zlib.h File Reference

#include "zconf.h"

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Classes
struct	z_stream_s
struct	gz_header_s
struct	internal_state
Defines
#define	ZLIB_VERSION   "1.2.3"
#define	ZLIB_VERNUM   0x1230
#define	Z_NO_FLUSH   0
#define	Z_PARTIAL_FLUSH   1
#define	Z_SYNC_FLUSH   2
#define	Z_FULL_FLUSH   3
#define	Z_FINISH   4
#define	Z_BLOCK   5
#define	Z_OK   0
#define	Z_STREAM_END   1
#define	Z_NEED_DICT   2
#define	Z_ERRNO   (-1)
#define	Z_STREAM_ERROR   (-2)
#define	Z_DATA_ERROR   (-3)
#define	Z_MEM_ERROR   (-4)
#define	Z_BUF_ERROR   (-5)
#define	Z_VERSION_ERROR   (-6)
#define	Z_NO_COMPRESSION   0
#define	Z_BEST_SPEED   1
#define	Z_BEST_COMPRESSION   9
#define	Z_DEFAULT_COMPRESSION   (-1)
#define	Z_FILTERED   1
#define	Z_HUFFMAN_ONLY   2
#define	Z_RLE   3
#define	Z_FIXED   4
#define	Z_DEFAULT_STRATEGY   0
#define	Z_BINARY   0
#define	Z_TEXT   1
#define	Z_ASCII   Z_TEXT
#define	Z_UNKNOWN   2
#define	Z_DEFLATED   8
#define	Z_NULL   0
#define	zlib_version   zlibVersion()
#define	deflateInit(strm, level)   deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
#define	inflateInit(strm)   inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))
#define	deflateInit2(strm, level, method, windowBits, memLevel, strategy)
#define	inflateInit2(strm, windowBits)   inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
#define	inflateBackInit(strm, windowBits, window)
Typedefs
typedef voidpf alloc_func	OF ((voidpf opaque, uInt items, uInt size))
typedef struct z_stream_s	z_stream
typedef z_stream FAR *	z_streamp
typedef struct gz_header_s	gz_header
typedef gz_header FAR *	gz_headerp
typedef voidp	gzFile
Functions
ZEXTERN const char *ZEXPORT zlibVersion	OF ((void))
ZEXTERN int ZEXPORT deflate	OF ((z_streamp strm, int flush))
ZEXTERN int ZEXPORT deflateEnd	OF ((z_streamp strm))
ZEXTERN int ZEXPORT deflateSetDictionary	OF ((z_streamp strm, const Bytef *dictionary, uIntdictLength))
ZEXTERN int ZEXPORT deflateCopy	OF ((z_streamp dest, z_streamp source))
ZEXTERN int ZEXPORT deflateParams	OF ((z_streamp strm, int level, int strategy))
ZEXTERN int ZEXPORT deflateTune	OF ((z_streamp strm, int good_length, int max_lazy, int nice_length, int max_chain))
ZEXTERN uLong ZEXPORT deflateBound	OF ((z_streamp strm, uLong sourceLen))
ZEXTERN int ZEXPORT deflatePrime	OF ((z_streamp strm, int bits, int value))
ZEXTERN int ZEXPORT deflateSetHeader	OF ((z_streamp strm, gz_headerp head))
ZEXTERN int ZEXPORT inflateBack	OF ((z_streamp strm, in_func in, void FAR *in_desc, out_func out, void FAR *out_desc))
ZEXTERN int ZEXPORT compress	OF ((Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen))
ZEXTERN int ZEXPORT compress2	OF ((Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level))
ZEXTERN uLong ZEXPORT compressBound	OF ((uLong sourceLen))
ZEXTERN gzFile ZEXPORT gzopen	OF ((const char *path, const char *mode))
ZEXTERN gzFile ZEXPORT gzdopen	OF ((int fd, const char *mode))
ZEXTERN int ZEXPORT gzsetparams	OF ((gzFile file, int level, int strategy))
ZEXTERN int ZEXPORT gzread	OF ((gzFile file, voidp buf, unsigned len))
ZEXTERN int ZEXPORT gzwrite	OF ((gzFile file, voidpc buf, unsigned len))
ZEXTERN int ZEXPORTVA gzprintf	OF ((gzFile file, const char *format,...))
ZEXTERN int ZEXPORT gzputs	OF ((gzFile file, const char *s))
ZEXTERN char *ZEXPORT gzgets	OF ((gzFile file, char *buf, int len))
ZEXTERN int ZEXPORT gzputc	OF ((gzFile file, int c))
ZEXTERN int ZEXPORT gzgetc	OF ((gzFile file))
ZEXTERN int ZEXPORT gzungetc	OF ((int c, gzFile file))
ZEXTERN int ZEXPORT gzflush	OF ((gzFile file, int flush))
ZEXTERN z_off_t ZEXPORT gzseek	OF ((gzFile file, z_off_t offset, int whence))
ZEXTERN const char *ZEXPORT gzerror	OF ((gzFile file, int *errnum))
ZEXTERN uLong ZEXPORT adler32	OF ((uLong adler, const Bytef *buf, uInt len))
ZEXTERN uLong ZEXPORT adler32_combine	OF ((uLong adler1, uLong adler2, z_off_t len2))
ZEXTERN uLong ZEXPORT crc32	OF ((uLong crc, const Bytef *buf, uInt len))
ZEXTERN uLong ZEXPORT crc32_combine	OF ((uLong crc1, uLong crc2, z_off_t len2))
ZEXTERN int ZEXPORT deflateInit_	OF ((z_streamp strm, int level, const char *version, int stream_size))
ZEXTERN int ZEXPORT inflateInit_	OF ((z_streamp strm, const char *version, int stream_size))
ZEXTERN int ZEXPORT deflateInit2_	OF ((z_streamp strm, intlevel, intmethod, int windowBits, int memLevel, int strategy, const char *version, int stream_size))
ZEXTERN int ZEXPORT inflateInit2_	OF ((z_streamp strm, intwindowBits, const char *version, int stream_size))
ZEXTERN int ZEXPORT inflateBackInit_	OF ((z_streamp strm, int windowBits, unsigned char FAR *window, const char *version, int stream_size))
ZEXTERN const char *ZEXPORT zError	OF ((int))
ZEXTERN int ZEXPORT inflateSyncPoint	OF ((z_streamp z))

