bgpd: fix O_NONBLOCK on outgoing connects

BGP was setting sockets to be non-blocking only for the accepted passive
peers.  As a fix, setting the BGP sockets to be non-blocking even for
the active peers.

Signed-off-by: Vipin Kumar <vipin@cumulusnetworks.com>
Reviewed-by: Pradosh Mohapatra <pmohapat@cumulusnetworks.com>
Reviewed-by: Dinesh Dutt <ddutt@cumulusnetworks.com>
[DL: patch split, this is item 1.]
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/bgpd/bgp_network.c b/bgpd/bgp_network.c
index 79d5d27..bcaaba7 100644
--- a/bgpd/bgp_network.c
+++ b/bgpd/bgp_network.c
@@ -306,6 +306,8 @@
   if (peer->fd < 0)
     return -1;
 
+  set_nonblocking (peer->fd);
+
   /* If we can get socket for the peer, adjest TTL and make connection. */
   if (peer->sort == BGP_PEER_EBGP) {
     sockopt_ttl (peer->su.sa.sa_family, peer->fd, peer->ttl);