You almost certainly don't want to be using Socket6 for this. Core's Socket has had getaddrinfo for quite some time now, and I keep improving it. Also, your uses of inet_ntop are suspect. You shouldn't need to use those. This is what getnameinfo is for. 
use Socket qw( getaddrinfo getnameinfo );

my ( $err, @addrs ) = getaddrinfo( $ARGV[0], 0 );
die $err if $err;

my ( $err, $hostname ) = getnameinfo( $addrs[0]->{addr} );
die $err if $err;

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If you dislike that error-in-first-result API style, try Socket::GetAddrInfo::Strict: 
use Socket::GetAddrInfo::Strict qw( getaddrinfo, getnameinfo );

my @addrs = getaddrinfo( $ARGV[0], 0 );

my ( $hostname ) = getnameinfo( $addrs[0]->{addr} );

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You shouldn't ever need to use inet_ntop, inet_pton, gethostby*, or any of those other legacies. Any time you want to turn something human-readable into something binary, use getaddrinfo. Any time you want to turn something binary into something human-readable, use getnameinfo. Simple. :)

In reply to Re: IPv6 Name Resolution by Anonymous Monk
in thread IPv6 Name Resolution by VinsWorldcom

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