structural and NULL types are logically false.

diff --git a/src/lib/unlang/xlat_expr.c b/src/lib/unlang/xlat_expr.c
index 3b84a9cd498e7ae90d63021af63c30b9380e5e4d..5961e9b3b5e5675da1c321ee205e0be4d3b66747 100644 (file)
--- a/src/lib/unlang/xlat_expr.c
+++ b/src/lib/unlang/xlat_expr.c
@@ -338,6 +338,11 @@ static void cast_to_bool(bool *out, fr_value_box_t const *in)
        fr_value_box_t box;
 
        switch (in->type) {
+       case FR_TYPE_NULL:
+       case FR_TYPE_STRUCTURAL:
+               *out = false;
+               break;
+
        case FR_TYPE_BOOL:
                *out = in->vb_bool;
                break;