From 4a3be6086ed6fd5393d7081144ee147a8cc1fd36 Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Thu, 5 Jul 2018 15:44:04 +0200
Subject: [PATCH] Update deps

---
 Gopkg.lock                                    |  4 +-
 vendor/golang.org/x/net/http2/flow.go         | 10 +-
 vendor/golang.org/x/net/http2/flow_test.go    | 34 +++++++
 vendor/golang.org/x/net/http2/server.go       | 13 +++
 vendor/golang.org/x/net/http2/server_test.go  | 63 ++++++++++++
 vendor/golang.org/x/net/ipv4/batch.go         |  9 +-
 vendor/golang.org/x/net/ipv4/dgramopt.go      | 31 +++---
 vendor/golang.org/x/net/ipv4/doc.go           |  2 +-
 vendor/golang.org/x/net/ipv4/endpoint.go      | 21 ++--
 vendor/golang.org/x/net/ipv4/genericopt.go    | 10 +-
 vendor/golang.org/x/net/ipv4/header.go        |  3 +-
 vendor/golang.org/x/net/ipv4/helper.go        |  1 +
 .../golang.org/x/net/ipv4/multicast_test.go   |  4 +-
 .../x/net/ipv4/multicastlistener_test.go      | 10 +-
 .../x/net/ipv4/multicastsockopt_test.go       |  4 +-
 vendor/golang.org/x/net/ipv4/packet.go        |  5 +-
 vendor/golang.org/x/net/ipv4/payload_cmsg.go  |  9 +-
 .../golang.org/x/net/ipv4/payload_nocmsg.go   |  9 +-
 .../x/net/ipv4/readwrite_go1_8_test.go        |  4 +-
 .../x/net/ipv4/readwrite_go1_9_test.go        |  4 +-
 .../golang.org/x/net/ipv4/readwrite_test.go   |  2 +-
 vendor/golang.org/x/net/ipv4/unicast_test.go  |  6 +-
 .../x/net/ipv4/unicastsockopt_test.go         |  6 +-
 vendor/golang.org/x/net/ipv6/batch.go         |  5 +-
 vendor/golang.org/x/net/ipv6/dgramopt.go      | 35 ++++---
 vendor/golang.org/x/net/ipv6/doc.go           |  2 +-
 vendor/golang.org/x/net/ipv6/endpoint.go      | 13 ++-
 vendor/golang.org/x/net/ipv6/genericopt.go    | 10 +-
 vendor/golang.org/x/net/ipv6/helper.go        |  1 +
 vendor/golang.org/x/net/ipv6/icmp_test.go     |  4 +-
 .../golang.org/x/net/ipv6/multicast_test.go   |  4 +-
 .../x/net/ipv6/multicastlistener_test.go      | 10 +-
 .../x/net/ipv6/multicastsockopt_test.go       |  2 +-
 vendor/golang.org/x/net/ipv6/payload_cmsg.go  |  9 +-
 .../golang.org/x/net/ipv6/payload_nocmsg.go   |  9 +-
 .../x/net/ipv6/readwrite_go1_8_test.go        |  4 +-
 .../x/net/ipv6/readwrite_go1_9_test.go        |  4 +-
 .../golang.org/x/net/ipv6/readwrite_test.go   |  2 +-
 vendor/golang.org/x/net/ipv6/sockopt_test.go  |  6 +-
 vendor/golang.org/x/net/ipv6/unicast_test.go  |  4 +-
 .../x/net/ipv6/unicastsockopt_test.go         |  4 +-
 vendor/golang.org/x/sys/windows/service.go    | 18 ++++
 .../x/sys/windows/svc/mgr/config.go           | 38 ++++----
 .../x/sys/windows/svc/mgr/mgr_test.go         | 81 ++++++++++++++++
 .../x/sys/windows/svc/mgr/recovery.go         | 96 +++++++++++++++++++
 45 files changed, 457 insertions(+), 168 deletions(-)
 create mode 100644 vendor/golang.org/x/sys/windows/svc/mgr/recovery.go

diff --git a/Gopkg.lock b/Gopkg.lock
index 6e00dd71..437e0087 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -167,7 +167,7 @@
     "ipv6",
     "proxy"
   ]
-  revision = "afe8f62b1d6bbd81f31868121a50b06d8188e1f9"
+  revision = "ed29d75add3d7c4bf7ca65aac0c6df3d1420216f"
 
 [[projects]]
   branch = "master"
@@ -180,7 +180,7 @@
     "windows/svc/eventlog",
     "windows/svc/mgr"
   ]
-  revision = "a200a19cb90b19de298170992778b1fda7217bd6"
+  revision = "151529c776cdc58ddbe7963ba9af779f3577b419"
 
 [[projects]]
   name = "golang.org/x/text"
diff --git a/vendor/golang.org/x/net/http2/flow.go b/vendor/golang.org/x/net/http2/flow.go
index 957de254..cea601fc 100644
--- a/vendor/golang.org/x/net/http2/flow.go
+++ b/vendor/golang.org/x/net/http2/flow.go
@@ -41,10 +41,10 @@ func (f *flow) take(n int32) {
 // add adds n bytes (positive or negative) to the flow control window.
 // It returns false if the sum would exceed 2^31-1.
 func (f *flow) add(n int32) bool {
-	remain := (1<<31 - 1) - f.n
-	if n > remain {
-		return false
+	sum := f.n + n
+	if (sum > n) == (f.n > 0) {
+		f.n = sum
+		return true
 	}
-	f.n += n
-	return true
+	return false
 }
diff --git a/vendor/golang.org/x/net/http2/flow_test.go b/vendor/golang.org/x/net/http2/flow_test.go
index 859adf5d..7ae82c78 100644
--- a/vendor/golang.org/x/net/http2/flow_test.go
+++ b/vendor/golang.org/x/net/http2/flow_test.go
@@ -49,5 +49,39 @@ func TestFlowAdd(t *testing.T) {
 	if f.add(1) {
 		t.Fatal("adding 1 to max shouldn't be allowed")
 	}
+}
+
+func TestFlowAddOverflow(t *testing.T) {
+	var f flow
+	if !f.add(0) {
+		t.Fatal("failed to add 0")
+	}
+	if !f.add(-1) {
+		t.Fatal("failed to add -1")
+	}
+	if !f.add(0) {
+		t.Fatal("failed to add 0")
+	}
+	if !f.add(1) {
+		t.Fatal("failed to add 1")
+	}
+	if !f.add(1) {
+		t.Fatal("failed to add 1")
+	}
+	if !f.add(0) {
+		t.Fatal("failed to add 0")
+	}
+	if !f.add(-3) {
+		t.Fatal("failed to add -3")
+	}
+	if got, want := f.available(), int32(-2); got != want {
+		t.Fatalf("size = %d; want %d", got, want)
+	}
+	if !f.add(1<<31 - 1) {
+		t.Fatal("failed to add 2^31-1")
+	}
+	if got, want := f.available(), int32(1+-3+(1<<31-1)); got != want {
+		t.Fatalf("size = %d; want %d", got, want)
+	}
 
