@deftypefun {unsigned} {gnutls_pkcs11_token_check_mechanism} (const char * @var{url}, unsigned long @var{mechanism}, void * @var{ptr}, unsigned @var{psize}, unsigned @var{flags})

@var{url}: should contain a PKCS 11 URL

@var{mechanism}: The PKCS @code{11}  mechanism ID

@var{ptr}: if set it should point to a CK_MECHANISM_INFO struct

@var{psize}: the size of CK_MECHANISM_INFO struct (for safety)

@var{flags}: must be zero

This function will return whether a mechanism is supported

by the given token. If the mechanism is supported and

 @code{ptr} is set, it will be updated with the token information.

@strong{Returns:} Non-zero if the mechanism is supported or zero otherwise.

@strong{Since:} 3.6.0

@end deftypefun