemptor,
 		struct hurd_sigstate *ss,
 		int *signo, struct hurd_signal_detail *detail)
 {
@@ -170,18 +170,18 @@ setitimer_locked (const struct itimerval *new, struct itimerval *old,
     {
       /* Make sure the itimer thread is set up.  */
 
-      /* Set up a signal preempter global for all threads to
+      /* Set up a signal preemptor global for all threads to
 	 run `restart_itimer' each time a SIGALRM would arrive.  */
-      static struct hurd_signal_preempter preempter =
+      static struct hurd_signal_preemptor preemptor =
 	{
 	  __sigmask (SIGALRM), 0, 0,
 	  &restart_itimer,
 	};
       __mutex_lock (&_hurd_siglock);
-      if (! preempter.next && _hurdsig_preempters != &preempter)
+      if (! preemptor.next && _hurdsig_preemptors != &preemptor)
 	{
-	  preempter.next = _hurdsig_preempters;
-	  _hurdsig_preempters = &preempter;
+	  preemptor.next = _hurdsig_preemptors;
+	  _hurdsig_preemptors = &preemptor;
 	}
       __mutex_unlock (&_hurd_siglock);
 
diff --git a/sysdeps/mach/hurd/sigwait.c b/sysdeps/mach/hurd/sigwait.c
index b3916f83ae..b8e5ade84f 100644
--- a/sysdeps/mach/hurd/sigwait.c
+++ b/sysdeps/mach/hurd/sigwait.c
@@ -1,20 +1,20 @@
 /* Copyright (C) 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   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 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.
+   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.  */
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include <errno.h>
 #include <hurd.h>
@@ -30,13 +30,13 @@ __sigwait (const sigset_t *set, int *sig)
   struct hurd_sigstate *ss;
   sigset_t mask;
   int signo = 0;
-  struct hurd_signal_preempter preempter;
+  struct hurd_signal_preemptor preemptor;
   jmp_buf buf;
   mach_port_t wait;
   mach_msg_header_t msg;
-  
+
   sighandler_t
-    preempt_fun (struct hurd_signal_preempter *pe,
+    preempt_fun (struct hurd_signal_preemptor *pe,
 		 struct hurd_sigstate *ss,
 		 int *sigp,
 		 struct hurd_signal_detail *detail)
@@ -44,7 +44,7 @@ __sigwait (const sigset_t *set, int *sig)
       if (signo)
 	/* We've already been run; don't interfere. */
 	return SIG_ERR;
-      
+
       signo = *sigp;
 
       /* Make sure this is all kosher */
@@ -55,7 +55,7 @@ __sigwait (const sigset_t *set, int *sig)
 
       return pe->handler;
     }
-  
+
   void
     handler (int sig)
     {
@@ -68,10 +68,10 @@ __sigwait (const sigset_t *set, int *sig)
   if (set != NULL)
     /* Crash before locking */
     mask = *set;
-  
+
   ss = _hurd_self_sigstate ();
   __spin_lock (&ss->lock);
-  
+
   /* See if one of these signals is currently pending */
   if (ss->pending & mask)
     {
@@ -86,22 +86,22 @@ __sigwait (const sigset_t *set, int *sig)
     }
 
   /* Wait for one of them to show up */
-      
+
   if (!setjmp (buf))
     {
-      /* Make the preempter */
-      preempter.signals = mask;
-      preempter.first = 0;
-      preempter.last = -1;
-      preempter.preempter = preempt_fun;
-      preempter.handler = handler;
-  
-      /* Install this preempter */
-      preempter.next = ss->preempters;
-      ss->preempters = &preempter;
-  
+      /* Make the preemptor */
+      preemptor.signals = mask;
+      preemptor.first = 0;
+      preemptor.last = -1;
+      preemptor.preemptor = preempt_fun;
+      preemptor.handler = handler;
+
+      /* Install this preemptor */
+      preemptor.next = ss->preemptors;
+      ss->preemptors = &preemptor;
+
       __spin_unlock (&ss->lock);
-  
+
       /* Wait. */
       __mach_msg (&msg, MACH_RCV_MSG, 0, sizeof (msg), wait,
 		  MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
@@ -113,11 +113,11 @@ __sigwait (const sigset_t *set, int *sig)
 
       __spin_lock (&ss->lock);
 
-      /* Delete our preempter. */
-      assert (ss->preempters == &preempter);
-      ss->preempters = preempter.next;
+      /* Delete our preemptor. */
+      assert (ss->preemptors == &preemptor);
+      ss->preemptors = preemptor.next;
     }
-  
+
 
 all_done:
   /* Cause the pointless side-effect. */
diff --git a/sysdeps/mach/libc-lock.h b/sysdeps/mach/libc-lock.h
index e2caa82b9b..36bf2c1038 100644
--- a/sysdeps/mach/libc-lock.h
+++ b/sysdeps/mach/libc-lock.h
@@ -54,7 +54,7 @@ typedef struct __libc_lock_opaque__ __libc_lock_t;
 #define __libc_lock_lock(NAME) __mutex_lock (&(NAME))
 
 /* Lock the named lock variable.  */
-#define __libc_lock_trylock(NAME) __mutex_trylock (&(NAME))
+#define __libc_lock_trylock(NAME) (!__mutex_trylock (&(NAME)))
 
 /* Unlock the named lock variable.  */
 #define __libc_lock_unlock(NAME) __mutex_unlock (&(NAME))