update from main archive 961030cvs/libc-961031

Thu Oct 31 00:01:39 1996  Ulrich Drepper  <drepper@cygnus.com>

	* signal/Makefile (routines): Add sigwait.
	* signal/signal.h: Add prototype for sigwait.
	* sysdeps/posix/sigwait.c: New file.  Implementation of sigwait
	function from POSIX.1c.
	* sysdeps/stub/sigwait.c: New file.  Stub version of sigwait.

Wed Oct 30 02:01:17 1996  Richard Henderson  <rth@tamu.edu>

	* sunrpc/xdr_float.c (xdr_float): Handle sizeof(float)!=sizeof(long),
	but don't bother going farther than sizeof(float)==sizeof(int).
	(xdr_double): Handle little-endian machines!  Handle sizeof(double)
	!= 2*sizeof(long), though again don't bother with more than int.

Thu Oct 29 16:09:42 1996  Craig Metz  <cmetz@inner.net>

	* sysdeps/posix/getaddrinfo.c: Use buffer limits for inet_ntop
	function.

Tue Oct 29 12:37:22 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules: Create symbolic links for linking in $(libdir).
	(make-link): Use absolute path for destination if this is not in
	the same directory.

	* elf/rtld.c (dl_main): When verifying don't check the name of
	the dynamic linker.

	* shlib-versions: Change entries for Hurd specific libs from
	*-*-gnu* to *-*-gnu?* so that i586-pc-linux-gnu does not match
	these entries.

	* assert/assert.h: Reformat copyright.
	Change reference to ANSI into reference to ISO C.
	* ctype/ctype.h: Likewise.
	* errno.h: Likewise.
	* limits.h: Likewise.
	* math/math.h: Likewise.
	* setjmp/setjmp.h: Likewise.
	* stdio/stdio.h: Likewise.
	* libio/stdio.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* string/string.h: Likewise.
	* time/time.h: Likewise.

	* string/argz.h: Use __const is definitions.

	* elf/dlfcn.h: Use __const and __P.  Reformat copyright.
	* misc/err.h: Likewise.

	* wctype/wctype.h (wctrans_t): Use __const instead of const.

	* Makeconfig ($(common-objpfx)soversions.mk): Generate list of
	sonames for versioned libraries.
	* Makefile: Remove code to generate libc-version.h.
	Generate gnu/lib-names.h with info from soversions.mk.
	* features.h: Define __GLIBC__ and __GLIBC_MINOR__.

	* dirent/tst-seekdir.c: Initialize save3.
	* grp/testgrp.c: Initialize my_group.

	* grp/fgetgrent_r.c: Change interface to follow POSIX.1c.
	* grp/grp.h: Likewise.
	* nss/getXXbyYY.c: Likewise.
	* nss/getXXbyYY_r.c: Likewise.
	* nss/getXXent.c: Likewise.
	* nss/getXXent_r.c: Likewise.
	* pwd/fgetpwent_r.c: Likewise.
	* pwd/pwd.h: Likewise.
	* shadow/fgetspent_r.c: Likewise.
	* shadow/sgetspent.c: Likewise.
	* shadow/sgetspent_r.c: Likewise.
	* grp/fgetgrent.c: Adapt for change in interface of fgetgrent_r.
	* pwd/fgetpwent.c: Likewise, for fgetpwent_r.c.
	* shadow/fgetspent.c: Likewise, for fgetpwent_r.c.
	* resolv/netdb.h: Adapt prototypes for reentrant functions to
	follow POSIX.1c.
	* sunrpc/rpc/netdb.h: Likewise,
	* shadow/shadow.h: Likewise.

	* inet/getnetgrent_r.c: Follow change in pwd/grp function interface.

	* sysdeps/unix/getlogin_r.c: Return ERANGE when buffer is too small.

	* inet/herrno.c: Don't define __h_errno.  Only h_errno otherwise the
	ELF aliasing creates strange situations.
	* sysdeps/unix/sysv/linux/errnos.H: Define __set_errno as inline
	function.
	* sysdeps/unix/sysv/linux/i386/sysdep.S: Don't define __errno.
	* sysdeps/unix/sysv/linux/m68k/sysdep.S: Likewise.

	* libio/libio.h: Don't declare _IO_flockfile and _IO_funlockfile
	weak.

