TT#157801 explicitly handle v4/v6 also for libwebsockets

Analogous to 12f23b311

Prerequisite for #1432

Change-Id: I204692cbaea6b5339ed392dcbd13689087391669

daemon/websocket.c

@@ -939,25 +939,35 @@ int websocket_init(void) {
 	for (char **ifp = rtpe_config.http_ifs; ifp && *ifp; ifp++) {
 		char *ifa = *ifp;
 		ilogs(http, LOG_DEBUG, "Starting HTTP/WS '%s'", ifa);
-		endpoint_t ep;
+		endpoint_t eps[2];
 		err = "Failed to parse address/port";
-		if (endpoint_parse_any_getaddrinfo(&ep, ifa))
+		if (endpoint_parse_any_getaddrinfo_alt(&eps[0], &eps[1], ifa))
 			goto err;
 
+		bool success = false;
+		for (int i = 0; i < G_N_ELEMENTS(eps); i++) {
+			endpoint_t *ep = &eps[i];
+			if (!ep->port)
+				continue;
 			struct lws_context_creation_info *vhost = g_slice_alloc(sizeof(*vhost));
 			g_queue_push_tail(&websocket_vhost_configs, vhost);
 
 			*vhost = (struct lws_context_creation_info) {
-			.port = ep.port,
+				.port = ep->port,
-			.iface = g_strdup(sockaddr_print_buf(&ep.address)),
+				.iface = g_strdup(sockaddr_print_buf(&ep->address)),
 				.protocols = websocket_protocols,
 			};
 			vhost->vhost_name = vhost->iface;
-		if (ep.address.family->af == AF_INET)
+			if (ep->address.family->af == AF_INET)
 				vhost->options |= LWS_SERVER_OPTION_DISABLE_IPV6;
 			err = "LWS failed to create vhost";
 			if (!lws_create_vhost(websocket_context, vhost))
 				goto err;
+			success = true;
+		}
+		err = "Failed to create any LWS vhost from given config";
+		if (!success)
+			goto err;
 	}
 
 	for (char **ifp = rtpe_config.https_ifs; ifp && *ifp; ifp++) {
@@ -967,17 +977,22 @@ int websocket_init(void) {
 
 		char *ifa = *ifp;
 		ilogs(http, LOG_DEBUG, "Starting HTTPS/WSS '%s'", ifa);
-		endpoint_t ep;
+		endpoint_t eps[2];
 		err = "Failed to parse address/port";
-		if (endpoint_parse_any_getaddrinfo(&ep, ifa))
+		if (endpoint_parse_any_getaddrinfo_alt(&eps[0], &eps[1], ifa))
 			goto err;
 
+		bool success = false;
+		for (int i = 0; i < G_N_ELEMENTS(eps); i++) {
+			endpoint_t *ep = &eps[i];
+			if (!ep->port)
+				continue;
 			struct lws_context_creation_info *vhost = g_slice_alloc(sizeof(*vhost));
 			g_queue_push_tail(&websocket_vhost_configs, vhost);
 
 			*vhost = (struct lws_context_creation_info) {
-			.port = ep.port,
+				.port = ep->port,
-			.iface = g_strdup(sockaddr_print_buf(&ep.address)),
+				.iface = g_strdup(sockaddr_print_buf(&ep->address)),
 				.protocols = websocket_protocols,
 				.ssl_cert_filepath = rtpe_config.https_cert,
 				.ssl_private_key_filepath = rtpe_config.https_key ? : rtpe_config.https_cert,
@@ -985,11 +1000,16 @@ int websocket_init(void) {
 				// XXX cipher list, key password
 			};
 			vhost->vhost_name = vhost->iface;
-		if (ep.address.family->af == AF_INET)
+			if (ep->address.family->af == AF_INET)
 				vhost->options |= LWS_SERVER_OPTION_DISABLE_IPV6;
 			err = "LWS failed to create vhost";
 			if (!lws_create_vhost(websocket_context, vhost))
 				goto err;
+			success = true;
+		}
+		err = "Failed to create any LWS vhost from given config";
+		if (!success)
+			goto err;
 	}
 
 	int num_threads = rtpe_config.http_threads ? : rtpe_config.num_threads;