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https://github.com/golang/go
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e3e885bb48
Also fixes comments on ResolveIPAddr. Fixes #4476. R=bradfitz, golang-dev CC=golang-dev https://golang.org/cl/6854129
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// TCP sockets
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package net
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// TCPAddr represents the address of a TCP end point.
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type TCPAddr struct {
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IP IP
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Port int
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Zone string // IPv6 scoped addressing zone
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}
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// Network returns the address's network name, "tcp".
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func (a *TCPAddr) Network() string { return "tcp" }
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func (a *TCPAddr) String() string {
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if a == nil {
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return "<nil>"
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}
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return JoinHostPort(a.IP.String(), itoa(a.Port))
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}
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// ResolveTCPAddr parses addr as a TCP address of the form
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// host:port and resolves domain names or port names to
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// numeric addresses on the network net, which must be "tcp",
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// "tcp4" or "tcp6". A literal IPv6 host address must be
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// enclosed in square brackets, as in "[::]:80".
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func ResolveTCPAddr(net, addr string) (*TCPAddr, error) {
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switch net {
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case "tcp", "tcp4", "tcp6":
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case "": // a hint wildcard for Go 1.0 undocumented behavior
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net = "tcp"
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default:
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return nil, UnknownNetworkError(net)
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}
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a, err := resolveInternetAddr(net, addr, noDeadline)
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if err != nil {
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return nil, err
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}
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return a.(*TCPAddr), nil
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}
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