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* ausearch-string.h - Header file for ausearch-string.c
* Copyright (c) 2005,2008 Red Hat Inc., Durham, North Carolina.
* All Rights Reserved.
* This software may be freely redistributed and/or modified under the
* terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2, 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
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* Authors:
*   Steve Grubb <sgrubb@redhat.com>


#include "config.h"
#include <sys/types.h>
#include "libaudit.h"

/* This is the node of the linked list. message & item are the only elements
 * at this time. Any data elements that are per item goes here. */
typedef struct _snode{
  char *str;            // The string
  char *key;            // The key string
  unsigned int hits;    // Number of times this string was attempted to be added
  struct _snode* next;  // Next string node pointer
} snode;

/* This is the linked list head. Only data elements that are 1 per
 * event goes here. */
typedef struct {
  snode *head;          // List head
  snode *cur;           // Pointer to current node
  unsigned int cnt;     // How many items in this list
} slist;

void slist_create(slist *l);
static inline void slist_first(slist *l) { l->cur = l->head; }
void slist_last(slist *l);
snode *slist_next(slist *l);
static inline snode *slist_get_cur(slist *l) { return l->cur; }
void slist_append(slist *l, snode *node);
void slist_clear(slist* l);

/* append a string if its not already on the list */
int slist_add_if_uniq(slist *l, const char *str);
void slist_sort_by_hits(slist *l);


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