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<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - infback.c</title></head><body bgcolor='white'><pre>
<font color='#009900'>/* infback.c -- inflate using a call-back interface
* Copyright (C) 1995-2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/</font>
<font color='#009900'>/*
This code is largely copied from inflate.c. Normally either infback.o or
inflate.o would be linked into an application--not both. The interface
with inffast.c is retained so that optimized assembler-coded versions of
inflate_fast() can be used with either inflate.c or infback.c.
*/</font>
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='zutil.h.html'>zutil.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='inftrees.h.html'>inftrees.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='inflate.h.html'>inflate.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='inffast.h.html'>inffast.h</a>"
<font color='#009900'>/* function prototypes */</font>
local <font color='#0000FF'><u>void</u></font> fixedtables <b><a name='OF'></a>OF</b><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'>struct</font> inflate_state FAR <font color='#5555FF'>*</font>state<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/*
strm provides memory allocation functions in zalloc and zfree, or
Z_NULL to use the library memory allocation functions.
windowBits is in the range 8..15, and window is a user-supplied
window and output buffer that is 2**windowBits bytes.
*/</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='inflateBackInit_'></a>inflateBackInit_</b><font face='Lucida Console'>(</font>strm, windowBits, window, version, stream_size<font face='Lucida Console'>)</font>
z_streamp strm;
<font color='#0000FF'><u>int</u></font> windowBits;
<font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> FAR <font color='#5555FF'>*</font>window;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>version;
<font color='#0000FF'><u>int</u></font> stream_size;
<b>{</b>
<font color='#0000FF'>struct</font> inflate_state FAR <font color='#5555FF'>*</font>state;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>version <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL <font color='#5555FF'>|</font><font color='#5555FF'>|</font> version[<font color='#979000'>0</font>] <font color='#5555FF'>!</font><font color='#5555FF'>=</font> ZLIB_VERSION[<font color='#979000'>0</font>] <font color='#5555FF'>|</font><font color='#5555FF'>|</font>
stream_size <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font><font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font>z_stream<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_VERSION_ERROR;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL <font color='#5555FF'>|</font><font color='#5555FF'>|</font> window <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL <font color='#5555FF'>|</font><font color='#5555FF'>|</font>
windowBits <font color='#5555FF'><</font> <font color='#979000'>8</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> windowBits <font color='#5555FF'>></font> <font color='#979000'>15</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> Z_NULL; <font color='#009900'>/* in case we return an error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zalloc <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>alloc_func<font face='Lucida Console'>)</font><font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>#ifdef</font> Z_SOLO
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#0000FF'>#else</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zalloc <font color='#5555FF'>=</font> zcalloc;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>opaque <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>voidpf<font face='Lucida Console'>)</font><font color='#979000'>0</font>;
<font color='#0000FF'>#endif</font>
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zfree <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>free_func<font face='Lucida Console'>)</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>#ifdef</font> Z_SOLO
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#0000FF'>#else</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zfree <font color='#5555FF'>=</font> zcfree;
<font color='#0000FF'>#endif</font>
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'>struct</font> inflate_state FAR <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font color='#BB00BB'>ZALLOC</font><font face='Lucida Console'>(</font>strm, <font color='#979000'>1</font>,
<font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'>struct</font> <b><a name='inflate_state'></a>inflate_state</b><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL<font face='Lucida Console'>)</font> <font color='#0000FF'>return</font> Z_MEM_ERROR;
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: allocated\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'>struct</font> internal_state FAR <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>state;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>dmax <font color='#5555FF'>=</font> <font color='#979000'>32768</font>U;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wbits <font color='#5555FF'>=</font> windowBits;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize <font color='#5555FF'>=</font> <font color='#979000'>1</font>U <font color='#5555FF'><</font><font color='#5555FF'><</font> windowBits;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>window <font color='#5555FF'>=</font> window;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wnext <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>whave <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>return</font> Z_OK;
<b>}</b>
<font color='#009900'>/*
Return state with length and distance decoding tables and index sizes set to
fixed code decoding. Normally this returns fixed tables from inffixed.h.
If BUILDFIXED is defined, then instead this routine builds the tables the
first time it's called, and returns those tables the first time and
thereafter. This reduces the size of the code by about 2K bytes, in
exchange for a little execution time. However, BUILDFIXED should not be
used for threaded applications, since the rewriting of the tables and virgin
may not be thread-safe.