	* locale/programs/charmap.c: Add casts to prevent warnings.
	* locale/programs/linereader.h: Likewise.
	* locale/programs/ld-collate.c: Likewise.
	* locale/programs/stringtrans.c: Likewise.
	Change types for various variables to prevent warnings.
	* locale/programs/ld-ctype.c: Likewise.
	* locale/programs/linereader.h (lr_ungetc): Likewise.
	* locale/programs/charset.h (struct charset): Use `unsigned int'
	as type for width_default.
	* posix/regex.c: Change type of `this_reg' variables.
	* stdio-common/Makefile: Use -Wno-format for tstdiomisc.c.
	* stdio-common/bug5.c: De-ANSI-fy.  Use correct types for
	variables.
	* stdio-common/printf_fp.c: Initialize to_shift.
	* stdio-common/test_rdwr.c: Add cast.
	* stdio-common/vfprintf.c: Add casts and use correct types to
	prevent warnings.
	* stdio-common/vfscanf.c: Initialize str and strptr.
	* sysdeps/libm-ieee754/e_jnf.c: Use correct types to prevent warnings.
	* sysdeps/libm-ieee754/e_pow.c: Likewise.
	* sysdeps/libm-ieee754/e_powf.c: Likewise.
	* sysdeps/libm-ieee754/e_rem_pio2f.c: Likewise.
	* time/test-tz.c: Likewise.

	* manual/creature.texi: Document _REENTRANT and _THREAD_SAFE.
	* manual/libc.texinfo: Prevent makeinfo failure by avoiding
	libc.cp index.  This must be fixed.
	* manual/nss.texi: Adapt for correct POSIX.1c interface of
	reentrant functions.
	* manual/users.texi: Document netgroup functions.

	* po/es.po: Updated.
	* po/fr.po: Updated.

	* posix/fnmatch.c: Change to match libit version.

	* posix/unistd.h: Change prototype for ttyname_r to match POSIX.1c.
	* sysdep/posix/ttyname_r.c: Likewise.

	* stdlib/atexit.h (__new_exitfn): Add internal locking.
	* stdlib/exit.c: De-ANSI-fy.  Handle new ef_us value for flavor.
	* stdlib/exit.h: De-ANSI-fy.  Define new ef_us value for flavor.
	* stdlib/random.c (__srandom): Add internal locking.
	(__initstate): Likewise.
	(__setstate): Likewise.
	(__random): Likewise.

Mon Oct 28 22:28:37 1996  NIIBE Yutaka  <gniibe@mri.co.jp>

	* sysdeps/generic/crypt-entry.c (crypt_r): Use __set_errno.
	(crypt): Likewise.
	* resolv/gethnamaddr.c (gethostbyname2): Likewise.
	* sysdeps/generic/uname.c: Likewise.
	* sysdeps/posix/rename.c: Likewise.
	* sysdeps/stub/setrlimit.c: Likewise.

	* nss/nss_db/db-netgrp.c (_nss_db_setnetgrent): Fix typo.

Sun Oct 27 11:12:50 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* locale/programs/ld-collate.c (collate_order_elem): Fix format
	string.
	(collate_element_to): Cast field width argument to `int' for
	format string.
	(collate_symbol): Likewise.
	(collate_order_elem): Likewise.
	(collate_weight_bsymbol): Likewise.
	(collate_simple_weight): Likewise.

	* locale/programs/ld-time.c (STRARR_ELEM): Fix format string.

	* locale/programs/ld-ctype.c (ctype_class_newP): Add missing
	argument for format string.
	(ctype_map_newP): Likewise.
	(set_class_defaults): Fix format string.

	* locale/programs/localedef.c (construct_output_path): Putting an
	explicit \0 into the format string does not work, use %c.

Sat Oct 26 20:38:36 1996  Richard Henderson  <rth@tamu.edu>

	* Makerules: Install all shared libraries in $(slibdir).

	* login/Makefile: Build libutil.so in others pass after
	libc.so is created.

	* misc/mntent.h: Include <paths.h> for _PATH_MNTTAB & _PATH_MOUNTED.

	* string/stratcliff.c: Allocate 3 pages instead of one, then use
	mprotect so that we know that the adjacent pages are inaccessible.

	* resource/sys/resource.h: Move all structures and enums to ...
	* sysdeps/generic/resourcebits.h: ... here ...
	* sysdeps/unix/bsd/sun/sunos4/resourcebits.h: ... and here.
	* sysdeps/unix/sysv/linux/alpha/resourcebits.h: Remove.
	* sysdeps/unix/sysv/linux/i386/resourcebits.h: Remove.
	* sysdeps/unix/sysv/linux/m68k/resourcebits.h: Remove.
	* sysdeps/unix/sysv/linux/mips/resourcebits.h: Remove.
	* sysdeps/unix/sysv/linux/resourcebits.h: New file.  Use kernel
	header for RLIMIT_* definitions.  The members of struct rlimit
	are longs.


Thu Oct 24 17:43:34 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* MakeTAGS (sysdep-dirs): Fix typo.

Wed Oct 23 03:45:22 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Makefile (headers): Don't mention libc-version.h.
	(install-others): ...but here.

