#include <stdio.h>
#include "zutil.h"

Include dependency graph for gzio.c:

Classes
struct	internal_state
struct	gz_stream
Defines
#define	Z_BUFSIZE 16384
#define	Z_PRINTF_BUFSIZE 4096
#define	ALLOC(size) malloc(size)
#define	TRYFREE(p) {if (p) free(p);}
#define	ASCII_FLAG 0x01
#define	HEAD_CRC 0x02
#define	EXTRA_FIELD 0x04
#define	ORIG_NAME 0x08
#define	COMMENT 0x10
#define	RESERVED 0xE0
#define	zstrerror(errnum) ""
Typedefs
typedef struct gz_stream	gz_stream
Functions
voidp malloc	OF ((uInt size))
void free	OF ((voidpf ptr))
local gzFile gz_open	OF ((const char path, const char mode, intfd))
local int do_flush	OF ((gzFile file, int flush))
local int get_byte	OF ((gz_stream *s))
local void putLong	OF ((FILE *file, uLong x))
local gzFile	gz_open (char path, const char mode, int fd) const
gzFile ZEXPORT	gzopen (char path, const char mode) const
gzFile ZEXPORT	gzdopen (int fd, const char *mode)
int ZEXPORT	gzsetparams (gzFile file, int level, int strategy)
local int	get_byte (gz_stream *s)
local void	check_header (gz_stream *s)
local int	destroy (gz_stream *s)
int ZEXPORT	gzread (gzFile file, voidp buf, unsigned len)
int ZEXPORT	gzgetc (gzFile file)
int ZEXPORT	gzungetc (int c, gzFile file)
char *ZEXPORT	gzgets (gzFile file, char *buf, int len)
int ZEXPORT	gzwrite (gzFile file, voidpc buf, unsigned len)
int ZEXPORTVA	gzprintf (gzFile file, const char *format, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8, int a9, int a10, int a11, int a12, int a13, int a14, int a15, int a16, int a17, int a18, int a19, int a20)
int ZEXPORT	gzputc (gzFile file, int c)
int ZEXPORT	gzputs (gzFile file, const char *s)
local int	do_flush (gzFile file, int flush)
int ZEXPORT	gzflush (gzFile file, int flush)
z_off_t ZEXPORT	gzseek (gzFile file, z_off_t offset, int whence)
int ZEXPORT	gzrewind (gzFile file)
z_off_t ZEXPORT	gztell (gzFile file)
int ZEXPORT	gzeof (gzFile file)
int ZEXPORT	gzdirect (gzFile file)
local void	putLong (FILE *file, uLong x)
local uLong	getLong (gz_stream *s)
int ZEXPORT	gzclose (gzFile file)
const char *ZEXPORT	gzerror (gzFile file, int *errnum)
void ZEXPORT	gzclearerr (gzFile file)

Define Documentation

#define ALLOC ( size ) malloc(size)

Definition at line 43 of file gzio.c.

Referenced by gz_open(), gzerror(), and gzseek().

#define ASCII_FLAG 0x01

Definition at line 49 of file gzio.c.

#define COMMENT 0x10

Definition at line 53 of file gzio.c.

Referenced by check_header().

#define EXTRA_FIELD 0x04

Definition at line 51 of file gzio.c.

Referenced by check_header().

#define HEAD_CRC 0x02

Definition at line 50 of file gzio.c.

Referenced by check_header().

#define ORIG_NAME 0x08

Definition at line 52 of file gzio.c.

Referenced by check_header().

#define RESERVED 0xE0

Definition at line 54 of file gzio.c.

Referenced by check_header().

#define TRYFREE ( p ) {if (p) free(p);}

Definition at line 44 of file gzio.c.

Referenced by destroy(), and gzerror().

#define Z_BUFSIZE 16384

Definition at line 26 of file gzio.c.

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

#define Z_PRINTF_BUFSIZE 4096

Definition at line 30 of file gzio.c.

Referenced by gzprintf().

#define zstrerror ( errnum ) ""

Definition at line 977 of file gzio.c.

Referenced by gzerror().

Typedef Documentation

typedef struct gz_stream gz_stream

Function Documentation

local void check_header ( gz_stream * s )

Definition at line 288 of file gzio.c.

References COMMENT, EXTRA_FIELD, flags, get_byte(), HEAD_CRC, method, ORIG_NAME, RESERVED, Z_BUFSIZE, Z_DATA_ERROR, Z_DEFLATED, Z_ERRNO, and Z_OK.

Referenced by gz_open(), and gzread().

local int destroy ( gz_stream * s )

Definition at line 355 of file gzio.c.

References deflateEnd(), inflateEnd(), NULL, TRYFREE, Z_ERRNO, Z_OK, and Z_STREAM_ERROR.

Referenced by gz_open(), and gzclose().

local int do_flush	(	gzFile	file,
		int	flush
	)

Definition at line 705 of file gzio.c.