*/</font>
local <font color='#0000FF'><u>void</u></font> <b><a name='fixedtables'></a>fixedtables</b><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>
<font color='#0000FF'>struct</font> inflate_state FAR <font color='#5555FF'>*</font>state;
<b>{</b>
<font color='#0000FF'>#ifdef</font> BUILDFIXED
<font color='#0000FF'>static</font> <font color='#0000FF'><u>int</u></font> virgin <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>static</font> code <font color='#5555FF'>*</font>lenfix, <font color='#5555FF'>*</font>distfix;
<font color='#0000FF'>static</font> code fixed[<font color='#979000'>544</font>];
<font color='#009900'>/* build fixed huffman tables if first call (may not be thread safe) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>virgin<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'><u>unsigned</u></font> sym, bits;
<font color='#0000FF'>static</font> code <font color='#5555FF'>*</font>next;
<font color='#009900'>/* literal/length table */</font>
sym <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>sym <font color='#5555FF'><</font> <font color='#979000'>144</font><font face='Lucida Console'>)</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[sym<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> <font color='#979000'>8</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>sym <font color='#5555FF'><</font> <font color='#979000'>256</font><font face='Lucida Console'>)</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[sym<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> <font color='#979000'>9</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>sym <font color='#5555FF'><</font> <font color='#979000'>280</font><font face='Lucida Console'>)</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[sym<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> <font color='#979000'>7</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>sym <font color='#5555FF'><</font> <font color='#979000'>288</font><font face='Lucida Console'>)</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[sym<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> <font color='#979000'>8</font>;
next <font color='#5555FF'>=</font> fixed;
lenfix <font color='#5555FF'>=</font> next;
bits <font color='#5555FF'>=</font> <font color='#979000'>9</font>;
<font color='#BB00BB'>inflate_table</font><font face='Lucida Console'>(</font>LENS, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens, <font color='#979000'>288</font>, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>next<font face='Lucida Console'>)</font>, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>bits<font face='Lucida Console'>)</font>, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>work<font face='Lucida Console'>)</font>;
<font color='#009900'>/* distance table */</font>
sym <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>sym <font color='#5555FF'><</font> <font color='#979000'>32</font><font face='Lucida Console'>)</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[sym<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> <font color='#979000'>5</font>;
distfix <font color='#5555FF'>=</font> next;
bits <font color='#5555FF'>=</font> <font color='#979000'>5</font>;
<font color='#BB00BB'>inflate_table</font><font face='Lucida Console'>(</font>DISTS, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens, <font color='#979000'>32</font>, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>next<font face='Lucida Console'>)</font>, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>bits<font face='Lucida Console'>)</font>, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>work<font face='Lucida Console'>)</font>;
<font color='#009900'>/* do this just once */</font>
virgin <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#0000FF'>#else</font> <font color='#009900'>/* !BUILDFIXED */</font>
# include "<font color='#CC0000'>inffixed.h</font>"
<font color='#0000FF'>#endif</font> <font color='#009900'>/* BUILDFIXED */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lencode <font color='#5555FF'>=</font> lenfix;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits <font color='#5555FF'>=</font> <font color='#979000'>9</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distcode <font color='#5555FF'>=</font> distfix;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distbits <font color='#5555FF'>=</font> <font color='#979000'>5</font>;
<b>}</b>
<font color='#009900'>/* Macros for inflateBack(): */</font>
<font color='#009900'>/* Load returned state from inflate_fast() */</font>
<font color='#0000FF'>#define</font> LOAD<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
put <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out; \
left <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out; \
next <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in; \
have <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in; \
hold <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>hold; \
bits <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>bits; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Set state from registers for inflate_fast() */</font>
<font color='#0000FF'>#define</font> RESTORE<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out <font color='#5555FF'>=</font> put; \
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out <font color='#5555FF'>=</font> left; \
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> next; \
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> have; \
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>hold <font color='#5555FF'>=</font> hold; \
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>bits <font color='#5555FF'>=</font> bits; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Clear the input bit accumulator */</font>