 }
diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go
index 769c0fe5..79389916 100644
--- a/vendor/golang.org/x/net/http2/server.go
+++ b/vendor/golang.org/x/net/http2/server.go
@@ -2347,6 +2347,19 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
 			foreachHeaderElement(v, rws.declareTrailer)
 		}
 
+		// "Connection" headers aren't allowed in HTTP/2 (RFC 7540, 8.1.2.2),
+		// but respect "Connection" == "close" to mean sending a GOAWAY and tearing
+		// down the TCP connection when idle, like we do for HTTP/1.
+		// TODO: remove more Connection-specific header fields here, in addition
+		// to "Connection".
+		if _, ok := rws.snapHeader["Connection"]; ok {
+			v := rws.snapHeader.Get("Connection")
+			delete(rws.snapHeader, "Connection")
+			if v == "close" {
+				rws.conn.startGracefulShutdown()
+			}
+		}
+
 		endStream := (rws.handlerDone && !rws.hasTrailers() && len(p) == 0) || isHeadResp
 		err = rws.conn.writeHeaders(rws.stream, &writeResHeaders{
 			streamID:      rws.stream.id,
diff --git a/vendor/golang.org/x/net/http2/server_test.go b/vendor/golang.org/x/net/http2/server_test.go
index baab0f14..02eb0dcc 100644
--- a/vendor/golang.org/x/net/http2/server_test.go
+++ b/vendor/golang.org/x/net/http2/server_test.go
@@ -3762,6 +3762,7 @@ func TestIssue20704Race(t *testing.T) {
 
 func TestServer_Rejects_TooSmall(t *testing.T) {
 	testServerResponse(t, func(w http.ResponseWriter, r *http.Request) error {
+		ioutil.ReadAll(r.Body)
 		return nil
 	}, func(st *serverTester) {
 		st.writeHeaders(HeadersFrameParam{
@@ -3778,3 +3779,65 @@ func TestServer_Rejects_TooSmall(t *testing.T) {
 		st.wantRSTStream(1, ErrCodeProtocol)
 	})
 }
+
+// Tests that a handler setting "Connection: close" results in a GOAWAY being sent,
+// and the connection still completing.
+func TestServerHandlerConnectionClose(t *testing.T) {
+	unblockHandler := make(chan bool, 1)
+	defer close(unblockHandler) // backup; in case of errors
+	testServerResponse(t, func(w http.ResponseWriter, r *http.Request) error {
+		w.Header().Set("Connection", "close")
+		w.Header().Set("Foo", "bar")
+		w.(http.Flusher).Flush()
+		<-unblockHandler
+		return nil
+	}, func(st *serverTester) {
+		st.writeHeaders(HeadersFrameParam{
+			StreamID:      1,
+			BlockFragment: st.encodeHeader(),
+			EndStream:     true,
+			EndHeaders:    true,
+		})
+		var sawGoAway bool
+		var sawRes bool
+		for {
+			f, err := st.readFrame()
+			if err == io.EOF {
+				break
+			}
+			if err != nil {
+				t.Fatal(err)
+			}
+			switch f := f.(type) {
+			case *GoAwayFrame:
+				sawGoAway = true
+				unblockHandler <- true
+				if f.LastStreamID != 1 || f.ErrCode != ErrCodeNo {
+					t.Errorf("unexpected GOAWAY frame: %v", summarizeFrame(f))
+				}
+			case *HeadersFrame:
+				goth := st.decodeHeader(f.HeaderBlockFragment())
+				if !sawGoAway {
+					t.Fatalf("unexpected Headers frame before GOAWAY: %s, %v", summarizeFrame(f), goth)
+				}
+				wanth := [][2]string{
+					{":status", "200"},
+					{"foo", "bar"},
+				}
+				if !reflect.DeepEqual(goth, wanth) {
+					t.Errorf("got headers %v; want %v", goth, wanth)
+				}
+				sawRes = true
+			case *DataFrame:
+				if f.StreamID != 1 || !f.StreamEnded() || len(f.Data()) != 0 {
+					t.Errorf("unexpected DATA frame: %v", summarizeFrame(f))
+				}
+			default:
+				t.Logf("unexpected frame: %v", summarizeFrame(f))
+			}
+		}
+		if !sawRes {
+			t.Errorf("didn't see response")
+		}
+	})
+}
diff --git a/vendor/golang.org/x/net/ipv4/batch.go b/vendor/golang.org/x/net/ipv4/batch.go
index b4454992..5ce9b358 100644
--- a/vendor/golang.org/x/net/ipv4/batch.go
+++ b/vendor/golang.org/x/net/ipv4/batch.go
@@ -9,7 +9,6 @@ package ipv4
 import (
 	"net"
 	"runtime"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -76,7 +75,7 @@ type Message = socket.Message
 // headers.
 func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -107,7 +106,7 @@ func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will write only a single message.
 func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -139,7 +138,7 @@ func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will read only a single message.
 func (c *packetHandler) ReadBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -170,7 +169,7 @@ func (c *packetHandler) ReadBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will write only a single message.
 func (c *packetHandler) WriteBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
diff --git a/vendor/golang.org/x/net/ipv4/dgramopt.go b/vendor/golang.org/x/net/ipv4/dgramopt.go
index 54d77d5f..36764492 100644
--- a/vendor/golang.org/x/net/ipv4/dgramopt.go
+++ b/vendor/golang.org/x/net/ipv4/dgramopt.go
@@ -6,7 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"syscall"
 
 	"golang.org/x/net/bpf"
 )
@@ -15,7 +14,7 @@ import (
 // multicast packets.
 func (c *dgramOpt) MulticastTTL() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastTTL]
 	if !ok {
@@ -28,7 +27,7 @@ func (c *dgramOpt) MulticastTTL() (int, error) {
 // outgoing multicast packets.
 func (c *dgramOpt) SetMulticastTTL(ttl int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastTTL]
 	if !ok {
@@ -41,7 +40,7 @@ func (c *dgramOpt) SetMulticastTTL(ttl int) error {
 // packet transmissions.
 func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
@@ -54,7 +53,7 @@ func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 // multicast packet transmissions.
 func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
@@ -67,7 +66,7 @@ func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 // should be copied and send back to the originator.
 func (c *dgramOpt) MulticastLoopback() (bool, error) {
 	if !c.ok() {
-		return false, syscall.EINVAL
+		return false, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
@@ -84,7 +83,7 @@ func (c *dgramOpt) MulticastLoopback() (bool, error) {
 // should be copied and send back to the originator.
 func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
@@ -104,7 +103,7 @@ func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 // configuration.
 func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinGroup]
 	if !ok {
@@ -122,7 +121,7 @@ func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 // source-specific group.
 func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveGroup]
 	if !ok {
@@ -143,7 +142,7 @@ func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 // routing configuration.
 func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinSourceGroup]
 	if !ok {
@@ -164,7 +163,7 @@ func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net
 // interface ifi.
 func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveSourceGroup]
 	if !ok {
@@ -186,7 +185,7 @@ func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source ne
 // ifi.
 func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoBlockSourceGroup]
 	if !ok {
@@ -207,7 +206,7 @@ func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source
 // group by ExcludeSourceSpecificGroup again on the interface ifi.
 func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoUnblockSourceGroup]
 	if !ok {
@@ -228,7 +227,7 @@ func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source
 // Currently only Linux supports this.
 func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
@@ -241,7 +240,7 @@ func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 // Currently only Linux supports this.
 func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
@@ -255,7 +254,7 @@ func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 // Only supported on Linux.
 func (c *dgramOpt) SetBPF(filter []bpf.RawInstruction) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoAttachFilter]
 	if !ok {
diff --git a/vendor/golang.org/x/net/ipv4/doc.go b/vendor/golang.org/x/net/ipv4/doc.go
index b43935a5..d1245554 100644
--- a/vendor/golang.org/x/net/ipv4/doc.go
+++ b/vendor/golang.org/x/net/ipv4/doc.go
@@ -241,4 +241,4 @@
 // IncludeSourceSpecificGroup may return an error.
 package ipv4 // import "golang.org/x/net/ipv4"
 
