Bug fix dynamic menus

Dynamic menus had a buffer_len variable in the parent function but it
was discarded before passing to the callbacks

Why!!?? No clue but everything that used it was assuming MAXPATH
Wouldn't be surprised to see some bugs pop out from this one..

init_menu_lists() was assuming MENU_HAS_DESC and setting the
menu title + icon based on such even though it could be invalid
didn't see anywhere in the code that was currently using MENU_DYNAMIC_DESC
in relation to a top level menu but considering it caused all kinds
of corruption to the menu when I tried its probably been tried
and abandoned before...

Change-Id: I8d961d748918bfa8ea6adb5ad60491af4d739d6e

apps/menu.c

@@ -104,13 +104,12 @@ static const char* get_menu_item_name(int selected_item,
     int type = (menu->flags&MENU_TYPE_MASK);
     selected_item = get_menu_selection(selected_item, menu);
 
-    (void)buffer_len;
     /* only MT_MENU or MT_RETURN_ID is allowed in here */
     if (type == MT_RETURN_ID)
     {
         if (menu->flags&MENU_DYNAMIC_DESC)
             return menu->menu_get_name_and_icon->list_get_name(selected_item,
-                    menu->menu_get_name_and_icon->list_get_name_data, buffer);
+            menu->menu_get_name_and_icon->list_get_name_data, buffer, buffer_len);
         return menu->strings[selected_item];
     }
 
@@ -118,7 +117,7 @@ static const char* get_menu_item_name(int selected_item,
 
     if ((menu->flags&MENU_DYNAMIC_DESC) && (type != MT_SETTING_W_TEXT))
         return menu->menu_get_name_and_icon->list_get_name(selected_item,
-                    menu->menu_get_name_and_icon->list_get_name_data, buffer);
+            menu->menu_get_name_and_icon->list_get_name_data, buffer, buffer_len);
 
     type = (menu->flags&MENU_TYPE_MASK);
     if ((type == MT_SETTING) || (type == MT_SETTING_W_TEXT))
@@ -177,6 +176,7 @@ static void init_menu_lists(const struct menu_item_ex *menu,
     int type = (menu->flags&MENU_TYPE_MASK);
     menu_callback_type menu_callback = NULL;
     int icon;
+    char * title;
     current_subitems_count = 0;
 
     if (type == MT_RETURN_ID)
@@ -206,14 +206,33 @@ static void init_menu_lists(const struct menu_item_ex *menu,
 
     gui_synclist_init(lists,get_menu_item_name,(void*)menu,false,1, parent);
 #ifdef HAVE_LCD_BITMAP
-    if (menu->callback_and_desc->icon_id == Icon_NOICON)
+
-        icon = Icon_Submenu_Entered;
+    if (menu->flags&MENU_HAS_DESC)
-    else
+    {
         icon = menu->callback_and_desc->icon_id;
-    gui_synclist_set_title(lists, P2STR(menu->callback_and_desc->desc), icon);
+        title = P2STR(menu->callback_and_desc->desc);
+    }
+    else if (menu->flags&MENU_DYNAMIC_DESC)
+    {
+        char buffer[80];
+        icon = menu->menu_get_name_and_icon->icon_id;
+        title = menu->menu_get_name_and_icon->
+                      list_get_name(-1, menu->menu_get_name_and_icon->
+                                    list_get_name_data, buffer, sizeof(buffer));
+    }
+    else
+    {
+        icon = Icon_NOICON;
+        title = "";
+    }
+
+    if (icon == Icon_NOICON)
+            icon = Icon_Submenu_Entered;
+    gui_synclist_set_title(lists, title, icon);
     gui_synclist_set_icon_callback(lists, global_settings.show_icons?menu_get_icon:NULL);
 #else
     (void)icon;
+    (void)title;
     gui_synclist_set_icon_callback(lists, NULL);
 #endif
     if(global_settings.talk_menu)
@@ -256,8 +275,8 @@ static int talk_menu_item(int selected_item, void *data)
                         char buffer[80];
                         str = menu->submenus[sel]->menu_get_name_and_icon->
                             list_get_name(sel, menu->submenus[sel]->
-                                          menu_get_name_and_icon->
+                                    menu_get_name_and_icon->
-                                          list_get_name_data, buffer);
+                                    list_get_name_data, buffer, sizeof(buffer));
                         id = P2ID(str);
                     }
                 }

