8 files changed, 49 insertions, 545 deletions

diff --git a/contrib/README.contrib b/contrib/README.contrib
index 7778980..732d48c 100644
--- a/contrib/README.contrib
+++ b/contrib/README.contrib
@@ -22,9 +22,6 @@ delphi/     by Cosmin Truta <cosmint@cs.ubbcluj.ro>
 dotzlib/    by Henrik Ravn <henrik@ravn.com>
         Support for Microsoft .Net and Visual C++ .Net
 
-gzappend/   by Mark Adler <madler@alumni.caltech.edu>
-        append to a gzip file -- illustrates the use of Z_BLOCK
-
 infback9/   by Mark Adler <madler@alumni.caltech.edu>
         Unsupported diffs to infback to decode the deflate64 format
 
diff --git a/contrib/delphi/ZLib.pas b/contrib/delphi/ZLib.pas
index 8853866..b9d33e2 100644
--- a/contrib/delphi/ZLib.pas
+++ b/contrib/delphi/ZLib.pas
@@ -344,7 +344,7 @@ begin
     strm.avail_out := OutBytes;
     DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
     try
-      while DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END do
+      while DCheck(inflate(strm, Z_NO_FLUSH)) <> Z_STREAM_END do
       begin
         P := OutBuf;
         Inc(OutBytes, BufInc);
diff --git a/contrib/gzappend/gzappend.c b/contrib/gzappend/gzappend.c
deleted file mode 100644
index e9e878e..0000000
--- a/contrib/gzappend/gzappend.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/* gzappend -- command to append to a gzip file
-
-  Copyright (C) 2003 Mark Adler, all rights reserved
-  version 1.1, 4 Nov 2003
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the author be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Mark Adler    madler@alumni.caltech.edu
- */
-
-/*
- * Change history:
- *
- * 1.0  19 Oct 2003     - First version
- * 1.1   4 Nov 2003     - Expand and clarify some comments and notes
- *                      - Add version and copyright to help
- *                      - Send help to stdout instead of stderr
- *                      - Add some preemptive typecasts
- *                      - Add L to constants in lseek() calls
- *                      - Remove some debugging information in error messages
- *                      - Use new data_type definition for zlib 1.2.1
- *                      - Simplfy and unify file operations
- *                      - Finish off gzip file in gztack()
- *                      - Use deflatePrime() instead of adding empty blocks
- *                      - Keep gzip file clean on appended file read errors
- *                      - Use in-place rotate instead of auxiliary buffer
- *                        (Why you ask?  Because it was fun to write!)
- */
-
-/*
-   gzappend takes a gzip file and appends to it, compressing files from the
-   command line or data from stdin.  The gzip file is written to directly, to
-   avoid copying that file, in case it's large.  Note that this results in the
-   unfriendly behavior that if gzappend fails, the gzip file is corrupted.
-
-   This program was written to illustrate the use of the new Z_BLOCK option of
-   zlib 1.2.x's inflate() function.  This option returns from inflate() at each
-   block boundary to facilitate locating and modifying the last block bit at
-   the start of the final deflate block.  Also whether using Z_BLOCK or not,
-   another required feature of zlib 1.2.x is that inflate() now provides the
-   number of unusued bits in the last input byte used.  gzappend will not work
-   with versions of zlib earlier than 1.2.1.
-
-   gzappend first decompresses the gzip file internally, discarding all but
-   the last 32K of uncompressed data, and noting the location of the last block
-   bit and the number of unused bits in the last byte of the compressed data.
-   The gzip trailer containing the CRC-32 and length of the uncompressed data
-   is verified.  This trailer will be later overwritten.
-
-   Then the last block bit is cleared by seeking back in the file and rewriting
-   the byte that contains it.  Seeking forward, the last byte of the compressed
-   data is saved along with the number of unused bits to initialize deflate.
-
-   A deflate process is initialized, using the last 32K of the uncompressed
-   data from the gzip file to initialize the dictionary.  If the total
-   uncompressed data was less than 32K, then all of it is used to initialize
-   the dictionary.  The deflate output bit buffer is also initialized with the
-   last bits from the original deflate stream.  From here on, the data to
-   append is simply compressed using deflate, and written to the gzip file.