-// BUG(mikio): This package is not implemented on NaCl and Plan 9.
+// BUG(mikio): This package is not implemented on JS, NaCl and Plan 9.
diff --git a/vendor/golang.org/x/net/ipv4/endpoint.go b/vendor/golang.org/x/net/ipv4/endpoint.go
index 2ab87736..50094637 100644
--- a/vendor/golang.org/x/net/ipv4/endpoint.go
+++ b/vendor/golang.org/x/net/ipv4/endpoint.go
@@ -6,7 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"syscall"
 	"time"
 
 	"golang.org/x/net/internal/socket"
@@ -58,7 +57,7 @@ func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil }
 // SetControlMessage sets the per packet IP-level socket options.
 func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on)
 }
@@ -67,7 +66,7 @@ func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 // endpoint.
 func (c *PacketConn) SetDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.SetDeadline(t)
 }
@@ -76,7 +75,7 @@ func (c *PacketConn) SetDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetReadDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.SetReadDeadline(t)
 }
@@ -85,7 +84,7 @@ func (c *PacketConn) SetReadDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.SetWriteDeadline(t)
 }
@@ -93,7 +92,7 @@ func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 // Close closes the endpoint.
 func (c *PacketConn) Close() error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.Close()
 }
@@ -124,7 +123,7 @@ type RawConn struct {
 // SetControlMessage sets the per packet IP-level socket options.
 func (c *RawConn) SetControlMessage(cf ControlFlags, on bool) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return setControlMessage(c.dgramOpt.Conn, &c.packetHandler.rawOpt, cf, on)
 }
@@ -133,7 +132,7 @@ func (c *RawConn) SetControlMessage(cf ControlFlags, on bool) error {
 // endpoint.
 func (c *RawConn) SetDeadline(t time.Time) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.SetDeadline(t)
 }
@@ -142,7 +141,7 @@ func (c *RawConn) SetDeadline(t time.Time) error {
 // endpoint.
 func (c *RawConn) SetReadDeadline(t time.Time) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.SetReadDeadline(t)
 }
@@ -151,7 +150,7 @@ func (c *RawConn) SetReadDeadline(t time.Time) error {
 // endpoint.
 func (c *RawConn) SetWriteDeadline(t time.Time) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.SetWriteDeadline(t)
 }
@@ -159,7 +158,7 @@ func (c *RawConn) SetWriteDeadline(t time.Time) error {
 // Close closes the endpoint.
 func (c *RawConn) Close() error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.Close()
 }
diff --git a/vendor/golang.org/x/net/ipv4/genericopt.go b/vendor/golang.org/x/net/ipv4/genericopt.go
index 119bf841..587ae4a1 100644
--- a/vendor/golang.org/x/net/ipv4/genericopt.go
+++ b/vendor/golang.org/x/net/ipv4/genericopt.go
@@ -4,12 +4,10 @@
 
 package ipv4
 
-import "syscall"
-
 // TOS returns the type-of-service field value for outgoing packets.
 func (c *genericOpt) TOS() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoTOS]
 	if !ok {
@@ -22,7 +20,7 @@ func (c *genericOpt) TOS() (int, error) {
 // packets.
 func (c *genericOpt) SetTOS(tos int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoTOS]
 	if !ok {
@@ -34,7 +32,7 @@ func (c *genericOpt) SetTOS(tos int) error {
 // TTL returns the time-to-live field value for outgoing packets.
 func (c *genericOpt) TTL() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoTTL]
 	if !ok {
@@ -47,7 +45,7 @@ func (c *genericOpt) TTL() (int, error) {
 // packets.
 func (c *genericOpt) SetTTL(ttl int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoTTL]
 	if !ok {
diff --git a/vendor/golang.org/x/net/ipv4/header.go b/vendor/golang.org/x/net/ipv4/header.go
index c8822a6a..358afe2f 100644
--- a/vendor/golang.org/x/net/ipv4/header.go
+++ b/vendor/golang.org/x/net/ipv4/header.go
@@ -9,7 +9,6 @@ import (
 	"fmt"
 	"net"
 	"runtime"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -54,7 +53,7 @@ func (h *Header) String() string {
 // Marshal returns the binary encoding of h.
 func (h *Header) Marshal() ([]byte, error) {
 	if h == nil {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	if h.Len < HeaderLen {
 		return nil, errHeaderTooShort
diff --git a/vendor/golang.org/x/net/ipv4/helper.go b/vendor/golang.org/x/net/ipv4/helper.go
index a5052e32..8d8ff98e 100644
--- a/vendor/golang.org/x/net/ipv4/helper.go
+++ b/vendor/golang.org/x/net/ipv4/helper.go
@@ -10,6 +10,7 @@ import (
 )
 
 var (
+	errInvalidConn              = errors.New("invalid connection")
 	errMissingAddress           = errors.New("missing address")
 	errMissingHeader            = errors.New("missing header")
 	errHeaderTooShort           = errors.New("header too short")
diff --git a/vendor/golang.org/x/net/ipv4/multicast_test.go b/vendor/golang.org/x/net/ipv4/multicast_test.go
index bcf49736..2136a3c6 100644
--- a/vendor/golang.org/x/net/ipv4/multicast_test.go
+++ b/vendor/golang.org/x/net/ipv4/multicast_test.go
@@ -29,7 +29,7 @@ var packetConnReadWriteMulticastUDPTests = []struct {
 
 func TestPacketConnReadWriteMulticastUDP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "solaris", "windows":
+	case "js", "nacl", "plan9", "solaris", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagMulticast|net.FlagLoopback)
@@ -117,7 +117,7 @@ var packetConnReadWriteMulticastICMPTests = []struct {
 
 func TestPacketConnReadWriteMulticastICMP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "solaris", "windows":
+	case "js", "nacl", "plan9", "solaris", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if m, ok := nettest.SupportsRawIPSocket(); !ok {
diff --git a/vendor/golang.org/x/net/ipv4/multicastlistener_test.go b/vendor/golang.org/x/net/ipv4/multicastlistener_test.go
index e43fbbe0..ba2480e4 100644
--- a/vendor/golang.org/x/net/ipv4/multicastlistener_test.go
+++ b/vendor/golang.org/x/net/ipv4/multicastlistener_test.go
@@ -21,7 +21,7 @@ var udpMultipleGroupListenerTests = []net.Addr{
 
