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

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <linux/types.h>
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <fcntl.h>
   8 #include <string.h>
   9 #include <errno.h>
  10
  11 #include "hiddev.h"
  12 #include "utils.h"
  13 #include "options.h"
  14 #include "contour-protocol.h"
  15
  16 int main(int argc, char *argv[])
  17 {
  18         FILE *outf;
  19         struct user_options opts;
  20         struct msg msg;
  21         int fd, usage_code, ret, error;
  22         int entries = 0;
  23
  24         read_args(argc, argv, &opts);
  25
  26         trace_level = opts.trace_level;
  27
  28         if (opts.output_path) {
  29                 outf = fopen(opts.output_path, "w");
  30                 if (outf == NULL) {
  31                         error = errno;
  32                         trace(0, "Failed to open output file %s: %s\n",
  33                                 opts.output_path, strerror(error));
  34                         return 1;
  35                 }
  36         } else {
  37                 outf = stdout;
  38         }
  39
  40         if (opts.usbdev == NULL)
  41                 fd = wait_for_device(CONTOUR_USB_VENDOR_ID,
  42                                 CONTOUR_USB_PRODUCT_ID, &usage_code);
  43         else
  44                 fd = hiddev_open(opts.usbdev, &usage_code);
  45         if (fd < 0)
  46                 return 1;
  47
  48         trace(0, "Initializing\n");
  49         contour_initialize(fd, usage_code);
  50
  51         trace(0, "Done! Reading data\n");
  52         while (1) {
  53                 ret = contour_read_entry(fd, usage_code, &msg);
  54                 sanitize_ascii(msg.data, ret);
  55
  56                 if (ret < 45)
  57                         break;
  58
  59                 fprintf(outf, "%s\n", msg.data);
  60
  61                 entries++;
  62                 if (outf != stdout) {
  63                         trace(0, "\r%d", entries);
  64                         fflush(stdout);
  65                 }
  66         }
  67         trace(0, "\n");
  68
  69         return 0;
  70 }