text: /*
   * Copyright (c) 2002-2012 Balabit
   * Copyright (c) 1998-2012 Balázs Scheidler
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   *
   * As an additional exemption you are allowed to compile & link against the
   * OpenSSL libraries as published by the OpenSSL project. See the file
   * COPYING for details.
   *
   */
  
  
  #ifndef DNSCACHE_H_INCLUDED
  #define DNSCACHE_H_INCLUDED
  
  #include "syslog-ng.h"
  
  typedef struct
  {
    gint cache_size;
    gint expire;
    gint expire_failed;
    gchar *hosts;
  } DNSCacheOptions;
  
  typedef struct _DNSCache DNSCache;
  
  void dns_cache_store_persistent(DNSCache *self, gint family, void *addr, const gchar *hostname);
  void dns_cache_store_dynamic(DNSCache *self, gint family, void *addr, const gchar *hostname, gboolean positive);
  gboolean dns_cache_lookup(DNSCache *self, gint family, void *addr, const gchar **hostname, gsize *hostname_len, gboolean *positive);
  DNSCache *dns_cache_new(const DNSCacheOptions *options);
  void dns_cache_free(DNSCache *self);
  
  void dns_cache_options_defaults(DNSCacheOptions *options);
  void dns_cache_options_destroy(DNSCacheOptions *options);
  
  gboolean dns_caching_lookup(gint family, void *addr, const gchar **hostname, gsize *hostname_len, gboolean *positive);
  void dns_caching_store(gint family, void *addr, const gchar *hostname, gboolean positive);
  void dns_caching_update_options(const DNSCacheOptions *dns_cache_options);
  
  void dns_caching_thread_init(void);
  void dns_caching_thread_deinit(void);
  void dns_caching_global_init(void);
  void dns_caching_global_deinit(void);
  
  
  #endif
  