/* virt-hostinfo
 * Copyright (C) 2009 Red Hat Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

#include "hostinfod.h"

static void
ping (struct guest_description *hval,
      const char *cmd, apr_array_header_t *args)
{
  const char *echodata;
  size_t i, len;

  if (get_args (args, "s", &echodata) == -1) {
    warning ("%s: %s: wrong number or type of arguments", hval->name,
	     __func__);
    send_error (hval, 400);
    return;
  }
  len = strlen (echodata);
  if (len < 1 || len > 16) {
    send_error (hval, 400);
    return;
  }

  for (i = 0; i < len; ++i)
    if (!((echodata[i] >= 'a' && echodata[i] <= 'z') ||
	  (echodata[i] >= 'A' && echodata[i] <= 'Z') ||
	  (echodata[i] >= '0' && echodata[i] <= '9'))) {
      send_error (hval, 400);
      return;
    }

  send_reply (hval, 200, "%s", echodata);
}
REGISTER_COMMAND (ping)