zran.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zlib.h"

Go to the source code of this file.

Macros
#define	local   static
#define	SPAN   1048576L /* desired distance between access points */
#define	WINSIZE   32768U /* sliding window size */
#define	CHUNK   16384 /* file input buffer size */

Functions
local void	free_index (struct access *index)
local struct access *	addpoint (struct access *index, int bits, off_t in, off_t out, unsigned left, unsigned char *window)
local int	build_index (FILE *in, off_t span, struct access **built)
local int	extract (FILE *in, struct access *index, off_t offset, unsigned char *buf, int len)
int	main (int argc, char **argv)

Macro Definition Documentation

CHUNK

#define CHUNK   16384 /* file input buffer size */

Definition at line 64 of file zran.c.

Referenced by build_index(), extract(), and main().

local

#define local   static

Definition at line 60 of file zran.c.

SPAN

#define SPAN   1048576L /* desired distance between access points */

Definition at line 62 of file zran.c.

Referenced by main().

WINSIZE

#define WINSIZE   32768U /* sliding window size */

Definition at line 63 of file zran.c.

Referenced by extract().

Function Documentation

addpoint()

local struct access* addpoint	(	struct access *	index,
		int	bits,
		off_t	in,
		off_t	out,
		unsigned	left,
		unsigned char *	window
	)

Definition at line 92 of file zran.c.

build_index()

local int build_index	(	FILE *	in,
		off_t	span,
		struct access **	built
	)

Definition at line 144 of file zran.c.

References CHUNK.

Referenced by main().

extract()

local int extract	(	FILE *	in,
		struct access *	index,
		off_t	offset,
		unsigned char *	buf,
		int	len
	)

Definition at line 249 of file zran.c.

References z_stream_s::avail_in, z_stream_s::avail_out, CHUNK, inflate(), inflateEnd(), inflateInit2, inflatePrime(), inflateSetDictionary(), z_stream_s::next_in, z_stream_s::next_out, z_stream_s::opaque, out(), SEEK_SET, skip(), void(), WINSIZE, Z_DATA_ERROR, Z_ERRNO, Z_MEM_ERROR, Z_NEED_DICT, Z_NO_FLUSH, Z_NULL, Z_OK, Z_STREAM_END, z_stream_s::zalloc, and z_stream_s::zfree.

Referenced by main(), and vl::LoadWriterDae::LoadOptions::setExtractSkins().

free_index()

local void free_index

(

struct access *

index

)

Definition at line 82 of file zran.c.

References free(), and NULL.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 354 of file zran.c.

References build_index(), CHUNK, extract(), free_index(), NULL, SPAN, Z_DATA_ERROR, Z_ERRNO, and Z_MEM_ERROR.