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.
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include "hash.h"
  #include "uthash.h"
  
  static struct my_opts {
  	char *name;		// key
  	char *value;
  	UT_hash_handle hh;
  } *globalopts = NULL;
  
  /*
   * Add a key/value pair to the hash.
   */
  
  void p_add(char *name, char *value)
  {
  	struct my_opts *mo;
  
  	mo = (struct my_opts *)malloc(sizeof(struct my_opts));
  	if (mo == NULL) {
  		return;
  	}
  	mo->name = _strdup(name);
  	mo->value = _strdup(value);
  
  	HASH_ADD_KEYPTR(hh, globalopts, mo->name, strlen(mo->name), mo);
  }
  
  /*
   * Recursively free the hash
   */
  
  void p_freeall()
  {
  	struct my_opts *mo, *tmp;
  
  	HASH_ITER(hh, globalopts, mo, tmp) {
  		if (mo->value)
  			free(mo->value);
  		if (mo->name)
  			free(mo->name);
  		HASH_DEL(globalopts, mo);
  	}
  }
  
  /*
   * Return value for key or NULL.
   * Returned value MUST NOT be freed by caller.
   */
  
  char *p_stab(const char *key)
  {
  	struct my_opts *mo;
  
  	HASH_FIND_STR(globalopts, key, mo);
  
  	return ( (mo) ? mo->value : NULL);
  }
  
  void p_dump()
  {
  	struct my_opts *mo, *tmp;
  
  	HASH_ITER(hh, globalopts, mo, tmp) {
  		printf("-> %s=%s\n", mo->name, mo->value);
  	}
  }
  