{
printf("usage: btrfs-crc filename\n");
printf(" print out the btrfs crc for \"filename\"\n");
- printf("usage: btrfs-crc filename -c crc [-s seed] [-l length]\n");
+ printf("usage: btrfs-crc -c crc [-s seed] [-l length]\n");
printf(" brute force search for file names with the given crc\n");
printf(" -s seed the random seed (default: random)\n");
printf(" -l length the length of the file names (default: 10)\n");
+ printf("usage: btrfs-crc -h\n");
+ printf(" print this message\n");
exit(status);
}
str = argv[optind];
if (!loop) {
- if (check_argc_min(argc - optind, 1))
+ if (check_argc_exact(argc - optind, 1))
print_usage(255);
printf("%12u - %s\n", crc32c(~1, str, strlen(str)), str);
return 0;
}
+ if (check_argc_exact(argc - optind, 0))
+ print_usage(255);
buf = malloc(length);
if (!buf)