<font color='#0000FF'>#define</font> INITBITS<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
hold <font color='#5555FF'>=</font> <font color='#979000'>0</font>; \
bits <font color='#5555FF'>=</font> <font color='#979000'>0</font>; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Assure that some input is available. If input is requested, but denied,
then return a Z_BUF_ERROR from inflateBack(). */</font>
<font color='#0000FF'>#define</font> PULL<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>have <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> \
have <font color='#5555FF'>=</font> <font color='#BB00BB'>in</font><font face='Lucida Console'>(</font>in_desc, <font color='#5555FF'>&</font>next<font face='Lucida Console'>)</font>; \
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>have <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> \
next <font color='#5555FF'>=</font> Z_NULL; \
ret <font color='#5555FF'>=</font> Z_BUF_ERROR; \
<font color='#0000FF'>goto</font> inf_leave; \
<b>}</b> \
<b>}</b> \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Get a byte of input into the bit accumulator, or return from inflateBack()
with an error if there is no input available. */</font>
<font color='#0000FF'>#define</font> PULLBYTE<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
<font color='#BB00BB'>PULL</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; \
have<font color='#5555FF'>-</font><font color='#5555FF'>-</font>; \
hold <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font><font color='#5555FF'>*</font>next<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> bits; \
bits <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Assure that there are at least n bits in the bit accumulator. If there is
not enough available input to do that, then return from inflateBack() with
an error. */</font>
<font color='#0000FF'>#define</font> NEEDBITS<font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>bits <font color='#5555FF'><</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> \
<font color='#BB00BB'>PULLBYTE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Return the low n bits of the bit accumulator (n < 16) */</font>
<font color='#0000FF'>#define</font> BITS<font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font> \
<font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>hold <font color='#5555FF'>&</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#979000'>1</font>U <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Remove n bits from the bit accumulator */</font>
<font color='#0000FF'>#define</font> DROPBITS<font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
hold <font color='#5555FF'>></font><font color='#5555FF'>></font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font>; \
bits <font color='#5555FF'>-</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font>; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Remove zero to seven bits as needed to go to a byte boundary */</font>
<font color='#0000FF'>#define</font> BYTEBITS<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
hold <font color='#5555FF'>></font><font color='#5555FF'>></font><font color='#5555FF'>=</font> bits <font color='#5555FF'>&</font> <font color='#979000'>7</font>; \
bits <font color='#5555FF'>-</font><font color='#5555FF'>=</font> bits <font color='#5555FF'>&</font> <font color='#979000'>7</font>; \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/* Assure that some output space is available, by writing out the window
if it's full. If the write fails, return from inflateBack() with a
Z_BUF_ERROR. */</font>
<font color='#0000FF'>#define</font> ROOM<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> \
<font color='#0000FF'>do</font> <b>{</b> \
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>left <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> \
put <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>window; \
left <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize; \
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>whave <font color='#5555FF'>=</font> left; \
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>out</font><font face='Lucida Console'>(</font>out_desc, put, left<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b> \
ret <font color='#5555FF'>=</font> Z_BUF_ERROR; \
<font color='#0000FF'>goto</font> inf_leave; \
<b>}</b> \
<b>}</b> \
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#009900'>/*
strm provides the memory allocation functions and window buffer on input,
and provides information on the unused input on return. For Z_DATA_ERROR
returns, strm will also provide an error message.
in() and out() are the call-back input and output functions. When
inflateBack() needs more input, it calls in(). When inflateBack() has
filled the window with output, or when it completes with data in the
window, it calls out() to write out the data. The application must not
change the provided input until in() is called again or inflateBack()
returns. The application must not change the window/output buffer until
inflateBack() returns.
in() and out() are called with a descriptor parameter provided in the
inflateBack() call. This parameter can be a structure that provides the
information required to do the read or write, as well as accumulated
information on the input and output such as totals and check values.
in() should return zero on failure. out() should return non-zero on
failure. If either in() or out() fails, than inflateBack() returns a
Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it
was in() or out() that caused in the error. Otherwise, inflateBack()
returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
error, or Z_MEM_ERROR if it could not allocate memory for the state.
inflateBack() can also return Z_STREAM_ERROR if the input parameters
are not correct, i.e. strm is Z_NULL or the state was not initialized.
