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: 7124
git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@25844
dc483132-0cff-0310-8789-
dd5450dbe970
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