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Re: ber_memfree debugging
Julio Sánchez Fernández wrote:
> "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.
You are correct. I should have added the NULL checks when I made
> If the free routines are now NULL-unsafe, the code should be fixed.
I'll move the assert(NULL) behind an #ifdef for now.
> Should I do this?
I have code ready to commit.
> 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)
Sounds reasonable. These routines should allow a NULL argument
> 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.
That's that a restriction of the caller's use not the call's functionality?
(Ie: that's internal to slapd).