-   When that is complete, the new CRC-32 and uncompressed length are written
-   as the trailer of the gzip file.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include "zlib.h"
-
-#define local static
-#define LGCHUNK 14
-#define CHUNK (1U << LGCHUNK)
-#define DSIZE 32768U
-
-/* print an error message and terminate with extreme prejudice */
-local void bye(char *msg1, char *msg2)
-{
-    fprintf(stderr, "gzappend error: %s%s\n", msg1, msg2);
-    exit(1);
-}
-
-/* return the greatest common divisor of a and b using Euclid's algorithm,
-   modified to be fast when one argument much greater than the other, and
-   coded to avoid unnecessary swapping */
-local unsigned gcd(unsigned a, unsigned b)
-{
-    unsigned c;
-
-    while (a && b)
-        if (a > b) {
-            c = b;
-            while (a - c >= c)
-                c <<= 1;
-            a -= c;
-        }
-        else {
-            c = a;
-            while (b - c >= c)
-                c <<= 1;
-            b -= c;
-        }
-    return a + b;
-}
-
-/* rotate list[0..len-1] left by rot positions, in place */
-local void rotate(unsigned char *list, unsigned len, unsigned rot)
-{
-    unsigned char tmp;
-    unsigned cycles;
-    unsigned char *start, *last, *to, *from;
-
-    /* normalize rot and handle degenerate cases */
-    if (len < 2) return;
-    if (rot >= len) rot %= len;
-    if (rot == 0) return;
-
-    /* pointer to last entry in list */
-    last = list + (len - 1);
-
-    /* do simple left shift by one */
-    if (rot == 1) {
-        tmp = *list;
-        memcpy(list, list + 1, len - 1);
-        *last = tmp;
-        return;
-    }
-
-    /* do simple right shift by one */
-    if (rot == len - 1) {
-        tmp = *last;
-        memmove(list + 1, list, len - 1);
-        *list = tmp;
-        return;
-    }
-
-    /* otherwise do rotate as a set of cycles in place */
-    cycles = gcd(len, rot);             /* number of cycles */
-    do {
-        start = from = list + cycles;   /* start index is arbitrary */
-        tmp = *from;                    /* save entry to be overwritten */
-        for (;;) {
-            to = from;                  /* next step in cycle */
-            from += rot;                /* go right rot positions */
-            if (from > last) from -= len;   /* (pointer better not wrap) */
-            if (from == start) break;   /* all but one shifted */
-            *to = *from;                /* shift left */
-        }
-        *to = tmp;                      /* complete the circle */
-    } while (--cycles);
-}
-
-/* structure for gzip file read operations */
-typedef struct {
-    int fd;                     /* file descriptor */
-    int size;                   /* 1 << size is bytes in buf */
-    unsigned left;              /* bytes available at next */
-    unsigned char *buf;         /* buffer */
-    unsigned char *next;        /* next byte in buffer */
-    char *name;                 /* file name for error messages */
-} file;
-
-/* reload buffer */
-local int readin(file *in)
-{
-    int len;
-
-    len = read(in->fd, in->buf, 1 << in->size);
-    if (len == -1) bye("error reading ", in->name);
-    in->left = (unsigned)len;
-    in->next = in->buf;
-    return len;
-}
-
-/* read from file in, exit if end-of-file */
-local int readmore(file *in)
-{
-    if (readin(in) == 0) bye("unexpected end of ", in->name);
-    return 0;
-}
-
-#define read1(in) (in->left == 0 ? readmore(in) : 0, \
-                   in->left--, *(in->next)++)
-
-/* skip over n bytes of in */
-local void skip(file *in, unsigned n)
-{
-    unsigned bypass;
-
-    if (n > in->left) {
-        n -= in->left;
-        bypass = n & ~((1U << in->size) - 1);
-        if (bypass) {
-            if (lseek(in->fd, (off_t)bypass, SEEK_CUR) == -1)
-                bye("seeking ", in->name);
-            n -= bypass;
-        }
-        readmore(in);
-        if (n > in->left)
-            bye("unexpected end of ", in->name);
-    }
-    in->left -= n;
-    in->next += n;
-}
-
-/* read a four-byte unsigned integer, little-endian, from in */
-unsigned long read4(file *in)
-{
-    unsigned long val;
-
-    val = read1(in);
-    val += (unsigned)read1(in) << 8;
-    val += (unsigned long)read1(in) << 16;
-    val += (unsigned long)read1(in) << 24;
-    return val;
-}
-
-/* skip over gzip header */
-local void gzheader(file *in)
-{
-    int flags;
-    unsigned n;
-
-    if (read1(in) != 31 || read1(in) != 139) bye(in->name, " not a gzip file");