	* time/strptime.c: Recognize %s, %u, %g, and %G format.
 	nothing is found.  This guarantees all subsequent calls behave
	* sysdeps/unix/sysv/linux/syscalls.list: Change function name for
	* io/getwd.c (getwd) [! PATH_MAX]: Don't assume that the user's
	buffer is any longer than the amount necessary to hold the
	filename; the Hurd getcwd uses the *entire* contents of the
	buffer, however long it is specified to be.
	* posix/getconf.c: De-ANSI-fy.  Recognize POSIX.2 constant names.
	since these do not depend on the platform.

1 files changed, 34 insertions, 11 deletions

diff --git a/manual/nss.texi b/manual/nss.texi
index b2dc886..6d9d831 100644
--- a/manual/nss.texi
+++ b/manual/nss.texi
@@ -57,6 +57,7 @@ The databases available in the NSS are
 @cindex ethers
 @cindex group
 @cindex hosts
+@cindex netgroup
 @cindex network
 @cindex protocols
 @cindex passwd
@@ -71,6 +72,8 @@ Ethernet numbers,
 Groups of users, @pxref{Group Database}.
 @item hosts
 Host names and numbers, @pxref{Host Names}.
+@item netgroup
+Network wide list of host and users, @pxref{Netgroup Database}.
 @item network
 Network names and numbers, @pxref{Networks Database}.
 @item protocols
@@ -89,8 +92,7 @@ Shadow user passwords,
 
 @noindent
 There will be some more added later (@code{aliases}, @code{automount},
-@code{bootparams}, @code{netgroup}, @code{netmasks}, and
-@code{publickey}).
+@code{bootparams}, @code{netmasks}, and @code{publickey}).
 
 @node NSS Configuration File, NSS Module Internals, NSS Basics, Name Service Switch
 @section The NSS Configuration File
@@ -122,7 +124,7 @@ the reaction on lookup result line @code{[NOTFOUND=return]}.
 @end itemize
 
 @menu
-* Services in the NSS configuration::  Service names in the NSS configuratin.
+* Services in the NSS configuration::  Service names in the NSS configuration.
 * Actions in the NSS configuration::  React approprite on the lookup result.
 * Notes on NSS Configuration File::  Things to take care about while
                                      configuring NSS.
@@ -256,6 +258,20 @@ all supported databases there is a default value so it should normally
 be possible to get the system running even if the file is corrupted or
 missing.
 
+@cindex default value, and NSS
+For the @code{hosts} and @code{network} databases the default value is
+@code{dns [!UNAVAIL=return] files}.  I.e., the system is prepared for
+the DNS service not to be available but if it is available the answer it
+returns is ultimative.
+
+For all other databases the default value is
+@code{compat [NOTFOUND=return] files}.  This solution give the best
+chance to be correct since NIS and file based lookup is used.  The
+@code{compat} service is available in a separate add-on to GNU C
+library, available in the same place you got the GNU C library source
+from.
+
+@cindex optimizing NSS
 A second point is that the user should try to optimize the lookup
 process.  The different service have different response times.  A simple
 file look up on a local file could be fast, but if the file is long and the
@@ -365,17 +381,19 @@ struct hostent *gethostbyname_r (const char *name,
 @end smallexample
 
 @noindent
-The actual prototype of the function is the NSS modules in this case is
+The actual prototype of the function in the NSS modules in this case is
 
 @smallexample
-int _nss_files_gethostbyname_r (const char *name,
-                                struct hostent *result_buf, char *buf,
-                                int buflen, int *h_errnop)
+enum nss_status _nss_files_gethostbyname_r (const char *name,
+                                            struct hostent *result_buf,
+                                            char *buf, int buflen,
+                                            int *h_errnop)
 @end smallexample
 
-I.e., the interface function is in fact the reentrant function with
-the change of the return value.  While the user-level function returns a
-pointer to the result the reentrant function return an @code{int} value:
+I.e., the interface function is in fact the reentrant function with the
+change of the return value.  While the user-level function returns a
+pointer to the result the reentrant function return an @code{enum
+nss_status} value:
 
 @cindex NSS_STATUS_TRYAGAIN
 @cindex NSS_STATUS_UNAVAIL
@@ -399,7 +417,12 @@ numeric value @code{1}
 Now you see where the action items of the @file{/etc/nsswitch.conf} file
 are used.
 
-The above function has somthing special which is missing for almost all
+If you study the source code you will find there is a fifth value:
+@code{NSS_STATUS_RETURN}.  This is an internal use only value, used by a
+few functions in places where none of the above value can be used.  If
+necessary the source code should be examined to learn about the details.
+
+The above function has something special which is missing for almost all
 the other module functions.  There is an argument @var{h_errnop}.  This
 points to a variable which will be filled with the error code in case
 the execution of the function fails for some reason.  The reentrant