update from main archive 961109cvs/libc-961110

Sun Nov 10 02:37:15 1996  Ulrich Drepper  <drepper@cygnus.com>

	* inet/gethstent_r.c: Update copyright.
	* nss/getXXbyYY_r.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* nss/getXXent_r.c: Likewise.
	* nss/nss_files/files-XXX.c: Likewise.
	* nss/nss_files/files-netgroup.c: Likewise.
	* nss/nss_files/files-parse.c: Likewise.

	* nss/getXXent_r.c: Change implementation.  It's not necessary to
	call all setXXent functions.  Just find first available and
	when necessary let getXXent_r call the others.

	* nss/nss_files/files-XXX.c: Make really reentrant.  Now calls
	of getXXent and getXXbyYY can be mixed.  The cursor for traversing
	the database with getXXent will be remembered.

	* stdlib/test-canon.c (cwd): Change size to PATH_MAX.

Sat Nov  9 15:34:48 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/Dist: Add sys/mtio.h.
	* sysdeps/unix/sysv/linux/sys/mtio.h: New file.

	* signal/signal.h [__USE_BSD]: Add prototype for siggetmask.

Fri Nov  8 13:29:30 1996  Ulrich Drepper  <drepper@cygnus.com>

	* ctype/ctype.h (__isascii): Don't test for seventh bit not to be
	set.  Instead for none beside the first seven bits to be set.
	X/Open allows the argument to be an `int' value.
	Reported by Alain Williams <addw@phcomp.co.uk>.
	(toascii, isascii): Define macro also when __USE_XOPEN.

	* sysdeps/posix/fpathconf.c: Use fstatfs to compute NAME_MAX, not
	PATH_MAX.

Thu Nov  7 03:04:29 1996  Ulrich Drepper  <drepper@cygnus.com>

	* nss/getXXXent_r.c (SETFUNC_NAME): Reset `nip' after loop to
	NULL so that GETFUNC will see first entry.
	(ENDFUNC_NAME): Likewise.

	Rewrite Netgroups implementation to avoid global data.
	* inet/netgroup.h: Add definition of name_list and struct
	__netgrent.
	Add prototypes for internal netgroup functions.
	* nss/nss_files/files-netgroup.c (_nss_files_setnetgrent): Take
	extra argument and use the included data instead of global vars.
	(_nss_files_endnetgrent): Likewise.
	(_nss_netgroup_parseline): Change to be static and use data
	included in the RESULT structure.
	* inet/getnetgrent_r.c (startp): Move into setup function.
	(known_groups, needed_groups): new part of the __netgrent sruct.
	(freememory): Take extra argument and use included data.
	(__internal_endnetgrent): Likewise.
	(internal_setnetgrent): Renamed to __internal_setnetgrent_reuse
	and take extra argument.
	(__internal_setnetgrent): New function.  Call
	__internal_setnetgrent_reuse after calling free_memory.
	(setnetgrent): Only call __internal_setnetgrent.
	(__getnetgrent_r): Split into two functions.  __getnetgrent_r
	calls __internal_getnetgrent after locking.
	(innetgr): Use dynamic data only.  I.e., innetgr now is fully
	reentrant.

Thu Nov  7 00:15:14 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/stub/setenv.c: Correct typo: unseenv -> unsetenv.
	Reported by Joshua Cowan <jcowan@jcowan.reslife.okstate.edu>.

Wed Nov  6 13:13:37 1996  Ulrich Drepper  <drepper@cygnus.com>

	* manual/creature.texi: Document that _GNU_SOURCE is no longer the
	default when no *_SOURCE macro is given.
	Reported by Karsten Weiss <karsten@addx.au.s.shuttle.de>.
	* NOTES: remade from manual/creature.texi.
	* manual/libc.texinfo: Add back line about GPL translation which
	somehow got lost.

	* Make-dist (dist.tar): Depend on README being updated.