-    if (read1(in) != 8) bye("unknown compression method in", in->name);
-    flags = read1(in);
-    if (flags & 0xe0) bye("unknown header flags set in", in->name);
-    skip(in, 6);
-    if (flags & 4) {
-        n = read1(in);
-        n += (unsigned)(read1(in)) << 8;
-        skip(in, n);
-    }
-    if (flags & 8) while (read1(in) != 0) ;
-    if (flags & 16) while (read1(in) != 0) ;
-    if (flags & 2) skip(in, 2);
-}
-
-/* decompress gzip file "name", return strm with a deflate stream ready to
-   continue compression of the data in the gzip file, and return a file
-   descriptor pointing to where to write the compressed data -- the deflate
-   stream is initialized to compress using level "level" */
-local int gzscan(char *name, z_stream *strm, int level)
-{
-    int ret, lastbit, left, full;
-    unsigned have;
-    unsigned long crc, tot;
-    unsigned char *window;
-    off_t lastoff, end;
-    file gz;
-
-    /* open gzip file */
-    gz.name = name;
-    gz.fd = open(name, O_RDWR, 0);
-    if (gz.fd == -1) bye("cannot open ", name);
-    gz.buf = malloc(CHUNK);
-    if (gz.buf == NULL) bye("out of memory", "");
-    gz.size = LGCHUNK;
-    gz.left = 0;
-
-    /* skip gzip header */
-    gzheader(&gz);
-
-    /* prepare to decompress */
-    window = malloc(DSIZE);
-    if (window == NULL) bye("out of memory", "");
-    strm->zalloc = Z_NULL;
-    strm->zfree = Z_NULL;
-    strm->opaque = Z_NULL;
-    ret = inflateInit2(strm, -15);
-    if (ret != Z_OK) bye("out of memory", " or library mismatch");
-
-    /* decompress the deflate stream, saving append information */
-    lastbit = 0;
-    lastoff = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
-    left = 0;
-    strm->avail_in = gz.left;
-    strm->next_in = gz.next;
-    crc = crc32(0L, Z_NULL, 0);
-    have = full = 0;
-    do {
-        /* if needed, get more input */
-        if (strm->avail_in == 0) {
-            readmore(&gz);
-            strm->avail_in = gz.left;
-            strm->next_in = gz.next;
-        }
-
-        /* set up output to next available section of sliding window */
-        strm->avail_out = DSIZE - have;
-        strm->next_out = window + have;
-
-        /* inflate and check for errors */
-        ret = inflate(strm, Z_BLOCK);
-        if (ret == Z_STREAM_ERROR) bye("internal stream error!", "");
-        if (ret == Z_MEM_ERROR) bye("out of memory", "");
-        if (ret == Z_DATA_ERROR)
-            bye("invalid compressed data--format violated in", name);
-
-        /* update crc and sliding window pointer */
-        crc = crc32(crc, window + have, DSIZE - have - strm->avail_out);
-        if (strm->avail_out)
-            have = DSIZE - strm->avail_out;
-        else {
-            have = 0;
-            full = 1;
-        }
-
-        /* process end of block */
-        if (strm->data_type & 128) {
-            if (strm->data_type & 64)
-                left = strm->data_type & 0x1f;
-            else {
-                lastbit = strm->data_type & 0x1f;
-                lastoff = lseek(gz.fd, 0L, SEEK_CUR) - strm->avail_in;
-            }
-        }
-    } while (ret != Z_STREAM_END);
-    inflateEnd(strm);
-    gz.left = strm->avail_in;
-    gz.next = strm->next_in;
-
-    /* save the location of the end of the compressed data */
-    end = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
-
-    /* check gzip trailer and save total for deflate */
-    if (crc != read4(&gz))
-        bye("invalid compressed data--crc mismatch in ", name);
-    tot = strm->total_out;
-    if ((tot & 0xffffffffUL) != read4(&gz))
-        bye("invalid compressed data--length mismatch in", name);
-
-    /* if not at end of file, warn */
-    if (gz.left || readin(&gz))
-        fprintf(stderr,
-            "gzappend warning: junk at end of gzip file overwritten\n");
-
-    /* clear last block bit */
-    lseek(gz.fd, lastoff - (lastbit != 0), SEEK_SET);
-    if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
-    *gz.buf = (unsigned char)(*gz.buf ^ (1 << ((8 - lastbit) & 7)));
-    lseek(gz.fd, -1L, SEEK_CUR);
-    if (write(gz.fd, gz.buf, 1) != 1) bye("writing after seek to ", name);
-
-    /* if window wrapped, build dictionary from window by rotating */
-    if (full) {
-        rotate(window, DSIZE, have);
-        have = DSIZE;
-    }
-
-    /* set up deflate stream with window, crc, total_in, and leftover bits */
-    ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
-    if (ret != Z_OK) bye("out of memory", "");
-    deflateSetDictionary(strm, window, have);
