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https://github.com/golang/go
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aa0dda767a
This CL provides IPv6 scoped addressing zone support as defined in RFC 4007 for internet protocol family connection setups. Follwoing types and functions allow a literal IPv6 address with zone identifer as theirs parameter. pkg net, func Dial(string, string) (Conn, error) pkg net, func DialOpt(string, ...DialOption) (Conn, error) pkg net, func DialTimeout(string, string, time.Duration) (Conn, error) pkg net, func Listen(string, string) (Listener, error) pkg net, func ListenPacket(string, string) (PacketConn, error) pkg net, func ResolveIPAddr(string, string) (*IPAddr, error) pkg net, func ResolveTCPAddr(string, string) (*TCPAddr, error) pkg net, func ResolveUDPAddr(string, string) (*UDPAddr, error) pkg net, type IPAddr struct, Zone string pkg net, type TCPAddr struct, Zone string pkg net, type UDPAddr struct, Zone string Also follwoing methods return a literal IPv6 address with zone identifier string if possible. pkg net, method (*IPAddr) String() string pkg net, method (*TCPAddr) String() string pkg net, method (*UDPAddr) String() string Fixes #4234. Fixes #4501. Update #5081. R=rsc, iant CC=golang-dev https://golang.org/cl/6816116
50 lines
1.2 KiB
Go
50 lines
1.2 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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if a.Zone != "" {
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return a.IP.String() + "%" + a.Zone
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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 of the form "host" or
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// "ipv6-host%zone" and resolves the domain name on the network net,
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// which must be "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 := parseNetwork(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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