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in reply to gethostbyname: What does $aliases look like?

An array of strings, I would suppose, like the system call.

Then again, Perl doesn't return an array when there's only one alias. Maybe it returns one at most? 

$ perl -MData::Dumper -e'print Dumper $_ for (gethostbyname $ARGV[0])[
+0,1]' www.google.com
$VAR1 = 'www.l.google.com';
$VAR1 = 'www.google.com';

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Update: They are space-joined. From pp_sys.c: 

PUSHs(space_join_names_mortal(hent->h_aliases));

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Re^2: gethostbyname: What does $aliases look like?
by Skeeve (Parson) on Sep 14, 2009 at 07:12 UTC
    Thanks, ikegami
    s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
    +.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e
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