Function main

src/split.c:1406–1758

int
main (int argc, char **argv)
{
  enum Split_type split_type = type_undef;
  idx_t in_blk_size = 0;	/* optimal block size of input file device */
  idx_t page_size = getpagesize ();
  intmax_t k_units = 0;
  intmax_t n_units = 0;

  static char const multipliers[] = "bEGKkMmPQRTYZ0";
  int c;
  int digits_optind = 0;
  off_t file_size = OFF_T_MAX;

  initialize_main (&argc, &argv);
  set_program_name (argv[0]);
  setlocale (LC_ALL, "");
  bindtextdomain (PACKAGE, LOCALEDIR);
  textdomain (PACKAGE);

  atexit (close_stdout);

  /* Parse command line options.  */

  while (true)
    {
      /* This is the argv-index of the option we will read next.  */
      int this_optind = optind ? optind : 1;

      c = getopt_long (argc, argv, "0123456789C:a:b:del:n:t:ux",
                       longopts, NULL);
      if (c == -1)
        break;

      switch (c)
        {
        case 'a':
          suffix_length = xdectoimax (optarg, 0, IDX_MAX,
                                      "", _("invalid suffix length"), 0);
          break;

        case ADDITIONAL_SUFFIX_OPTION:
          {
            int suffix_len = strlen (optarg);
            if (last_component (optarg) != optarg
                || (suffix_len && ISSLASH (optarg[suffix_len - 1])))
              {
                error (0, 0,
                       _("invalid suffix %s, contains directory separator"),
                       quote (optarg));
                usage (EXIT_FAILURE);
              }
          }
          additional_suffix = optarg;
          break;

        case 'b':
          if (split_type != type_undef)