feat: Waku v2 bridge

Issue #12610

vendor/github.com/anacrolix/missinggo/v2/addr.go

@@ -0,0 +1,44 @@
+package missinggo
+
+import (
+	"net"
+	"strconv"
+)
+
+// Extracts the port as an integer from an address string.
+func AddrPort(addr net.Addr) int {
+	switch raw := addr.(type) {
+	case *net.UDPAddr:
+		return raw.Port
+	case *net.TCPAddr:
+		return raw.Port
+	default:
+		_, port, err := net.SplitHostPort(addr.String())
+		if err != nil {
+			panic(err)
+		}
+		i64, err := strconv.ParseInt(port, 0, 0)
+		if err != nil {
+			panic(err)
+		}
+		return int(i64)
+	}
+}
+
+func AddrIP(addr net.Addr) net.IP {
+	if addr == nil {
+		return nil
+	}
+	switch raw := addr.(type) {
+	case *net.UDPAddr:
+		return raw.IP
+	case *net.TCPAddr:
+		return raw.IP
+	default:
+		host, _, err := net.SplitHostPort(addr.String())
+		if err != nil {
+			panic(err)
+		}
+		return net.ParseIP(host)
+	}
+}