	* rellns-sh: Correct thinko in removing leading /.
	Reported by Andreas Jaeger <aj@arthur.pfalz.de>.

	* pwd/fgetpwent_r.c: Recognize lines containing only names starting
	with `+' or `-' in parser.
	* grp/fgetgrent_r.c: Likewise.
	* shadow/sgetspent_r.c: Likewise.
	* nss/nss_files/files-spwd.c: Don't accept entries starting with
	`+' or `-'.

	* sysdeps/stub/lchown.c: New file.

26 files changed, 622 insertions, 328 deletions

diff --git a/ChangeLog b/ChangeLog
index 1d4d396c90..d8b11bc64b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,96 @@
+Sun Nov 10 02:37:15 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* inet/gethstent_r.c: Update copyright.
+	* nss/getXXbyYY_r.c: Likewise.
+	* nss/nsswitch.c: Likewise.
+	* nss/getXXent_r.c: Likewise.
+	* nss/nss_files/files-XXX.c: Likewise.
+	* nss/nss_files/files-netgroup.c: Likewise.
+	* nss/nss_files/files-parse.c: Likewise.
+
+	* nss/getXXent_r.c: Change implementation.  It's not necessary to
+	call all setXXent functions.  Just find first available and
+	when necessary let getXXent_r call the others.
+
+	* nss/nss_files/files-XXX.c: Make really reentrant.  Now calls
+	of getXXent and getXXbyYY can be mixed.  The cursor for traversing
+	the database with getXXent will be remembered.
+
+	* stdlib/test-canon.c (cwd): Change size to PATH_MAX.
+
+Sat Nov  9 15:34:48 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* sysdeps/unix/sysv/linux/Dist: Add sys/mtio.h.
+	* sysdeps/unix/sysv/linux/sys/mtio.h: New file.
+
+	* signal/signal.h [__USE_BSD]: Add prototype for siggetmask.
+
+Fri Nov  8 13:29:30 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* ctype/ctype.h (__isascii): Don't test for seventh bit not to be
+	set.  Instead for none beside the first seven bits to be set.
+	X/Open allows the argument to be an `int' value.
+	Reported by Alain Williams <addw@phcomp.co.uk>.
+	(toascii, isascii): Define macro also when __USE_XOPEN.
+
+	* sysdeps/posix/fpathconf.c: Use fstatfs to compute NAME_MAX, not
+	PATH_MAX.
+
+Thu Nov  7 03:04:29 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* nss/getXXXent_r.c (SETFUNC_NAME): Reset `nip' after loop to
+	NULL so that GETFUNC will see first entry.
+	(ENDFUNC_NAME): Likewise.
+
+	Rewrite Netgroups implementation to avoid global data.
+	* inet/netgroup.h: Add definition of name_list and struct
+	__netgrent.
+	Add prototypes for internal netgroup functions.
+	* nss/nss_files/files-netgroup.c (_nss_files_setnetgrent): Take
+	extra argument and use the included data instead of global vars.
+	(_nss_files_endnetgrent): Likewise.
+	(_nss_netgroup_parseline): Change to be static and use data
+	included in the RESULT structure.
+	* inet/getnetgrent_r.c (startp): Move into setup function.
+	(known_groups, needed_groups): new part of the __netgrent sruct.
+	(freememory): Take extra argument and use included data.
+	(__internal_endnetgrent): Likewise.
+	(internal_setnetgrent): Renamed to __internal_setnetgrent_reuse
+	and take extra argument.
+	(__internal_setnetgrent): New function.  Call
+	__internal_setnetgrent_reuse after calling free_memory.
+	(setnetgrent): Only call __internal_setnetgrent.
+	(__getnetgrent_r): Split into two functions.  __getnetgrent_r
+	calls __internal_getnetgrent after locking.
+	(innetgr): Use dynamic data only.  I.e., innetgr now is fully
+	reentrant.
+
+Thu Nov  7 00:15:14 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* sysdeps/stub/setenv.c: Correct typo: unseenv -> unsetenv.
+	Reported by Joshua Cowan <jcowan@jcowan.reslife.okstate.edu>.
+
+Wed Nov  6 13:13:37 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* manual/creature.texi: Document that _GNU_SOURCE is no longer the
+	default when no *_SOURCE macro is given.
+	Reported by Karsten Weiss <karsten@addx.au.s.shuttle.de>.
+	* NOTES: remade from manual/creature.texi.
+	* manual/libc.texinfo: Add back line about GPL translation which
+	somehow got lost.
+
+	* Make-dist (dist.tar): Depend on README being updated.
+
+	* rellns-sh: Correct thinko in removing leading /.
+	Reported by Andreas Jaeger <aj@arthur.pfalz.de>.
+
+	* pwd/fgetpwent_r.c: Recognize lines containing only names starting
+	with `+' or `-' in parser.
+	* grp/fgetgrent_r.c: Likewise.
+	* shadow/sgetspent_r.c: Likewise.
+	* nss/nss_files/files-spwd.c: Don't accept entries starting with
+	`+' or `-'.
+
 Wed Nov  6 04:30:26 1996  Ulrich Drepper  <drepper@cygnus.com>
 
