itoko# ldapsearch -d 1 -ZZ -b "ou=people,dc=calmar,dc=net" -s sub "(&(objectclass=posixaccount)(mail=*))" 
ldap_create
ldap_extended_operation_s
ldap_extended_operation
ldap_send_initial_request
ldap_new_connection 1 1 0
ldap_int_open_connection
ldap_connect_to_host: TCP localhost:389
ldap_new_socket: 3
ldap_prepare_socket: 3
ldap_connect_to_host: Trying 127.0.0.1:389
ldap_pvt_connect: fd: 3 tm: -1 async: 0
ldap_open_defconn: successful
ldap_send_server_request
ber_scanf fmt ({it) ber:
ber_scanf fmt ({) ber:
ber_flush2: 31 bytes to sd 3
ldap_result ld 0x41142050 msgid 1
wait4msg ld 0x41142050 msgid 1 (infinite timeout)
wait4msg continue ld 0x41142050 msgid 1 all 1
** ld 0x41142050 Connections:
* host: localhost  port: 389  (default)
  refcnt: 2  status: Connected
  last used: Wed Mar 30 15:43:38 2011


** ld 0x41142050 Outstanding Requests:
 * msgid 1,  origid 1, status InProgress
   outstanding referrals 0, parent count 0
  ld 0x41142050 request count 1 (abandoned 0)
** ld 0x41142050 Response Queue:
   Empty
  ld 0x41142050 response count 0
ldap_chkResponseList ld 0x41142050 msgid 1 all 1
ldap_chkResponseList returns ld 0x41142050 NULL
ldap_int_select
read1msg: ld 0x41142050 msgid 1 all 1
ber_get_next
ber_get_next: tag 0x30 len 42 contents:
read1msg: ld 0x41142050 msgid 1 message type extended-result
ber_scanf fmt ({eAA) ber:
read1msg: ld 0x41142050 0 new referrals
read1msg:  mark request completed, ld 0x41142050 msgid 1
request done: ld 0x41142050 msgid 1
res_errno: 2, res_error: <unsupported extended operation>, res_matched: <>
ldap_free_request (origid 1, msgid 1)
ldap_parse_extended_result
ber_scanf fmt ({eAA) ber:
ldap_parse_result
ber_scanf fmt ({iAA) ber:
ber_scanf fmt (}) ber:
ldap_msgfree
ldap_err2string
ldap_start_tls: Protocol error (2)
        additional info: unsupported extended operation