* net_AddressIsMulticast: This function returns VLC_FALSE if the psz_addr does
* not specify a multicast address or if the address is not a valid address.
*****************************************************************************/
-static inline vlc_bool_t net_AddressIsMulticast( vlc_object_t *p_object, char *psz_addr )
+static inline vlc_bool_t net_AddressIsMulticast( vlc_object_t *p_object, const char *psz_addr )
{
struct addrinfo hints, *res;
vlc_bool_t b_multicast = VLC_FALSE;