The following code should print to hosts.txt but it is empty. When I comment out the line with gethostbyaddr call then works ok. What could be wrong here. Thanks. 
######
use Socket;

open (HOST, ">>hosts.txt") || die "can't open hosts\n";

for ($i = 0; $i< 256; $i++) {
    for ($j = 0; $j< 256; $j++) {
        for ($k = 0; $k< 256; $k++) {
            for ($l = 0; $l< 256; $l++) {
                $iaddr = inet_aton("$i.$j.$k.$l"); # or whatever addre
+ss
                $name  = gethostbyaddr($iaddr, AF_INET);
                chomp $name;
                print "$i.$j.$k.$l\t$name\n";
                print HOST "$i.$j.$k.$l\t$name\n";
            }
        }
    }
}

close HOST;

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Edited 2001-05-04 by tilly to make the title unique

In reply to gethostbyaddr question by Anonymous Monk

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