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#!/usr/bin/perl
use v5;
use strict;
use warnings;
use Test::More;
use IO::Socket::IP;
use Socket qw( inet_pton inet_ntop pack_sockaddr_in6 unpack_sockaddr_in6 IN6ADDR_LOOPBACK );
my $AF_INET6 = eval { Socket::AF_INET6() } or
plan skip_all => "No AF_INET6";
# Some odd locations like BSD jails might not like IN6ADDR_LOOPBACK. We'll
# establish a baseline first to test against
my $IN6ADDR_LOOPBACK = eval {
socket my $sockh, Socket::PF_INET6(), SOCK_STREAM, 0 or die "Cannot socket(PF_INET6) - $!";
bind $sockh, pack_sockaddr_in6( 0, inet_pton( $AF_INET6, "::1" ) ) or die "Cannot bind() - $!";
( unpack_sockaddr_in6( getsockname $sockh ) )[1];
} or plan skip_all => "Unable to bind to ::1 - $@";
my $IN6ADDR_LOOPBACK_HOST = inet_ntop( $AF_INET6, $IN6ADDR_LOOPBACK );
if( $IN6ADDR_LOOPBACK ne IN6ADDR_LOOPBACK ) {
diag( "Testing with IN6ADDR_LOOPBACK=$IN6ADDR_LOOPBACK_HOST; this may be because of odd networking" );
}
my $IN6ADDR_LOOPBACK_HEX = unpack "H*", $IN6ADDR_LOOPBACK;
# Unpack just ip6_addr and port because other fields might not match end to end
sub unpack_sockaddr_in6_addrport {
return ( Socket::unpack_sockaddr_in6( shift ) )[0,1];
}
foreach my $socktype (qw( SOCK_STREAM SOCK_DGRAM )) {
my $testserver = IO::Socket->new;
$testserver->socket( $AF_INET6, Socket->$socktype, 0 )
or die "Cannot socket() - $!";
my ( $err, $ai ) = Socket::getaddrinfo( "::1", 0, { family => $AF_INET6, socktype => Socket->$socktype } );
die "getaddrinfo() - $err" if $err;
$testserver->bind( $ai->{addr} ) or die "Cannot bind() - $!";
if( $socktype eq "SOCK_STREAM" ) {
$testserver->listen( 1 ) or die "Cannot listen() - $!";
}
my $testport = ( Socket::unpack_sockaddr_in6 $testserver->sockname )[0];
my $socket = IO::Socket::IP->new(
PeerHost => "::1",
PeerService => $testport,
Type => Socket->$socktype,
GetAddrInfoFlags => 0, # disable AI_ADDRCONFIG
);
ok( defined $socket, "IO::Socket::IP->new constructs a $socktype socket" ) or
diag( " error was $@" );
is( $socket->sockdomain, $AF_INET6, "\$socket->sockdomain for $socktype" );
is( $socket->socktype, Socket->$socktype, "\$socket->socktype for $socktype" );
my $testclient = ( $socktype eq "SOCK_STREAM" ) ?
$testserver->accept :
do { $testserver->connect( $socket->sockname ); $testserver };
ok( defined $testclient, "accepted test $socktype client" );
ok( $socket->connected, "\$socket is connected for $socktype" );
is_deeply( [ unpack_sockaddr_in6_addrport( $socket->sockname ) ],
[ unpack_sockaddr_in6_addrport( $testclient->peername ) ],
"\$socket->sockname for $socktype" );
is_deeply( [ unpack_sockaddr_in6_addrport( $socket->peername ) ],
[ unpack_sockaddr_in6_addrport( $testclient->sockname ) ],
"\$socket->peername for $socktype" );
is( $socket->peerhost, $IN6ADDR_LOOPBACK_HOST, "\$socket->peerhost for $socktype" );
is( $socket->peerport, $testport, "\$socket->peerport for $socktype" );
# Unpack just so it pretty prints without wrecking the terminal if it fails
is( unpack("H*", $socket->peeraddr), $IN6ADDR_LOOPBACK_HEX, "\$testclient->peeraddr for $socktype" );
if( $socktype eq "SOCK_STREAM" ) {
# Some OSes don't update sockaddr with a local bind() on SOCK_DGRAM sockets
is( unpack("H*", $socket->sockaddr), $IN6ADDR_LOOPBACK_HEX, "\$testclient->sockaddr for $socktype" );
}
# Can't easily test the non-numeric versions without relying on the system's
# ability to resolve the name "localhost"
$socket->close;
ok( !$socket->connected, "\$socket not connected after close for $socktype" );
}
done_testing;
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