- base64_init(&b64);
- base64_decode(&b64, av[0], strlen(av[0]), &d);
- base64_decode(&b64, 0, 0, &d);
- buf_init(&b, d.buf, d.len);
- if (c_check(&b) || BBAD(&b) || BLEFT(&b))
- a_fail(a, "invalid-challenge", A_END);
- else
- a_ok(a);
+ if ((err = b64->ops->code(b64, av[0], strlen(av[0]), &d)) != 0 ||
+ (err = b64->ops->code(b64, 0, 0, &d)) != 0)
+ a_fail(a, "bad-base64", "%s", codec_strerror(err), A_END);
+ else {
+ buf_init(&b, d.buf, d.len);
+ if (c_check(0, 0, &b) || BBAD(&b) || BLEFT(&b))
+ a_fail(a, "invalid-challenge", A_END);
+ else
+ a_ok(a);
+ }
+ b64->ops->destroy(b64);