0 or 1. If it is 1, this command behaves differently: before a listing is
returned, the client must transmit a list of fields to search for. The field
headers are listed below in the writeup for the "MSG0" command.
0 or 1. If it is 1, this command behaves differently: before a listing is
returned, the client must transmit a list of fields to search for. The field
headers are listed below in the writeup for the "MSG0" command.