Handle the "no local address" case in send_sptps_data().

[tinc] / src / net_packet.c

diff --git a/src/net_packet.c b/src/net_packet.c
index 36386b5..609b452 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -54,7 +54,7 @@ static char lzo_wrkmem[LZO1X_999_MEM_COMPRESS > LZO1X_1_MEM_COMPRESS ? LZO1X_999
 static void send_udppacket(node_t *, vpn_packet_t *);
 
 unsigned replaywin = 16;
-bool localdiscovery = false;
+bool localdiscovery = true;
 
 #define MAX_SEQNO 1073741824
 
@@ -769,12 +769,12 @@ bool send_sptps_data(void *handle, uint8_t type, const char *data, size_t len) {
 
        /* Otherwise, send the packet via UDP */
 
-       const sockaddr_t *sa;
+       const sockaddr_t *sa = NULL;
        int sock;
 
        if(to->status.send_locally)
                choose_local_address(to, &sa, &sock);
-       else
+       if(!sa)
                choose_udp_address(to, &sa, &sock);
 
        if(sendto(listen_socket[sock].udp.fd, data, len, 0, &sa->sa, SALEN(sa->sa)) < 0 && !sockwouldblock(sockerrno)) {