freetdm: Removed unnecessary parameter copy

	 Added ftdm_raw_data_t

libs/freetdm/src/ftdm_io.c

@@ -4049,7 +4049,7 @@ done:
 	return status;
 }
 
-FT_DECLARE(ftdm_iterator_t) *get_iterator(ftdm_iterator_type_t type, ftdm_iterator_t *iter)
+FT_DECLARE(ftdm_iterator_t) *ftdm_get_iterator(ftdm_iterator_type_t type, ftdm_iterator_t *iter)
 {
 	int allocated = 0;
 	if (iter) {
@@ -4075,7 +4075,7 @@ FT_DECLARE(ftdm_iterator_t) *get_iterator(ftdm_iterator_type_t type, ftdm_iterat
 
 FT_DECLARE(ftdm_iterator_t *) ftdm_span_get_chan_iterator(const ftdm_span_t *span, ftdm_iterator_t *iter)
 {
-	if (!(iter = get_iterator(FTDM_ITERATOR_CHANS, iter))) {
+	if (!(iter = ftdm_get_iterator(FTDM_ITERATOR_CHANS, iter))) {
 		return NULL;
 	}
 	iter->pvt.chaniter.index = 1;
@@ -6100,9 +6100,6 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_save_usrmsg(ftdm_channel_t *ftdmchan, ftd
 		memcpy(ftdmchan->usrmsg, usrmsg, sizeof(ftdm_usrmsg_t));
 		
 		if (usrmsg->raw.data) {
-			ftdmchan->usrmsg->raw.data = usrmsg->raw.data;
-			ftdmchan->usrmsg->raw.len = usrmsg->raw.len;
-
 			usrmsg->raw.data = NULL;
 			usrmsg->raw.len = 0;
 		}

libs/freetdm/src/ftdm_variables.c

@@ -92,7 +92,7 @@ FT_DECLARE(ftdm_iterator_t *) ftdm_sigmsg_get_var_iterator(const ftdm_sigmsg_t *
 		return NULL;
 	}
 	
-	if (!(iter = get_iterator(FTDM_ITERATOR_VARS, iter))) {
+	if (!(iter = ftdm_get_iterator(FTDM_ITERATOR_VARS, iter))) {
 		return NULL;
 	}
 	iter->pvt.hashiter = hashiter;

libs/freetdm/src/include/freetdm.h

@@ -550,6 +550,11 @@ typedef struct {
 
 typedef void * ftdm_variable_container_t;
 
+typedef struct {
+	ftdm_size_t len;
+	void *data;
+} ftdm_raw_data_t;
+
 /*! \brief Generic signaling message received from the stack */
 struct ftdm_sigmsg {
 	ftdm_signal_event_t event_id; /*!< The type of message */
@@ -565,20 +570,13 @@ struct ftdm_sigmsg {
 		ftdm_event_collected_t collected; /*!< valid if event_id is FTDM_SIGEVENT_COLLECTED_DIGIT */
 		ftdm_event_indication_completed_t indication_completed; /*!< valid if the event_id is FTDM_SIGEVENT_INDICATION_COMPLETED */
 	} ev_data;
-	struct {
-		ftdm_size_t len; /*!< Data len */
-		void *data; /*!< Signaling module specific data */
-	} raw;
+	ftdm_raw_data_t raw;
 };
 
 /*! \brief Generic user message sent to the stack */
 struct ftdm_usrmsg {
-	uint32_t call_id; /*!< unique call id for this call */
 	ftdm_variable_container_t variables;
-	struct {
-		ftdm_size_t len; /*!< Data len */
-		void *data; /*!< Signaling module specific data */
-	} raw;
+	ftdm_raw_data_t raw;
 };
 
 /*! \brief Crash policy 

libs/freetdm/src/include/private/ftdm_core.h

@@ -590,7 +590,7 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_open_chan(ftdm_channel_t *ftdmchan);
 FT_DECLARE(void) ftdm_ack_indication(ftdm_channel_t *ftdmchan, ftdm_channel_indication_t indication, ftdm_status_t status);
 
 
-FT_DECLARE(ftdm_iterator_t) *get_iterator(ftdm_iterator_type_t type, ftdm_iterator_t *iter);
+FT_DECLARE(ftdm_iterator_t) *ftdm_get_iterator(ftdm_iterator_type_t type, ftdm_iterator_t *iter);
 
 
 /*!