static struct option long_options[] = {
{"version", 0, 0, OPT_VERSION},
{"server", 0, 0, OPT_SERVER},
{"sender", 0, 0, OPT_SENDER},
{"delete", 0, 0, OPT_DELETE},
static struct option long_options[] = {
{"version", 0, 0, OPT_VERSION},
{"server", 0, 0, OPT_SERVER},
{"sender", 0, 0, OPT_SENDER},
{"delete", 0, 0, OPT_DELETE},