---

Define Documentation

#define deflateInit	(		strm,
			level
	)		deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))

Definition at line 1331 of file zlib.h.

Referenced by compress2().

#define deflateInit2	(		strm,
			level,
			method,
			windowBits,
			memLevel,
			strategy
	)

Value:

deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
                      (strategy),           ZLIB_VERSION, sizeof(z_stream))

Definition at line 1335 of file zlib.h.

Referenced by gz_open(), and png_write_IHDR().

#define inflateBackInit	(		strm,
			windowBits,
			window
	)

Value:

inflateBackInit_((strm), (windowBits), (window), \
        ZLIB_VERSION, sizeof(z_stream))

Definition at line 1340 of file zlib.h.

#define inflateInit

(

strm

)

inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))

Definition at line 1333 of file zlib.h.

Referenced by png_create_read_struct_2(), png_read_init_3(), and uncompress().

#define inflateInit2	(		strm,
			windowBits
	)		inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))

Definition at line 1338 of file zlib.h.

Referenced by gz_open().

#define Z_ASCII   Z_TEXT

Definition at line 198 of file zlib.h.

#define Z_BEST_COMPRESSION   9

Definition at line 185 of file zlib.h.

#define Z_BEST_SPEED   1

Definition at line 184 of file zlib.h.

#define Z_BINARY   0

Definition at line 196 of file zlib.h.

Referenced by png_write_finish_row(), png_write_IHDR(), and set_data_type().

#define Z_BLOCK   5

Definition at line 167 of file zlib.h.

Referenced by inflate().

#define Z_BUF_ERROR   (-5)

Definition at line 177 of file zlib.h.