-    strm->adler = crc;
-    strm->total_in = tot;
-    if (left) {
-        lseek(gz.fd, --end, SEEK_SET);
-        if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
-        deflatePrime(strm, 8 - left, *gz.buf);
-    }
-    lseek(gz.fd, end, SEEK_SET);
-
-    /* clean up and return */
-    free(window);
-    free(gz.buf);
-    return gz.fd;
-}
-
-/* append file "name" to gzip file gd using deflate stream strm -- if last
-   is true, then finish off the deflate stream at the end */
-local void gztack(char *name, int gd, z_stream *strm, int last)
-{
-    int fd, len, ret;
-    unsigned left;
-    unsigned char *in, *out;
-
-    /* open file to compress and append */
-    fd = 0;
-    if (name != NULL) {
-        fd = open(name, O_RDONLY, 0);
-        if (fd == -1)
-            fprintf(stderr, "gzappend warning: %s not found, skipping ...\n",
-                    name);
-    }
-
-    /* allocate buffers */
-    in = fd == -1 ? NULL : malloc(CHUNK);
-    out = malloc(CHUNK);
-    if (out == NULL) bye("out of memory", "");
-
-    /* compress input file and append to gzip file */
-    do {
-        /* get more input */
-        len = fd == -1 ? 0 : read(fd, in, CHUNK);
-        if (len == -1) {
-            fprintf(stderr,
-                    "gzappend warning: error reading %s, skipping rest ...\n",
-                    name);
-            len = 0;
-        }
-        strm->avail_in = (unsigned)len;
-        strm->next_in = in;
-        if (len) strm->adler = crc32(strm->adler, in, (unsigned)len);
-
-        /* compress and write all available output */
-        do {
-            strm->avail_out = CHUNK;
-            strm->next_out = out;
-            ret = deflate(strm, last && len == 0 ? Z_FINISH : Z_NO_FLUSH);
-            left = CHUNK - strm->avail_out;
-            while (left) {
-                len = write(gd, out + CHUNK - strm->avail_out - left, left);
-                if (len == -1) bye("writing gzip file", "");
-                left -= (unsigned)len;
-            }
-        } while (strm->avail_out == 0 && ret != Z_STREAM_END);
-    } while (len != 0);
-
-    /* write trailer after last entry */
-    if (last) {
-        deflateEnd(strm);
-        out[0] = (unsigned char)(strm->adler);
-        out[1] = (unsigned char)(strm->adler >> 8);
-        out[2] = (unsigned char)(strm->adler >> 16);
-        out[3] = (unsigned char)(strm->adler >> 24);
-        out[4] = (unsigned char)(strm->total_in);
-        out[5] = (unsigned char)(strm->total_in >> 8);
-        out[6] = (unsigned char)(strm->total_in >> 16);
-        out[7] = (unsigned char)(strm->total_in >> 24);
-        len = 8;
-        do {
-            ret = write(gd, out + 8 - len, len);
-            if (ret == -1) bye("writing gzip file", "");
-            len -= ret;
-        } while (len);
-        close(gd);
-    }
-
-    /* clean up and return */
-    free(out);
-    if (in != NULL) free(in);
-    if (fd > 0) close(fd);
-}
-
-/* process the compression level option if present, scan the gzip file, and
-   append the specified files, or append the data from stdin if no other file
-   names are provided on the command line -- the gzip file must be writable
-   and seekable */
-int main(int argc, char **argv)
-{
-    int gd, level;
-    z_stream strm;
-
-    /* ignore command name */
-    argv++;
-
-    /* provide usage if no arguments */
-    if (*argv == NULL) {
-        printf("gzappend 1.1 (4 Nov 2003) Copyright (C) 2003 Mark Adler\n");
-        printf(
-            "usage: gzappend [-level] file.gz [ addthis [ andthis ... ]]\n");
-        return 0;
-    }
-
-    /* set compression level */
-    level = Z_DEFAULT_COMPRESSION;
-    if (argv[0][0] == '-') {
-        if (argv[0][1] < '0' || argv[0][1] > '9' || argv[0][2] != 0)
-            bye("invalid compression level", "");
-        level = argv[0][1] - '0';
-        if (*++argv == NULL) bye("no gzip file name after options", "");
-    }
-
-    /* prepare to append to gzip file */
-    gd = gzscan(*argv++, &strm, level);
-
-    /* append files on command line, or from stdin if none */
-    if (*argv == NULL)
-        gztack(NULL, gd, &strm, 1);
-    else
-        do {
-            gztack(*argv, gd, &strm, argv[1] == NULL);
-        } while (*++argv != NULL);
-    return 0;
-}
diff --git a/contrib/infback9/inftree9.c b/contrib/infback9/inftree9.c
index 7325873..29bef6a 100644
--- a/contrib/infback9/inftree9.c
+++ b/contrib/infback9/inftree9.c
@@ -9,7 +9,7 @@
 #define MAXBITS 15
 
