iter_resptype.h

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/*
 * iterator/iter_resptype.h - response type information and classification.
 *
 * Copyright (c) 2007, NLnet Labs. All rights reserved.
 *
 * This software is open source.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * 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.
 * 
 * Neither the name of the NLNET LABS nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 COPYRIGHT
 * HOLDER OR CONTRIBUTORS 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.
 */

 
#ifndef ITERATOR_ITER_RESPTYPE_H
#define ITERATOR_ITER_RESPTYPE_H
struct dns_msg;
struct query_info;
struct delegpt;

enum response_type {
    RESPONSE_TYPE_UNTYPED   = 0,

    RESPONSE_TYPE_ANSWER,

    RESPONSE_TYPE_REFERRAL,

    RESPONSE_TYPE_CNAME,

    RESPONSE_TYPE_THROWAWAY,

    RESPONSE_TYPE_LAME,

    RESPONSE_TYPE_REC_LAME
};

enum response_type response_type_from_cache(struct dns_msg* msg, 
    struct query_info* request);

enum response_type response_type_from_server(int rdset, 
    struct dns_msg* msg, struct query_info* request, struct delegpt* dp);
 
#endif /* ITERATOR_ITER_RESPTYPE_H */