channledb/codec: add net.Addr and []net.Addr to codec

channeldb/codec.go

@@ -4,6 +4,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"io"
+	"net"
 
 	"github.com/lightningnetwork/lnd/keychain"
 	"github.com/lightningnetwork/lnd/lnwire"
@@ -176,6 +177,22 @@ func WriteElement(w io.Writer, element interface{}) error {
 			return err
 		}
 
+	case net.Addr:
+		if err := serializeAddr(w, e); err != nil {
+			return err
+		}
+
+	case []net.Addr:
+		if err := WriteElement(w, uint32(len(e))); err != nil {
+			return err
+		}
+
+		for _, addr := range e {
+			if err := serializeAddr(w, addr); err != nil {
+				return err
+			}
+		}
+
 	default:
 		return UnknownElementType{"WriteElement", e}
 	}
@@ -355,6 +372,28 @@ func ReadElement(r io.Reader, element interface{}) error {
 			return err
 		}
 
+	case *net.Addr:
+		addr, err := deserializeAddr(r)
+		if err != nil {
+			return err
+		}
+		*e = addr
+
+	case *[]net.Addr:
+		var numAddrs uint32
+		if err := ReadElement(r, &numAddrs); err != nil {
+			return err
+		}
+
+		*e = make([]net.Addr, numAddrs)
+		for i := uint32(0); i < numAddrs; i++ {
+			addr, err := deserializeAddr(r)
+			if err != nil {
+				return err
+			}
+			(*e)[i] = addr
+		}
+
 	default:
 		return UnknownElementType{"ReadElement", e}
 	}