protect the innocent

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@556 a93c3328-9c30-0410-af19-c9cd2b2d52af

diff --git a/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c b/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c
index a17d70e85ca1ff5072470a766ea2972285d374c8..f6b0c75df7fef868a10eff8d84ff5b7a5bafbdbb 100644 (file)
--- a/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c
+++ b/libs/openzap/src/ozmod/ozmod_analog/ozmod_analog.c
@@ -719,6 +719,11 @@ static __inline__ zap_status_t process_event(zap_span_t *span, zap_event_t *even
        switch(event->enum_id) {
        case ZAP_OOB_RING_START:
                {
+                       if (event->channel->type != ZAP_CHAN_TYPE_FXO) {
+                               zap_log(ZAP_LOG_ERROR, "Cannot get a RING_START event on a non-fxo channel, please check your config.\n");
+                               zap_set_state_locked(event->channel, ZAP_CHANNEL_STATE_DOWN);
+                               goto end;
+                       }
                        if (!event->channel->ring_count && (event->channel->state == ZAP_CHANNEL_STATE_DOWN && !zap_test_flag(event->channel, ZAP_CHANNEL_INTHREAD))) {
                                zap_set_state_locked(event->channel, ZAP_CHANNEL_STATE_GET_CALLERID);
                                event->channel->ring_count = 1;
@@ -785,6 +790,9 @@ static __inline__ zap_status_t process_event(zap_span_t *span, zap_event_t *even
                        }
                }
        }
+
+ end:
+
        if (locked) {
                zap_mutex_unlock(event->channel->mutex);
        }