alpar@9: /* gzguts.h (zlib internal header definitions for gz* operations) */
alpar@9: 
alpar@9: /* Modified by Andrew Makhorin <mao@gnu.org>, April 2011 */
alpar@9: 
alpar@9: /* Copyright (C) 2004, 2005, 2010 Mark Adler
alpar@9:  * For conditions of distribution and use, see copyright notice in
alpar@9:  * zlib.h */
alpar@9: 
alpar@9: /* WARNING: this file should *not* be used by applications. It is
alpar@9:    part of the implementation of the compression library and is
alpar@9:    subject to change. Applications should only use zlib.h. */
alpar@9: 
alpar@9: #ifndef GZGUTS_H
alpar@9: #define GZGUTS_H
alpar@9: 
alpar@9: #define ZLIB_INTERNAL
alpar@9: 
alpar@9: #include <errno.h>
alpar@9: #include <limits.h>
alpar@9: #include <stdio.h>
alpar@9: #include <stdlib.h>
alpar@9: #include <string.h>
alpar@9: #include "zio.h"
alpar@9: #include "zlib.h"
alpar@9: 
alpar@9: #define local static
alpar@9: 
alpar@9: #define zstrerror() strerror(errno)
alpar@9: 
alpar@9: #define GZBUFSIZE 8192
alpar@9: 
alpar@9: #define GZ_NONE 0
alpar@9: #define GZ_READ 7247
alpar@9: #define GZ_WRITE 31153
alpar@9: #define GZ_APPEND 1
alpar@9: 
alpar@9: #define LOOK 0
alpar@9: #define COPY 1
alpar@9: #define GZIP 2
alpar@9: 
alpar@9: typedef struct
alpar@9: {     int mode;
alpar@9:       int fd;
alpar@9:       char *path;
alpar@9:       z_off64_t pos;
alpar@9:       unsigned size;
alpar@9:       unsigned want;
alpar@9:       unsigned char *in;
alpar@9:       unsigned char *out;
alpar@9:       unsigned char *next;
alpar@9:       unsigned have;
alpar@9:       int eof;
alpar@9:       z_off64_t start;
alpar@9:       z_off64_t raw;
alpar@9:       int how;
alpar@9:       int direct;
alpar@9:       int level;
alpar@9:       int strategy;
alpar@9:       z_off64_t skip;
alpar@9:       int seek;
alpar@9:       int err;
alpar@9:       char *msg;
alpar@9:       z_stream strm;
alpar@9: } gz_state;
alpar@9: 
alpar@9: typedef gz_state *gz_statep;
alpar@9: 
alpar@9: void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));
alpar@9: 
alpar@9: #define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)
alpar@9: 
alpar@9: #endif
alpar@9: 
alpar@9: /* eof */