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-rw-r--r--include/libnfnetlink/libnfnetlink.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/libnfnetlink/libnfnetlink.h b/include/libnfnetlink/libnfnetlink.h
index f3e4749..d789418 100644
--- a/include/libnfnetlink/libnfnetlink.h
+++ b/include/libnfnetlink/libnfnetlink.h
@@ -97,6 +97,9 @@ extern struct nlmsghdr *nfnl_get_msg_next(struct nfnl_handle *h,
const unsigned char *buf,
size_t len);
+#define nfnl_attr_present(tb, attr) \
+ (tb[attr-1])
+
#define nfnl_get_data(tb, attr, type) \
({ type __ret = 0; \
if (tb[attr-1]) \