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// Copyright 2009 The Go Authors.  All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// TCP sockets

package net

// TCPAddr represents the address of a TCP end point.

type TCPAddr struct {

        IP   IP

        Port int

}

// Network returns the address's network name, "tcp".

func (a *TCPAddr) Network() string { return "tcp" }

func (a *TCPAddr) String() string {

        if a == nil {

                return ""

        }

        return JoinHostPort(a.IP.String(), itoa(a.Port))

}

// ResolveTCPAddr parses addr as a TCP address of the form

// host:port and resolves domain names or port names to

// numeric addresses on the network net, which must be "tcp",

// "tcp4" or "tcp6".  A literal IPv6 host address must be

// enclosed in square brackets, as in "[::]:80".

func ResolveTCPAddr(net, addr string) (*TCPAddr, error) {

        ip, port, err := hostPortToIP(net, addr)

        if err != nil {

                return nil, err

        }

        return &TCPAddr{ip, port}, nil

}