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127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/*
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* util/config_file.h - reads and stores the config file for unbound.
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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 for the config file.
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*/
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#ifndef UTIL_CONFIG_FILE_H
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#define UTIL_CONFIG_FILE_H
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/**
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* The configuration options.
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* Strings are malloced.
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*/
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struct config_file {
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/** verbosity level as specified in the config file */
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int verbosity;
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/** number of threads to create */
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int num_threads;
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/** port on which queries are answered. */
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int port;
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/** do ip4 query support. */
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int do_ip4;
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/** do ip6 query support. */
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int do_ip6;
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/** do udp query support. */
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int do_udp;
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/** do tcp query support. */
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int do_tcp;
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/** outgoing port range base number */
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int outgoing_base_port;
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/** outgoing port range number of ports (per thread, per if) */
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int outgoing_num_ports;
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/** forwarder address. string. If not NULL fwder mode is enabled. */
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char* fwd_address;
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/** forwarder port */
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int fwd_port;
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/** chrootdir, if not "" or chroot will be done */
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char* chrootdir;
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/** username to change to, if not "". */
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char* username;
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/** daemonize, i.e. fork into the background. */
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int do_daemonize;
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};
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/**
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* Create config file structure. Filled with default values.
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* @return: the new structure or NULL on memory error.
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*/
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struct config_file* config_create();
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/**
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* Read the config file from the specified filename.
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* @param config: where options are stored into, must be freshly created.
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* @param filename: name of configfile. If NULL nothing is done.
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* @return: false on error.
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*/
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int config_read(struct config_file* config, const char* filename);
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/**
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* Destroy the config file structure.
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* @param config: to delete.
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*/
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void config_delete(struct config_file* config);
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/**
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* Used during options parsing
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*/
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struct config_parser_state {
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/** name of file being parser */
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char* filename;
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/** line number in the file, starts at 1 */
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int line;
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/** number of errors encountered */
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int errors;
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/** the result of parsing is stored here. */
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struct config_file* cfg;
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};
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/** global config parser object used during config parsing */
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extern struct config_parser_state* cfg_parser;
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/** parsing helpers: print error with file and line numbers. */
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void ub_c_error(const char* msg);
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/** parsing helpers: print error with file and line numbers. */
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void ub_c_error_msg(const char* fmt, ...) ATTR_FORMAT(printf, 1, 2);
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#endif /* UTIL_CONFIG_FILE_H */
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