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getaddrinfo() fails on AIX 4.3.3. 0 without fixes.
To save someone from having the same headaches again, I thought I'd
better let you know what I've found about some older AIX 18.104.22.168 systems.
I found that there was a problem in ldap_connect_to_host() in os-ip.c in
libldap. There has some stuff to deal with IPv6 which requires
getaddrinfo(). AIX 4.3.3 has getaddrinfo but it fails if it's second
parameter (a port number in a string) is not NULL. For my purposes I
undef'd HAVE_GETADDRINFO in portable.h (don't need IPv6) and that
sorted out my problems.
I compiled openldap 2.0.23 with openssl and cyrus-sasl libraries
(statically because otherwise I get segfaults when libldap functions
call liblber ones). I found that I was failing to bind to the ldap
server. Looking at the server, it wasn't getting anything at all.
I am downloading fix level 10 which will, I hope, fix the function
itself - it certainly should given that that there is 480MB of it :-).
The IBM patch number that fixes getaddrinfo() is IY02197.
It would be great to work up a macro that could be used to detect this
broken function in configure but I haven't the knowledge yet.