static struct option long_options[] = {
{"version", no_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"port", required_argument, 0, 'p'},
{"wdir", required_argument, 0, 'w'},
static struct option long_options[] = {
{"version", no_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"port", required_argument, 0, 'p'},
{"wdir", required_argument, 0, 'w'},