It is possible to have LDAP run 100% EBCDIC in USS on z/OS and OS/390
You need to perform EtoA and AtoE as the data is read/written to the
This allows all config files, schema files, etc to stay in EBCDIC and
not have to play games to work in ASCII in an EBCDIC world.
From: jean-frederic clere
Sent: Monday, March 03, 2003 5:30 AM
To: Howard Chu
Cc: openldap-devel@OpenLDAP.org; Martin Kraemer
Subject: Re: EBCDIC
Howard Chu wrote:
I ported OpenLDAP, OpenSSL, Berkeley DB 4.1, and part of
Cyrus SASL to
OS/390. Aside from Cyrus, all of these packages were fully
OpenLDAP and OpenSSL operate with ASCII internally. In addition to
IBM's libascii, I wrote stdio stubs to handle ASCII/EBCDIC
parsing commandline args, reading config files, and writing
are the only interfaces between the software and the host OS that
work, given the presence of libascii.
I already have OpenSSL, Berkeley DB 4.1 and a lot more libraries
prepared to use
EBCDIC APIs. I do not think I will be able to have a special ASCII
those for OpenLDAP.
A lot of what I went thru is in the FAQ-o-Matic now
The slapd that I built with this approach interoperates
other LDAP server or client, does not need to do character-set
the protocol transactions, and thus has no performance degradation
to a native server.
I am not able to locate in the CVS the modifications you
describe in the
FAQ-o-Matic. How could I get them?
If you need to build a slapd that uses EBCDIC strings in
you're not talking LDAP. That is not worth any further discussion
That is not what I need.
If you need to use libldap from other applications, and they're
EBCDIC strings, you have a lot of hard work ahead of you. Since the
library doesn't have ready access to the schema, you don't have an
of identifying binary values that must be left unmodified, vs string
that should be translated.
I am afraid that what I have to do.
By the way, I am putting together a small presentation on the OS/390
the OpenLDAP Developer Day conference on March 21. Perhaps we can
more of the issues there.
Would be nice but I am based in Europa.
-- Howard Chu
Chief Architect, Symas Corp. Director, Highland Sun
Symas: Premier OpenSource Development and Support
[mailto:owner-openldap-devel@OpenLDAP.org]On Behalf Of jean-frederic
Sent: Friday, February 28, 2003 7:41 AM
After a long time doing other things I am returning to port
OpenLDAP to an
I have done the following:
- check out the tag OPENLDAP_REL_ENG_2.
- patch build/ltmain.sh (attached).
- use libregex from Apache-1.3 and snprintf/sockaddr_ip_get
from APR (Apache
- use getgrnam and initgr specific to the machine.
And now I have a slapd that starts but does nothing else has
he speaks EBCDIC.
I have to integrate OpenLDAP in an EBCDIC environment
(strings _have_ to be
EBCDIC strings). So I will convert the data in input/output
as I have to link
OpenLDAP with other API that are prepared to work that way.
The EBCDIC topic appaired last year in the dev list but I do
not know what is
the actual status of the porting.
Any comments or hints?