extern void tls_close(void *, int);
extern BOOL tls_could_read(void);
extern void tls_daemon_init(void);
-extern void tls_daemon_tick(void);
+extern int tls_daemon_tick(void);
extern BOOL tls_dropprivs_validate_require_cipher(BOOL);
extern BOOL tls_export_cert(uschar *, size_t, void *);
extern int tls_feof(void);
extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
BOOL);
-extern int parse_forward_list(uschar *, int, address_item **, uschar **,
+extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
const uschar *, uschar *, error_block **);
-extern uschar *parse_find_address_end(uschar *, BOOL);
+extern uschar *parse_find_address_end(const uschar *, BOOL);
extern const uschar *parse_find_at(const uschar *);
extern const uschar *parse_fix_phrase(const uschar *, int);
extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
extern void store_exit(void);
extern void store_init(void);
+extern void store_writeprotect(int);
extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;