ui/ncurses: clear DNS server setting before appending new servers

[petitboot] / ui / ncurses / nc-config.c

diff --git a/ui/ncurses/nc-config.c b/ui/ncurses/nc-config.c
index 8d68e7446499e700a16122c6726da68d6171ac98..f4fa073308e88c3246f30bd5357b433173bac05c 100644 (file)
--- a/ui/ncurses/nc-config.c
+++ b/ui/ncurses/nc-config.c
@@ -118,10 +118,23 @@ static void config_screen_process_key(struct nc_scr *scr, int key)
        bool handled;
 
        handled = widgetset_process_key(screen->widgetset, key);
+
+       if (!handled) {
+               switch (key) {
+               case 'x':
+               case 27: /* esc */
+                       screen->exit = true;
+                       break;
+               case 'h':
+                       screen->show_help = true;
+                       break;
+               }
+       }
+
        if (screen->exit) {
                screen->on_exit(screen->cui);
 
-       } else if (screen->show_help || (!handled && key == 'h')) {
+       } else if (screen->show_help) {
                screen->show_help = false;
                cui_show_help(screen->cui, "System Configuration",
                                config_help_text);
@@ -236,6 +249,10 @@ static int screen_process_form(struct config_screen *screen)
        }
 
        str = widget_textbox_get_value(screen->widgets.dns_f);
+       talloc_free(config->network.dns_servers);
+       config->network.dns_servers = NULL;
+       config->network.n_dns_servers = 0;
+
        if (str && strlen(str)) {
                char *dns, *tmp;
                int i;
@@ -689,7 +706,7 @@ struct config_screen *config_screen_init(struct cui *cui,
                        "Petitboot System Configuration");
        screen->scr.frame.rtitle = NULL;
        screen->scr.frame.help = talloc_strdup(screen,
-                       "tab=next, shift+tab=previous");
+                       "tab=next, shift+tab=previous, x=exit, h=help");
        nc_scr_frame_draw(&screen->scr);
 
        scrollok(screen->scr.sub_ncw, true);