Add two new dialplan variables when using features

Added DYNAMIC_FEATURENAME which holds the last triggered dynamic feature.
Added DYNAMIC_PEERNAME which holds the unique channel name on the other side
and is set when a dynamic feature is triggered.

(closes issue #14663)
Reported by: tamiel
Patches:
      20090313_features.diff uploaded by tamiel (license 712)
Tested by: tamiel


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@214309 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -94,6 +94,12 @@ Dialplan Functions
      voice - voice mode (returns from FAX mode, reverting the changes that
              were made when FAX mode was requested)
 
+Dialplan Variables
+------------------
+ * Added DYNAMIC_FEATURENAME which holds the last triggered dynamic feature.
+ * Added DYNAMIC_PEERNAME which holds the unique channel name on the other side
+   and is set when a dynamic feature is triggered.
+
 Queue changes
 -------------
   * A new option, 'I' has been added to both app_queue and app_dial.

main/features.c

@@ -2074,6 +2074,13 @@ static int feature_exec_app(struct ast_channel *chan, struct ast_channel *peer,
 
 	ast_autoservice_start(idle);
 	
+	if(work && idle) {
+		pbx_builtin_setvar_helper(work, "DYNAMIC_PEERNAME", idle->name);
+		pbx_builtin_setvar_helper(idle, "DYNAMIC_PEERNAME", work->name);
+		pbx_builtin_setvar_helper(work, "DYNAMIC_FEATURENAME", feature->sname);
+		pbx_builtin_setvar_helper(idle, "DYNAMIC_FEATURENAME", feature->sname);
+	}
+
 	if (!ast_strlen_zero(feature->moh_class))
 		ast_moh_start(idle, feature->moh_class, NULL);