src: introduce simple hints on incorrect table

This patch adds simple infrastructure to provide a hints to user on
references to incorrect table. While at it, remove "Could not process
rule:" which I think it is implicit in the error.

 # nft rule x y ip saddr @y
 Error: No such file or directory; did you mean table ‘x’ in family inet?

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/rule.c b/src/rule.c
index 524db41e..3553b43d 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -1103,6 +1103,18 @@ struct table *table_lookup(const struct handle *h,
 	return NULL;
 }
 
+struct table *table_lookup_fuzzy(const struct handle *h,
+				 const struct nft_cache *cache)
+{
+	struct table *table;
+
+	list_for_each_entry(table, &cache->list, list) {
+		if (!strcmp(table->handle.table.name, h->table.name))
+			return table;
+	}
+	return NULL;
+}
+
 const char *table_flags_name[TABLE_FLAGS_MAX] = {
 	"dormant",
 };