auth_failed 65
conn_broken 66
inv_cmd 67
inv_par 68
Rerror 69
IOerror 70
not_open 71
access_denied 72
unsupported_cmd 73
unknown_cmd 74
data_overflow 75
object_too_big 76
out_of_mem 77
ctrl_closed 78
session_busy 80
detach_failed 81