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-rw-r--r--src/vty/fsm_vty.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/vty/fsm_vty.c b/src/vty/fsm_vty.c
index 2947678b..8628d159 100644
--- a/src/vty/fsm_vty.c
+++ b/src/vty/fsm_vty.c
@@ -61,10 +61,14 @@ void vty_out_fsm(struct vty *vty, struct osmo_fsm *fsm)
vty_out(vty, "FSM Name: '%s', Log Subsys: '%s'%s", fsm->name,
log_category_name(fsm->log_subsys), VTY_NEWLINE);
/* list the events */
- for (evt_name = fsm->event_names; evt_name->str != NULL; evt_name++) {
- vty_out(vty, " Event %02u (0x%08x): '%s'%s", evt_name->value,
- (1 << evt_name->value), evt_name->str, VTY_NEWLINE);
- }
+ if (fsm->event_names) {
+ for (evt_name = fsm->event_names; evt_name->str != NULL; evt_name++) {
+ vty_out(vty, " Event %02u (0x%08x): '%s'%s", evt_name->value,
+ (1 << evt_name->value), evt_name->str, VTY_NEWLINE);
+ }
+ } else
+ vty_out(vty, " No event names are defined for this FSM! Please fix!%s", VTY_NEWLINE);
+
/* list the states */
vty_out(vty, " Number of States: %u%s", fsm->num_states, VTY_NEWLINE);
for (i = 0; i < fsm->num_states; i++) {