libbb: move netlink socket binding to the utility function

function                                             old     new   delta
create_and_bind_to_netlink                             -     134    +134
ifplugd_main                                        1117    1052     -65
uevent_main                                          399     306     -93
mdev_main                                            314     215     -99
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/3 up/down: 134/-257)         Total: -123 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 3a870bf80..100d6b606 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -688,6 +688,7 @@ int xsocket_stream(len_and_sockaddr **lsap) FAST_FUNC;
 /* NB: these set SO_REUSEADDR before bind */
 int create_and_bind_stream_or_die(const char *bindaddr, int port) FAST_FUNC;
 int create_and_bind_dgram_or_die(const char *bindaddr, int port) FAST_FUNC;
+int create_and_bind_to_netlink(int proto, int grp, unsigned rcvbuf) FAST_FUNC;
 /* Create client TCP socket connected to peer:port. Peer cannot be NULL.
  * Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
  * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").