/*****************************************************************************
   Major portions of this software are copyrighted by the Medical College
   of Wisconsin, 1994-2000, and are released under the Gnu General Public
   License, Version 2.  See the file README.Copyright for details.
******************************************************************************/
   
#ifndef _MCW_COMPRESSOR_
#define _MCW_COMPRESSOR_

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>

#include "mcw_malloc.h"

#ifdef  __cplusplus
extern "C" {                    /* care of Greg Balls    7 Aug 2006 [rickr] */
#endif

#define COMPRESS_NOFILE    -666
#define COMPRESS_NONE      -1
#define COMPRESS_GZIP       0
#define COMPRESS_BZIP2      1
#define COMPRESS_COMPRESS   2

/* PJR 07/22/98- adding brikcomp decompression to afni.
   Compression with brikcomp is not supported because it needs the header information. */
#define COMPRESS_BRIKCOMP   3

#define COMPRESS_LASTCODE   3

static char * COMPRESS_suffix[]     = { ".gz" , ".bz2" , ".Z", ".briz" } ;
static int    COMPRESS_suffix_len[] = { 3    , 4       , 2    , 5} ;

static char * COMPRESS_program[]    = { "gzip -1c > '%s'"  ,
                                        "bzip2 -1c > '%s'" ,
                                        "compress > '%s'"  ,
                                        "cat > '%s'"} ;         /* shouldn't be called */

static int    COMPRESS_program_ok[] = { 1 , 1 , 1 , 0 } ;     /* RWCox 03 Aug 1998 */

static char * COMPRESS_unprogram[]  = { "gzip -dc '%s'"  ,
                                        "bzip2 -dc '%s'" ,
                                        "uncompress -c '%s'",
                                        "brikcomp -c '%s'" } ;

static char * COMPRESS_enviro[] = { "GZIP" , "BZIP2" , "COMPRESS" , "BRIKCOMP" } ;

#define   NUM_COMPRESS_elist 3 
static char * COMPRESS_elist[] = { "GZIP" , "BZIP2" , "COMPRESS" } ;

/*---------- prototypes ----------*/

extern int COMPRESS_is_file( char * pathname ) ;
extern int COMPRESS_has_suffix( char * fname , int mode ) ;
extern int COMPRESS_filecode( char * fname ) ;
extern int COMPRESS_fclose( FILE * fp ) ;
extern FILE * COMPRESS_fopen_read( char * fname ) ;
extern FILE * COMPRESS_fopen_write( char * fname , int mm ) ;

extern char * COMPRESS_filename( char * fname ) ; /* Feb 1998 */
extern int COMPRESS_unlink( char * fname ) ;      /* Feb 1998 */

extern char * COMPRESS_add_suffix( char * fname , int mode ) ; /* May 1998 */

#ifdef  __cplusplus
}
#endif

#endif