+ if (dtp->common.unit)
+ {
+ iunit->s = open_internal4 (dtp->internal_unit - start_record,
+ dtp->internal_unit_len, -start_record);
+ fbuf_init (iunit, 256);
+ }
+ else
+ iunit->s = open_internal (dtp->internal_unit - start_record,
+ dtp->internal_unit_len, -start_record);