# nft describe foo
datatype foo is invalid
Fixes: 21cbab5b6ffe ("expression: extend 'nft describe' to allow listing data types")
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
src/expression.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/expression.c b/src/expression.c
index 7ae075d23ee3..c91333631ad0 100644
--- a/src/expression.c
+++ b/src/expression.c
@@ -135,9 +135,12 @@ void expr_describe(const struct expr *expr, struct output_ctx *octx)
nft_print(octx, "datatype %s (%s)",
dtype->name, dtype->desc);
len = dtype->size;
- } else {
+ } else if (dtype != &invalid_type) {
nft_print(octx, "%s expression, datatype %s (%s)",
expr_name(expr), dtype->name, dtype->desc);
+ } else {
+ nft_print(octx, "datatype %s is invalid\n", expr->identifier);
+ return;
}
if (dtype->basetype != NULL) {
--
2.20.1
