-uerr_t retrieve_url (const char *, char **, char **, const char *, int *);
-uerr_t retrieve_from_file (const char *, int, int *);
+uerr_t retrieve_url (const char *, char **, char **, const char *, int *, bool);
+uerr_t retrieve_from_file (const char *, bool, int *);