prefutils: Add convenience function

This is a convenience function for allowing multiple
key/values to be saved to the preference system, without
having to reference pref_t or the real underlying value.

It is used by the extcap save functionality, to store the
saved values

Change-Id: I1c8bf787db8ed2d17628024ec1cd19073e49d017
Reviewed-on: https://code.wireshark.org/review/13471
Petri-Dish: Roland Knall <rknall@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>

1 files changed, 45 insertions, 2 deletions

diff --git a/ui/preference_utils.c b/ui/preference_utils.c
index 95abc5c03b..ca0a70c7a3 100644
--- a/ui/preference_utils.c
+++ b/ui/preference_utils.c
@@ -273,8 +273,8 @@ prefs_main_write(void)
   }
 }
 
-gboolean
-prefs_store_ext(const char * module_name, const char *pref_name, const char *pref_value)
+static gboolean
+prefs_store_ext_helper(const char * module_name, const char *pref_name, const char *pref_value)
 {
   module_t * module = NULL;
   pref_t * pref = NULL;
@@ -305,6 +305,49 @@ prefs_store_ext(const char * module_name, const char *pref_name, const char *pre
     }
   }
 
+  return pref_changed;
+}
+
+gboolean
+prefs_store_ext(const char * module_name, const char *pref_name, const char *pref_value)
+{
+  if ( prefs_store_ext_helper(module_name, pref_name, pref_value) )
+  {
+    prefs_main_write();
+    prefs_apply_all();
+    prefs_to_capture_opts();
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+gboolean
+prefs_store_ext_multiple(const char * module, GHashTable * pref_values)
+{
+  gboolean pref_changed = FALSE;
+  GList * keys = NULL;
+
+  if ( ! prefs_is_registered_protocol(module))
+    return pref_changed;
+
+  keys = g_hash_table_get_keys(pref_values);
+  if ( ! keys )
+    return pref_changed;
+
+  while ( keys != NULL )
+  {
+    gchar * pref_name = (gchar *)keys->data;
+    gchar * pref_value = (gchar *) g_hash_table_lookup(pref_values, keys->data);
+
+    if ( pref_name && pref_value )
+    {
+      if ( prefs_store_ext_helper(module, pref_name, pref_value) )
+        pref_changed = TRUE;
+    }
+    keys = g_list_next(keys);
+  }
+
   if ( pref_changed )
   {
     prefs_main_write();