 	* sysdeps/unix/sysv/linux/syscalls.list: Add weak alias llseek for
@@ -19,6 +112,7 @@ Tue Nov  5 23:38:28 1996  Ulrich Drepper  <drepper@cygnus.com>
 	if __USE_XOPEN_EXTENDED is defined.
 
 	* io/Makefile (routines): Add lchown.
+	* sysdeps/stub/lchown.c: New file.
 
 	* io/sys/poll.h: Add definition of POLLWRNORM.
 
diff --git a/Make-dist b/Make-dist
index cc8fdacf6e..f5ec28855c 100644
--- a/Make-dist
+++ b/Make-dist
@@ -191,7 +191,7 @@ configure: configure.in aclocal.m4; $(autoconf-it)
 dist: $(tardir).tar.gz
 
 subdir_dist: dist.tar
-dist.tar: $(tardir) $(+tsrcs)
+dist.tar: README $(tardir) $(+tsrcs)
 	tar chvf $@ $(addprefix $(tardir)/,$(filter-out $(tardir),$^))
 
 $(tardir).tar: dist.tar subdir_dist
diff --git a/NOTES b/NOTES
index 2af653c5f9..4477110d97 100644
--- a/NOTES
+++ b/NOTES
@@ -53,12 +53,26 @@ self-contained way.
 
  - Macro: _SVID_SOURCE
      If you define this macro, functionality derived from SVID is
-     included as well as the ANSI C, POSIX.1, and POSIX.2 material.
+     included as well as the ANSI C, POSIX.1, POSIX.2, and X/Open
+     material.
+
+ - Macro: _XOPEN_SOURCE
+     If you define these macro, functionality described in the X/Open
+     Portability Guide is included.  This is an superset of the POSIX.1
+     and POSIX.2 functionality and in fact `_POSIX_SOURCE' and
+     `_POSIX_C_SOURCE' get automatically be defined.
+
+     But as the great unifaction of all Unices there is also
+     functionality only available in BSD and SVID is included.
+
+     If the macro `_XOPEN_SOURCE_EXTENDED' is also defined, even more
+     functionality is available.  The extra functions will make all
+     functions available which are necessary for the X/Open Unix brand.
 
  - Macro: _GNU_SOURCE
      If you define this macro, everything is included: ANSI C, POSIX.1,
-     POSIX.2, BSD, SVID, and GNU extensions.  In the cases where POSIX.1
-     conflicts with BSD, the POSIX definitions take precedence.
+     POSIX.2, BSD, SVID, X/Open, and GNU extensions.  In the cases where
+     POSIX.1 conflicts with BSD, the POSIX definitions take precedence.
 
