/* 'checkit_tiff' is a conformance checker for baseline TIFFs
 *
 * author: Andreas Romeyke, 2015-2022
 * licensed under conditions of libtiff
 * (see http://libtiff.maptools.org/misc.html)
 *
 */

#include "check.h"
#include "check_helper.h"
#include "risk_analyzer.h"
#include <ctype.h>
#include <stdio.h>
#ifdef __unix__
#else
      /* #include <sys\stat.h> */
      #include <sys/stat.h>
#endif

/** help function */
static void help (void) {
  printf ("checkit_tiff_risk\n");
  printf("licensed under conditions of libtiff (see http://libtiff.maptools.org/misc.html)\n\n");
  printf ("call it with:\n");
  printf ("\tcheckit_tiff_risk [-m|-h|-s] <tifffile>\n");
  printf ("\nwhere <tifffile> is the tiff file\n");
  printf ("\t-h this help\n");
  printf ("\t-m prints a memory map\n");
  printf ("\t-s prints statistics\n");
  printf ("example:\n\tcheckit_tiff -m tiffs_should_pass/minimal_valid.tiff\n");
  printf ("\n");
}


/* *********** main ************* */
int main(int argc, char * argv[]) {
  int c;
  int flag_print_map = UNFLAGGED;
  int flag_print_stats = UNFLAGGED;
  while ((c = getopt (argc, argv, "hms")) != -1) {
    switch (c)
    {
      case 'h': /* help */
        help();
        exit (0);
      case 'm': /*  mem map */
        flag_print_map = FLAGGED;
        break;
      case 's': /*  stats */
        flag_print_stats = FLAGGED;
        break;
      case '?': /* something goes wrong */
        if (isprint (optopt)) {
             fprintf (stderr, "Unknown option `-%c'.\n", optopt);
             return (-1);
        } else if (0 !=optopt) {
             fprintf (stderr, "Unknown option character `\\x%x'.\n", optopt);
             return (-1);
        }
        break;
      default:
           abort();
    }


  }
  if (argc - optind != 1) {
    help();
    fprintf( stderr, "%s needs at least one arguments, example:\n\t %s tiffs_should_pass/minimal_valid.tiff\n", argv[0], argv[0]);
    exit (EXIT_FAILURE);
  }
  const char *tiff_file=argv[optind];
  ctiff_t * ctif = initialize_ctif( tiff_file, is_filep  );
  parse_header_and_endianess( ctif );
  uint32 offset;
  ret_t res=get_first_IFD(ctif, &offset);
  if (res.returncode == is_valid) {
    mem_map_t * memmap_p = scan_mem_map(ctif);
    if (FLAGGED == flag_print_map) {
      print_mem_map ( memmap_p );
    }
    if (FLAGGED == flag_print_stats) {
      print_mem_stats( memmap_p );
    }
    return (EXIT_SUCCESS);
  } else {
    return (EXIT_FAILURE);
  }
}

/* vim: set tabstop=2 softtabstop=2 shiftwidth=2 smarttab expandtab :*/
