// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package nettest provides utilities for IP testing. package nettest // import "golang.org/x/net/internal/nettest" import "net" // SupportsIPv4 reports whether the platform supports IPv4 networking // functionality. func SupportsIPv4() bool { ln, err := net.Listen("tcp4", "127.0.0.1:0") if err != nil { return false } ln.Close() return true } // SupportsIPv6 reports whether the platform supports IPv6 networking // functionality. func SupportsIPv6() bool { ln, err := net.Listen("tcp6", "[::1]:0") if err != nil { return false } ln.Close() return true } // SupportsRawIPSocket reports whether the platform supports raw IP // sockets. func SupportsRawIPSocket() (string, bool) { return supportsRawIPSocket() } // SupportsIPv6MulticastDeliveryOnLoopback reports whether the // platform supports IPv6 multicast packet delivery on software // loopback interface. func SupportsIPv6MulticastDeliveryOnLoopback() bool { return supportsIPv6MulticastDeliveryOnLoopback() } // ProtocolNotSupported reports whether err is a protocol not // supported error. func ProtocolNotSupported(err error) bool { return protocolNotSupported(err) }