gethostbyname: What does $aliases look like?

Skeeve has asked for the wisdom of the Perl Monks concerning the following question:

I wrote a small script where I use

($name, $aliases, $addrtype, 
          $length, @addrs) = gethostbyname $host;
[download]

and since I don't have any host having more than 2 names (i.e. 1 alias) I don't know what $aliases would look like, had the machine 3 or more names.

Are the names in a string? Space seperated? Komma seperated?

Or wil $aliases be a reference to an array?

Can someone please enlighten me?

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+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e