 func TestUDPSinglePacketConnWithMultipleGroupListeners(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if testing.Short() {
@@ -61,7 +61,7 @@ func TestUDPSinglePacketConnWithMultipleGroupListeners(t *testing.T) {
 
 func TestUDPMultiplePacketConnWithMultipleGroupListeners(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if testing.Short() {
@@ -116,7 +116,7 @@ func TestUDPMultiplePacketConnWithMultipleGroupListeners(t *testing.T) {
 
 func TestUDPPerInterfaceSinglePacketConnWithSingleGroupListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if testing.Short() {
@@ -172,7 +172,7 @@ func TestUDPPerInterfaceSinglePacketConnWithSingleGroupListener(t *testing.T) {
 
 func TestIPSingleRawConnWithSingleGroupListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if testing.Short() {
@@ -217,7 +217,7 @@ func TestIPSingleRawConnWithSingleGroupListener(t *testing.T) {
 
 func TestIPPerInterfaceSingleRawConnWithSingleGroupListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if testing.Short() {
diff --git a/vendor/golang.org/x/net/ipv4/multicastsockopt_test.go b/vendor/golang.org/x/net/ipv4/multicastsockopt_test.go
index f7efac24..c0a26800 100644
--- a/vendor/golang.org/x/net/ipv4/multicastsockopt_test.go
+++ b/vendor/golang.org/x/net/ipv4/multicastsockopt_test.go
@@ -26,7 +26,7 @@ var packetConnMulticastSocketOptionTests = []struct {
 
 func TestPacketConnMulticastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "js", "nacl", "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagMulticast|net.FlagLoopback)
@@ -66,7 +66,7 @@ var rawConnMulticastSocketOptionTests = []struct {
 
 func TestRawConnMulticastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "js", "nacl", "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if m, ok := nettest.SupportsRawIPSocket(); !ok {
diff --git a/vendor/golang.org/x/net/ipv4/packet.go b/vendor/golang.org/x/net/ipv4/packet.go
index f00f5b05..966bb776 100644
--- a/vendor/golang.org/x/net/ipv4/packet.go
+++ b/vendor/golang.org/x/net/ipv4/packet.go
@@ -6,7 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -28,7 +27,7 @@ func (c *packetHandler) ok() bool { return c != nil && c.IPConn != nil && c.Conn
 // header h, the payload p and the control message cm.
 func (c *packetHandler) ReadFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
 	if !c.ok() {
-		return nil, nil, nil, syscall.EINVAL
+		return nil, nil, nil, errInvalidConn
 	}
 	return c.readFrom(b)
 }
@@ -63,7 +62,7 @@ func slicePacket(b []byte) (h, p []byte, err error) {
 //	Options       = optional
 func (c *packetHandler) WriteTo(h *Header, p []byte, cm *ControlMessage) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.writeTo(h, p, cm)
 }
diff --git a/vendor/golang.org/x/net/ipv4/payload_cmsg.go b/vendor/golang.org/x/net/ipv4/payload_cmsg.go
index 3f06d760..eec520c4 100644
--- a/vendor/golang.org/x/net/ipv4/payload_cmsg.go
+++ b/vendor/golang.org/x/net/ipv4/payload_cmsg.go
@@ -6,10 +6,7 @@
 
 package ipv4
 
-import (
-	"net"
-	"syscall"
-)
+import "net"
 
 // ReadFrom reads a payload of the received IPv4 datagram, from the
 // endpoint c, copying the payload into b. It returns the number of
@@ -17,7 +14,7 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
 	}
 	return c.readFrom(b)
 }
@@ -30,7 +27,7 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	return c.writeTo(b, cm, dst)
 }
diff --git a/vendor/golang.org/x/net/ipv4/payload_nocmsg.go b/vendor/golang.org/x/net/ipv4/payload_nocmsg.go
index 3926de70..8cb21b39 100644
--- a/vendor/golang.org/x/net/ipv4/payload_nocmsg.go
+++ b/vendor/golang.org/x/net/ipv4/payload_nocmsg.go
@@ -6,10 +6,7 @@
 
 package ipv4
 
-import (
-	"net"
-	"syscall"
-)
+import "net"
 
 // ReadFrom reads a payload of the received IPv4 datagram, from the
 // endpoint c, copying the payload into b. It returns the number of
@@ -17,7 +14,7 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
 	}
 	if n, src, err = c.PacketConn.ReadFrom(b); err != nil {
 		return 0, nil, nil, err
@@ -33,7 +30,7 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	if dst == nil {
 		return 0, errMissingAddress
diff --git a/vendor/golang.org/x/net/ipv4/readwrite_go1_8_test.go b/vendor/golang.org/x/net/ipv4/readwrite_go1_8_test.go
index 1cd926e7..83bf927e 100644
--- a/vendor/golang.org/x/net/ipv4/readwrite_go1_8_test.go
+++ b/vendor/golang.org/x/net/ipv4/readwrite_go1_8_test.go
@@ -22,7 +22,7 @@ import (
 
 func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		b.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -126,7 +126,7 @@ func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 
 func TestPacketConnConcurrentReadWriteUnicast(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/vendor/golang.org/x/net/ipv4/readwrite_go1_9_test.go b/vendor/golang.org/x/net/ipv4/readwrite_go1_9_test.go
index 365de022..ef76c8a7 100644
--- a/vendor/golang.org/x/net/ipv4/readwrite_go1_9_test.go
+++ b/vendor/golang.org/x/net/ipv4/readwrite_go1_9_test.go
@@ -22,7 +22,7 @@ import (
 
 func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		b.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -172,7 +172,7 @@ func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 
 func TestPacketConnConcurrentReadWriteUnicast(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/vendor/golang.org/x/net/ipv4/readwrite_test.go b/vendor/golang.org/x/net/ipv4/readwrite_test.go
index 3896a8ae..1b7f7488 100644
--- a/vendor/golang.org/x/net/ipv4/readwrite_test.go
+++ b/vendor/golang.org/x/net/ipv4/readwrite_test.go
@@ -61,7 +61,7 @@ func BenchmarkReadWriteUnicast(b *testing.B) {
 
 func TestPacketConnConcurrentReadWriteUnicastUDP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/vendor/golang.org/x/net/ipv4/unicast_test.go b/vendor/golang.org/x/net/ipv4/unicast_test.go
index 02c089f0..274a558c 100644
--- a/vendor/golang.org/x/net/ipv4/unicast_test.go
+++ b/vendor/golang.org/x/net/ipv4/unicast_test.go
@@ -20,7 +20,7 @@ import (
 
 func TestPacketConnReadWriteUnicastUDP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback)
@@ -71,7 +71,7 @@ func TestPacketConnReadWriteUnicastUDP(t *testing.T) {
 
 func TestPacketConnReadWriteUnicastICMP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if m, ok := nettest.SupportsRawIPSocket(); !ok {
@@ -157,7 +157,7 @@ func TestPacketConnReadWriteUnicastICMP(t *testing.T) {
 
 func TestRawConnReadWriteUnicastICMP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if m, ok := nettest.SupportsRawIPSocket(); !ok {
diff --git a/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go b/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go
index db5213b9..2bfda7ff 100644
--- a/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go
+++ b/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go
@@ -16,7 +16,7 @@ import (
 
