text: /*
   * Copyright (c) 2013 Jan-Piet Mens <jp@mens.de>
   * 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.
   * 3. Neither the name of mosquitto nor the names of its
   *    contributors may be used to endorse or promote products derived from
   *    this software without specific prior written permission.
   * 
   * 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 OWNER 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.
   */
  
  #ifdef BE_SQLITE
  
  #include <sqlite3.h>
  
  struct stmt_query{
  	sqlite3_stmt *stmt;
  	char * query;
  	size_t query_length;
  };
  
  struct sqlite_backend {
  	sqlite3 *sq;
  	struct stmt_query *user;
  	struct stmt_query *acl;
  };
  
  void *be_sqlite_init();
  void be_sqlite_destroy(void *handle);
  int be_sqlite_getuser(void *handle, const char *username, const char *password, char **phash, const char *clientid);
  int be_sqlite_access(void *handle, const char *username, char *topic);
  int be_sqlite_superuser(void *handle, const char *username);
  int be_sqlite_aclcheck(void *handle, const char *clientid, const char *username, const char *topic, int acc);
  #endif /* BE_SQLITE */
  