Added windows support

exit_unix.go

@@ -0,0 +1,12 @@
+// +build linux darwin
+
+package main
+
+import (
+	"syscall"
+	"os"
+)
+
+func exit() {
+	syscall.Kill(syscall.Getpid(), syscall.SIGINT)
+}

exit_windows.go

@@ -0,0 +1,9 @@
+// +build windows
+
+package main
+
+import "os"
+
+func exit() {
+	os.Exit(0)
+}

main.go

@@ -9,7 +9,6 @@ import (
 	"net"
 	"os"
 	"os/signal"
-	"syscall"
 	"time"
 
 	_ "image/gif"
@@ -84,7 +83,7 @@ func fill(ch chan<- *net.IPAddr, frames [][]*net.IPAddr, delay []time.Duration,
 					for 0 != len(ch) {
 						time.Sleep(1 * time.Second)
 					}
-					syscall.Kill(syscall.Getpid(), syscall.SIGINT)
+					exit()
 					return
 				}
 				// then wait on both