*/</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='inflateBack'></a>inflateBack</b><font face='Lucida Console'>(</font>strm, in, in_desc, out, out_desc<font face='Lucida Console'>)</font>
z_streamp strm;
in_func in;
<font color='#0000FF'><u>void</u></font> FAR <font color='#5555FF'>*</font>in_desc;
out_func out;
<font color='#0000FF'><u>void</u></font> FAR <font color='#5555FF'>*</font>out_desc;
<b>{</b>
<font color='#0000FF'>struct</font> inflate_state FAR <font color='#5555FF'>*</font>state;
z_const <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> FAR <font color='#5555FF'>*</font>next; <font color='#009900'>/* next input */</font>
<font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> FAR <font color='#5555FF'>*</font>put; <font color='#009900'>/* next output */</font>
<font color='#0000FF'><u>unsigned</u></font> have, left; <font color='#009900'>/* available input and output */</font>
<font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> hold; <font color='#009900'>/* bit buffer */</font>
<font color='#0000FF'><u>unsigned</u></font> bits; <font color='#009900'>/* bits in bit buffer */</font>
<font color='#0000FF'><u>unsigned</u></font> copy; <font color='#009900'>/* number of stored or match bytes to copy */</font>
<font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> FAR <font color='#5555FF'>*</font>from; <font color='#009900'>/* where to copy match bytes from */</font>
code here; <font color='#009900'>/* current decoding table entry */</font>
code last; <font color='#009900'>/* parent table entry */</font>
<font color='#0000FF'><u>unsigned</u></font> len; <font color='#009900'>/* length to copy for repeats, bits to drop */</font>
<font color='#0000FF'><u>int</u></font> ret; <font color='#009900'>/* return code */</font>
<font color='#0000FF'>static</font> <font color='#0000FF'>const</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> order[<font color='#979000'>19</font>] <font color='#5555FF'>=</font> <font color='#009900'>/* permutation of code lengths */</font>
<b>{</b><font color='#979000'>16</font>, <font color='#979000'>17</font>, <font color='#979000'>18</font>, <font color='#979000'>0</font>, <font color='#979000'>8</font>, <font color='#979000'>7</font>, <font color='#979000'>9</font>, <font color='#979000'>6</font>, <font color='#979000'>10</font>, <font color='#979000'>5</font>, <font color='#979000'>11</font>, <font color='#979000'>4</font>, <font color='#979000'>12</font>, <font color='#979000'>3</font>, <font color='#979000'>13</font>, <font color='#979000'>2</font>, <font color='#979000'>14</font>, <font color='#979000'>1</font>, <font color='#979000'>15</font><b>}</b>;
<font color='#009900'>/* Check that the strm exists and that the state was initialized */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL <font color='#5555FF'>|</font><font color='#5555FF'>|</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>state <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'>struct</font> inflate_state FAR <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>state;
<font color='#009900'>/* Reset the state */</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> Z_NULL;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> TYPE;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>last <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>whave <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
next <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in;
have <font color='#5555FF'>=</font> next <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_NULL ? strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in : <font color='#979000'>0</font>;
hold <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
bits <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
put <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>window;
left <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize;
<font color='#009900'>/* Inflate until end of block marked as last */</font>
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>;;<font face='Lucida Console'>)</font>
<font color='#0000FF'>switch</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>case</font> TYPE:
<font color='#009900'>/* determine and dispatch block type */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>last<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>BYTEBITS</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> DONE;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>last <font color='#5555FF'>=</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>switch</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>case</font> <font color='#979000'>0</font>: <font color='#009900'>/* stored block */</font>
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: stored block%s\n</font>",
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>last ? "<font color='#CC0000'> (last)</font>" : "<font color='#CC0000'></font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> STORED;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> <font color='#979000'>1</font>: <font color='#009900'>/* fixed block */</font>
<font color='#BB00BB'>fixedtables</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: fixed codes block%s\n</font>",
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>last ? "<font color='#CC0000'> (last)</font>" : "<font color='#CC0000'></font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> LEN; <font color='#009900'>/* decode codes */</font>
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> <font color='#979000'>2</font>: <font color='#009900'>/* dynamic block */</font>
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: dynamic codes block%s\n</font>",
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>last ? "<font color='#CC0000'> (last)</font>" : "<font color='#CC0000'></font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> TABLE;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> <font color='#979000'>3</font>:
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid block type</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<b>}</b>
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> STORED:
<font color='#009900'>/* get and verify stored block length */</font>
<font color='#BB00BB'>BYTEBITS</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* go to byte boundary */</font>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font><font color='#979000'>32</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>hold <font color='#5555FF'>&</font> <font color='#979000'>0xffff</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>hold <font color='#5555FF'>></font><font color='#5555FF'>></font> <font color='#979000'>16</font><font face='Lucida Console'>)</font> ^ <font color='#979000'>0xffff</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid stored block lengths</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>hold <font color='#5555FF'>&</font> <font color='#979000'>0xffff</font>;
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: stored length %u\n</font>",
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>INITBITS</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* copy stored block from input to output */</font>
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
copy <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length;
<font color='#BB00BB'>PULL</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>ROOM</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>copy <font color='#5555FF'>></font> have<font face='Lucida Console'>)</font> copy <font color='#5555FF'>=</font> have;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>copy <font color='#5555FF'>></font> left<font face='Lucida Console'>)</font> copy <font color='#5555FF'>=</font> left;
<font color='#BB00BB'>zmemcpy</font><font face='Lucida Console'>(</font>put, next, copy<font face='Lucida Console'>)</font>;
have <font color='#5555FF'>-</font><font color='#5555FF'>=</font> copy;
next <font color='#5555FF'>+</font><font color='#5555FF'>=</font> copy;
left <font color='#5555FF'>-</font><font color='#5555FF'>=</font> copy;
put <font color='#5555FF'>+</font><font color='#5555FF'>=</font> copy;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>-</font><font color='#5555FF'>=</font> copy;