Referenced by compress2(), deflate(), do_flush(), inflate(), inflateSync(), png_decompress_chunk(), png_process_IDAT_data(), and uncompress().

#define Z_DATA_ERROR   (-3)

Definition at line 175 of file zlib.h.

Referenced by check_header(), deflateEnd(), getLong(), gzread(), gzseek(), inflate(), inflateSetDictionary(), inflateSync(), png_decompress_chunk(), and uncompress().

#define Z_DEFAULT_COMPRESSION   (-1)

Definition at line 186 of file zlib.h.

Referenced by compress(), deflateInit2_(), deflateParams(), gz_open(), and png_write_IHDR().

#define Z_DEFAULT_STRATEGY   0

Definition at line 193 of file zlib.h.

Referenced by deflateInit_(), gz_open(), and png_write_IHDR().

#define Z_DEFLATED   8

Definition at line 202 of file zlib.h.

Referenced by check_header(), deflate(), deflateInit2_(), deflateInit_(), gz_open(), and inflate().

#define Z_ERRNO   (-1)

Definition at line 173 of file zlib.h.

Referenced by check_header(), destroy(), do_flush(), get_byte(), gzerror(), gzread(), gzseek(), gzsetparams(), and gzwrite().

#define Z_FILTERED   1

Definition at line 189 of file zlib.h.

Referenced by deflate_slow(), gz_open(), and png_write_IHDR().

#define Z_FINISH   4

Definition at line 166 of file zlib.h.

Referenced by compress2(), deflate(), deflate_fast(), deflate_slow(), deflate_stored(), gzclose(), inflate(), png_write_finish_row(), and uncompress().

#define Z_FIXED   4

Definition at line 192 of file zlib.h.

Referenced by _tr_flush_block(), deflateInit2_(), and deflateParams().

#define Z_FULL_FLUSH   3

Definition at line 165 of file zlib.h.

Referenced by deflate().

#define Z_HUFFMAN_ONLY   2

Definition at line 190 of file zlib.h.

Referenced by deflate(), deflate_fast(), deflate_slow(), and gz_open().

#define Z_MEM_ERROR   (-4)

Definition at line 176 of file zlib.h.

Referenced by deflateCopy(), deflateInit2_(), gzerror(), inflate(), inflateCopy(), inflateInit2_(), inflateSetDictionary(), png_create_read_struct_2(), png_read_init_3(), and png_write_IHDR().

#define Z_NEED_DICT   2

Definition at line 172 of file zlib.h.

Referenced by inflate(), and uncompress().

#define Z_NO_COMPRESSION   0

Definition at line 183 of file zlib.h.

#define Z_NO_FLUSH   0

Definition at line 162 of file zlib.h.

Referenced by deflate(), deflate_fast(), deflate_slow(), deflate_stored(), deflateReset(), gzread(), gzwrite(), and png_write_filtered_row().

#define Z_NULL   0

Definition at line 205 of file zlib.h.

Referenced by adler32(), crc32(), deflate(), deflateBound(), deflateCopy(), deflateEnd(), deflateInit2_(), deflateParams(), deflatePrime(), deflateReset(), deflateSetDictionary(), deflateSetHeader(), deflateTune(), gz_open(), gzdopen(), gzerror(), gzgets(), gzread(), gzrewind(), gzseek(), inflate(), inflateCopy(), inflateEnd(), inflateGetHeader(), inflateInit2_(), inflatePrime(), inflateReset(), inflateSetDictionary(), inflateSync(), inflateSyncPoint(), png_reset_crc(), and updatewindow().

#define Z_OK   0

Definition at line 170 of file zlib.h.

