text: /*
   * Copyright (c) 2011 and 2012, Dustin Lundquist <dustin@null-ptr.net>
   * Copyright (c) 2011 Manuel Kasper <mk@neon1.net>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice,
   *    this list of conditions and the following disclaimer.
   * 2. 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.
   *
   * 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 BACKEND_H
  #define BACKEND_H
  
  #include <sys/queue.h>
  #include <pcre.h>
  #include "address.h"
  
  STAILQ_HEAD(Backend_head, Backend);
  
  struct Backend {
      char *pattern;
      struct Address *address;
      int use_proxy_header;
  
      int use_http_proxy;
      struct Address *proxy_target_address;
  
      /* Runtime fields */
      pcre *pattern_re;
      STAILQ_ENTRY(Backend) entries;
  };
  
  void add_backend(struct Backend_head *, struct Backend *);
  int init_backend(struct Backend *);
  struct Backend *lookup_backend(const struct Backend_head *, const char *, size_t);
  void print_backend_config(FILE *, const struct Backend *);
  void remove_backend(struct Backend_head *, struct Backend *);
  struct Backend *new_backend();
  int accept_backend_arg(struct Backend *, const char *);
  
  
  #endif
  