extern http_t *_cupsConnect(void);
extern char *_cupsCreateDest(const char *name, const char *info, const char *device_id, const char *device_uri, char *uri, size_t urisize);
+extern void _cupsEncodeOption(ipp_t *ipp, ipp_tag_t group_tag, _ipp_option_t *map, const char *name, const char *value);
extern int _cupsGet1284Values(const char *device_id,
cups_option_t **values);
extern const char *_cupsGetDestResource(cups_dest_t *dest, char *resource,