text: #include "bitmatch.h"
  #include "stdio.h"
  #include "stdlib.h"
  #include "unistd.h"
  
  int main(int argc, const char **argv) {
    if (argc != 3) {
      fprintf(stderr, BITMATCH_USAGE);
      fprintf(stderr, "\n");
      return 2;
    }
    const char *pattern = argv[1];
    const int pattern_len = atoi(argv[2]);
    int found = search_in_file(pattern, pattern_len, STDIN_FILENO);
    return !found;
  }
  