extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
extern uschar *dns_text_type(int);
+extern void dscp_list_to_stream(FILE *);
extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
extern void enq_end(uschar *);
extern void invert_address(uschar *, uschar *);
extern int ip_bind(int, int, uschar *, int);
extern int ip_connect(int, int, uschar *, int, int);
+extern int ip_get_address_family(int);
extern void ip_keepalive(int, uschar *, BOOL);
extern int ip_recv(int, uschar *, int, int);
extern int ip_socket(int, int);