test/src/lxn2igc.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 /* Convert LXN files to IGC */
  25
  26 #include "Device/Driver/LX/Convert.hpp"
  27 #include "OS/Args.hpp"
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31
  32 static const long MAX_LXN_SIZE = 1024 * 1024;
  33
  34 int
  35 main(int argc, char **argv)
  36 {
  37   Args args(argc, argv, "FILE.lxn");
  38   const char *lxn_path = args.ExpectNext();
  39   args.ExpectEnd();
  40
  41   FILE *file = fopen(lxn_path, "rb");
  42   if (file == NULL) {
  43     fprintf(stderr, "Failed to open file %s\n", lxn_path);
  44     return EXIT_FAILURE;
  45   }
  46
  47   long size;
  48   if (fseek(file, 0, SEEK_END) != 0 || (size = ftell(file)) <= 0 ||
  49       fseek(file, 0, SEEK_SET) != 0 || size > MAX_LXN_SIZE)  {
  50     fprintf(stderr, "Failed to seek file %s\n", lxn_path);
  51     fclose(file);
  52     return EXIT_FAILURE;
  53   }
  54
  55   void *data = malloc(size);
  56   size_t n = fread(data, 1, size, file);
  57   fclose(file);
  58   if (n != (size_t)size) {
  59     free(data);
  60     fprintf(stderr, "Failed to read from file %s\n", lxn_path);
  61     return EXIT_FAILURE;
  62   }
  63
  64   bool success = LX::ConvertLXNToIGC(data, n, stdout);
  65   free(data);
  66
  67   return success ? EXIT_SUCCESS : EXIT_FAILURE;
  68 }