round-trip-grid-file.c

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/*
** round-trip-grid-file.c
** 
    Copyright (C) 2010 Joseph Pingenot

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

** Made by (Johnny Q. Hacker)
** Login   <solarion@nathan>
** 
** Started on  Sun Feb 28 06:54:55 2010 Johnny Q. Hacker
** Last update Sun May 12 01:17:25 2002 Speed Blue
*/

#include <stdio.h>
#include <libdotcode/read_binary_data.h>
#include <libdotcode/write_binary_data.h>

int main(int argc, char** argv) {
  if(argc < 3) {
    fprintf(stderr, "ERROR: you must give two arguments: the input file and the output file.\n");
    return 1;
  }
  g_type_init();
  //fprintf(stderr, "=%s\n", argv[0]);
  //fprintf(stderr, "=%s\n", argv[1]);
  GFile* inf = g_file_new_for_commandline_arg(argv[1]);
  GFile* ouf = g_file_new_for_commandline_arg(argv[2]);
  printf("Roundtripping from \"%s\" to \"%s\"\n", argv[1], argv[2]);
  GError *e = NULL;
  enum dotcode_type t;
  void* g = read_dotcode_generic_file(&t, inf, &e);
  if(e != NULL) {
    fprintf(stderr, "ERROR reading input file: %s\n", e->message);
    return 10;
  }
  if(g == NULL) {
    fprintf(stderr, "ERROR read_dotcode_generic_file returned NULL!\n");
    return 11;
  }
  if(t != DOTCODE_GRID) {
    fprintf(stderr, "ERROR got incorrect dotcode type (should be grid!): was %d (%s)\n", t, dotcode_string_from_type2(t));
    return 12;
  }
  e = dotcode_write_typed_file(t, g, ouf);
  if(e != NULL) {
    fprintf(stderr, "ERROR writing input file back out again: %s\n", e->message);
    return 20;
  }
  return 0;
}