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81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
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/*
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* iterator/iter_utils.c - iterative resolver module utility functions.
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*
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* Copyright (c) 2007, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This file contains functions to assist the iterator module.
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* Configuration options. Forward zones.
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*/
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#include "config.h"
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#include "iterator/iter_utils.h"
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#include "iterator/iterator.h"
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#include "util/net_help.h"
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#include "util/log.h"
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#include "util/config_file.h"
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int
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iter_apply_cfg(struct iter_env* iter_env, struct config_file* cfg)
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{
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int i;
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/* target fetch policy */
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iter_env->max_dependency_depth = 4;
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iter_env->target_fetch_policy = (int*)calloc(
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(size_t)iter_env->max_dependency_depth+1, sizeof(int));
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if(iter_env->max_dependency_depth >= 1)
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iter_env->target_fetch_policy[1] = 3;
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if(iter_env->max_dependency_depth >= 2)
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iter_env->target_fetch_policy[2] = 1;
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/* TODO read setting from config */
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if(!iter_env->target_fetch_policy)
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return 0;
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for(i=0; i<iter_env->max_dependency_depth+1; i++)
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verbose(VERB_DETAIL, "target fetch policy for level %d is %d",
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i, iter_env->target_fetch_policy[i]);
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/* forwarder address */
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if(cfg->fwd_address && cfg->fwd_address[0]) {
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if(!ipstrtoaddr(cfg->fwd_address, cfg->fwd_port,
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&iter_env->fwd_addr, &iter_env->fwd_addrlen)) {
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log_err("iterator: could not set forwarder address");
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return 0;
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}
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verbose(VERB_ALGO, "iterator: fwd queries to: %s %d",
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cfg->fwd_address, cfg->fwd_port);
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}
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return 1;
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}
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