 func TestConnUnicastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback)
@@ -62,7 +62,7 @@ var packetConnUnicastSocketOptionTests = []struct {
 
 func TestPacketConnUnicastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback)
@@ -88,7 +88,7 @@ func TestPacketConnUnicastSocketOptions(t *testing.T) {
 
 func TestRawConnUnicastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if m, ok := nettest.SupportsRawIPSocket(); !ok {
diff --git a/vendor/golang.org/x/net/ipv6/batch.go b/vendor/golang.org/x/net/ipv6/batch.go
index 4f5fe683..10d64924 100644
--- a/vendor/golang.org/x/net/ipv6/batch.go
+++ b/vendor/golang.org/x/net/ipv6/batch.go
@@ -9,7 +9,6 @@ package ipv6
 import (
 	"net"
 	"runtime"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -67,7 +66,7 @@ type Message = socket.Message
 // On other platforms, this method will read only a single message.
 func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -98,7 +97,7 @@ func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will write only a single message.
 func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
diff --git a/vendor/golang.org/x/net/ipv6/dgramopt.go b/vendor/golang.org/x/net/ipv6/dgramopt.go
index 703dafe8..eea4fde2 100644
--- a/vendor/golang.org/x/net/ipv6/dgramopt.go
+++ b/vendor/golang.org/x/net/ipv6/dgramopt.go
@@ -6,7 +6,6 @@ package ipv6
 
 import (
 	"net"
-	"syscall"
 
 	"golang.org/x/net/bpf"
 )
@@ -15,7 +14,7 @@ import (
 // multicast packets.
 func (c *dgramOpt) MulticastHopLimit() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastHopLimit]
 	if !ok {
@@ -28,7 +27,7 @@ func (c *dgramOpt) MulticastHopLimit() (int, error) {
 // outgoing multicast packets.
 func (c *dgramOpt) SetMulticastHopLimit(hoplim int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastHopLimit]
 	if !ok {
@@ -41,7 +40,7 @@ func (c *dgramOpt) SetMulticastHopLimit(hoplim int) error {
 // packet transmissions.
 func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
@@ -54,7 +53,7 @@ func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 // multicast packet transmissions.
 func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
@@ -67,7 +66,7 @@ func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 // should be copied and send back to the originator.
 func (c *dgramOpt) MulticastLoopback() (bool, error) {
 	if !c.ok() {
-		return false, syscall.EINVAL
+		return false, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
@@ -84,7 +83,7 @@ func (c *dgramOpt) MulticastLoopback() (bool, error) {
 // should be copied and send back to the originator.
 func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
@@ -104,7 +103,7 @@ func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 // configuration.
 func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinGroup]
 	if !ok {
@@ -122,7 +121,7 @@ func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 // source-specific group.
 func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveGroup]
 	if !ok {
@@ -143,7 +142,7 @@ func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 // routing configuration.
 func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinSourceGroup]
 	if !ok {
@@ -164,7 +163,7 @@ func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net
 // interface ifi.
 func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveSourceGroup]
 	if !ok {
@@ -186,7 +185,7 @@ func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source ne
 // ifi.
 func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoBlockSourceGroup]
 	if !ok {
@@ -207,7 +206,7 @@ func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source
 // group by ExcludeSourceSpecificGroup again on the interface ifi.
 func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoUnblockSourceGroup]
 	if !ok {
@@ -230,7 +229,7 @@ func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source
 // field is located.
 func (c *dgramOpt) Checksum() (on bool, offset int, err error) {
 	if !c.ok() {
-		return false, 0, syscall.EINVAL
+		return false, 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoChecksum]
 	if !ok {
@@ -251,7 +250,7 @@ func (c *dgramOpt) Checksum() (on bool, offset int, err error) {
 // checksum field is located.
 func (c *dgramOpt) SetChecksum(on bool, offset int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoChecksum]
 	if !ok {
@@ -266,7 +265,7 @@ func (c *dgramOpt) SetChecksum(on bool, offset int) error {
 // ICMPFilter returns an ICMP filter.
 func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
@@ -278,7 +277,7 @@ func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 // SetICMPFilter deploys the ICMP filter.
 func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
@@ -292,7 +291,7 @@ func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 // Only supported on Linux.
 func (c *dgramOpt) SetBPF(filter []bpf.RawInstruction) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoAttachFilter]
 	if !ok {
diff --git a/vendor/golang.org/x/net/ipv6/doc.go b/vendor/golang.org/x/net/ipv6/doc.go
index 664a97de..cb400062 100644
--- a/vendor/golang.org/x/net/ipv6/doc.go
+++ b/vendor/golang.org/x/net/ipv6/doc.go
@@ -240,4 +240,4 @@
 // IncludeSourceSpecificGroup may return an error.
 package ipv6 // import "golang.org/x/net/ipv6"
 
-// BUG(mikio): This package is not implemented on NaCl and Plan 9.
+// BUG(mikio): This package is not implemented on JS, NaCl and Plan 9.
diff --git a/vendor/golang.org/x/net/ipv6/endpoint.go b/vendor/golang.org/x/net/ipv6/endpoint.go
index 0624c174..93257563 100644
--- a/vendor/golang.org/x/net/ipv6/endpoint.go
+++ b/vendor/golang.org/x/net/ipv6/endpoint.go
@@ -6,7 +6,6 @@ package ipv6
 
 import (
 	"net"
-	"syscall"
 	"time"
 
 	"golang.org/x/net/internal/socket"
@@ -34,7 +33,7 @@ func (c *genericOpt) ok() bool { return c != nil && c.Conn != nil }
 // with the endpoint.
 func (c *Conn) PathMTU() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoPathMTU]
 	if !ok {
@@ -76,7 +75,7 @@ func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil }
 // socket options.
 func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on)
 }
@@ -85,7 +84,7 @@ func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 // endpoint.
 func (c *PacketConn) SetDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.SetDeadline(t)
 }
@@ -94,7 +93,7 @@ func (c *PacketConn) SetDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetReadDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.SetReadDeadline(t)
 }
@@ -103,7 +102,7 @@ func (c *PacketConn) SetReadDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.SetWriteDeadline(t)
 }
@@ -111,7 +110,7 @@ func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 // Close closes the endpoint.
 func (c *PacketConn) Close() error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.Close()
 }
diff --git a/vendor/golang.org/x/net/ipv6/genericopt.go b/vendor/golang.org/x/net/ipv6/genericopt.go
index e9dbc2e1..1a18f754 100644
--- a/vendor/golang.org/x/net/ipv6/genericopt.go
+++ b/vendor/golang.org/x/net/ipv6/genericopt.go
@@ -4,13 +4,11 @@
 