Referenced by check_header(), compress2(), deflate(), deflateCopy(), deflateEnd(), deflateParams(), deflatePrime(), deflateReset(), deflateSetDictionary(), deflateSetHeader(), deflateTune(), destroy(), do_flush(), gz_open(), gzclearerr(), gzclose(), gzerror(), gzflush(), gzread(), gzrewind(), gzungetc(), gzwrite(), inflate(), inflateCopy(), inflateEnd(), inflateGetHeader(), inflatePrime(), inflateReset(), inflateSetDictionary(), inflateSync(), png_create_read_struct_2(), png_decompress_chunk(), png_process_IDAT_data(), png_push_read_zTXt(), png_read_finish_row(), png_read_init_3(), png_read_row(), png_write_filtered_row(), png_write_finish_row(), png_write_flush(), png_write_IHDR(), and uncompress().

#define Z_PARTIAL_FLUSH   1

Definition at line 163 of file zlib.h.

Referenced by deflate(), deflateParams(), png_decompress_chunk(), png_process_IDAT_data(), png_push_read_zTXt(), png_read_finish_row(), and png_read_row().

#define Z_RLE   3

Definition at line 191 of file zlib.h.

Referenced by deflate_fast(), deflate_slow(), and gz_open().

#define Z_STREAM_END   1

Definition at line 171 of file zlib.h.

Referenced by compress2(), deflate(), do_flush(), gzclearerr(), gzeof(), gzflush(), gzread(), gzseek(), gzungetc(), inflate(), png_decompress_chunk(), png_process_IDAT_data(), png_push_read_zTXt(), png_read_finish_row(), png_read_row(), png_write_finish_row(), and uncompress().

#define Z_STREAM_ERROR   (-2)

Definition at line 174 of file zlib.h.

Referenced by deflate(), deflateCopy(), deflateEnd(), deflateInit2_(), deflateParams(), deflatePrime(), deflateReset(), deflateSetDictionary(), deflateSetHeader(), deflateTune(), destroy(), do_flush(), gz_open(), gzclose(), gzerror(), gzread(), gzsetparams(), gzwrite(), inflate(), inflateCopy(), inflateEnd(), inflateGetHeader(), inflateInit2_(), inflatePrime(), inflateReset(), inflateSetDictionary(), inflateSync(), inflateSyncPoint(), png_create_read_struct_2(), png_read_init_3(), png_reset_zstream(), and png_write_IHDR().

#define Z_SYNC_FLUSH   2

Definition at line 164 of file zlib.h.

Referenced by png_write_flush().

#define Z_TEXT   1

Definition at line 197 of file zlib.h.

Referenced by set_data_type().

#define Z_UNKNOWN   2

Definition at line 199 of file zlib.h.

Referenced by _tr_flush_block(), and deflateReset().

#define Z_VERSION_ERROR   (-6)

Definition at line 178 of file zlib.h.

Referenced by deflateInit2_(), inflateInit2_(), png_create_read_struct_2(), png_read_init_3(), and png_write_IHDR().

#define ZLIB_VERNUM   0x1230

Definition at line 41 of file zlib.h.

#define zlib_version   zlibVersion()

Definition at line 207 of file zlib.h.

#define ZLIB_VERSION   "1.2.3"

Definition at line 40 of file zlib.h.

Referenced by deflateInit2_(), inflateInit2_(), and zlibVersion().

---

Typedef Documentation

typedef struct gz_header_s gz_header

typedef gz_header FAR* gz_headerp

Definition at line 126 of file zlib.h.

typedef voidp gzFile

Definition at line 1066 of file zlib.h.

typedef int out_func OF((void FAR *, unsigned char FAR *, unsigned))

Definition at line 77 of file zlib.h.

typedef struct z_stream_s z_stream

typedef z_stream FAR* z_streamp

Definition at line 103 of file zlib.h.

