/** * \addtogroup resolv * @{ *//** * \file * DNS resolver code header file. * \author Adam Dunkels <adam@dunkels.com> *//* * Copyright (c) 2002-2003, Adam Dunkels. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote *    products derived from this software without specific prior *    written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This file is part of the uIP TCP/IP stack. * * $Id: resolv.h,v 1.4 2006/06/11 21:46:37 adam Exp $ * */#ifndef __RESOLV_H__#define __RESOLV_H__typedef int uip_udp_appstate_t;void resolv_appcall(void);#define UIP_UDP_APPCALL resolv_appcall#include "uipopt.h"/** * Callback function which is called when a hostname is found. * * This function must be implemented by the module that uses the DNS * resolver. It is called when a hostname is found, or when a hostname * was not found. * * \param name A pointer to the name that was looked up.  \param * ipaddr A pointer to a 4-byte array containing the IP address of the * hostname, or NULL if the hostname could not be found. */void resolv_found(char *name, u16_t *ipaddr);/* Functions. */void resolv_conf(u16_t *dnsserver);u16_t *resolv_getserver(void);void resolv_init(void);u16_t *resolv_lookup(char *name);void resolv_query(char *name);#endif /* __RESOLV_H__ *//** @} */