Mine

keuhi sandbox # g-cpan -s hostent
 * No ebuild exists, pulling up CPAN listings for hostent
 * Result(s) found :

Net::hostent
    DESCRIPTION  A by-name interface for hosts functions
    CPAN_USERID  TOMC (Tom Christiansen <tchrist@mox.perl.com>)
    CPAN_VERSION 1.01
    CPAN_FILE    N/NW/NWCLARK/perl-5.8.8.tar.gz
    DSLI_STATUS  adpf (alpha,developer,perl,functions)
    MANPAGE      Net::hostent - by-name interface to Perl's built-in gethost*() functions
    INST_FILE    /usr/lib/perl5/5.8.8/Net/hostent.pm
    INST_VERSION 1.01
keuhi sandbox # g-cpan -i hostent
 * hostent is not a CPAN module!
 * Nothing to install!!
keuhi sandbox # g-cpan -i Net::hostent
 * Nothing to install!!