(ITS#4777) translucent overlay breaks if first mod in modlist is a delete

Full_Name: Karsten Kuenne Version: 2.3.30 OS: Solaris 10 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (216.223.241.248)

The following loop in translucent.c at around line 297 fails if the first mod in the modlist is a delete and eventually crashes slapd:

.... Debug(LDAP_DEBUG_TRACE, "=> translucent_modify: silently dropping delete: %s\n", m->sml_desc->ad_cname.bv_val, 0, 0); ==> for(mm = op->orm_modlist; mm->sml_next != m; mm = mm->sml_next); mm->sml_next = m->sml_next; m->sml_next = NULL; slap_mods_free(m, 1); ....

I tried to come up with a fix but so far I always got a "Invalid modification" because I apparently got something wrong so I worked around it on the client side for now.