Sync IPv4 and IPv6 multicast handlers and disable connect() on FreeBSD

- it doesn't work neither on FreeBSD 5.4 nor on FreeBSD 4.11:
      cannot connect socket (Can't assign requested address)

modules/misc/network/ipv4.c

@@ -260,13 +260,15 @@ static int OpenUDP( vlc_object_t * p_this )
         /* Determine interface to be used for multicast */
         char * psz_if_addr = config_GetPsz( p_this, "miface-addr" );
 
-#ifdef IP_ADD_SOURCE_MEMBERSHIP
         /* If we have a source address, we use IP_ADD_SOURCE_MEMBERSHIP
            so that IGMPv3 aware OSes running on IGMPv3 aware networks
            will do an IGMPv3 query on the network */
         if (( *psz_server_addr )
          /*&& ((ntohl (sock.sin_addr.s_addr) >> 24) == 232)*/)
         {
+#ifndef IP_ADD_SOURCE_MEMBERSHIP
+            errno = ENOSYS;
+#else
             struct ip_mreq_source imr;
 
             imr.imr_multiaddr.s_addr = sock.sin_addr.s_addr;
@@ -287,20 +289,20 @@ static int OpenUDP( vlc_object_t * p_this )
             if( setsockopt( i_handle, IPPROTO_IP, IP_ADD_SOURCE_MEMBERSHIP,
                          (char*)&imr,
                          sizeof(struct ip_mreq_source) ) == -1 )
+#endif
             {
                 msg_Warn( p_this, "Source specific multicast failed (%s) -"
-                          "check if your OS really supports IGMPv3",
+                          " check if your OS really supports IGMPv3",
                           strerror(errno) );
                 goto igmpv2;
             }
         }
         /* If there is no source address, we use IP_ADD_MEMBERSHIP */
         else
-#endif
+igmpv2:
         {
             struct ip_mreq imr;
 
-        igmpv2:
             imr.imr_interface.s_addr = INADDR_ANY;
             imr.imr_multiaddr.s_addr = sock.sin_addr.s_addr;
             if( psz_if_addr != NULL && *psz_if_addr
@@ -381,6 +383,10 @@ static int OpenUDP( vlc_object_t * p_this )
     }
 #endif
 
+#ifdef __FreeBSD__
+    else
+#endif
+
     if( *psz_server_addr )
     {
         /* Build socket for remote connection */

modules/misc/network/ipv6.c

@@ -279,10 +279,11 @@ static int OpenUDP( vlc_object_t * p_this )
             }
         }
         else
+mldv1:
         {
             struct ipv6_mreq     imr;
             int                  res;
-mldv1:
+
             imr.ipv6mr_interface = sock.sin6_scope_id;
             imr.ipv6mr_multiaddr = sock.sin6_addr;
             msg_Dbg( p_this, "IPV6_JOIN_GROUP multicast request" );
@@ -302,6 +303,10 @@ mldv1:
         }
     }
 
+#ifdef __FreeBSD__
+    else
+#endif
+
     if( *psz_server_addr )
     {
         int ttl;