source: bootcd/isolinux/syslinux-6.03/gpxe/src/hci/commands/config_cmd.c

#include <string.h>
#include <stdio.h>
#include <gpxe/command.h>
#include <gpxe/settings.h>
#include <gpxe/settings_ui.h>

FILE_LICENCE ( GPL2_OR_LATER );

static int config_exec ( int argc, char **argv ) {
        char *settings_name;
        struct settings *settings;
        int rc;

        if ( argc > 2 ) {
                printf ( "Usage: %s [scope]\n"
                         "Opens the option configuration console\n", argv[0] );
                return 1;
        }

        settings_name = ( ( argc == 2 ) ? argv[1] : "" );
        settings = find_settings ( settings_name );
        if ( ! settings ) {
                printf ( "No such scope \"%s\"\n", settings_name );
                return 1;
        }

        if ( ( rc = settings_ui ( settings ) ) != 0 ) {
                printf ( "Could not save settings: %s\n",
                         strerror ( rc ) );
                return 1;
        }

        return 0;
}

struct command config_command __command = {
        .name = "config",
        .exec = config_exec,
};