handle
    A pointer to a client handle created by any of the client-handle
    creation routines.
 procnum
    The procedure number associated with the remote procedure.
 inproc
    The XDR routine used to encode the remote procedure's arguments.
 in
    A pointer to the remote procedure's arguments.
 outproc
    The XDR routine used to decode the remote procedure's results.
 out
    A pointer to the remote procedure's results.
 timeout
    A structure describing the time allowed for results to return to
    the client. If you have previously used the clnt_control macro
    with the CLSET_TIMEOUT code, this value is ignored.