Have a peer event for keep alives too. Its only function is to log atm.

btpd/net.c

@@ -246,7 +246,7 @@ net_state(struct peer *p, const char *buf)
     case BTP_MSGSIZE:
 	p->net.msg_len = net_read32(buf);
 	if (p->net.msg_len == 0)
-	    btpd_log(BTPD_L_MSG, "received keep alive from %p\n", p);
+	    peer_on_keepalive(p);
 	else
 	    net_set_state(p, BTP_MSGHEAD, 1);
         break;

btpd/peer.c

@@ -315,6 +315,12 @@ peer_on_no_reqs(struct peer *p)
 	peer_send(p, btpd.uninterest_msg);
 }
 
+void
+peer_on_keepalive(struct peer *p)
+{
+    btpd_log(BTPD_L_MSG, "received keep alive from %p\n", p);
+}
+
 void
 peer_on_shake(struct peer *p)
 {

btpd/peer.h

@@ -89,6 +89,7 @@ void peer_create_out_compact(struct torrent *tp, const char *compact);
 void peer_kill(struct peer *p);
 
 void peer_on_no_reqs(struct peer *p);
+void peer_on_keepalive(struct peer *p);
 void peer_on_shake(struct peer *p);
 void peer_on_interest(struct peer *p);
 void peer_on_uninterest(struct peer *p);