xi_diff_read_str
!xi_diff_read_str(in, zone_buf, sizeof(zone_buf)) ||
!xi_diff_read_str(in, patname_buf, sizeof(patname_buf))) {
if(!xi_diff_read_str(in, log_buf, sizeof(log_buf))) {
!xi_diff_read_str(in, zone_buf, sizeof(zone_buf)) ||
!xi_diff_read_str(in, patname_buf, sizeof(patname_buf))) {