openssl_sys::PKCS5_PBKDF2_HMAC

pub unsafe extern fn PKCS5_PBKDF2_HMAC(pass: *const c_char, passlen: c_int, salt: *const c_uchar, saltlen: c_int, iter: c_int, digest: *const EVP_MD, keylen: c_int, out: *mut u8) -> c_int