<b>}</b>
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: stored end\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> TYPE;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> TABLE:
<font color='#009900'>/* get dynamic table entries descriptor */</font>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font><font color='#979000'>14</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>nlen <font color='#5555FF'>=</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>5</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#979000'>257</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>5</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ndist <font color='#5555FF'>=</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>5</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#979000'>1</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>5</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ncode <font color='#5555FF'>=</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>4</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#979000'>4</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>4</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>#ifndef</font> PKZIP_BUG_WORKAROUND
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>nlen <font color='#5555FF'>></font> <font color='#979000'>286</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ndist <font color='#5555FF'>></font> <font color='#979000'>30</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>too many length or distance symbols</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#0000FF'>#endif</font>
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: table sizes ok\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* get code length code lengths (not a typo) */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ncode<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[order[state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have<font color='#5555FF'>+</font><font color='#5555FF'>+</font>]] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'><</font> <font color='#979000'>19</font><font face='Lucida Console'>)</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[order[state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have<font color='#5555FF'>+</font><font color='#5555FF'>+</font>]] <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>codes;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lencode <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>code <font color='#0000FF'>const</font> FAR <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits <font color='#5555FF'>=</font> <font color='#979000'>7</font>;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>inflate_table</font><font face='Lucida Console'>(</font>CODES, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens, <font color='#979000'>19</font>, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next<font face='Lucida Console'>)</font>,
<font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits<font face='Lucida Console'>)</font>, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>work<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ret<font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid code lengths set</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: code lengths ok\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* get length and distance code code lengths */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>nlen <font color='#5555FF'>+</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ndist<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>;;<font face='Lucida Console'>)</font> <b>{</b>
here <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lencode[<font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits<font face='Lucida Console'>)</font>];
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'>=</font> bits<font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
<font color='#BB00BB'>PULLBYTE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.val <font color='#5555FF'><</font> <font color='#979000'>16</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> here.val;
<b>}</b>
<font color='#0000FF'>else</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.val <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>16</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font>here.bits <font color='#5555FF'>+</font> <font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid bit length repeat</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
len <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'>-</font> <font color='#979000'>1</font>]<font face='Lucida Console'>)</font>;
copy <font color='#5555FF'>=</font> <font color='#979000'>3</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.val <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>17</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font>here.bits <font color='#5555FF'>+</font> <font color='#979000'>3</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font>;
len <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
copy <font color='#5555FF'>=</font> <font color='#979000'>3</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>else</font> <b>{</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font>here.bits <font color='#5555FF'>+</font> <font color='#979000'>7</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font>;
len <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
copy <font color='#5555FF'>=</font> <font color='#979000'>11</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font><font color='#979000'>7</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font><font color='#979000'>7</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have <font color='#5555FF'>+</font> copy <font color='#5555FF'>></font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>nlen <font color='#5555FF'>+</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ndist<font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid bit length repeat</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>copy<font color='#5555FF'>-</font><font color='#5555FF'>-</font><font face='Lucida Console'>)</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[state<font color='#5555FF'>-</font><font color='#5555FF'>></font>have<font color='#5555FF'>+</font><font color='#5555FF'>+</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font><font face='Lucida Console'>)</font>len;
<b>}</b>
<b>}</b>
<font color='#009900'>/* handle error breaks in while */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> BAD<font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
<font color='#009900'>/* check for end-of-block code (better have one) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens[<font color='#979000'>256</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid code -- missing end-of-block</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#009900'>/* build code tables -- note: do not change the lenbits or distbits
values here (9 and 6) without reading the comments in inftrees.h
concerning the ENOUGH constants, which depend on those values */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>codes;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lencode <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>code <font color='#0000FF'>const</font> FAR <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits <font color='#5555FF'>=</font> <font color='#979000'>9</font>;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>inflate_table</font><font face='Lucida Console'>(</font>LENS, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>nlen, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next<font face='Lucida Console'>)</font>,
