- my $addrs = $ibx->{address};
- $addrs = join(' ', @$addrs) if ref($addrs) eq 'ARRAY';
- my $v = defined $max ? '-V2' : '-V1';
- $urls .= <<EOF;
+ if (my $addrs = $ibx->{address}) {
+ $addrs = join(' ', @$addrs) if ref($addrs) eq 'ARRAY';
+ my $v = defined $max ? '-V2' : '-V1';
+ $urls .= <<EOF;