gridsel.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5
   6 #include <stdlib.h>
   7 #include <stdio.h>
   8 #include <string.h>
   9
  10 #include <util.h>
  11
  12 static char version[] = "gridsel - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
  13
  14 static void
  15 usage()
  16 {
  17         fprintf(stderr, "%s\n", "usage: gridsel [-v]\n");
  18         exit(1);
  19 }
  20
  21 int
  22 main(int argc, char **argv)
  23 {
  24         unsigned char *data;
  25         unsigned long i, offset, len, remain;
  26
  27         /* command line args */
  28         if(argc > 1) {
  29                 if(!strncmp(argv[1], "-v", 3)) {
  30                         fprintf(stdout, "%s", version);
  31                         exit(0);
  32                 } else
  33                         usage();
  34         }
  35         len = offset = remain = 0;
  36         do {
  37                 data = getselection(offset, &len, &remain);
  38                 for(i = 0; i < len; i++)
  39                         putchar(data[i]);
  40                 offset += len;
  41                 free(data);
  42         }
  43         while(remain);
  44         if(offset)
  45                 putchar('\n');
  46         return 0;
  47 }