apps/menu.h

@@ -91,7 +91,8 @@ struct menu_item_ex {
         const struct menu_get_name_and_icon {
             int (*menu_callback)(int action, 
                                  const struct menu_item_ex *this_item);
-            char *(*list_get_name)(int selected_item, void * data, char *buffer);
+            char *(*list_get_name)(int selected_item, void * data,
+                                   char *buffer, size_t buffer_len);
             int (*list_speak_item)(int selected_item, void * data);
             void *list_get_name_data;
             int icon_id;

apps/menus/audiohw_eq_menu.c

@@ -41,9 +41,10 @@ static unsigned short hw_eq_setting_lang_ids[AUDIOHW_EQ_SETTING_NUM] =
 #endif
 };
 
-static char * hw_eq_get_name(int selected_item, void * data, char *buffer)
+static char * hw_eq_get_name(int selected_item, void * data,
+                             char *buffer, size_t buffer_len)
 {
-    snprintf(buffer, MAX_PATH,
+    snprintf(buffer, buffer_len,
              str(hw_eq_setting_lang_ids[HW_EQ_IDX_SETTING(data)]),
              HW_EQ_IDX_BAND(data) + 1);
     return buffer;

apps/menus/radio_menu.c

@@ -100,11 +100,12 @@ MENUITEM_SETTING(force_mono, &global_settings.fm_force_mono, NULL);
 
 #ifndef FM_MODE
 extern int radio_mode;
-static char* get_mode_text(int selected_item, void * data, char *buffer)
+static char* get_mode_text(int selected_item, void * data,
+                           char *buffer, size_t buffer_len)
 {
     (void)selected_item;
     (void)data;
-    snprintf(buffer, MAX_PATH, "%s %s", str(LANG_MODE),
+    snprintf(buffer, buffer_len, "%s %s", str(LANG_MODE),
              radio_mode ? str(LANG_PRESET) :
                           str(LANG_RADIO_SCAN_MODE));
     return buffer;

apps/menus/settings_menu.c

@@ -500,14 +500,15 @@ static int seconds_to_min(int secs)
 
 /* A string representation of either whether a sleep timer will be started or
    canceled, and how long it will be or how long is remaining in brackets */
-static char* sleep_timer_getname(int selected_item, void * data, char *buffer)
+static char* sleep_timer_getname(int selected_item, void * data,
+                                 char *buffer, size_t buffer_len)
 {
     (void)selected_item;
     (void)data;
     int sec = get_sleep_timer();
     char timer_buf[10];
-    /* we have no sprintf, so MAX_PATH is a guess */
+
-    snprintf(buffer, MAX_PATH, "%s (%s)",
+    snprintf(buffer, buffer_len, "%s (%s)",
              str(sec ? LANG_SLEEP_TIMER_CANCEL_CURRENT
                  : LANG_SLEEP_TIMER_START_CURRENT),
              sleep_timer_formatter(timer_buf, sizeof(timer_buf),

apps/root_menu.c

@@ -454,9 +454,10 @@ MENUITEM_RETURNVALUE(rocks_browser, ID2P(LANG_PLUGINS), GO_TO_BROWSEPLUGINS,
 MENUITEM_RETURNVALUE(playlist_browser, ID2P(LANG_CATALOG), GO_TO_PLAYLIST_VIEWER,
                         NULL, Icon_Playlist);
 
-static char *get_wps_item_name(int selected_item, void * data, char *buffer)
+static char *get_wps_item_name(int selected_item, void * data,
+                               char *buffer, size_t buffer_len)
 {
-    (void)selected_item; (void)data; (void)buffer;
+    (void)selected_item; (void)data; (void)buffer; (void)buffer_len;
     if (audio_status())
         return ID2P(LANG_NOW_PLAYING);
     return ID2P(LANG_RESUME_PLAYBACK);