#!/usr/bin/perl
#
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#     "This product includes software developed by Fastmail Pty. Ltd."
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package Cassandane::Util::Socket;
use strict;
use warnings;
use base qw(Exporter);
use IO::Socket::INET;
use IO::Socket::INET6;
use IO::Socket::UNIX;

use lib '.';
use Cassandane::Util::Log;

our @EXPORT = qw(create_client_socket);

sub create_client_socket
{
    my ($af, $host, $port) = @_;
    my $sock;

    if ($af eq 'inet')
    {
	$host ||= '127.0.0.1';
	xlog "create_client_socket INET host=$host port=$port";
	return IO::Socket::INET->new(
	    Type => SOCK_STREAM,
	    PeerHost => $host,
	    PeerPort => $port);
    }
    elsif ($af eq 'inet6')
    {
	# IO::Socket::INET6 doesn't have an option to pass
	# an address which is explicitly *without* the optional
	# :port part, but it does allow us to use the same []
	# syntax for surrounding IPv6 address literals as Cyrus
	$host ||= '::1';
	xlog "create_client_socket INET6 addr=[$host]:$port";
	return IO::Socket::INET6->new(
	    Domain => AF_INET6,
	    Type => SOCK_STREAM,
	    PeerAddr => "[$host]:$port");
    }
    elsif ($af eq 'unix')
    {
	xlog "create_client_socket UNIX peer=$port";
	return IO::Socket::UNIX->new(
	    Type => SOCK_STREAM,
	    Peer => $port);
    }
    die "Cannot create sock for address family \"$af\"";
}


1;
