/* parse the command-line */
	while ((char)EOF != (ch = (char)zbx_getopt_long(argc, argv, shortopts, longopts, NULL)))
	{
		switch (ch)
		{
			case 'k':
				key = strdup(zbx_optarg);
				break;
			case 'p':
				port = (unsigned short)atoi(zbx_optarg);
				break;
			case 's':
				host = strdup(zbx_optarg);
				break;
			case 'I':
				source_ip = strdup(zbx_optarg);
				break;
			case 'h':
				help();
				exit(-1);
				break;
			case 'V':
				version();
				exit(-1);
				break;
			default:
				usage();
				exit(-1);
				break;
		}
	}