src: add assertion infrastructure to validate attribute types

This will be used to validate that the size is correct according
to the expected attribute size.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/src/utils.c b/src/utils.c
index 9691c4c..18917f5 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -211,3 +211,10 @@ int nft_fprintf(FILE *fp, void *obj, uint32_t type, uint32_t flags,
 
 	return ret;
 }
+
+void __nft_assert_fail(uint16_t attr, const char *filename, int line)
+{
+	fprintf(stderr, "libnftnl: attribute %d assertion failed in %s:%d\n",
+		attr, filename, line);
+	exit(EXIT_FAILURE);
+}