Could not create LDAP session handle (3): Time limit exceeded

[Tim Seeley <tim.seeley@infoeng.flinders.edu.au>]

I'm having trouble using the URI style of specification for ldap
searches.

In short, I have an ldap search that I can execute successfully either:

• using ldapsearch with the -h and -b options, or
• from C code starting out with the ldap_init() call

But when I try to translate this to the URI style it fails 
with
"Could not create LDAP session handle (3): Time limit
exceeded".
This happens both with:

• ldapsearch using the -H option, and
• from C code when I call ldap_initialize().

I have read RFC2255 but maybe I'm just getting the URI construction
wrong still.

More detail ....

This search succeeds:
ldapsearch -v -x -h tester2 -D
"cn=Manager,dc=infoeng,dc=flinders,dc=edu,dc=au" -W -b
ou=diskquotas,dc=infoeng,dc=flinders,dc=edu,dc=au

So does this one (server specification moved from -h to -H):
ldapsearch -v -x -D
"cn=Manager,dc=infoeng,dc=flinders,dc=edu,dc=au" -W -H
"ldap://tester2" -b
ou=diskquotas,dc=infoeng,dc=flinders,dc=edu,dc=au

But when I try to put the search base into the -H URI argument, ...
ldapsearch -v -x -D
"cn=Manager,dc=infoeng,dc=flinders,dc=edu,dc=au" -W -H
"ldap://tester2/ou=diskquotas,dc=infoeng,dc=flinders,dc=edu,dc=au"

it fails with the message:
ldap_initialize(
ldap://tester2/ou=diskquotas,dc=infoeng,dc=flinders,dc=edu,dc=au )
Could not create LDAP session handle (3): Time limit exceeded

And by the way, it appears to fail immediately - there's not much
timeouting happening, and I'm not seeing any activity in slapd's syslog
output.

I get similar results from ldap_initialize() in my C code, but
ldap_init() manages just fine (not using the URI format, that
is).

I am using OpenLDAP 2.1.21  Is it possible that this is the
problem?  I think it's more likely that I'm just doing something
incorrectly with the URI format.  I would be much obliged if
somebody could point out my error.

Thanks,
Tim