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   1  /* $Id: lzx.h 6648 2011-11-25 14:41:53Z dbo $ */
   2  /***************************************************************************
   3   *                        lzx.h - LZX decompression routines               *
   4   *                           -------------------                           *
   5   *                                                                         *
   6   *  maintainer: Jed Wing <jedwin@ugcs.caltech.edu>                         *
   7   *  source:     modified lzx.c from cabextract v0.5                        *
   8   *  notes:      This file was taken from cabextract v0.5, which was,       *
   9   *              itself, a modified version of the lzx decompression code   *
  10   *              from unlzx.                                                *
  11   ***************************************************************************/
  12  
  13  /***************************************************************************
  14   *                                                                         *
  15   *   This program is free software; you can redistribute it and/or modify  *
  16   *   it under the terms of the GNU General Public License as published by  *
  17   *   the Free Software Foundation; either version 2 of the License, or     *
  18   *   (at your option) any later version.  Note that an exemption to this   *
  19   *   license has been granted by Stuart Caie for the purposes of           *
  20   *   distribution with chmlib.  This does not, to the best of my           *
  21   *   knowledge, constitute a change in the license of this (the LZX) code  *
  22   *   in general.                                                           *
  23   *                                                                         *
  24   ***************************************************************************/
  25  
  26  #ifndef INCLUDED_LZX_H
  27  #define INCLUDED_LZX_H
  28  
  29  #ifdef __cplusplus
  30  extern "C" {
  31  #endif
  32  
  33  /* return codes */
  34  #define DECR_OK           (0)
  35  #define DECR_DATAFORMAT   (1)
  36  #define DECR_ILLEGALDATA  (2)
  37  #define DECR_NOMEMORY     (3)
  38  
  39  /* opaque state structure */
  40  struct LZXstate;
  41  
  42  /* create an lzx state object */
  43  struct LZXstate *LZXinit(int window);
  44  
  45  /* destroy an lzx state object */
  46  void LZXteardown(struct LZXstate *pState);
  47  
  48  /* reset an lzx stream */
  49  int LZXreset(struct LZXstate *pState);
  50  
  51  /* decompress an LZX compressed block */
  52  int LZXdecompress(struct LZXstate *pState,
  53                    unsigned char *inpos,
  54                    unsigned char *outpos,
  55                    long long inlen,
  56                    unsigned long outlen);
  57  
  58  #ifdef __cplusplus
  59  }
  60  #endif
  61  
  62  #endif /* INCLUDED_LZX_H */