References z_stream_s::avail_in, z_stream_s::avail_out, deflate(), gz_stream::file, gz_stream::mode, z_stream_s::next_out, NULL, gz_stream::out, gz_stream::outbuf, gz_stream::stream, Z_BUF_ERROR, Z_BUFSIZE, gz_stream::z_err, Z_ERRNO, Z_OK, Z_STREAM_END, and Z_STREAM_ERROR.

Referenced by gzclose(), and gzflush().

local int get_byte ( gz_stream * s )

Definition at line 261 of file gzio.c.

References z_stream_s::avail_in, gz_stream::stream, Z_BUFSIZE, and Z_ERRNO.

Referenced by check_header(), and getLong().

local uLong getLong ( gz_stream * s )

Definition at line 935 of file gzio.c.

References get_byte(), x, and Z_DATA_ERROR.

Referenced by gzread().

local gzFile gz_open	(	char *	path,
		const char *	mode,
		int	fd
	)		const

Definition at line 93 of file gzio.c.

References ALLOC, z_stream_s::avail_in, z_stream_s::avail_out, gz_stream::back, check_header(), gz_stream::crc, crc32(), DEF_MEM_LEVEL, deflateInit2, destroy(), F_OPEN, gz_stream::file, gz_stream::in, gz_stream::inbuf, inflateInit2, level, m, MAX_WBITS, gz_stream::mode, gz_stream::msg, z_stream_s::next_in, z_stream_s::next_out, NULL, z_stream_s::opaque, OS_CODE, gz_stream::out, gz_stream::outbuf, gz_stream::path, gz_stream::start, strategy, gz_stream::stream, gz_stream::transparent, Z_BUFSIZE, Z_DEFAULT_COMPRESSION, Z_DEFAULT_STRATEGY, Z_DEFLATED, gz_stream::z_eof, gz_stream::z_err, Z_FILTERED, Z_HUFFMAN_ONLY, Z_NULL, Z_OK, Z_RLE, Z_STREAM_ERROR, z_stream_s::zalloc, and z_stream_s::zfree.

Referenced by gzdopen(), and gzopen().

void ZEXPORT gzclearerr ( gzFile file )

Definition at line 1017 of file gzio.c.

References gz_stream::file, NULL, gz_stream::z_eof, gz_stream::z_err, Z_OK, and Z_STREAM_END.

int ZEXPORT gzclose ( gzFile file )

Definition at line 953 of file gzio.c.

References gz_stream::crc, destroy(), do_flush(), gz_stream::file, gz_stream::in, gz_stream::mode, NULL, putLong(), Z_FINISH, Z_OK, and Z_STREAM_ERROR.

int ZEXPORT gzdirect ( gzFile file )

Definition at line 908 of file gzio.c.

References gz_stream::mode, NULL, and gz_stream::transparent.

gzFile ZEXPORT gzdopen	(	int	fd,
		const char *	mode
	)

Definition at line 219 of file gzio.c.

References gz_open(), name, and Z_NULL.

int ZEXPORT gzeof ( gzFile file )

Definition at line 891 of file gzio.c.

References gz_stream::mode, NULL, gz_stream::z_eof, gz_stream::z_err, and Z_STREAM_END.

const char* ZEXPORT gzerror	(	gzFile	file,
		int *	errnum
	)

Definition at line 987 of file gzio.c.

References ALLOC, ERR_MSG, m, gz_stream::msg, z_stream_s::msg, NULL, gz_stream::path, gz_stream::stream, TRYFREE, gz_stream::z_err, Z_ERRNO, Z_MEM_ERROR, Z_NULL, Z_OK, Z_STREAM_ERROR, and zstrerror.

int ZEXPORT gzflush	(	gzFile	file,
		int	flush
	)

Definition at line 746 of file gzio.c.

References do_flush(), gz_stream::file, gz_stream::z_err, Z_OK, and Z_STREAM_END.

int ZEXPORT gzgetc ( gzFile file )

Definition at line 503 of file gzio.c.

References gzread().

char* ZEXPORT gzgets	(	gzFile	file,
		char *	buf,
		int	len
	)

Definition at line 540 of file gzio.c.

References b, buf, gzread(), and Z_NULL.

gzFile ZEXPORT gzopen	(	char *	path,
		const char *	mode
	)		const

Definition at line 208 of file gzio.c.

References gz_open().

int ZEXPORTVA gzprintf	(	gzFile	file,
		const char *	format,
		int	a1,
		int	a2,
		int	a3,
		int	a4,
		int	a5,
		int	a6,
		int	a7,
		int	a8,
		int	a9,
		int	a10,
		int	a11,
		int	a12,
		int	a13,
		int	a14,
		int	a15,
		int	a16,
		int	a17,
		int	a18,
		int	a19,
		int	a20
	)

Definition at line 637 of file gzio.c.

