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* [Bug libc/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding
[not found] <bug-430-131@http.sourceware.org/bugzilla/>
@ 2011-06-08 9:11 ` matthias.andree at gmx dot de
2011-06-08 9:12 ` matthias.andree at gmx dot de
` (4 subsequent siblings)
5 siblings, 0 replies; 6+ messages in thread
From: matthias.andree at gmx dot de @ 2011-06-08 9:11 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=430
--- Comment #15 from Matthias Andree <matthias.andree at gmx dot de> 2011-06-08 09:11:23 UTC ---
Regarding errno (or result code of getpwnam_r()) checking, this still doesn't
happen in glibc 2.11 (in violation of IEEE Std 1003.1 as of before this bug
report) and is not portable. FreeBSD 8-STABLE leaves errno at 0 in
temporary-failure-on-nis conditions (but retries for an extended but bounded
amount of time).
The Linux man-pages project effectively documents that there is no portable way
to distinguish temporary errors from an authoritative "user does not exist" -
which is likely why applications don't even bother.
Several documentation inconsistencies even in glibc exist, for instance, the
info file does not document errno use in getpwnam() at all, the external Linux
man-pages project documents errno, but is probably not authoritative for glibc.
An intesting practical consequence denying cron service is documented in
https://bugs.launchpad.net/bugs/27520 - cron starts before ypbind and caches
the getpwnam("someuser") == NULL result... this would not happen with
TRYAGAIN=forever.
Which leaves us with the solution I've requested in 2004, retry forever, for
lack of better solutions. Perhaps POSIXLY_CORRECT could make a difference to
this behaviour or the defaults, but the current sitation is the same as 7 years
ago, other newer operating system versions are also still non-conformant, so
that applications will continue to ignore errno when using getpwnam().
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* [Bug libc/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding
[not found] <bug-430-131@http.sourceware.org/bugzilla/>
2011-06-08 9:11 ` [Bug libc/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding matthias.andree at gmx dot de
@ 2011-06-08 9:12 ` matthias.andree at gmx dot de
2012-02-21 1:20 ` [Bug nis/430] " jsm28 at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 6+ messages in thread
From: matthias.andree at gmx dot de @ 2011-06-08 9:12 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=430
Matthias Andree <matthias.andree at gmx dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |ASSIGNED
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* [Bug nis/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding
[not found] <bug-430-131@http.sourceware.org/bugzilla/>
2011-06-08 9:11 ` [Bug libc/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding matthias.andree at gmx dot de
2011-06-08 9:12 ` matthias.andree at gmx dot de
@ 2012-02-21 1:20 ` jsm28 at gcc dot gnu.org
2014-02-16 19:30 ` jackie.rosen at hushmail dot com
` (2 subsequent siblings)
5 siblings, 0 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-02-21 1:20 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=430
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kukuk at suse dot de
Component|libc |nis
--- Comment #16 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-21 01:17:21 UTC ---
FWIW, this seems like a reasonable feature request to me, though I am not
expert in this area and have not confirmed if the issue still exists.
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* [Bug nis/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding
[not found] <bug-430-131@http.sourceware.org/bugzilla/>
` (2 preceding siblings ...)
2012-02-21 1:20 ` [Bug nis/430] " jsm28 at gcc dot gnu.org
@ 2014-02-16 19:30 ` jackie.rosen at hushmail dot com
2014-05-28 19:46 ` schwab at sourceware dot org
2014-05-28 21:39 ` jpyeron at pdinc dot us
5 siblings, 0 replies; 6+ messages in thread
From: jackie.rosen at hushmail dot com @ 2014-02-16 19:30 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=430
Jackie Rosen <jackie.rosen at hushmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jackie.rosen at hushmail dot com
--- Comment #17 from Jackie Rosen <jackie.rosen at hushmail dot com> ---
*** Bug 260998 has been marked as a duplicate of this bug. ***
Seen from the domain http://volichat.com
Page where seen: http://volichat.com/adult-chat-rooms
Marked for reference. Resolved as fixed @bugzilla.
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* [Bug nis/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding
[not found] <bug-430-131@http.sourceware.org/bugzilla/>
` (3 preceding siblings ...)
2014-02-16 19:30 ` jackie.rosen at hushmail dot com
@ 2014-05-28 19:46 ` schwab at sourceware dot org
2014-05-28 21:39 ` jpyeron at pdinc dot us
5 siblings, 0 replies; 6+ messages in thread
From: schwab at sourceware dot org @ 2014-05-28 19:46 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=430
Andreas Schwab <schwab at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|jackie.rosen at hushmail dot com |
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* [Bug nis/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding
[not found] <bug-430-131@http.sourceware.org/bugzilla/>
` (4 preceding siblings ...)
2014-05-28 19:46 ` schwab at sourceware dot org
@ 2014-05-28 21:39 ` jpyeron at pdinc dot us
5 siblings, 0 replies; 6+ messages in thread
From: jpyeron at pdinc dot us @ 2014-05-28 21:39 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=430
Jason Pyeron <jpyeron at pdinc dot us> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jpyeron at pdinc dot us
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[not found] <bug-430-131@http.sourceware.org/bugzilla/>
2011-06-08 9:11 ` [Bug libc/430] nsswitch.conf doesn't support TRYAGAIN=forever, giving bogus results when NIS is not responding matthias.andree at gmx dot de
2011-06-08 9:12 ` matthias.andree at gmx dot de
2012-02-21 1:20 ` [Bug nis/430] " jsm28 at gcc dot gnu.org
2014-02-16 19:30 ` jackie.rosen at hushmail dot com
2014-05-28 19:46 ` schwab at sourceware dot org
2014-05-28 21:39 ` jpyeron at pdinc dot us
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