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// Copyright 2009 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.

// Unix domain sockets

package net

// UnixAddr represents the address of a Unix domain socket end point.

type UnixAddr struct {

        Name string

        Net  string

}

// Network returns the address's network name, "unix" or "unixgram".

func (a *UnixAddr) Network() string {

        return a.Net

}

func (a *UnixAddr) String() string {

        if a == nil {

                return ""

        }

        return a.Name

}

func (a *UnixAddr) toAddr() Addr {

        if a == nil { // nil *UnixAddr

                return nil // nil interface

        }

        return a

}

// ResolveUnixAddr parses addr as a Unix domain socket address.

// The string net gives the network name, "unix", "unixgram" or

// "unixpacket".

func ResolveUnixAddr(net, addr string) (*UnixAddr, error) {

        switch net {

        case "unix":

        case "unixpacket":

        case "unixgram":

        default:

                return nil, UnknownNetworkError(net)

        }

        return &UnixAddr{addr, net}, nil

}