getnetbyaddr not working with LDAP

[Eric Ritchie <eritchie@interactivebrokers.com>]

I'm running 2.3.39 under Redhat 4.0. I'm transitioning my Redhat clients
from NIS to LDAP. It seems that getnetbyaddr doesn't work under LDAP.
The following perl code shows the problem:

#!/usr/local/bin/perl -w
use Socket;
$n = getnetbyname ( "nasd" );
$name = getnetbyaddr($n, AF_INET);
print "$name\n";
exit 0;

Host running NIS:
# ./eric.pl
nasd

Host running LDAP:
# ./eric.pl
Use of uninitialized value in concatenation (.) or string at ./eric.pl line 9.

The getnetbyname call works and I can print out the network IP. Can
anyone help with this?

Thanks

-- 
Eric Ritchie
Interactive Brokers LLC
203-618-5868