 const char inflate9_copyright[] =
-   " inflate9 1.2.2.1 Copyright 1995-2004 Mark Adler ";
+   " inflate9 1.2.2.2 Copyright 1995-2004 Mark Adler ";
 /*
   If you use the zlib library in a product, an acknowledgment is welcome
   in the documentation of your product. If for some reason you cannot
@@ -64,7 +64,7 @@ unsigned short FAR *work;
     static const unsigned short lext[31] = { /* Length codes 257..285 extra */
         128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
         130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
-        133, 133, 133, 133, 144, 77, 207};
+        133, 133, 133, 133, 144, 72, 199};
     static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
         1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
         65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
diff --git a/contrib/masmx86/gvmat32.asm b/contrib/masmx86/gvmat32.asm
index ec360e6..e841a7f 100644
--- a/contrib/masmx86/gvmat32.asm
+++ b/contrib/masmx86/gvmat32.asm
@@ -47,21 +47,25 @@
 
 
 
-;  all the +4 offsets are due to the addition of pending_buf_size (in zlib
+;  all the +addstr offsets are due to the addition of pending_buf_size in zlib 1.04
+;  and adding gzhead and gzindex in zlib 1.2.2.1
 ;  in the deflate_state structure since the asm code was first written
-;  (if you compile with zlib 1.0.4 or older, remove the +4).
+;  (if you compile with zlib 1.0.4 or older, set addstr to 0).
+;  (if you compiler with zlib between 1.04 and 1.2.1, set addstr to 4)
 ;  Note : these value are good with a 8 bytes boundary pack structure
-    dep_chain_length    equ     70h+4
-    dep_window          equ     2ch+4
-    dep_strstart        equ     60h+4
-    dep_prev_length     equ     6ch+4
-    dep_nice_match      equ     84h+4
-    dep_w_size          equ     20h+4
-    dep_prev            equ     34h+4
-    dep_w_mask          equ     28h+4
-    dep_good_match      equ     80h+4
-    dep_match_start     equ     64h+4
-    dep_lookahead       equ     68h+4
+
+    addstr              equ     4+8
+    dep_chain_length    equ     70h+addstr
+    dep_window          equ     2ch+addstr
+    dep_strstart        equ     60h+addstr
+    dep_prev_length     equ     6ch+addstr
+    dep_nice_match      equ     84h+addstr
+    dep_w_size          equ     20h+addstr
+    dep_prev            equ     34h+addstr
+    dep_w_mask          equ     28h+addstr
+    dep_good_match      equ     80h+addstr
+    dep_match_start     equ     64h+addstr
+    dep_lookahead       equ     68h+addstr
 
