struct decrypt_key_s *hd; int err;
int err; struct decrypt_key_s *hd;  hd = xcalloc (1, sizeof *hd); hd->ttl = ttl; err = do_decrypt (passphrase_callback_box, hd, inbuf, outbuf);
op_decrypt_start (const char *inbuf, char **outbuf){    struct decrypt_key_s *hd;    int err;    hd = (struct decrypt_key_s *)xcalloc (1, sizeof *hd);    err = op_decrypt (passphrase_callback_box, hd, inbuf, outbuf);    free_decrypt_key (hd);    return err;}