much simpler resolve

addr.go

+package reuseport
+
+import (
+	"net"
+)
+
+func ResolveAddr(network, address string) (net.Addr, error) {
+	switch network {
+	default:
+		return nil, net.UnknownNetworkError(network)
+	case "ip", "ip4", "ip6":
+		return net.ResolveIPAddr(network, address)
+	case "tcp", "tcp4", "tcp6":
+		return net.ResolveTCPAddr(network, address)
+	case "udp", "udp4", "udp6":
+		return net.ResolveUDPAddr(network, address)
+	case "unix", "unixgram", "unixpacket":
+		return net.ResolveUnixAddr(network, address)
+	}
+}

impl_unix.go

@@ -8,7 +8,6 @@ import (
 	"strconv"
 	"syscall"
 
-	resolve "github.com/jbenet/go-net-resolve-addr"
 	sockaddrnet "github.com/jbenet/go-sockaddr/net"
 )
 
@@ -26,7 +25,7 @@ func dial(dialer net.Dialer, netw, addr string) (c net.Conn, err error) {
 		localSockaddr  syscall.Sockaddr
 	)
 
-	netAddr, err := resolve.ResolveAddr("dial", netw, addr)
+	netAddr, err := ResolveAddr(netw, addr)
 	if err != nil {
 		// fmt.Println("resolve addr failed")
 		return nil, err
@@ -96,7 +95,7 @@ func listen(netw, addr string) (l net.Listener, err error) {
 		sockaddr   syscall.Sockaddr
 	)
 
-	netAddr, err := resolve.ResolveAddr("listen", netw, addr)
+	netAddr, err := ResolveAddr(netw, addr)
 	if err != nil {
 		// fmt.Println("resolve addr failed")
 		return nil, err

interface.go

@@ -20,8 +20,6 @@ package reuseport
 import (
 	"errors"
 	"net"
-
-	resolve "github.com/jbenet/go-net-resolve-addr"
 )
 
 // ErrUnsuportedProtocol signals that the protocol is not currently
@@ -45,7 +43,7 @@ func Dial(network, laddr, raddr string) (net.Conn, error) {
 
 	var d Dialer
 	if laddr != "" {
-		netladdr, err := resolve.ResolveAddr("dial", network, laddr)
+		netladdr, err := ResolveAddr(network, laddr)
 		if err != nil {
 			return nil, err
 		}

reuse_test.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"net"
 	"os"
+	"strings"
 	"testing"
 )
 
@@ -31,6 +32,13 @@ func TestListenSamePort(t *testing.T) {
 
 	// any ports
 	any := [][]string{
+		[]string{"tcp", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"tcp4", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"tcp6", "[::]:0", "[::]:0"},
+		[]string{"udp", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"udp4", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"udp6", "[::]:0", "[::]:0"},
+
 		[]string{"tcp", "127.0.0.1:0"},
 		[]string{"tcp", "[::1]:0"},
 		[]string{"tcp4", "127.0.0.1:0"},
@@ -100,6 +108,13 @@ func TestListenSamePort(t *testing.T) {
 func TestListenDialSamePort(t *testing.T) {
 
 	any := [][]string{
+		[]string{"tcp", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"tcp4", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"tcp6", "[::]:0", "[::]:0"},
+		[]string{"udp", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"udp4", "0.0.0.0:0", "0.0.0.0:0"},
+		[]string{"udp6", "[::]:0", "[::]:0"},
+
 		[]string{"tcp", "127.0.0.1:0", "127.0.0.1:0"},
 		[]string{"tcp4", "127.0.0.1:0", "127.0.0.1:0"},
 		[]string{"tcp6", "[::1]:0", "[::1]:0"},
@@ -155,11 +170,11 @@ func TestListenDialSamePort(t *testing.T) {
 		defer c1.Close()
 		t.Log("dialed", c1.LocalAddr(), c1.RemoteAddr())
 
-		if l1.Addr().String() != c1.LocalAddr().String() {
+		if getPort(l1.Addr()) != getPort(c1.LocalAddr()) {
 			t.Fatal("addrs should match", l1.Addr(), c1.LocalAddr())
 		}
 
-		if l2.Addr().String() != c1.RemoteAddr().String() {
+		if getPort(l2.Addr()) != getPort(c1.RemoteAddr()) {
 			t.Fatal("addrs should match", l2.Addr(), c1.RemoteAddr())
 		}
 
@@ -200,3 +215,7 @@ func TestUnixNotSupported(t *testing.T) {
 		}
 	}
 }
+
+func getPort(a net.Addr) string {
+	return strings.Split(a.String(), ":")[1]
+}