<font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits<font face='Lucida Console'>)</font>, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>work<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ret<font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid literal/lengths set</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distcode <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>code <font color='#0000FF'>const</font> FAR <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distbits <font color='#5555FF'>=</font> <font color='#979000'>6</font>;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>inflate_table</font><font face='Lucida Console'>(</font>DISTS, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lens <font color='#5555FF'>+</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>nlen, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>ndist,
<font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>next<font face='Lucida Console'>)</font>, <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distbits<font face='Lucida Console'>)</font>, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>work<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ret<font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid distances set</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: codes ok\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> LEN;
<font color='#0000FF'>case</font> LEN:
<font color='#009900'>/* use inflate_fast() if we have enough input and output */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>have <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>6</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> left <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>258</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>RESTORE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>whave <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize<font face='Lucida Console'>)</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>whave <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize <font color='#5555FF'>-</font> left;
<font color='#BB00BB'>inflate_fast</font><font face='Lucida Console'>(</font>strm, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>LOAD</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#009900'>/* get a literal, length, or end-of-block code */</font>
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>;;<font face='Lucida Console'>)</font> <b>{</b>
here <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lencode[<font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lenbits<font face='Lucida Console'>)</font>];
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'>=</font> bits<font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
<font color='#BB00BB'>PULLBYTE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.op <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font face='Lucida Console'>(</font>here.op <font color='#5555FF'>&</font> <font color='#979000'>0xf0</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
last <font color='#5555FF'>=</font> here;
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>;;<font face='Lucida Console'>)</font> <b>{</b>
here <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>lencode[last.val <font color='#5555FF'>+</font>
<font face='Lucida Console'>(</font><font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>last.bits <font color='#5555FF'>+</font> last.op<font face='Lucida Console'>)</font> <font color='#5555FF'>></font><font color='#5555FF'>></font> last.bits<font face='Lucida Console'>)</font>];
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>last.bits <font color='#5555FF'>+</font> here.bits<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'>=</font> bits<font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
<font color='#BB00BB'>PULLBYTE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>last.bits<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>here.val;
<font color='#009900'>/* process literal */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.op <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>Tracevv</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, here.val <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>0x20</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> here.val <font color='#5555FF'><</font> <font color='#979000'>0x7f</font> ?
"<font color='#CC0000'>inflate: literal '%c'\n</font>" :
"<font color='#CC0000'>inflate: literal 0x%02x\n</font>", here.val<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>ROOM</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#5555FF'>*</font>put<font color='#5555FF'>+</font><font color='#5555FF'>+</font> <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length<font face='Lucida Console'>)</font>;
left<font color='#5555FF'>-</font><font color='#5555FF'>-</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> LEN;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#009900'>/* process end of block */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.op <font color='#5555FF'>&</font> <font color='#979000'>32</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>Tracevv</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: end of block\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> TYPE;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#009900'>/* invalid code */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.op <font color='#5555FF'>&</font> <font color='#979000'>64</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid literal/length code</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#009900'>/* length code -- get extra bits, if any */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>here.op<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> <font color='#979000'>15</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>Tracevv</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: length %u\n</font>", state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* get distance code */</font>
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>;;<font face='Lucida Console'>)</font> <b>{</b>
here <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distcode[<font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distbits<font face='Lucida Console'>)</font>];
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'>=</font> bits<font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
<font color='#BB00BB'>PULLBYTE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>here.op <font color='#5555FF'>&</font> <font color='#979000'>0xf0</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
last <font color='#5555FF'>=</font> here;
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>;;<font face='Lucida Console'>)</font> <b>{</b>
here <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>distcode[last.val <font color='#5555FF'>+</font>
<font face='Lucida Console'>(</font><font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>last.bits <font color='#5555FF'>+</font> last.op<font face='Lucida Console'>)</font> <font color='#5555FF'>></font><font color='#5555FF'>></font> last.bits<font face='Lucida Console'>)</font>];
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>last.bits <font color='#5555FF'>+</font> here.bits<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'>=</font> bits<font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
<font color='#BB00BB'>PULLBYTE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>last.bits<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>here.bits<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>here.op <font color='#5555FF'>&</font> <font color='#979000'>64</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid distance code</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>offset <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>here.val;
<font color='#009900'>/* get distance extra bits, if any */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>here.op<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> <font color='#979000'>15</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>NEEDBITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>offset <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>BITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>DROPBITS</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>extra<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>offset <font color='#5555FF'>></font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>whave <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize ?