References buf, gzwrite(), snprintf, and Z_PRINTF_BUFSIZE.

int ZEXPORT gzputc	(	gzFile	file,
		int	c
	)

Definition at line 678 of file gzio.c.

References gzwrite(), and int.

int ZEXPORT gzputs	(	gzFile	file,
		const char *	s
	)

Definition at line 693 of file gzio.c.

References gzwrite().

int ZEXPORT gzread	(	gzFile	file,
		voidp	buf,
		unsigned	len
	)

Definition at line 394 of file gzio.c.

References z_stream_s::avail_in, z_stream_s::avail_out, gz_stream::back, check_header(), gz_stream::crc, crc32(), gz_stream::file, getLong(), gz_stream::in, gz_stream::inbuf, inflate(), inflateReset(), gz_stream::last, gz_stream::mode, z_stream_s::next_in, z_stream_s::next_out, NULL, gz_stream::out, start, gz_stream::stream, gz_stream::transparent, void(), Z_BUFSIZE, Z_DATA_ERROR, gz_stream::z_eof, gz_stream::z_err, Z_ERRNO, Z_NO_FLUSH, Z_NULL, Z_OK, Z_STREAM_END, Z_STREAM_ERROR, and zmemcpy().

Referenced by gzgetc(), gzgets(), and gzseek().

int ZEXPORT gzrewind ( gzFile file )

Definition at line 857 of file gzio.c.

References z_stream_s::avail_in, gz_stream::back, gz_stream::crc, crc32(), gz_stream::file, gz_stream::in, gz_stream::inbuf, inflateReset(), gz_stream::mode, z_stream_s::next_in, NULL, gz_stream::out, SEEK_SET, gz_stream::start, gz_stream::stream, gz_stream::transparent, void(), gz_stream::z_eof, gz_stream::z_err, Z_NULL, and Z_OK.

Referenced by gzseek().

z_off_t ZEXPORT gzseek	(	gzFile	file,
		z_off_t	offset,
		int	whence
	)

Definition at line 767 of file gzio.c.

References ALLOC, z_stream_s::avail_in, gz_stream::back, gz_stream::file, gzread(), gzrewind(), gzwrite(), gz_stream::in, gz_stream::inbuf, int, gz_stream::last, gz_stream::mode, z_stream_s::next_in, NULL, gz_stream::out, gz_stream::outbuf, SEEK_CUR, SEEK_END, SEEK_SET, size, gz_stream::stream, gz_stream::transparent, Z_BUFSIZE, Z_DATA_ERROR, gz_stream::z_err, Z_ERRNO, Z_NULL, Z_STREAM_END, and zmemzero().

Referenced by gztell().

int ZEXPORT gzsetparams	(	gzFile	file,
		int	level,
		int	strategy
	)

Definition at line 234 of file gzio.c.

References z_stream_s::avail_out, deflateParams(), gz_stream::file, gz_stream::mode, z_stream_s::next_out, NULL, gz_stream::outbuf, gz_stream::stream, Z_BUFSIZE, gz_stream::z_err, Z_ERRNO, and Z_STREAM_ERROR.

z_off_t ZEXPORT gztell ( gzFile file )

Definition at line 881 of file gzio.c.

References gzseek(), and SEEK_CUR.

int ZEXPORT gzungetc	(	int	c,
		gzFile	file
	)

Definition at line 515 of file gzio.c.

References gz_stream::back, gz_stream::last, gz_stream::mode, NULL, gz_stream::out, gz_stream::z_eof, gz_stream::z_err, Z_OK, and Z_STREAM_END.

int ZEXPORT gzwrite	(	gzFile	file,
		voidpc	buf,
		unsigned	len
	)

Definition at line 559 of file gzio.c.

References z_stream_s::avail_in, z_stream_s::avail_out, gz_stream::crc, crc32(), deflate(), gz_stream::file, gz_stream::in, gz_stream::mode, z_stream_s::next_in, z_stream_s::next_out, NULL, gz_stream::out, gz_stream::outbuf, gz_stream::stream, Z_BUFSIZE, gz_stream::z_err, Z_ERRNO, Z_NO_FLUSH, Z_OK, and Z_STREAM_ERROR.

Referenced by gzprintf(), gzputc(), gzputs(), and gzseek().

local int do_flush OF ( (gzFile file, int flush) )

local gzFile gz_open OF ( (const char *path, const char *mode, intfd) )

local void putLong OF ( (FILE *file, uLong x) )

voidp malloc OF ( (uInt size) )

void free OF ( (voidpf ptr) )

local int get_byte OF ( (gz_stream *s) )

local void putLong	(	FILE *	file,
		uLong	x
	)

Definition at line 920 of file gzio.c.

Referenced by gzclose().

gzio.c File Reference

Classes

Defines

Typedefs

Functions

Define Documentation

Typedef Documentation

Function Documentation