      If you want to get the full effect of `_GNU_SOURCE' but make the
      BSD definitions take precedence over the POSIX definitions, use
@@ -73,9 +87,23 @@ self-contained way.
      compiler or linker.  *Note:* If you forget to do this, you may get
      very strange errors at run time.
 
+ - Macro: _REENTRANT,_THREAD_SAFE
+     If you define one this macro, reentrant versions of several
+     functions get declared.  Some of the functions are specified in
+     POSIX.1c but many others are only available on a few other systems
+     or are unique to GNU libc.  The problem is that the
+     standardization of the thread safe C library interface still is
+     behind.
+
+     Unlike on some other systems no special version of the C library
+     must be used for linking.  There is only one version but while
+     compiling this it must have been specified to compile as thread
+     safe.
+
    We recommend you use `_GNU_SOURCE' in new programs.  If you don't
 specify the `-ansi' option to GCC and don't define any of these macros
-explicitly, the effect is the same as defining `_GNU_SOURCE'.
+explicitly, the effect is the same as defining `_POSIX_C_SOURCE' to 2
+and `_POSIX_SOURCE', `_SVID_SOURCE', and `_BSD_SOURCE' to 1.
 
    When you define a feature test macro to request a larger class of
 features, it is harmless to define in addition a feature test macro for
diff --git a/ctype/ctype.h b/ctype/ctype.h
index f4048b3dc7..64ca26e04f 100644
--- a/ctype/ctype.h
+++ b/ctype/ctype.h
@@ -78,8 +78,8 @@ extern __const int *__ctype_toupper; /* Case conversions.  */
 #define	__isctype(c, type) \
   (__ctype_b[(int) (c)] & (unsigned short int) type)
 
-#define	__isascii(c)	(((c) & (1 << 7)) == 0)	/* If high bit is set.  */
-#define	__toascii(c)	((c) & 0x7f) /* Mask off high bit.  */
+#define	__isascii(c)	(((c) & ~0x7f) == 0)	/* If C is a 7 bit value.  */
+#define	__toascii(c)	((c) & 0x7f)		/* Mask off high bits.  */
 
 #define	__tolower(c)	((int) __ctype_tolower[(int) (c)])
 #define	__toupper(c)	((int) __ctype_toupper[(int) (c)])
@@ -126,7 +126,7 @@ extern int toascii __P ((int __c));
 
 #endif /* Use SVID or use misc.  */
 
-#if defined(__USE_SVID) || defined(__USE_XOPEN)
+#if defined(__USE_SVID) || defined(__USE_MISC) || defined(__USE_XOPEN)
 /* These are the same as `toupper' and `tolower'.  */
 __exctype (_toupper);
 __exctype (_tolower);
@@ -152,7 +152,7 @@ __exctype (_tolower);
 #define	tolower(c)	__tolower(c)
 #define	toupper(c)	__toupper(c)
 
-#if defined(__USE_SVID) || defined(__USE_MISC)
+#if defined(__USE_SVID) || defined(__USE_MISC) || defined(__USE_XOPEN)
 #define	isascii(c)	__isascii(c)
 #define	toascii(c)	__toascii(c)
 #endif
diff --git a/grp/fgetgrent_r.c b/grp/fgetgrent_r.c
index e9a2c25a5a..dd74cfcd70 100644
--- a/grp/fgetgrent_r.c
+++ b/grp/fgetgrent_r.c
@@ -1,20 +1,20 @@
 /* Copyright (C) 1991, 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 <ctype.h>
 #include <grp.h>
@@ -33,11 +33,20 @@ struct grent_data {};
 LINE_PARSER
 (,
  STRING_FIELD (result->gr_name, ISCOLON, 0);
- STRING_FIELD (result->gr_passwd, ISCOLON, 0);
- if (result->gr_name[0] == '+' || result->gr_name[0] == '-')
-   INT_FIELD_MAYBE_NULL (result->gr_gid, ISCOLON, 0, 10, , 0)
+ if (line[0] == '\0'
+     && (result->gr_name[0] == '+' || result->gr_name[0] == '-'))
+   {
+     result->gr_passwd = NULL;
+     result->gr_gid = 0;
+   }
  else
-   INT_FIELD (result->gr_gid, ISCOLON, 0, 10,)
+   {
+     STRING_FIELD (result->gr_passwd, ISCOLON, 0);
+     if (result->gr_name[0] == '+' || result->gr_name[0] == '-')
+       INT_FIELD_MAYBE_NULL (result->gr_gid, ISCOLON, 0, 10, , 0)
+     else
+       INT_FIELD (result->gr_gid, ISCOLON, 0, 10,)
+   }
  )
 
