vendor: Add github.com/godbus/dbus

Signed-off-by: Michal Rostecki <mrostecki@suse.com>

vendor/github.com/godbus/dbus/transport_tcp.go

@@ -0,0 +1,43 @@
+//+build !windows
+
+package dbus
+
+import (
+	"errors"
+	"net"
+)
+
+func init() {
+	transports["tcp"] = newTcpTransport
+}
+
+func tcpFamily(keys string) (string, error) {
+	switch getKey(keys, "family") {
+	case "":
+		return "tcp", nil
+	case "ipv4":
+		return "tcp4", nil
+	case "ipv6":
+		return "tcp6", nil
+	default:
+		return "", errors.New("dbus: invalid tcp family (must be ipv4 or ipv6)")
+	}
+}
+
+func newTcpTransport(keys string) (transport, error) {
+	host := getKey(keys, "host")
+	port := getKey(keys, "port")
+	if host == "" || port == "" {
+		return nil, errors.New("dbus: unsupported address (must set host and port)")
+	}
+
+	protocol, err := tcpFamily(keys)
+	if err != nil {
+		return nil, err
+	}
+	socket, err := net.Dial(protocol, net.JoinHostPort(host, port))
+	if err != nil {
+		return nil, err
+	}
+	return NewConn(socket)
+}