---

Function Documentation

ZEXTERN const char* ZEXPORT zlibVersion OF

(

(void)

)

ZEXTERN int ZEXPORT inflateSyncPoint OF

(

(z_streamp z)

)

ZEXTERN const char* ZEXPORT zError OF

(

(int)

)

ZEXTERN int ZEXPORT inflateBackInit_ OF

(

(z_streamp strm, int windowBits, unsigned char FAR *window, const char *version, int stream_size)

)

ZEXTERN int ZEXPORT inflateInit2_ OF

(

(z_streamp strm, intwindowBits, const char *version, int stream_size)

)

ZEXTERN int ZEXPORT deflateInit2_ OF

(

(z_streamp strm, intlevel, intmethod, int windowBits, int memLevel, int strategy, const char *version, int stream_size)

)

ZEXTERN int ZEXPORT inflateInit_ OF

(

(z_streamp strm, const char *version, int stream_size)

)

ZEXTERN int ZEXPORT deflateInit_ OF

(

(z_streamp strm, int level, const char *version, int stream_size)

)

ZEXTERN uLong ZEXPORT crc32_combine OF

(

(uLong crc1, uLong crc2, z_off_t len2)

)

ZEXTERN uLong ZEXPORT crc32 OF

(

(uLong crc, const Bytef *buf, uInt len)

)

ZEXTERN uLong ZEXPORT adler32_combine OF

(

(uLong adler1, uLong adler2, z_off_t len2)

)

ZEXTERN uLong ZEXPORT adler32 OF

(

(uLong adler, const Bytef *buf, uInt len)

)

ZEXTERN const char* ZEXPORT gzerror OF

(

(gzFile file, int *errnum)

)

ZEXTERN z_off_t ZEXPORT gzseek OF

(

(gzFile file, z_off_t offset, int whence)

)

ZEXTERN int ZEXPORT gzflush OF

(

(gzFile file, int flush)

)

ZEXTERN int ZEXPORT gzungetc OF

(

(int c, gzFile file)

)

ZEXTERN int ZEXPORT gzgetc OF

(

(gzFile file)

)

ZEXTERN int ZEXPORT gzputc OF

(

(gzFile file, int c)

)

ZEXTERN char* ZEXPORT gzgets OF

(

(gzFile file, char *buf, int len)

)

ZEXTERN int ZEXPORT gzputs OF

(

(gzFile file, const char *s)

)

ZEXTERN int ZEXPORTVA gzprintf OF

(

(gzFile file, const char *format,...)

)

ZEXTERN int ZEXPORT gzwrite OF

(

(gzFile file, voidpc buf, unsigned len)

)

ZEXTERN int ZEXPORT gzread OF

(

(gzFile file, voidp buf, unsigned len)

)

ZEXTERN int ZEXPORT gzsetparams OF

(

(gzFile file, int level, int strategy)

)

ZEXTERN gzFile ZEXPORT gzdopen OF

(

(int fd, const char *mode)

)

ZEXTERN gzFile ZEXPORT gzopen OF

(

(const char *path, const char *mode)

)

ZEXTERN uLong ZEXPORT compressBound OF

(

(uLong sourceLen)

)

ZEXTERN int ZEXPORT compress2 OF

(

(Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level)

)

ZEXTERN int ZEXPORT compress OF

(

(Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)

)

ZEXTERN int ZEXPORT inflateBack OF

(

(z_streamp strm, in_func in, void FAR *in_desc, out_func out, void FAR *out_desc)

)

ZEXTERN int ZEXPORT deflateSetHeader OF

(

(z_streamp strm, gz_headerp head)

)

ZEXTERN int ZEXPORT deflatePrime OF

(

(z_streamp strm, int bits, int value)

)

ZEXTERN uLong ZEXPORT deflateBound OF

(

(z_streamp strm, uLong sourceLen)

)

ZEXTERN int ZEXPORT deflateTune OF

(

(z_streamp strm, int good_length, int max_lazy, int nice_length, int max_chain)

)

ZEXTERN int ZEXPORT deflateParams OF

(

(z_streamp strm, int level, int strategy)

)

ZEXTERN int ZEXPORT deflateCopy OF

(

(z_streamp dest, z_streamp source)

)

ZEXTERN int ZEXPORT deflateSetDictionary OF

(

(z_streamp strm, const Bytef *dictionary, uIntdictLength)

)

ZEXTERN int ZEXPORT deflateEnd OF

(

(z_streamp strm)

)

ZEXTERN int ZEXPORT deflate OF

(

(z_streamp strm, int flush)

)