Move auxiliary methods to "nettools". Run gofmt

addresses.go

@@ -1,23 +0,0 @@
-package bencode
-
-import "fmt"
-
-// These are not strictly bencode features, but often needed by both DHT and
-// Torrent clients.
-
-func BinaryToDottedPort(port string) string {
-	return fmt.Sprintf("%d.%d.%d.%d:%d", port[0], port[1], port[2], port[3],
-		(uint16(port[4])<<8)|uint16(port[5]))
-}
-
-// 97.98.99.100:25958 becames "abcdef".
-func DottedPortToBinary(b string) string {
-	a := make([]byte, 6, 6)
-	var c uint16
-
-	fmt.Sscanf(b, "%d.%d.%d.%d:%d", &a[0], &a[1], &a[2], &a[3], &c)
-	a[4] = uint8(c >> 8)
-	a[5] = uint8(c)
-
-	return string(a)
-}