XFRD_TRANSFER_TIMEOUT_START
zone->fresh_xfr_timeout = backoff*XFRD_TRANSFER_TIMEOUT_START;
fprintf(out, "\tbackoff: %d\n", zone->fresh_xfr_timeout/XFRD_TRANSFER_TIMEOUT_START);
zone->fresh_xfr_timeout = XFRD_TRANSFER_TIMEOUT_START;
mult = zone->fresh_xfr_timeout / XFRD_TRANSFER_TIMEOUT_START;
zone->fresh_xfr_timeout = XFRD_TRANSFER_TIMEOUT_START;
xzone->fresh_xfr_timeout = XFRD_TRANSFER_TIMEOUT_START;