SOFIAPUBVAR tag_class_t ref_tag_class[];
+SOFIAPUBFUN tagi_t *t_filter(tagi_t *, tagi_t const [],
+ tagi_t const *, void **);
+SOFIAPUBFUN tagi_t *t_null_filter(tagi_t *dst, tagi_t const filter[],
+ tagi_t const *src, void **bb);
+SOFIAPUBFUN tagi_t *t_end_filter(tagi_t *, tagi_t const [],
+ tagi_t const *, void **);
+
SOFIAPUBFUN int t_ptr_snprintf(tagi_t const *t, char b[], size_t size);
SOFIAPUBFUN int t_ptr_ref_set(tag_type_t tt, void *ref, tagi_t const value[]);
SOFIAPUBFUN int t_ptr_scan(tag_type_t, su_home_t *, char const *,
SOFIAPUBFUN int t_uint_scan(tag_type_t, su_home_t *, char const *,
tag_value_t *return_value);
+SOFIAPUBFUN int t_socket_snprintf(tagi_t const *t, char b[], size_t size);
+SOFIAPUBFUN int t_socket_ref_set(tag_type_t tt, void *ref, tagi_t const value[]);
+
SOFIAPUBFUN tagi_t *t_str_dup(tagi_t *dst, tagi_t const *src, void **b);
SOFIAPUBFUN size_t t_str_xtra(tagi_t const *t, size_t offset);
SOFIAPUBFUN int t_str_snprintf(tagi_t const *t, char b[], size_t size);