 package ipv6
 
-import "syscall"
-
 // TrafficClass returns the traffic class field value for outgoing
 // packets.
 func (c *genericOpt) TrafficClass() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoTrafficClass]
 	if !ok {
@@ -23,7 +21,7 @@ func (c *genericOpt) TrafficClass() (int, error) {
 // outgoing packets.
 func (c *genericOpt) SetTrafficClass(tclass int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoTrafficClass]
 	if !ok {
@@ -35,7 +33,7 @@ func (c *genericOpt) SetTrafficClass(tclass int) error {
 // HopLimit returns the hop limit field value for outgoing packets.
 func (c *genericOpt) HopLimit() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoHopLimit]
 	if !ok {
@@ -48,7 +46,7 @@ func (c *genericOpt) HopLimit() (int, error) {
 // packets.
 func (c *genericOpt) SetHopLimit(hoplim int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoHopLimit]
 	if !ok {
diff --git a/vendor/golang.org/x/net/ipv6/helper.go b/vendor/golang.org/x/net/ipv6/helper.go
index 25974013..7ac53522 100644
--- a/vendor/golang.org/x/net/ipv6/helper.go
+++ b/vendor/golang.org/x/net/ipv6/helper.go
@@ -10,6 +10,7 @@ import (
 )
 
 var (
+	errInvalidConn     = errors.New("invalid connection")
 	errMissingAddress  = errors.New("missing address")
 	errHeaderTooShort  = errors.New("header too short")
 	errInvalidConnType = errors.New("invalid conn type")
diff --git a/vendor/golang.org/x/net/ipv6/icmp_test.go b/vendor/golang.org/x/net/ipv6/icmp_test.go
index d8e9675d..bdde2fdb 100644
--- a/vendor/golang.org/x/net/ipv6/icmp_test.go
+++ b/vendor/golang.org/x/net/ipv6/icmp_test.go
@@ -34,7 +34,7 @@ func TestICMPString(t *testing.T) {
 
 func TestICMPFilter(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -61,7 +61,7 @@ func TestICMPFilter(t *testing.T) {
 
 func TestSetICMPFilter(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/multicast_test.go b/vendor/golang.org/x/net/ipv6/multicast_test.go
index 69a21cd3..50442c36 100644
--- a/vendor/golang.org/x/net/ipv6/multicast_test.go
+++ b/vendor/golang.org/x/net/ipv6/multicast_test.go
@@ -29,7 +29,7 @@ var packetConnReadWriteMulticastUDPTests = []struct {
 
 func TestPacketConnReadWriteMulticastUDP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -129,7 +129,7 @@ var packetConnReadWriteMulticastICMPTests = []struct {
 
 func TestPacketConnReadWriteMulticastICMP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/multicastlistener_test.go b/vendor/golang.org/x/net/ipv6/multicastlistener_test.go
index b27713e2..1ee0549d 100644
--- a/vendor/golang.org/x/net/ipv6/multicastlistener_test.go
+++ b/vendor/golang.org/x/net/ipv6/multicastlistener_test.go
@@ -21,7 +21,7 @@ var udpMultipleGroupListenerTests = []net.Addr{
 
 func TestUDPSinglePacketConnWithMultipleGroupListeners(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -61,7 +61,7 @@ func TestUDPSinglePacketConnWithMultipleGroupListeners(t *testing.T) {
 
 func TestUDPMultiplePacketConnWithMultipleGroupListeners(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -116,7 +116,7 @@ func TestUDPMultiplePacketConnWithMultipleGroupListeners(t *testing.T) {
 
 func TestUDPPerInterfaceSinglePacketConnWithSingleGroupListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -172,7 +172,7 @@ func TestUDPPerInterfaceSinglePacketConnWithSingleGroupListener(t *testing.T) {
 
 func TestIPSinglePacketConnWithSingleGroupListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -216,7 +216,7 @@ func TestIPPerInterfaceSinglePacketConnWithSingleGroupListener(t *testing.T) {
 	switch runtime.GOOS {
 	case "darwin", "dragonfly", "openbsd": // platforms that return fe80::1%lo0: bind: can't assign requested address
 		t.Skipf("not supported on %s", runtime.GOOS)
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/multicastsockopt_test.go b/vendor/golang.org/x/net/ipv6/multicastsockopt_test.go
index 9e6b902d..9906e876 100644
--- a/vendor/golang.org/x/net/ipv6/multicastsockopt_test.go
+++ b/vendor/golang.org/x/net/ipv6/multicastsockopt_test.go
@@ -26,7 +26,7 @@ var packetConnMulticastSocketOptionTests = []struct {
 
 func TestPacketConnMulticastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/payload_cmsg.go b/vendor/golang.org/x/net/ipv6/payload_cmsg.go
index 4ee4b062..b7ccdbda 100644
--- a/vendor/golang.org/x/net/ipv6/payload_cmsg.go
+++ b/vendor/golang.org/x/net/ipv6/payload_cmsg.go
@@ -6,10 +6,7 @@
 
 package ipv6
 
-import (
-	"net"
-	"syscall"
-)
+import "net"
 
 // ReadFrom reads a payload of the received IPv6 datagram, from the
 // endpoint c, copying the payload into b. It returns the number of
@@ -17,7 +14,7 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
 	}
 	return c.readFrom(b)
 }
@@ -29,7 +26,7 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // cm may be nil if control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	return c.writeTo(b, cm, dst)
 }
diff --git a/vendor/golang.org/x/net/ipv6/payload_nocmsg.go b/vendor/golang.org/x/net/ipv6/payload_nocmsg.go
index 99a43542..83585072 100644
--- a/vendor/golang.org/x/net/ipv6/payload_nocmsg.go
+++ b/vendor/golang.org/x/net/ipv6/payload_nocmsg.go
@@ -6,10 +6,7 @@
 
 package ipv6
 
-import (
-	"net"
-	"syscall"
-)
+import "net"
 
 // ReadFrom reads a payload of the received IPv6 datagram, from the
 // endpoint c, copying the payload into b. It returns the number of
@@ -17,7 +14,7 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
 	}
 	if n, src, err = c.PacketConn.ReadFrom(b); err != nil {
 		return 0, nil, nil, err
@@ -32,7 +29,7 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // cm may be nil if control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	if dst == nil {
 		return 0, errMissingAddress
diff --git a/vendor/golang.org/x/net/ipv6/readwrite_go1_8_test.go b/vendor/golang.org/x/net/ipv6/readwrite_go1_8_test.go
index c11d92ae..b3fbda13 100644
--- a/vendor/golang.org/x/net/ipv6/readwrite_go1_8_test.go
+++ b/vendor/golang.org/x/net/ipv6/readwrite_go1_8_test.go
@@ -22,7 +22,7 @@ import (
 
 func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		b.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -123,7 +123,7 @@ func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 
 func TestPacketConnConcurrentReadWriteUnicast(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/vendor/golang.org/x/net/ipv6/readwrite_go1_9_test.go b/vendor/golang.org/x/net/ipv6/readwrite_go1_9_test.go
index e2fd7337..7110619b 100644
--- a/vendor/golang.org/x/net/ipv6/readwrite_go1_9_test.go
+++ b/vendor/golang.org/x/net/ipv6/readwrite_go1_9_test.go
@@ -22,7 +22,7 @@ import (
 
 func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		b.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -169,7 +169,7 @@ func BenchmarkPacketConnReadWriteUnicast(b *testing.B) {
 
 func TestPacketConnConcurrentReadWriteUnicast(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/vendor/golang.org/x/net/ipv6/readwrite_test.go b/vendor/golang.org/x/net/ipv6/readwrite_test.go
index 206b915c..668208f2 100644
--- a/vendor/golang.org/x/net/ipv6/readwrite_test.go
+++ b/vendor/golang.org/x/net/ipv6/readwrite_test.go
@@ -65,7 +65,7 @@ func BenchmarkReadWriteUnicast(b *testing.B) {
 
