37 lines
897 B
Go
37 lines
897 B
Go
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// Copyright 2014 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 nettest provides utilities for IP testing.
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package nettest // import "golang.org/x/net/internal/nettest"
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import "net"
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// SupportsIPv4 reports whether the platform supports IPv4 networking
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// functionality.
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func SupportsIPv4() bool {
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ln, err := net.Listen("tcp4", "127.0.0.1:0")
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if err != nil {
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return false
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}
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ln.Close()
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return true
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}
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// SupportsIPv6 reports whether the platform supports IPv6 networking
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// functionality.
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func SupportsIPv6() bool {
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ln, err := net.Listen("tcp6", "[::1]:0")
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if err != nil {
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return false
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}
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ln.Close()
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return true
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}
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// ProtocolNotSupported reports whether err is a protocol not
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// supported error.
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func ProtocolNotSupported(err error) bool {
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return protocolNotSupported(err)
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}
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