@deftypefun {int} {gnutls_pkcs11_token_get_ptr} (const char * @var{url}, void ** @var{ptr}, unsigned long * @var{slot_id}, unsigned int @var{flags}) @var{url}: should contain a PKCS@code{11} URL identifying a token @var{ptr}: will contain the CK_FUNCTION_LIST_PTR pointer @var{slot_id}: will contain the slot_id (may be @code{NULL} ) @var{flags}: should be zero This function will return the function pointer of the specified token by the URL. The returned pointers are valid until gnutls is deinitialized, c.f. @code{_global_deinit()} . @strong{Returns:} @code{GNUTLS_E_SUCCESS} (0) on success or a negative error code on error. @strong{Since:} 3.6.3 @end deftypefun