Just add some aliases where it doesn't hurt and it's easy to figure out. (I use a tiny virtual machine for this purpose.)
#!/usr/bin/perl
use strict;
use warnings;
use Dumpvalue; # Core Module, dumps like the debugger
my $dumper = new Dumpvalue;
my $host = shift;
my ($name,$aliases,$addrtype,$length,@addrs) = gethostbyname($host) or
+ die "Can't resolve $host $!\n";
print "$aliases\n";
$dumper->dumpValue(\$aliases);
My /etc/hosts file
127.0.0.1 localhost tf-laptop my-laptop
Running the above code with the argument localhost yields:
$ perl gethostbyname.pl localhost
tf-laptop my-laptop
-> 'tf-laptop my-laptop'
$aliases is a string holding the aliases seperated by whitespace.
Hth
Thomas
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