 func TestPacketConnConcurrentReadWriteUnicastUDP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/sockopt_test.go b/vendor/golang.org/x/net/ipv6/sockopt_test.go
index 774338db..add045e3 100644
--- a/vendor/golang.org/x/net/ipv6/sockopt_test.go
+++ b/vendor/golang.org/x/net/ipv6/sockopt_test.go
@@ -19,7 +19,7 @@ var supportsIPv6 bool = nettest.SupportsIPv6()
 
 func TestConnInitiatorPathMTU(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -57,7 +57,7 @@ func TestConnInitiatorPathMTU(t *testing.T) {
 
 func TestConnResponderPathMTU(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -95,7 +95,7 @@ func TestConnResponderPathMTU(t *testing.T) {
 
 func TestPacketConnChecksum(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/unicast_test.go b/vendor/golang.org/x/net/ipv6/unicast_test.go
index a0b7d955..159bb39b 100644
--- a/vendor/golang.org/x/net/ipv6/unicast_test.go
+++ b/vendor/golang.org/x/net/ipv6/unicast_test.go
@@ -20,7 +20,7 @@ import (
 
 func TestPacketConnReadWriteUnicastUDP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -78,7 +78,7 @@ func TestPacketConnReadWriteUnicastUDP(t *testing.T) {
 
 func TestPacketConnReadWriteUnicastICMP(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go b/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go
index e175dccf..69adefe8 100644
--- a/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go
+++ b/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go
@@ -16,7 +16,7 @@ import (
 
 func TestConnUnicastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
@@ -61,7 +61,7 @@ var packetConnUnicastSocketOptionTests = []struct {
 
 func TestPacketConnUnicastSocketOptions(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "js", "nacl", "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv6 {
diff --git a/vendor/golang.org/x/sys/windows/service.go b/vendor/golang.org/x/sys/windows/service.go
index 24aa90bb..62fc31b4 100644
--- a/vendor/golang.org/x/sys/windows/service.go
+++ b/vendor/golang.org/x/sys/windows/service.go
@@ -43,6 +43,11 @@ const (
 
 	SC_STATUS_PROCESS_INFO = 0
 
+	SC_ACTION_NONE        = 0
+	SC_ACTION_RESTART     = 1
+	SC_ACTION_REBOOT      = 2
+	SC_ACTION_RUN_COMMAND = 3
+
 	SERVICE_STOPPED          = 1
 	SERVICE_START_PENDING    = 2
 	SERVICE_STOP_PENDING     = 3
@@ -148,6 +153,19 @@ type ENUM_SERVICE_STATUS_PROCESS struct {
 	ServiceStatusProcess SERVICE_STATUS_PROCESS
 }
 
+type SERVICE_FAILURE_ACTIONS struct {
+	ResetPeriod  uint32
+	RebootMsg    *uint16
+	Command      *uint16
+	ActionsCount uint32
+	Actions      *SC_ACTION
+}
+
+type SC_ACTION struct {
+	Type  uint32
+	Delay uint32
+}
+
 //sys	CloseServiceHandle(handle Handle) (err error) = advapi32.CloseServiceHandle
 //sys	CreateService(mgr Handle, serviceName *uint16, displayName *uint16, access uint32, srvType uint32, startType uint32, errCtl uint32, pathName *uint16, loadOrderGroup *uint16, tagId *uint32, dependencies *uint16, serviceStartName *uint16, password *uint16) (handle Handle, err error) [failretval==0] = advapi32.CreateServiceW
 //sys	OpenService(mgr Handle, serviceName *uint16, access uint32) (handle Handle, err error) [failretval==0] = advapi32.OpenServiceW
diff --git a/vendor/golang.org/x/sys/windows/svc/mgr/config.go b/vendor/golang.org/x/sys/windows/svc/mgr/config.go
index 03bf41f5..d804e31f 100644
--- a/vendor/golang.org/x/sys/windows/svc/mgr/config.go
+++ b/vendor/golang.org/x/sys/windows/svc/mgr/config.go
@@ -88,23 +88,11 @@ func (s *Service) Config() (Config, error) {
 		}
 	}
 
-	var p2 *windows.SERVICE_DESCRIPTION
-	n = uint32(1024)
-	for {
-		b := make([]byte, n)
-		p2 = (*windows.SERVICE_DESCRIPTION)(unsafe.Pointer(&b[0]))
-		err := windows.QueryServiceConfig2(s.Handle,
-			windows.SERVICE_CONFIG_DESCRIPTION, &b[0], n, &n)
-		if err == nil {
-			break
-		}
-		if err.(syscall.Errno) != syscall.ERROR_INSUFFICIENT_BUFFER {
-			return Config{}, err
-		}
-		if n <= uint32(len(b)) {
-			return Config{}, err
-		}
+	b, err := s.queryServiceConfig2(windows.SERVICE_CONFIG_DESCRIPTION)
+	if err != nil {
+		return Config{}, err
 	}
+	p2 := (*windows.SERVICE_DESCRIPTION)(unsafe.Pointer(&b[0]))
 
 	return Config{
 		ServiceType:      p.ServiceType,
@@ -137,3 +125,21 @@ func (s *Service) UpdateConfig(c Config) error {
 	}
 	return updateDescription(s.Handle, c.Description)
 }
+
+// queryServiceConfig2 calls Windows QueryServiceConfig2 with infoLevel parameter and returns retrieved service configuration information.
+func (s *Service) queryServiceConfig2(infoLevel uint32) ([]byte, error) {
+	n := uint32(1024)
+	for {
+		b := make([]byte, n)
+		err := windows.QueryServiceConfig2(s.Handle, infoLevel, &b[0], n, &n)
+		if err == nil {
+			return b, nil
+		}
+		if err.(syscall.Errno) != syscall.ERROR_INSUFFICIENT_BUFFER {
+			return nil, err
+		}
+		if n <= uint32(len(b)) {
+			return nil, err
+		}
+	}
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/mgr/mgr_test.go b/vendor/golang.org/x/sys/windows/svc/mgr/mgr_test.go
index 1569a221..13f1f381 100644
--- a/vendor/golang.org/x/sys/windows/svc/mgr/mgr_test.go
+++ b/vendor/golang.org/x/sys/windows/svc/mgr/mgr_test.go
@@ -95,6 +95,85 @@ func testConfig(t *testing.T, s *mgr.Service, should mgr.Config) mgr.Config {
 	return is
 }
 
