msgencode.h

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/*
 * util/data/msgencode.h - encode compressed DNS messages.
 *
 * 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 UTIL_DATA_MSGENCODE_H
#define UTIL_DATA_MSGENCODE_H
struct sldns_buffer;
struct query_info;
struct reply_info;
struct regional;
struct edns_data;

int reply_info_answer_encode(struct query_info* qinf, struct reply_info* rep, 
    uint16_t id, uint16_t qflags, struct sldns_buffer* dest, time_t timenow,
    int cached, struct regional* region, uint16_t udpsize, 
    struct edns_data* edns, int dnssec, int secure);

int reply_info_encode(struct query_info* qinfo, struct reply_info* rep, 
    uint16_t id, uint16_t flags, struct sldns_buffer* buffer, time_t timenow, 
    struct regional* region, uint16_t udpsize, int dnssec);

void qinfo_query_encode(struct sldns_buffer* pkt, struct query_info* qinfo);

uint16_t calc_edns_field_size(struct edns_data* edns);

void attach_edns_record(struct sldns_buffer* pkt, struct edns_data* edns);

void error_encode(struct sldns_buffer* pkt, int r, struct query_info* qinfo,
    uint16_t qid, uint16_t qflags, struct edns_data* edns);
 
#endif /* UTIL_DATA_MSGENCODE_H */