patch 9.2.0317: listener functions do not check secure flag

Problem:  listener functions do not check secure flag
          (syndicate)
Solution: Call check_secure()

Signed-off-by: Christian Brabandt <[email protected]>

Author: chrisbra

src/change.c

@@ -321,6 +321,9 @@ f_listener_add(typval_T *argvars, typval_T *rettv)
     buf_T	*buf = curbuf;
     int		unbuffered = 0;
 
+    if (check_secure())
+	return;
+
     if (recursive)
     {
 	emsg(_(e_cannot_add_listener_in_listener_callback));
@@ -386,6 +389,9 @@ f_listener_flush(typval_T *argvars, typval_T *rettv UNUSED)
 {
     buf_T	*buf = curbuf;
 
+    if (check_secure())
+	return;
+
     if (recursive)
 	return;
 
@@ -439,6 +445,9 @@ f_listener_remove(typval_T *argvars, typval_T *rettv)
     int		id;
     buf_T	*buf;
 
+    if (check_secure())
+	return;
+
     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)
 	return;
 

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    317,
 /**/
     316,
 /**/