QEFCNNVCEDFUV7O4ASWVI4QUTUFWLHAOTJMDCZ3DFJIUQWTAN3SAC /* FIXME: Add argument handling */return change();
const char *hash;size_t l;if (argc < 2) {fprintf(stderr, "error: invalid number of arguments. See --help\n");return -1;}hash = argv[1];/*** input validation* FIXME: Support prefixes properly*/if ((l = strnlen(hash, 54)) != 53) {fprintf(stderr, "error: hash must be exactly 53 characters (got: %lu)\n", l);return -1;}return change(hash);