Logo Search packages:      
Sourcecode: ksh version File versions

pax-compress.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*           Copyright (c) 1987-2007 AT&T Knowledge Ventures            *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                      by AT&T Knowledge Ventures                      *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                                                                      *
***********************************************************************/
#pragma prototyped

/*
 * pax compress format
 */

#include "format.h"

static int
compress_getprologue(Pax_t* pax, Format_t* fp, Archive_t* ap, File_t* f, unsigned char* buf, size_t size)
{
      if (size < 2 || buf[0] != 0x1f || buf[1] != 0x9d)
            return 0;
      ap->uncompressed = ap->io->size * 3;
      return 1;
}

static Compress_format_t      pax_compress_data =
{
      0,
      { 0 },
      { "zcat" },
};

Format_t    pax_compress_format =
{
      "compress",
      0,
      "Lempel-Ziv compression",
      0,
      COMPRESS|IN|OUT,
      0,
      0,
      0,
      PAXNEXT(pax_compress_next),
      &pax_compress_data,
      0,
      compress_getprologue,
};

PAXLIB(&pax_compress_format)

Generated by  Doxygen 1.6.0   Back to index