RE: commit: ldap/servers/slapd/back-ldbm dn2id.c

["Howard Chu" <hyc@highlandsun.com>]

> -----Original Message-----
> From: Pierangelo Masarati [mailto:masarati@aero.polimi.it]

> > I believe your comment is unnecessary/misleading. The call to dn_parent
> > occurs after the check for be_issuffix. The be_issuffix check 
> is needed to
> > avoid creating a DN_SUBTREE_PREFIX index for the backend suffix. For
> > example,
> > 	be_suffix: o=foo
> > 	new dn: ou=zip,o=foo
> > The code will create a DN_SUBTREE_PREFIX index for ou=zip,o=foo
> > It will then call dn_parent(ou=zip,o=foo) and get o=foo.
> > It will then create a DN_ONE_PREFIX index for o=foo.
> > It then must not create a DN_SUBTREE_PREFIX for o=foo. The 
> be_issuffix check
> > at that point is required, cannot be optimized out.
> 
> I mean: if pdn is one level below the suffix, be_issuffix(be, 
> pdn) will fail;
> the next call to dn_parent will return NULL, so there won't ever 
> be a successful 
> call to be_issuffix(be, pdn).

If that is true, then there is now a bug. Again with the example above,
  dn_parent(ou=zip,o=foo) should return o=foo, not NULL. Otherwise the
DN_ONE_PREFIX will not be created correctly for the backend suffix.
  -- Howard