nfnl: add nfnl_portid() to get the Netlink portID of a socket

This patch adds the new interface nfnl_portid() to retrieve the
Netlink portID that has been assigned to a given socket.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/include/libnfnetlink/libnfnetlink.h b/include/libnfnetlink/libnfnetlink.h
index f689ab0..935d903 100644
--- a/include/libnfnetlink/libnfnetlink.h
+++ b/include/libnfnetlink/libnfnetlink.h
@@ -50,6 +50,7 @@ struct nfnl_handle;
 struct nfnl_subsys_handle;
 
 extern int nfnl_fd(struct nfnl_handle *h);
+extern unsigned int nfnl_portid(const struct nfnl_handle *h);
 
 /* get a new library handle */
 extern struct nfnl_handle *nfnl_open(void);