06/12/28 17:58:48
>>85
ありがとうございました。
sub resolv_host {
use Net::DNS;
my ($ip)=@_; my $timeout=2; my $host;
my $res = Net::DNS::Resolver->new(
tcp_timeout => $timeout, udp_timeout => $timeout
);
my $query = $res->query("$ip");
if ($query) {
foreach my $rr ($query->answer) {
next if $rr->type ne "PTR";
$host=$rr->ptrdname;
}
}
else { $host=$ip; }
return ($host);
}