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https://github.com/golang/go
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7b2b45e544
This change consolidates test helpers that test platform capabilities. testNetwork, testAddress and testListenArgs report whether given ariguments are testable on the current platform configuration to mitigate to receive weird test results. Change-Id: Ie1ed568a1f9cc50f3155945ea01562904bc2c389 Reviewed-on: https://go-review.googlesource.com/8076 Reviewed-by: Ian Lance Taylor <iant@golang.org>
62 lines
1.5 KiB
Go
62 lines
1.5 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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package net
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// UDPAddr represents the address of a UDP end point.
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type UDPAddr 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, "udp".
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func (a *UDPAddr) Network() string { return "udp" }
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func (a *UDPAddr) String() string {
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if a == nil {
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return "<nil>"
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}
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ip := ipEmptyString(a.IP)
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if a.Zone != "" {
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return JoinHostPort(ip+"%"+a.Zone, itoa(a.Port))
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}
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return JoinHostPort(ip, itoa(a.Port))
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}
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func (a *UDPAddr) isWildcard() bool {
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if a == nil || a.IP == nil {
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return true
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}
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return a.IP.IsUnspecified()
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}
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func (a *UDPAddr) toAddr() Addr {
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if a == nil {
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return nil
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}
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return a
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}
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// ResolveUDPAddr parses addr as a UDP address of the form "host:port"
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// or "[ipv6-host%zone]:port" and resolves a pair of domain name and
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// port name on the network net, which must be "udp", "udp4" or
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// "udp6". A literal address or host name for IPv6 must be enclosed
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// in square brackets, as in "[::1]:80", "[ipv6-host]:http" or
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// "[ipv6-host%zone]:80".
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func ResolveUDPAddr(net, addr string) (*UDPAddr, error) {
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switch net {
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case "udp", "udp4", "udp6":
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case "": // a hint wildcard for Go 1.0 undocumented behavior
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net = "udp"
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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.toAddr().(*UDPAddr), nil
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}
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