$cgi->param('end', $end->addr);
$cgi->param('start', $start->addr);
}
- if ( $start + 0x7FFFFFFF <= $end ) {
+ # detect addr ranges that are too big
+ my ($one) = split('\.', $start->addr);
+ if ( $one < 128 and $start + 0x7FFFFFFF <= $end ) {
# then this is going to overflow
- return "Address ranges must be < 2^31 - 1 addresses long."
- }
+ return "Address ranges must be < 2^31 - 1 addresses long.";
+ } # if the first octet is >= 128, then it's in the top half of
+ # address space and it CAN'T be too big
$cgi->param('length', $end - $start + 1);
} else {