/*
   Etherape
   * 
   *  File copied from mtr. (www.bitwizard.nl/mtr) 
   *  Copyright (C) 1997,1998  Matt Kimball

   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.
 */

/*  Prototypes for dns.c  */

/* initialize dns interface */
void direct_open (void);

/* close dns interface */
void direct_close(void);

/* returns 1 if the current dns implementation has a socket wich needs a select() */
int direct_hasfd(void);

/* returns the file descriptor associated with dns socket */
int direct_waitfd (void);

/* called when the direct_waitfd socket has available data */
void direct_ack (void);

/* resolves address and returns its fqdn (if the corresponding parameter is nonzero)
   or just the hostname (if fqdn is zero) */
char *direct_lookup (uint32_t address, int fqdn);