Re: Empty Strings in LDAP String Attributes

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

At 01:45 AM 2002-11-26, Ganesan R wrote:
>Is it legal to have an empty string for IA5 String and Directory String
>syntaxes?

yes, no.

That is, IA5 string, printable string, universal string can all be
empty (at least in the general case) but directory string must always
be non-empty.  See X.680 and X.520.

>However, according to schema_init.c, UTF8StringValidate() as well as
>IA5StringValidate() immediately return LDAP_INVALID_SYNTAX if the length of
>the string is zero.

OpenLDAP treat all strings as directory strings as most IA5
strings have other constraints which require them to be
non-empty... for example, an empty domain component (DC)
is nonsense.

Kurt