Re: ber_memfree debugging

[Julio Sánchez Fernández <j_sanchez@stl.es>]

"Kurt D. Zeilenga" wrote:
> 
> At 09:39 PM 6/6/99 +0200, Bert Vermeulen wrote:

> >It's bombing out on me because
> >ldap_str2attributetype() in libldap frees pointers regardless if they've
> >been used or not.
> 
> Before the recent memory allocation changes, this code called
> free(NULL).  This is a bug.  OpenLDAP should not assume
> STDC semantics.  I've added asserts specifically to detect
> such bugs.

IIRC, it called ldap_memfree, that was NULL-safe.  If the free routines
are now NULL-unsafe, the code should be fixed.  Should I do this?

On a related topic, Bert has asked me to externalize free_syn, free_at
and free_oc (whose names would have to be prefixed by ldap_ or something)
so that they can be used from clients.  I see no problem with this, except
that current code in slapd presumes that once such an entity has been
passed to at_add, oc_add, etc. it will not be freed since it just copies
pointers around except for temporary copies made at places outside of
schemaparse.c and friends.  We may do it with this restriction.  

Julio