update from main archive 970209 cvs/libc-970210

1997-02-09 02:59  Ulrich Drepper  <drepper@cygnus.com>

	* version.h (VERSION): Bump to 2.0.2.

	* posix/Makefile (routines): Add getopt_init.
	* posix/getopt.c: Don't get environment variable with nonoption
	flags here.  Depend on __getopt_nonoption_flags variable filled
	somewhere else.  This is necessary since the variable must be
	removed even when getopt isn't used in case exec(2) gets called.
	* posix/getopt_init.c: New file.  Initialize __getopt_nonoption_flags
	and remove environment variable.
	* sysdeps/i386/init-first.c: Call __getopt_clean_environment.
	* sysdeps/mach/hurd/i386/init-first.c: Likewise.
	* sysdeps/stub/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/init-first.c: Likewise.

	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Recognize
	AT_PAGESZ entry in auxiliary vector and store value in _dl_pagesize.

	* sysdeps/generic/crypt-entry.h: Return EOPNOTSUPP when DES
	encryption is wanted.

	* libio/vsnprintf.c: If MAXLEN is 0 return 0.
	* stdio/vsnprintf.c: Likewise.
	Reported by Philip Blundell <pjb27@cam.ac.uk>.

1997-02-07 17:43  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/sysd-stdio.c: Include <errno.h>.
	Change PTR to void *.
	* sysdeps/posix/vdprintf.c: Change PTR to void *.
	Reported by Brian Oxley <boxley%dev.cm.ssb.com@clipper.ssb.com>.

1997-02-07 17:41  Philip Blundell <pjb27@cam.ac.uk>

	* sysdeps/unix/sysv/linux/socketbits.h: Fix typo.

1997-02-06 13:49  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* rellns-sh: No need to check for existance of first parameter.

1997-02-06 14:50  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/posix/getcwd.c (__getcwd): Fix resource leaks.  Reported
	by David Holland <dholland@eecs.harvard.edu>.

1997-02-06 14:38  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sunrpc/clnt_tcp.c (readtcp): Pass copy of timeout value to
	select, in case it is modified by the latter.
	* sunrpc/clnt_udp.c (clntudp_call): Likewise.
	* sunrpc/pmap_rmt.c (clnt_broadcast): Likewise.
	* sunrpc/svc_tcp.c (readtcp): Likewise.

	* sunrpc/svc_authux.c (_svcauth_unix): Fix type of area_gids
	array.

	* sunrpc/authuxprot.c (xdr_authunix_parms): Check size of uid_t
	and gid_t.

	* sunrpc/auth_unix.c (authunix_validate): Fix type of second
	argument.

1997-02-06 14:29  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/Makefile (extra-objs): Don't zap previous value.
	* Makefile (before-compile): Likewise.  Don't add gnu/lib-names.h
	twice.

1997-02-06 14:19  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/m68k/brk.c: Add workaround for
	braindamage (sigh!).

1997-02-06 17:10  Jim Meyering  <meyering@asic.sc.ti.com>

	* manual/memory.texi: Correct `copystring' example for obstacks.

1997-02-06 14:10  Ulrich Drepper  <drepper@cygnus.com>

	* Makeconfig: Don't use [:lower:] and [:upper:] in tr since old
	GNU tr don't grok it.

1997-02-03 21:13  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/socketbits.h [__GNUC__<2] (struct cmsghdr):
	Don't use GNU C extensions.
	(CMSG_DATA): Use portable definition.

1997-02-05 05:58  Ulrich Drepper  <drepper@cygnus.com>

	* elf/ldd.bash.in: Add test for read permission and print appropriate
	message.  Change warning and error messages to print "ldd: " at start.
	* elf/ldd.sh.in: Likewise.

	* stdlib/Makefile (routines): Add atoll.
	* stdlib/atoll.c: New file.
	* stdlib/stdlib.h: Add prototype and optimization for atoll.

	* stdlib/a64l.c: Update copyright.
	* stdlib/abs.c: Likewise.
	* stdlib/atof.c: Likewise.
	* stdlib/atoi.c: Likewise.
	* stdlib/atol.c: Likewise.
	* stdlib/bsearch.c: Likewise.
	* stdlib/exit.c: Likewise.
	* stdlib/fpioconst.c: Likewise.
	* stdlib/fpioconst.h: Likewise.
	* stdlib/jrand48.c: Likewise.
	* stdlib/jrand48_r.c: Likewise.
	* stdlib/labs.c: Likewise.
	* stdlib/lcong48.c: Likewise.
	* stdlib/lcong48_r.c: Likewise.
	* stdlib/llabs.c: Likewise.
	* stdlib/lrand48.c: Likewise.
	* stdlib/lrand48_r.c: Likewise.
	* stdlib/mblen.c: Likewise.
	* stdlib/mbstowcs.c: Likewise.
	* stdlib/mbtowc.c: Likewise.
	* stdlib/mp_clz_tab.c: Likewise.
	* stdlib/mrand48.c: Likewise.
	* stdlib/mrand48_r.c: Likewise.
	* stdlib/msort.c: Likewise.
	* stdlib/nrand48.c: Likewise.
	* stdlib/nrand48_r.c: Likewise.
	* stdlib/qsort.c: Likewise.
	* stdlib/rpmatch.c: Likewise.
	* stdlib/seed48.c: Likewise.
	* stdlib/seed48_r.c: Likewise.
	* stdlib/srand48.c: Likewise.
	* stdlib/srand48_r.c: Likewise.
	* stdlib/strtod.c: Likewise.
	* stdlib/wcstombs.c: Likewise.
	* stdlib/wctomb.c: Likewise.

1997-02-05 05:08  Ulrich Drepper  <drepper@cygnus.com>

	* stdlib/mp_clz_tab.c (__clz_tab): Follow change in GMP and define
	as const.

1997-02-04 23:57  Fila Kolodny  <fila@ibi.com>

	* sysdeps/unix/sysv/linux/socketbits.h: Define __need_NULL before
	including <stddef.h>.

1997-02-03 20:01  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* time/Makefile (tzbases, tzlinks): New.
	(tzfiles): Changed to $(tzbases) $(tzlinks).
	($(tzfiles:%=$(objpfx)z.%): Make $(tzlinks) depend on $(tzbases).

1997-02-02 12:13  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* Makefile (install): Ignore error from ldconfig.

	* time/zic.c (mkdirs): Double check the error return of mkdir ().

1997-02-04 22:01  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/vfprintf.c: Prepare to use __va_copy for architectures
	like PPC where va_list is no integral type.

1997-02-04 15:27  Roma Ekzhanov  <ekzhanov@paragraph.com>

	* posix/getopt.c (exchange): Don't allocate nonoption_flags array
	if nonoption_flags_len == -1.

1 files changed, 19 insertions, 16 deletions

diff --git a/stdio/vsnprintf.c b/stdio/vsnprintf.c
index 5de157dc44..ddb1dfc9c0 100644
--- a/stdio/vsnprintf.c
+++ b/stdio/vsnprintf.c
@@ -1,22 +1,21 @@
-/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1992, 1995, 1997 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 <ansidecl.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
@@ -33,7 +32,11 @@ __vsnprintf (char *s, size_t maxlen, const char *format, va_list arg)
   int done;
   FILE f;
 
-  memset((PTR) &f, 0, sizeof(f));
+  /* We have to handle the case of MAXLEN == 0 special.  */
+  if (maxlen == 0)
+    return 0;
+
+  memset((void *) &f, 0, sizeof(f));
   f.__magic = _IOMAGIC;
   f.__mode.__write = 1;
   /* The buffer size is one less than MAXLEN