move the thing that passes proto_specific_hangup_cause to the core and prefix it…

move the thing that passes proto_specific_hangup_cause to the core and prefix it with last_bridge_ and also log last_bridge_hangup_cauuse for good measure

src/mod/endpoints/mod_sofia/sofia.c

@@ -545,7 +545,6 @@ void sofia_handle_sip_i_bye(switch_core_session_t *session, int status,
 	switch_snprintf(st, sizeof(st), "%d", status);
 	switch_channel_set_variable(channel, "sip_term_status", st);
 	switch_snprintf(st, sizeof(st), "sip:%d", status);
-	switch_channel_set_variable_partner(channel, SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE, st);
 	switch_channel_set_variable(channel, SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE, st);
 
 	if (phrase) {
@@ -6027,7 +6026,6 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 				switch_snprintf(st, sizeof(st), "%d", status);
 				switch_channel_set_variable(channel, "sip_term_status", st);
 				switch_snprintf(st, sizeof(st), "sip:%d", status);
-				switch_channel_set_variable_partner(channel, SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE, st);
 				switch_channel_set_variable(channel, SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE, st);
 				if (phrase) {
 					switch_channel_set_variable_partner(channel, "sip_hangup_phrase", phrase);

src/switch_channel.c

@@ -2811,6 +2811,7 @@ SWITCH_DECLARE(switch_channel_state_t) switch_channel_perform_hangup(switch_chan
 	if (channel->state < CS_HANGUP) {
 		switch_channel_state_t last_state;
 		switch_event_t *event;
+		const char *var;
 
 		switch_mutex_lock(channel->state_mutex);
 		last_state = channel->state;
@@ -2829,6 +2830,14 @@ SWITCH_DECLARE(switch_channel_state_t) switch_channel_perform_hangup(switch_chan
 						  channel->name, state_names[last_state], switch_channel_cause2str(channel->hangup_cause));
 
 
+		switch_channel_set_variable_partner(channel, "last_bridge_hangup_cause", switch_channel_cause2str(hangup_cause));
+
+		if ((var = switch_channel_get_variable(channel, SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE))) {
+			printf("WTF %s\n", var);
+			switch_channel_set_variable_partner(channel, "last_bridge_" SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE, var);
+		}
+
+
 		if (!switch_core_session_running(channel->session) && !switch_core_session_started(channel->session)) {
 			switch_core_session_thread_launch(channel->session);
 		}