diff --git a/include/proto/stream_sock.h b/include/proto/stream_sock.h
index e5d4f51..9e1bc3f 100644
--- a/include/proto/stream_sock.h
+++ b/include/proto/stream_sock.h
@@ -58,6 +58,50 @@
 }
 
 
+/*
+ * Retrieves the original destination address for the stream interface. On the
+ * client side, if the original destination address was translated, the original
+ * address is retrieved.
+ */
+static inline void stream_sock_get_to_addr(struct stream_interface *si)
+{
+	socklen_t namelen;
+
+	if (si->flags & SI_FL_TO_SET)
+		return;
+
+	namelen = sizeof(si->addr.to);
+
+#if defined(TPROXY) && defined(SO_ORIGINAL_DST)
+	if (getsockopt(si->fd, SOL_IP, SO_ORIGINAL_DST, (struct sockaddr *)&si->addr.to, &namelen) != -1) {
+		si->flags |= SI_FL_TO_SET;
+		return;
+	}
+#endif
+	if (si->get_dst &&
+	    si->get_dst(si->fd, (struct sockaddr *)&si->addr.to, &namelen) != -1)
+		si->flags |= SI_FL_TO_SET;
+	return;
+}
+
+/*
+ * Retrieves the source address for the stream interface.
+ */
+static inline void stream_sock_get_from_addr(struct stream_interface *si)
+{
+	socklen_t namelen;
+
+	if (si->flags & SI_FL_FROM_SET)
+		return;
+
+	namelen = sizeof(si->addr.to);
+	if (si->get_src &&
+	    si->get_src(si->fd, (struct sockaddr *)&si->addr.from, &namelen) != -1)
+		si->flags |= SI_FL_FROM_SET;
+	return;
+}
+
+
 #endif /* _PROTO_STREAM_SOCK_H */
 
 /*