static void usage(const char *program_name) {
fprintf(stdout, "\n");
fprintf(stdout, "USAGE: %s [-options]\n", program_name);
fprintf(stdout, "\n");
fprintf(stdout, " General Options:\n");
fprintf(stdout, " -? You're reading it.\n");
fprintf(stdout, " -v Verbose output.\n");
// fprintf(stdout, " -V Version and compiled in options.\n");
fprintf(stdout, " -i <iface> Interface to sniff from.\n");
fprintf(stdout, " -f <format> Output format line. See Format options.\n");
fprintf(stdout, " -b <bfp> Berkley packet filter.\n");
fprintf(stdout, " -d <dir> Directory to write session files to.\n");
fprintf(stdout, " -D Enable daemon mode.\n");
fprintf(stdout, " -u <user> User to drop priveleges to after daemonising.\n");
fprintf(stdout, " -g <group> Group to drop priveleges to after daemonising.\n");
fprintf(stdout, " -T <dir> Direct to chroot into.\n");
fprintf(stdout, " -P <path> Path to PID file (/var/run).\n");
fprintf(stdout, " -p <file> Name of pidfile (cxtracker.pid).\n");
fprintf(stdout, " -r <pcap> PCAP file to read.\n");
fprintf(stdout, " -w <name> Dump PCAP to file with specified prefix.\n");
fprintf(stdout, " -F Flush output after every write to dump file.\n");
fprintf(stdout, " -s <bytes> Roll over dump file based on size.\n");
fprintf(stdout, " -t <interval> Roll over dump file based on time intervals.\n");
fprintf(stdout, "\n");
fprintf(stdout, " Long Options:\n");
fprintf(stdout, " --help Same as '?'\n");
// fprintf(stdout, " --version Same as 'V'\n");
fprintf(stdout, " --interface Same as 'i'\n");
fprintf(stdout, " --format Same as 'f'\n");
fprintf(stdout, " --bpf Same as 'b'\n");
fprintf(stdout, " --log-dir Same as 'd'\n");
fprintf(stdout, " --daemonize Same as 'D'\n");
fprintf(stdout, " --user Same as 'u'\n");
fprintf(stdout, " --group Same as 'g'\n");
fprintf(stdout, " --chroot-dir Same as 'T'\n");
fprintf(stdout, " --pid-file Same as 'p'\n");
fprintf(stdout, " --pcap-file Same as 'r'\n");
fprintf(stdout, "\n");
format_options();
}
void parse_args(int argc, char **argv,
struct _options *options, struct _flags *flags)
{
options->dsn = G_define_option();
options->dsn->key = "output";
options->dsn->type = TYPE_STRING;
options->dsn->label = _("Name of output directory or OGR or PostGIS data source");
options->dsn->description = _("Examples:\n"
"\t\tESRI Shapefile: directory containing a shapefile\n"
"\t\tMapInfo File: directory containing a mapinfo file\n"
"\t\tPostGIS database: connection string, eg. 'PG:dbname=db user=grass'");
options->dsn->required = NO;
options->dsn->guisection = _("Settings");
options->format = G_define_option();
options->format->key = "format";
options->format->description = _("Format for output vector data");
options->format->required = NO;
options->format->type = TYPE_STRING;
options->format->options = format_options();
#ifdef HAVE_OGR
options->format->answer = "ESRI_Shapefile";
#else
#ifdef HAVE_POSTGRES
options->format->answer = "PostgreSQL";
#endif /* HAVE_POSTGRES */
#endif /* HAVE_OGR */
options->format->guisection = _("Settings");
options->opts = G_define_option();
options->opts->key = "options";
options->opts->label = _("Creation options");
options->opts->description = _("Examples:\n"
"\t\t'SHPT=POINTZ': create 3D point Shapefile data\n"
"\t\t'GEOM_TYPE=geography': use geography PostGIS data\n"
"\t\t'SCHEMA=grass': create new PostGIS tables in 'grass' schema");
options->opts->required = NO;
options->opts->multiple = YES;
options->opts->type = TYPE_STRING;
options->opts->guisection = _("Settings");
options->input = G_define_standard_option(G_OPT_F_INPUT);
options->input->key = "loadsettings";
options->input->required = NO;
options->input->description = _("Name of input file to read settings from");
options->input->guisection = _("Settings");
options->output = G_define_standard_option(G_OPT_F_OUTPUT);
options->output->key = "savesettings";
options->output->required = NO;
options->output->description = _("Name for output file where to save current settings");
flags->f = G_define_flag();
flags->f->key = 'f';
flags->f->description = _("List supported formats and exit");
flags->f->guisection = _("Print");
flags->f->suppress_required = YES;
flags->r = G_define_flag();
flags->r->key = 'r';
flags->r->description = _("Cease using OGR/PostGIS, revert to native output and exit");
flags->r->suppress_required = YES;
flags->r->guisection = _("Native");
flags->p = G_define_flag();
flags->p->key = 'p';
flags->p->description = _("Print current status");
flags->p->guisection = _("Print");
flags->p->suppress_required = YES;
flags->g = G_define_flag();
flags->g->key = 'g';
flags->g->description = _("Print current status in shell script style");
flags->g->guisection = _("Print");
flags->g->suppress_required = YES;
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
/* check options */
if (options->dsn->answer && options->format->answer &&
options->input->answer)
G_fatal_error(_("%s= and %s=/%s= are mutually exclusive"),
options->input->key,
options->dsn->key, options->format->key);
if (flags->f->answer || flags->p->answer || flags->r->answer || flags->g->answer ||
options->output->answer)
return;
if (!options->dsn->answer && !options->input->answer)
G_fatal_error(_("%s= or %s= must be specified"),
options->dsn->key, options->input->key);
if (options->dsn->answer && !options->format->answer)
G_fatal_error(_("%s= must be specified"),
options->format->key);
}