+func testRecoveryActions(t *testing.T, s *mgr.Service, should []mgr.RecoveryAction) {
+	is, err := s.RecoveryActions()
+	if err != nil {
+		t.Fatalf("RecoveryActions failed: %s", err)
+	}
+	if len(should) != len(is) {
+		t.Errorf("recovery action mismatch: contains %v actions, but should have %v", len(is), len(should))
+	}
+	for i, _ := range is {
+		if should[i].Type != is[i].Type {
+			t.Errorf("recovery action mismatch: Type is %v, but should have %v", is[i].Type, should[i].Type)
+		}
+		if should[i].Delay != is[i].Delay {
+			t.Errorf("recovery action mismatch: Delay is %v, but should have %v", is[i].Delay, should[i].Delay)
+		}
+	}
+}
+
+func testResetPeriod(t *testing.T, s *mgr.Service, should uint32) {
+	is, err := s.ResetPeriod()
+	if err != nil {
+		t.Fatalf("ResetPeriod failed: %s", err)
+	}
+	if should != is {
+		t.Errorf("reset period mismatch: reset period is %v, but should have %v", is, should)
+	}
+}
+
+func testSetRecoveryActions(t *testing.T, s *mgr.Service) {
+	r := []mgr.RecoveryAction{
+		mgr.RecoveryAction{
+			Type:  mgr.NoAction,
+			Delay: 60000 * time.Millisecond,
+		},
+		mgr.RecoveryAction{
+			Type:  mgr.ServiceRestart,
+			Delay: 4 * time.Minute,
+		},
+		mgr.RecoveryAction{
+			Type:  mgr.ServiceRestart,
+			Delay: time.Minute,
+		},
+		mgr.RecoveryAction{
+			Type:  mgr.RunCommand,
+			Delay: 4000 * time.Millisecond,
+		},
+	}
+
+	// 4 recovery actions with reset period
+	err := s.SetRecoveryActions(r, uint32(10000))
+	if err != nil {
+		t.Fatalf("SetRecoveryActions failed: %v", err)
+	}
+	testRecoveryActions(t, s, r)
+	testResetPeriod(t, s, uint32(10000))
+
+	// Infinite reset period
+	err = s.SetRecoveryActions(r, syscall.INFINITE)
+	if err != nil {
+		t.Fatalf("SetRecoveryActions failed: %v", err)
+	}
+	testRecoveryActions(t, s, r)
+	testResetPeriod(t, s, syscall.INFINITE)
+
+	// nil recovery actions
+	err = s.SetRecoveryActions(nil, 0)
+	if err.Error() != "recoveryActions cannot be nil" {
+		t.Fatalf("SetRecoveryActions failed with unexpected error message of %q", err)
+	}
+
+	// Delete all recovery actions and reset period
+	err = s.ResetRecoveryActions()
+	if err != nil {
+		t.Fatalf("ResetRecoveryActions failed: %v", err)
+	}
+	testRecoveryActions(t, s, nil)
+	testResetPeriod(t, s, 0)
+}
+
 func remove(t *testing.T, s *mgr.Service) {
 	err := s.Delete()
 	if err != nil {
@@ -165,5 +244,7 @@ func TestMyService(t *testing.T) {
 		t.Errorf("ListServices failed to find %q service", name)
 	}
 
+	testSetRecoveryActions(t, s)
+
 	remove(t, s)
 }
diff --git a/vendor/golang.org/x/sys/windows/svc/mgr/recovery.go b/vendor/golang.org/x/sys/windows/svc/mgr/recovery.go
new file mode 100644
index 00000000..9243dca2
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/mgr/recovery.go
@@ -0,0 +1,96 @@
+// Copyright 2018 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.
+
+// +build windows
+
+package mgr
+
+import (
+	"errors"
+	"time"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+const (
+	// Possible recovery actions that the service control manager can perform.
+	NoAction       = windows.SC_ACTION_NONE        // no action
+	ComputerReboot = windows.SC_ACTION_REBOOT      // reboot the computer
+	ServiceRestart = windows.SC_ACTION_RESTART     // restart the service
+	RunCommand     = windows.SC_ACTION_RUN_COMMAND // run a command
+)
+
+// RecoveryAction represents an action that the service control manager can perform when service fails.
+// A service is considered failed when it terminates without reporting a status of SERVICE_STOPPED to the service controller.
+type RecoveryAction struct {
+	Type  int           // one of NoAction, ComputerReboot, ServiceRestart or RunCommand
+	Delay time.Duration // the time to wait before performing the specified action
+}
+
+// SetRecoveryActions sets actions that service controller performs when service fails and
+// the time after which to reset the service failure count to zero if there are no failures, in seconds.
+// Specify INFINITE to indicate that service failure count should never be reset.
+func (s *Service) SetRecoveryActions(recoveryActions []RecoveryAction, resetPeriod uint32) error {
+	if recoveryActions == nil {
+		return errors.New("recoveryActions cannot be nil")
+	}
+	actions := []windows.SC_ACTION{}
+	for _, a := range recoveryActions {
+		action := windows.SC_ACTION{
+			Type:  uint32(a.Type),
+			Delay: uint32(a.Delay.Nanoseconds() / 1000000),
+		}
+		actions = append(actions, action)
+	}
+	rActions := windows.SERVICE_FAILURE_ACTIONS{
+		ActionsCount: uint32(len(actions)),
+		Actions:      &actions[0],
+		ResetPeriod:  resetPeriod,
+	}
+	return windows.ChangeServiceConfig2(s.Handle, windows.SERVICE_CONFIG_FAILURE_ACTIONS, (*byte)(unsafe.Pointer(&rActions)))
+}
+
+// RecoveryActions returns actions that service controller performs when service fails.
+// The service control manager counts the number of times service s has failed since the system booted.
+// The count is reset to 0 if the service has not failed for ResetPeriod seconds.
+// When the service fails for the Nth time, the service controller performs the action specified in element [N-1] of returned slice.
+// If N is greater than slice length, the service controller repeats the last action in the slice.
+func (s *Service) RecoveryActions() ([]RecoveryAction, error) {
+	b, err := s.queryServiceConfig2(windows.SERVICE_CONFIG_FAILURE_ACTIONS)
+	if err != nil {
+		return nil, err
+	}
+	p := (*windows.SERVICE_FAILURE_ACTIONS)(unsafe.Pointer(&b[0]))
+	if p.Actions == nil {
+		return nil, err
+	}
+
+	var recoveryActions []RecoveryAction
+	actions := (*[1024]windows.SC_ACTION)(unsafe.Pointer(p.Actions))[:p.ActionsCount]
+	for _, action := range actions {
+		recoveryActions = append(recoveryActions, RecoveryAction{Type: int(action.Type), Delay: time.Duration(action.Delay) * time.Millisecond})
+	}
+	return recoveryActions, nil
+}
+
+// ResetRecoveryActions deletes both reset period and array of failure actions.
+func (s *Service) ResetRecoveryActions() error {
+	actions := make([]windows.SC_ACTION, 1)
+	rActions := windows.SERVICE_FAILURE_ACTIONS{
+		Actions: &actions[0],
+	}
+	return windows.ChangeServiceConfig2(s.Handle, windows.SERVICE_CONFIG_FAILURE_ACTIONS, (*byte)(unsafe.Pointer(&rActions)))
+}
+
+// ResetPeriod is the time after which to reset the service failure
+// count to zero if there are no failures, in seconds.
+func (s *Service) ResetPeriod() (uint32, error) {
+	b, err := s.queryServiceConfig2(windows.SERVICE_CONFIG_FAILURE_ACTIONS)
+	if err != nil {
+		return 0, err
+	}
+	p := (*windows.SERVICE_FAILURE_ACTIONS)(unsafe.Pointer(&b[0]))
+	return p.ResetPeriod, nil
+}