+
+#if !HAVE_INET_PTON
+/* only in core, so no need for C++ extern "C" */
+int inet_pton(int af, const char *src, void *dst);
+#endif
+
+
+/*****************************************************************************
+ * net_StopRecv/Send
+ *****************************************************************************
+ * Wrappers for shutdown()
+ *****************************************************************************/
+#if defined (SHUT_WR)
+/* the standard way */
+# define net_StopSend( fd ) (void)shutdown( fd, SHUT_WR )
+# define net_StopRecv( fd ) (void)shutdown( fd, SHUT_RD )
+#elif defined (SD_SEND)
+/* the Microsoft seemingly-purposedly-different-for-the-sake-of-it way */
+# define net_StopSend( fd ) (void)shutdown( fd, SD_SEND )
+# define net_StopRecv( fd ) (void)shutdown( fd, SD_RECEIVE )
+#else
+# ifndef SYS_BEOS /* R5 just doesn't have a working shutdown() */
+# warning FIXME: implement shutdown on your platform!
+# endif
+# define net_StopSend( fd ) (void)0
+# define net_StopRecv( fd ) (void)0
+#endif
+
+/* Portable network names/addresses resolution layer */
+
+/* GAI error codes */
+# ifndef EAI_BADFLAGS
+# define EAI_BADFLAGS -1
+# endif
+# ifndef EAI_NONAME
+# define EAI_NONAME -2
+# endif
+# ifndef EAI_AGAIN
+# define EAI_AGAIN -3
+# endif
+# ifndef EAI_FAIL
+# define EAI_FAIL -4
+# endif
+# ifndef EAI_NODATA
+# define EAI_NODATA -5
+# endif
+# ifndef EAI_FAMILY
+# define EAI_FAMILY -6
+# endif
+# ifndef EAI_SOCKTYPE
+# define EAI_SOCKTYPE -7
+# endif
+# ifndef EAI_SERVICE
+# define EAI_SERVICE -8
+# endif
+# ifndef EAI_ADDRFAMILY
+# define EAI_ADDRFAMILY -9
+# endif
+# ifndef EAI_MEMORY
+# define EAI_MEMORY -10
+# endif
+# ifndef EAI_SYSTEM
+# define EAI_SYSTEM -11
+# endif
+
+
+# ifndef NI_MAXHOST
+# define NI_MAXHOST 1025
+# define NI_MAXSERV 32
+# endif
+# define NI_MAXNUMERICHOST 64
+
+# ifndef NI_NUMERICHOST
+# define NI_NUMERICHOST 0x01
+# define NI_NUMERICSERV 0x02
+# define NI_NOFQDN 0x04
+# define NI_NAMEREQD 0x08
+# define NI_DGRAM 0x10
+# endif
+
+# ifndef HAVE_STRUCT_ADDRINFO
+struct addrinfo
+{
+ int ai_flags;
+ int ai_family;
+ int ai_socktype;
+ int ai_protocol;
+ size_t ai_addrlen;
+ struct sockaddr *ai_addr;
+ char *ai_canonname;
+ struct addrinfo *ai_next;
+};
+# define AI_PASSIVE 1
+# define AI_CANONNAME 2
+# define AI_NUMERICHOST 4
+# endif /* if !HAVE_STRUCT_ADDRINFO */
+
+/*** libidn support ***/
+# ifndef AI_IDN
+# define AI_IDN 0
+# define AI_CANONIDN 0
+# endif
+
+VLC_EXPORT( const char *, vlc_gai_strerror, ( int ) );
+VLC_EXPORT( int, vlc_getnameinfo, ( const struct sockaddr *, int, char *, int, int *, int ) );
+VLC_EXPORT( int, vlc_getaddrinfo, ( vlc_object_t *, const char *, int, const struct addrinfo *, struct addrinfo ** ) );
+VLC_EXPORT( void, vlc_freeaddrinfo, ( struct addrinfo * ) );
+
+/*****************************************************************************
+ * 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, const char *psz_addr )
+{
+ struct addrinfo hints, *res;
+ vlc_bool_t b_multicast = VLC_FALSE;
+ int i;
+
+ memset( &hints, 0, sizeof( hints ) );
+ hints.ai_socktype = SOCK_DGRAM; /* UDP */
+ hints.ai_flags = AI_NUMERICHOST;
+
+ i = vlc_getaddrinfo( p_object, psz_addr, 0,
+ &hints, &res );
+ if( i )
+ {
+ msg_Err( p_object, "Invalid node for net_AddressIsMulticast: %s : %s",
+ psz_addr, vlc_gai_strerror( i ) );
+ return VLC_FALSE;
+ }
+
+ if( res->ai_family == AF_INET )
+ {
+#if !defined( SYS_BEOS )
+ struct sockaddr_in *v4 = (struct sockaddr_in *) res->ai_addr;
+ b_multicast = ( ntohl( v4->sin_addr.s_addr ) >= 0xe0000000 )
+ && ( ntohl( v4->sin_addr.s_addr ) <= 0xefffffff );
+#endif
+ }
+#if defined( WIN32 ) || defined( HAVE_GETADDRINFO )
+ else if( res->ai_family == AF_INET6 )
+ {
+ struct sockaddr_in6 *v6 = (struct sockaddr_in6 *)res->ai_addr;
+ b_multicast = IN6_IS_ADDR_MULTICAST( &v6->sin6_addr );
+ }
+#endif
+
+ vlc_freeaddrinfo( res );
+ return b_multicast;
+}
+
+static inline int net_GetSockAddress( int fd, char *address, int *port )
+{
+ struct sockaddr_storage addr;
+ socklen_t addrlen = sizeof( addr );
+
+ return getpeername( fd, (struct sockaddr *)&addr, &addrlen )
+ || vlc_getnameinfo( (struct sockaddr *)&addr, addrlen, address,
+ NI_MAXNUMERICHOST, port, NI_NUMERICHOST )
+ ? VLC_EGENERIC : 0;
+}
+
+static inline int net_GetPeerAddress( int fd, char *address, int *port )
+{
+ struct sockaddr_storage addr;
+ socklen_t addrlen = sizeof( addr );
+
+ return getpeername( fd, (struct sockaddr *)&addr, &addrlen )
+ || vlc_getnameinfo( (struct sockaddr *)&addr, addrlen, address,
+ NI_MAXNUMERICHOST, port, NI_NUMERICHOST )
+ ? VLC_EGENERIC : 0;
+}
+
+# ifdef __cplusplus
+}
+# endif
+