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Re: Ignore ing



Look folks, I keep getting copied on this thread and don't understand why.
Please fix the issue.

Thanks

Anthony Alegrete

Hallvard B Furuseth wrote:

> Andrew.Briscoe@icl.com writes:
> > (...) LBER_SEEK_TAGS_MODE (...)
> > If this new option has been used then calls to
> > ber_scanf() will seek out the tags specified in the
> > ber_scanf format string passively skipping those that do
> > not satisfy the ber_scanf request.
> >
> > This seemed to be the easiest way to satisfy the
> > statement in rfc2251. As it has no external impact on
> > the LDAP API look and feel and it does not prejudice
> > v2 LDAP functionality.
>
> I assume this means you set the flag for ldapv3 clients but not v2
> clients?  That sounds quite good to me.
>
> One detail if you are trying to get it _really_ perfect: If an
> unrecognized tag occurs before the ldap version in the bindRequest, but
> the version is < 3, the Really Correct behaviour is probably to return
> an error.  Which means you must set a flag if some elements were skipped
> due to unrecognized tags.  (Either in the BerElement, or by reading the
> initial part of the request "by hand".)
>
> (Actually, I wouldn't care if LDAPv2 also ignored unrecognized elements,
> I'd be satisfied to assume the client wanted what he seemed to ask for.
> There is almost no _correct_ use of LDAPv2 anyway; people get at least
> the charset wrong.  UTF-8/iso8859-1 instead of T.61.)
>
> How do you specify the tags to skip?  I imagine a format like this:
>
> 'r'     Skip elements with unrecognized tags.
>         The argument is a ber_tag_t* which points to an array of
>         the recognized tags, terminated by LBER_DEFAULT.
>
> 'R'     For convenience: as 'r', but takes a single ber_tag_t.
>
> and a corresponding function
>     ber_skip_to_tags(BerElement *ber, const ber_tag_t *recognized_tags)
>
> --
> Hallvard
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