netdomjoin-gui: before prompting for creds (for receiving joinable ous), find a dc.

Guenther
(This used to be commit ae60695a349bccd1128e6c439664b0607627ef23)

1 files changed, 31 insertions, 1 deletions

diff --git a/source3/lib/netapi/examples/netdomjoin-gui/netdomjoin-gui.c b/source3/lib/netapi/examples/netdomjoin-gui/netdomjoin-gui.c
index a11b0eb0a40..df8193707cb 100644
--- a/source3/lib/netapi/examples/netdomjoin-gui/netdomjoin-gui.c
+++ b/source3/lib/netapi/examples/netdomjoin-gui/netdomjoin-gui.c
@@ -932,6 +932,9 @@ static void callback_do_getous(GtkWidget *widget,
 	const char **ous = NULL;
 	int i;
 	const char *domain = NULL;
+	struct DOMAIN_CONTROLLER_INFO *dc_info = NULL;
+	const char *err_str = NULL;
+	GtkWidget *dialog;
 
 	struct join_state *state = (struct join_state *)data;
 
@@ -939,6 +942,34 @@ static void callback_do_getous(GtkWidget *widget,
 
 	domain = state->name_buffer_new ? state->name_buffer_new : state->name_buffer_initial;
 
+	status = DsGetDcName(NULL,
+			     domain,
+			     NULL,
+			     NULL,
+			     0,
+			     &dc_info);
+	if (status != 0) {
+		err_str = libnetapi_get_error_string(state->ctx, status);
+		g_print("callback_do_getous: failed find dc (%s)\n", err_str);
+
+		dialog = gtk_message_dialog_new(GTK_WINDOW(state->window_parent),
+						GTK_DIALOG_DESTROY_WITH_PARENT,
+						GTK_MESSAGE_ERROR,
+						GTK_BUTTONS_CLOSE,
+						"Failed to find a domain controller for domain: \"%s\": %s",
+						domain,
+						err_str);
+
+		gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
+		g_signal_connect_swapped(dialog, "response",
+					 G_CALLBACK(gtk_widget_destroy),
+					 dialog);
+
+		gtk_widget_show(dialog);
+
+		return;
+	}
+
 	if (!state->account || !state->password) {
 		debug("callback_do_getous: no creds yet\n");
 		callback_creds_prompt(NULL, state,
@@ -956,7 +987,6 @@ static void callback_do_getous(GtkWidget *widget,
 				   state->password,
 				   &num_ous, &ous);
 	if (status != NET_API_STATUS_SUCCESS) {
-		GtkWidget *dialog;
 		callback_do_freeauth(NULL, state);
 		debug("failed to call NetGetJoinableOUs: %s\n",
 			libnetapi_get_error_string(state->ctx, status));