// DialArgs is a convenience function returning arguments for use in net.Dial
func DialArgs(m ma.Multiaddr) (string, string, error) {
if !IsThinWaist(m) {
return "", "", fmt.Errorf("%s is not a 'thin waist' address", m)
}
str := m.String()
parts := strings.Split(str, "/")[1:]
if len(parts) == 2 { // only IP
return parts[0], parts[1], nil
}
network := parts[2]
if parts[2] == "udp" && len(parts) > 4 && parts[4] == "utp" {
network = parts[4]
}
var host string
switch parts[0] {
case "ip4":
network = network + "4"
host = strings.Join([]string{parts[1], parts[3]}, ":")
case "ip6":
network = network + "6"
host = fmt.Sprintf("[%s]:%s", parts[1], parts[3])
}
return network, host, nil
}
func outfmt(m ma.Multiaddr) string {
switch format {
case "string":
return m.String()
case "slice":
return fmt.Sprintf("%v", m.Bytes())
case "bytes":
return string(m.Bytes())
case "hex":
return "0x" + hex.EncodeToString(m.Bytes())
}
die("error: invalid format", format)
return ""
}
// Dial metadata is metadata for dial events
func Dial(sys string, lid, rid peer.ID, laddr, raddr ma.Multiaddr) DeferredMap {
m := DeferredMap{}
m["subsystem"] = sys
if lid != "" {
m["localPeer"] = func() interface{} { return lid.Pretty() }
}
if laddr != nil {
m["localAddr"] = func() interface{} { return laddr.String() }
}
if rid != "" {
m["remotePeer"] = func() interface{} { return rid.Pretty() }
}
if raddr != nil {
m["remoteAddr"] = func() interface{} { return raddr.String() }
}
return m
}