ethstream/ljconfig.c

/*
 * Labjack Tools
 * Copyright (c) 2003-2007 Jim Paris <jim@jtan.com>
 *
 * This is free software; you can redistribute it and/or modify it and
 * it is provided under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation; see COPYING.
 */

/* ljconfig: display/change comm/control processor configuration */

#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "debug.h"
#include "ue9.h"
#include "ue9error.h"
#include "opt.h"
#include "version.h"

#define DEFAULT_HOST "192.168.1.209"
#define UE9_COMMAND_PORT 52360

struct options opt[] = {
  {'a', "address", "string", "host/address of UE9 (192.168.1.209)"},
  {'h', "help", NULL, "this help"},
  {'v', "verbose", NULL, "be verbose"},
  {'V', "version", NULL, "show version number and exit"},
  {0, NULL, NULL, NULL}
};

int
main (int argc, char *argv[])
{
  int optind;
  char *optarg;
  char c;
  FILE *help = stderr;
  char *address = strdup (DEFAULT_HOST);
  int fd;
  int ret;

  /* Parse arguments */
  opt_init (&optind);
  while ((c = opt_parse (argc, argv, &optind, &optarg, opt)) != 0)
    {
      switch (c)
	{
	case 'a':
	  free (address);
	  address = strdup (optarg);
	  break;
	case 'v':
	  verb_count++;
	  break;
	case 'V':
	  printf ("ljconfig " VERSION "\n");
	  printf ("Written by Jim Paris <jim@jtan.com>\n");
	  printf ("This program comes with no warranty and is "
		  "provided under the GPLv2.\n");
	  return 0;
	  break;
	case 'h':
	  help = stdout;
	default:
	printhelp:
	  fprintf (help, "Usage: %s [options]\n", *argv);
	  opt_help (opt, help);
	  fprintf (help, "Displays/changes Labjack UE9 config.\n");
	  return (help == stdout) ? 0 : 1;
	}
    }

  if (optind < argc)
    {
      info ("Error: too many arguments (%s)\n\n", argv[optind]);
      goto printhelp;
    }

  ret = 1;

  /* Open */
  fd = ue9_open (address, UE9_COMMAND_PORT);
  if (fd < 0)
    {
      info ("Connect failed: %s:%d\n", address, UE9_COMMAND_PORT);
      goto out0;
    }

  goto out1;


  ret = 0;
out1:
  /* Close */
  ue9_close (fd);
out0:
  return ret;
}