left : <font color='#979000'>0</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>"<font color='#CC0000'>invalid distance too far back</font>";
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> BAD;
<font color='#0000FF'>break</font>;
<b>}</b>
<font color='#BB00BB'>Tracevv</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: distance %u\n</font>", state<font color='#5555FF'>-</font><font color='#5555FF'>></font>offset<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* copy match from window to output */</font>
<font color='#0000FF'>do</font> <b>{</b>
<font color='#BB00BB'>ROOM</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
copy <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize <font color='#5555FF'>-</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>offset;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>copy <font color='#5555FF'><</font> left<font face='Lucida Console'>)</font> <b>{</b>
from <font color='#5555FF'>=</font> put <font color='#5555FF'>+</font> copy;
copy <font color='#5555FF'>=</font> left <font color='#5555FF'>-</font> copy;
<b>}</b>
<font color='#0000FF'>else</font> <b>{</b>
from <font color='#5555FF'>=</font> put <font color='#5555FF'>-</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>offset;
copy <font color='#5555FF'>=</font> left;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>copy <font color='#5555FF'>></font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length<font face='Lucida Console'>)</font> copy <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>-</font><font color='#5555FF'>=</font> copy;
left <font color='#5555FF'>-</font><font color='#5555FF'>=</font> copy;
<font color='#0000FF'>do</font> <b>{</b>
<font color='#5555FF'>*</font>put<font color='#5555FF'>+</font><font color='#5555FF'>+</font> <font color='#5555FF'>=</font> <font color='#5555FF'>*</font>from<font color='#5555FF'>+</font><font color='#5555FF'>+</font>;
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#5555FF'>-</font><font color='#5555FF'>-</font>copy<font face='Lucida Console'>)</font>;
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>length <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> DONE:
<font color='#009900'>/* inflate stream terminated properly -- write leftover output */</font>
ret <font color='#5555FF'>=</font> Z_STREAM_END;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>left <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>out</font><font face='Lucida Console'>(</font>out_desc, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>window, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>wsize <font color='#5555FF'>-</font> left<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
ret <font color='#5555FF'>=</font> Z_BUF_ERROR;
<b>}</b>
<font color='#0000FF'>goto</font> inf_leave;
<font color='#0000FF'>case</font> BAD:
ret <font color='#5555FF'>=</font> Z_DATA_ERROR;
<font color='#0000FF'>goto</font> inf_leave;
<font color='#0000FF'>default</font>: <font color='#009900'>/* can't happen, but makes compilers happy */</font>
ret <font color='#5555FF'>=</font> Z_STREAM_ERROR;
<font color='#0000FF'>goto</font> inf_leave;
<b>}</b>
<font color='#009900'>/* Return unused input */</font>
inf_leave:
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> next;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> have;
<font color='#0000FF'>return</font> ret;
<b>}</b>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='inflateBackEnd'></a>inflateBackEnd</b><font face='Lucida Console'>(</font>strm<font face='Lucida Console'>)</font>
z_streamp strm;
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL <font color='#5555FF'>|</font><font color='#5555FF'>|</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>state <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_NULL <font color='#5555FF'>|</font><font color='#5555FF'>|</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zfree <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>free_func<font face='Lucida Console'>)</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#BB00BB'>ZFREE</font><font face='Lucida Console'>(</font>strm, strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>state<font face='Lucida Console'>)</font>;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>state <font color='#5555FF'>=</font> Z_NULL;
<font color='#BB00BB'>Tracev</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>stderr, "<font color='#CC0000'>inflate: end\n</font>"<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> Z_OK;
<b>}</b>
</pre></body></html> |