[26513] in CVS-changelog-for-Kerberos-V5
svn rev #25844: trunk/src/lib/krb5/os/
daemon@ATHENA.MIT.EDU (ghudson@mit.edu)
Thu May 3 11:15:55 2012
Date: Thu, 3 May 2012 11:15:51 -0400
From: ghudson@mit.edu
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http://src.mit.edu/fisheye/changelog/krb5/?cs=25844
Commit By: ghudson
Log Message:
In sn2princ, getaddrinfo without AI_ADDRCONFIG
When canonicalizing a principal, use AI_CANONNAME alone in the hint
flags for getaddrinfo, for two reasons. First, it works around a gnu
libc bug where getaddrinfo does a PTR lookup for the canonical name
(we tried to work around this in r24977 bug the addition of
AI_ADDRCONFIG caused the same problem as the use of AF_INET). Second,
an IPv4-only host should be able create a principal for an IPv6-only
host even if it can't contact the host.
This does result in extra AAAA queries in the common case (IPv4-only
host contacting IPv4-only service), which is unfortunate. But we need
to leave that optimization up to the platform at this point.
ticket: new
Changed Files:
U trunk/src/lib/krb5/os/sn2princ.c
Modified: trunk/src/lib/krb5/os/sn2princ.c
===================================================================
--- trunk/src/lib/krb5/os/sn2princ.c 2012-05-02 18:38:33 UTC (rev 25843)
+++ trunk/src/lib/krb5/os/sn2princ.c 2012-05-03 15:15:51 UTC (rev 25844)
@@ -105,7 +105,7 @@
hostnames associated. */
memset(&hints, 0, sizeof(hints));
- hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
+ hints.ai_flags = AI_CANONNAME;
err = getaddrinfo(hostname, 0, &hints, &ai);
if (err) {
#ifdef DEBUG_REFERRALS
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