git.itanic.dy.fi Git - glucose/blob - main.c

   1 /*
   2  * Copyright (C) 2012 Timo Kokkonen <timo.t.kokkonen@iki.fi>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  17  * USA
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <linux/types.h>
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <fcntl.h>
  27 #include <string.h>
  28 #include <errno.h>
  29
  30 #include "hiddev.h"
  31 #include "utils.h"
  32 #include "options.h"
  33 #include "contour-protocol.h"
  34
  35 int main(int argc, char *argv[])
  36 {
  37         FILE *outf;
  38         struct user_options opts;
  39         struct msg msg;
  40         int fd, usage_code, ret, error;
  41         int entries = 0;
  42
  43         read_args(argc, argv, &opts);
  44
  45         trace_level = opts.trace_level;
  46
  47         if (opts.output_path) {
  48                 outf = fopen(opts.output_path, "w");
  49                 if (outf == NULL) {
  50                         error = errno;
  51                         trace(0, "Failed to open output file %s: %s\n",
  52                                 opts.output_path, strerror(error));
  53                         return 1;
  54                 }
  55         } else {
  56                 outf = stdout;
  57         }
  58
  59         if (opts.usbdev == NULL)
  60                 fd = wait_for_device(CONTOUR_USB_VENDOR_ID,
  61                                 CONTOUR_USB_PRODUCT_ID, &usage_code);
  62         else
  63                 fd = hiddev_open(opts.usbdev, &usage_code);
  64         if (fd < 0)
  65                 return 1;
  66
  67         trace(0, "Initializing\n");
  68         contour_initialize(fd, usage_code);
  69
  70         trace(0, "Done! Reading data\n");
  71         while (1) {
  72                 ret = contour_read_entry(fd, usage_code, &msg);
  73                 sanitize_ascii(msg.data, ret);
  74
  75                 if (ret < 45)
  76                         break;
  77
  78                 fprintf(outf, "%s\n", msg.data);
  79
  80                 entries++;
  81                 if (outf != stdout) {
  82                         trace(0, "\r%d", entries);
  83                         fflush(stdout);
  84                 }
  85         }
  86         trace(0, "\n");
  87
  88         return 0;
  89 }