 
diff --git a/inet/gethstent_r.c b/inet/gethstent_r.c
index f07601dfad..2c9f151a12 100644
--- a/inet/gethstent_r.c
+++ b/inet/gethstent_r.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., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, 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 <netdb.h>
 
diff --git a/inet/getnetgrent_r.c b/inet/getnetgrent_r.c
index 7288dbeb4c..1848ad7f35 100644
--- a/inet/getnetgrent_r.c
+++ b/inet/getnetgrent_r.c
@@ -18,6 +18,7 @@ Boston, MA 02111-1307, USA.  */
 
 #include <libc-lock.h>
 #include <netdb.h>
+#include <string.h>
 #include "netgroup.h"
 #include "nsswitch.h"
 
@@ -28,18 +29,10 @@ __libc_lock_define_initialized (static, lock)
 /* This handle for the NSS data base is shared between all
    set/get/endXXXent functions.  */
 static service_user *nip;
-/* Remember the first service_entry, it's always the same.  */
-static service_user *startp;
 
-/* A netgroup can consist of names of other netgroups.  We have to
-   track which netgroups were read and which still have to be read.  */
-struct name_list
-{
-  const char *name;
-  struct name_list *next;
-};
-struct name_list *known_groups;
-struct name_list *needed_groups;
+/* The whole information for the set/get/endnetgrent functions are
+   kept in this structure.  */
+static struct __netgrent dataset;
 
 
 /* The lookup function for the first entry of this service.  */
@@ -52,7 +45,10 @@ extern int __nss_netgroup_lookup (service_user **nip, const char *name,
 static enum nss_status
 setup (void **fctp, const char *func_name, int all)
 {
+  /* Remember the first service_entry, it's always the same.  */
+  static service_user *startp = NULL;
   int no_more;
+
   if (startp == NULL)
     {
       no_more = __nss_netgroup_lookup (&nip, func_name, fctp);
@@ -74,29 +70,29 @@ setup (void **fctp, const char *func_name, int all)
 
 /* Free used memory.  */
 static void
-free_memory (void)
+free_memory (struct __netgrent *data)
 {
-  while (known_groups != NULL)
+  while (data->known_groups != NULL)
     {
-      struct name_list *tmp = known_groups;
-      known_groups = known_groups->next;
+      struct name_list *tmp = data->known_groups;
+      data->known_groups = data->known_groups->next;
       free (tmp->name);
       free (tmp);
     }
 
-  while (needed_groups != NULL)
+  while (data->needed_groups != NULL)
     {
-      struct name_list *tmp = needed_groups;
-      needed_groups = needed_groups->next;
+      struct name_list *tmp = data->needed_groups;
+      data->needed_groups = data->needed_groups->next;
       free (tmp->name);
       free (tmp);
     }
 }
 
 static int
-internal_setnetgrent (const char *group)
+__internal_setnetgrent_reuse (const char *group, struct __netgrent *datap)
 {
-  enum nss_status (*fct) (const char *);
+  enum nss_status (*fct) (const char *, struct __netgrent *);
   enum nss_status status = NSS_STATUS_UNAVAIL;
   struct name_list *new_elem;
   int