jansson: Add helper function for building the tree and use it

Add a helper function that parses and returns the jansson
tree, use it in the table parser.

Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 3 insertions, 11 deletions

diff --git a/src/table.c b/src/table.c
index 1f4fe76..526f3e7 100644
--- a/src/table.c
+++ b/src/table.c
@@ -290,17 +290,9 @@ static int nft_table_json_parse(struct nft_table *t, char *json)
 	const char *str;
 	int family;
 
-	root = json_loadb(json, strlen(json), 0, &error);
-	if (!root) {
-		errno = EINVAL;
-		goto err;
-	}
-
-	root = json_object_get(root, "table");
-	if (root == NULL) {
-		errno = EINVAL;
-		goto err;
-	}
+	root = nft_jansson_get_root(json, "table", &error);
+	if (root == NULL)
+		return -1;
 
 	str = nft_jansson_value_parse_str(root, "name");
 	if (str == NULL)