Vendor dependencies with dep

vendor/golang.org/x/net/icmp/example_test.go

@@ -0,0 +1,63 @@
+// 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 icmp_test
+
+import (
+	"log"
+	"net"
+	"os"
+	"runtime"
+
+	"golang.org/x/net/icmp"
+	"golang.org/x/net/ipv6"
+)
+
+func ExamplePacketConn_nonPrivilegedPing() {
+	switch runtime.GOOS {
+	case "darwin":
+	case "linux":
+		log.Println("you may need to adjust the net.ipv4.ping_group_range kernel state")
+	default:
+		log.Println("not supported on", runtime.GOOS)
+		return
+	}
+
+	c, err := icmp.ListenPacket("udp6", "fe80::1%en0")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer c.Close()
+
+	wm := icmp.Message{
+		Type: ipv6.ICMPTypeEchoRequest, Code: 0,
+		Body: &icmp.Echo{
+			ID: os.Getpid() & 0xffff, Seq: 1,
+			Data: []byte("HELLO-R-U-THERE"),
+		},
+	}
+	wb, err := wm.Marshal(nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+	if _, err := c.WriteTo(wb, &net.UDPAddr{IP: net.ParseIP("ff02::1"), Zone: "en0"}); err != nil {
+		log.Fatal(err)
+	}
+
+	rb := make([]byte, 1500)
+	n, peer, err := c.ReadFrom(rb)
+	if err != nil {
+		log.Fatal(err)
+	}
+	rm, err := icmp.ParseMessage(58, rb[:n])
+	if err != nil {
+		log.Fatal(err)
+	}
+	switch rm.Type {
+	case ipv6.ICMPTypeEchoReply:
+		log.Printf("got reflection from %v", peer)
+	default:
+		log.Printf("got %+v; want echo reply", rm)
+	}
+}