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/* Copyright (C) 2022 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdbool.h>
#include <stdio.h>
#include "knot/zone/zone.h"
#include "knot/zone/semantic-check.h"
#include "libzscanner/scanner.h"
/*!
* \brief Zone creator structure.
*/
typedef struct zcreator {
zone_contents_t *z; /*!< Created zone. */
bool master; /*!< True if server is a primary master for the zone. */
int ret; /*!< Return value. */
} zcreator_t;
/*!
* \brief Zone loader structure.
*/
typedef struct {
char *source; /*!< Zone source file. */
semcheck_optional_t semantic_checks; /*!< Do semantic checks. */
sem_handler_t *err_handler; /*!< Semantic checks error handler. */
zcreator_t *creator; /*!< Loader context. */
zs_scanner_t scanner; /*!< Zone scanner. */
time_t time; /*!< time for zone check. */
} zloader_t;
void err_handler_logger(sem_handler_t *handler, const zone_contents_t *zone,
const knot_dname_t *node, sem_error_t error, const char *data);
/*!
* \brief Open zone file for loading.
*
* \param loader Output zone loader.
* \param source Source file name.
* \param origin Zone origin.
* \param semantic_checks Perform semantic checks.
* \param time Time for semantic check.
*
* \retval Initialized loader on success.
* \retval NULL on error.
*/
int zonefile_open(zloader_t *loader, const char *source,
const knot_dname_t *origin, semcheck_optional_t semantic_checks, time_t time);
/*!
* \brief Loads zone from a zone file.
*
* \param loader Zone loader instance.
*
* \retval Loaded zone contents on success.
* \retval NULL otherwise.
*/
zone_contents_t *zonefile_load(zloader_t *loader);
/*!
* \brief Checks if zonefile exists.
*
* \param path Zonefile path.
* \param mtime Zonefile mtime if exists (can be NULL).
*
* \return KNOT_E*
*/
int zonefile_exists(const char *path, struct timespec *mtime);
/*!
* \brief Write zone contents to zone file.
*/
int zonefile_write(const char *path, zone_contents_t *zone);
/*!
* \brief Close zone file loader.
*
* \param loader Zone loader instance.
*/
void zonefile_close(zloader_t *loader);
/*!
* \brief Adds one RR into zone.
*
* \param zl Zone loader.
* \param rr RR to add.
*
* \return KNOT_E*
*/
int zcreator_step(zcreator_t *zl, const knot_rrset_t *rr);
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