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# resolv.h

    00001 /**
    00002  * \addtogroup resolv
    00003  * @{
    00004  */
    00005 /**
    00006  * \file
    00007  * DNS resolver code header file.
    00008  * \author Adam Dunkels <adam@dunkels.com>
    00009  */
    00010
    00011 /*
    00012  * Copyright (c) 2002-2003, Adam Dunkels.
    00013  * All rights reserved.
    00014  *
    00015  * Redistribution and use in source and binary forms, with or without
    00016  * modification, are permitted provided that the following conditions
    00017  * are met:
    00018  * 1. Redistributions of source code must retain the above copyright
    00019  *    notice, this list of conditions and the following disclaimer.
    00020  * 2. Redistributions in binary form must reproduce the above copyright
    00021  *    notice, this list of conditions and the following disclaimer in the
    00022  *    documentation and/or other materials provided with the distribution.
    00023  * 3. The name of the author may not be used to endorse or promote
    00024  *    products derived from this software without specific prior
    00025  *    written permission.
    00026  *
    00027  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
    00028  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    00029  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    00030  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
    00031  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    00032  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
    00033  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    00034  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
    00035  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    00036  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    00037  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00038  *
    00039  * This file is part of the uIP TCP/IP stack.
    00040  *
    00041  * $Id: resolv.h,v 1.4 2006/06/11 21:46:37 adam Exp $
    00042  *
    00043  */
    00044 #ifndef __RESOLV_H__
    00045 #define __RESOLV_H__
    00046
    00047 typedef int uip_udp_appstate_t;
    00048 void resolv_appcall(void);
    00049 #define UIP_UDP_APPCALL resolv_appcall
    00050
    00051 #include "uipopt.h"
    00052
    00053 /**
    00054  * Callback function which is called when a hostname is found.
    00055  *
    00056  * This function must be implemented by the module that uses the DNS
    00057  * resolver. It is called when a hostname is found, or when a hostname
    00058  * was not found.
    00059  *
    00060  * \param name A pointer to the name that was looked up.  \param
    00061  * ipaddr A pointer to a 4-byte array containing the IP address of the
    00062  * hostname, or NULL if the hostname could not be found.
    00063  */
    00064 void resolv_found(char *name, u16_t *ipaddr);
    00065
    00066 /* Functions. */
    00067 void resolv_conf(u16_t *dnsserver);
    00068 u16_t *resolv_getserver(void);
    00069 void resolv_init(void);
    00070 u16_t *resolv_lookup(char *name);
    00071 void resolv_query(char *name);
    00072
    00073 #endif /* __RESOLV_H__ */
    00074
    00075 /** @} */