[iptables (nft-compat) PATCH 1/5] nft: Add useful debug output when a builtin table is created

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This is useful to know if a builtin table is requested to be created.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@xxxxxxxxxxxxxxx>
---
 iptables/nft.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/iptables/nft.c b/iptables/nft.c
index fc9db99..968fe8c 100644
--- a/iptables/nft.c
+++ b/iptables/nft.c
@@ -451,6 +451,14 @@ nft_table_builtin_add(struct nft_handle *h, struct builtin_table *_t,
 	nft_table_nlmsg_build_payload(nlh, t);
 	nft_table_free(t);
 
+#ifdef NLDEBUG
+	char tmp[1024];
+
+	nft_table_snprintf(tmp, sizeof(tmp), t, 0, 0);
+	printf("DEBUG: table: %s", tmp);
+	mnl_nlmsg_fprintf(stdout, nlh, nlh->nlmsg_len, sizeof(struct nfgenmsg));
+#endif
+
 	ret = mnl_talk(h, nlh, NULL, NULL);
 	if (ret < 0) {
 		if (errno != EEXIST)
-- 
1.8.3.2

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