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On Linux, non-RFC 1034-complaint names (such as gc._msdsc.example.org)
will result in the resolver returning the non-POSIX EAI_NODATA. In that
case, the case statement here would fall back on the internal resolver,
allowing resolution to complete successfully.
On FreeBSD, the libc resolver uses the same validation code, but
the POSIX result of EAI_FAIL is returned instead of EAI_NODATA. Since
there was no case for this error code, no fallback to the internal
resolver would occur. This led to replication failing on FreeBSD.
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sun Feb 17 07:06:36 CET 2013 on sn-devel-104
After migrating to use libaddns, reply_to_addrs() needed to change the
way answers are iterated through. Originally libroken implementation
gave all answers as separate records with last one being explicitly NULL.
libaddns unmarshalling code gives all non-NULL answers and should be
iterated with explicit reply->num_answers in use.
Without this, netbios name lookups do not work, as we never fall back to them.
This caused segfaults from e38d97e042 to
251209bd6f and then name lookup failure
or timeouts until this patch.
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Wed Dec 14 01:16:37 CET 2011 on sn-devel-104
It turns out that if there is no AAAA record the dns server (bind and MS
windows at least) do not return the A record when just asked for AAAA.
Autobuild-User: Matthieu Patou <mat@samba.org>
Autobuild-Date: Wed Nov 2 11:15:34 CET 2011 on sn-devel-104
The two error tables need to be combined, but for now seperate the names.
(As the common parts of the tree now use the _common function,
errmap_unix.c must be included in the s3 autoconf build).
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Mon Jun 20 08:12:03 CEST 2011 on sn-devel-104
I'm hoping this will fix an occasional segfault I've noticed where
epoll still calls events on a closed fde
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
I think this completes commit 50feca550e.
Now result should be handled correctly both for systems that
support EAI_NODATA but returns EAI_NONAME (as my Ubuntu 9.x)
and systems that doesn't support EAI_NODATA at all.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Also including the supporting changes required to pass make test
A number of heimdal functions and constants have changed since we last
imported a tree (for the better, but inconvenient for us).
Andrew Bartlett
FreeBSD has explicitly deprecated EAI_NODATA as a return value from
getaddrinfo by removing it from netdb.h. On systems that don't have
EAI_NODATA, EAI_NONAME should be used instead.
This "dns_ex" module provides flexible lookup methods
for dns lookups.
The getaddrinfo() part looks at /etc/hosts and dns.
As it handles CNAME replies badly we fallback
to use dns_lookup(name, "A").
The dns_lookup() makes DNS SRV lookups possible.
This module is not a real resolve module, it's just
a generic helper as the nbtlist.c code is.
The next step will be that the "host" module will
use the dns_ex.c code.
metze
