/*

  *  Copyright (C) 2008 Sourcefire, Inc.
  *
  *  Authors: Alberto Wu

  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  *
  *  This program 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 General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  *  MA 02110-1301, USA.
  */
 
 #ifndef __EXPLODE_H
 #define __EXPLODE_H
 
 #include "cltypes.h"
 
 enum {
   EXPLODE_EBUFF,
   EXPLODE_ESTREAM
 };
 
 #define EXPLODE_OK EXPLODE_EBUFF
 
 enum XPL_STATE {
   GRABLITS,
   GRABLENS,
   GRABDISTS,
   EXPLODE,
   EXPLODE_LITCODES,
   EXPLODE_LITS,
   EXPLODE_BASEDIST,
   EXPLODE_DECODEDISTS,
   EXPLODE_DECODELENS,
   EXPLODE_DECODEEXTRA,
   EXPLODE_WBYTE,
   EXPLODE_BACKCOPY
 };
 
 struct xplstate {
   uint8_t *next_in;
   uint8_t *next_out;
   unsigned int got;
   unsigned int minlen;
   unsigned int mask;
   unsigned int cur;
   uint32_t lit_tree[256];
   uint32_t len_tree[64];
   uint32_t dist_tree[64];
   uint32_t bitmap;
   uint32_t avail_in;
   uint32_t avail_out;
   uint16_t backbytes;
   uint16_t backsize;
   uint8_t window[8192];

   enum XPL_STATE state;

   uint8_t bits;
   uint8_t largewin;
   uint8_t litcodes;
 };
 

 int explode_init(struct xplstate *, uint16_t);

 int explode(struct xplstate *);

 void explode_shutdown(void);

 
 #endif /* __EXPLODE_H */