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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
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// Copyright 2010 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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// Raw IP sockets
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package net
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// IPAddr represents the address of an IP end point.
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type IPAddr struct {
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IP IP
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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, "ip".
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func (a *IPAddr) Network() string { return "ip" }
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func (a *IPAddr) String() string {
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if a == nil {
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return "<nil>"
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}
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return a.IP.String()
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}
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// ResolveIPAddr parses addr as an IP address and resolves domain
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// names to numeric addresses on the network net, which must be
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// "ip", "ip4" or "ip6".
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func ResolveIPAddr(net, addr string) (*IPAddr, error) {
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if net == "" { // a hint wildcard for Go 1.0 undocumented behavior
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net = "ip"
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}
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afnet, _, err := parseDialNetwork(net)
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if err != nil {
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return nil, err
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}
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switch afnet {
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case "ip", "ip4", "ip6":
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default:
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return nil, UnknownNetworkError(net)
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}
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a, err := resolveInternetAddr(afnet, 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.(*IPAddr), nil
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}
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