be sent to transmit client credentials. Buffer the message data.

tmpmemctx without reinitializing

back to us.

tests, needs multi-master testing.

for reqcert, default demand)

Add new entry_dup_bv that dups an entry in a single malloc. Leave it
unused for now; faster but consumes more heap.

the entry to get nvals first, so the size can be computed.

rework slap_client_connect() and slap_discover_feature() accordingly

Note: this breaks LDAP_COMP_MATCH and SLAP_ZONE_MALLOC. But they
were probably broken already anyway.