 
 _TEXT                   segment
@@ -597,19 +601,19 @@ curmatch	equ  esp + 60
 ;;; program to crash horribly, without so much as a warning at
 ;;; compile time. Sigh.)
 
-dsWSize         equ 36
-dsWMask         equ 44
-dsWindow        equ 48
-dsPrev          equ 56
-dsMatchLen      equ 88
-dsPrevMatch     equ 92
-dsStrStart      equ 100
-dsMatchStart    equ 104
-dsLookahead     equ 108
-dsPrevLen       equ 112
-dsMaxChainLen   equ 116
-dsGoodMatch     equ 132
-dsNiceMatch     equ 136
+dsWSize         equ 36+addstr-4
+dsWMask         equ 44+addstr-4
+dsWindow        equ 48+addstr-4
+dsPrev          equ 56+addstr-4
+dsMatchLen      equ 88+addstr-4
+dsPrevMatch     equ 92+addstr-4
+dsStrStart      equ 100+addstr-4
+dsMatchStart    equ 104+addstr-4
+dsLookahead     equ 108+addstr-4
+dsPrevLen       equ 112+addstr-4
+dsMaxChainLen   equ 116+addstr-4
+dsGoodMatch     equ 132+addstr-4
+dsNiceMatch     equ 136+addstr-4
 
 
 ;;; match.asm -- Pentium-Pro-optimized version of longest_match()
diff --git a/contrib/masmx86/inffas32.asm b/contrib/masmx86/inffas32.asm
index 7d76e1c..531bcef 100644
--- a/contrib/masmx86/inffas32.asm
+++ b/contrib/masmx86/inffas32.asm
@@ -84,17 +84,20 @@ dd	2147483647
 dd      4294967295
 
 
+; head was added in zlib 1.2.2.1, so we add addstr
+; set addstr to 0 with zlib 1.2.1 of below
+addstr           equ    4
 
 mode_state       equ    0       ;/* state->mode */
-wsize_state      equ    32      ;/* state->wsize */
-write_state      equ    (36+4)  ;/* state->write */
-window_state     equ    (40+4)  ;/* state->window */
-hold_state       equ    (44+4)  ;/* state->hold */
-bits_state       equ    (48+4)  ;/* state->bits */
-lencode_state    equ    (64+4)  ;/* state->lencode */
-distcode_state   equ    (68+4)  ;/* state->distcode */
-lenbits_state    equ    (72+4)  ;/* state->lenbits */
-distbits_state   equ    (76+4)  ;/* state->distbits */
+wsize_state      equ    32+addstr       ;/* state->wsize */
+write_state      equ    (36+4+addstr)   ;/* state->write */
+window_state     equ    (40+4+addstr)   ;/* state->window */
+hold_state       equ    (44+4+addstr)   ;/* state->hold */
+bits_state       equ    (48+4+addstr)   ;/* state->bits */
+lencode_state    equ    (64+4+addstr)   ;/* state->lencode */
+distcode_state   equ    (68+4+addstr)   ;/* state->distcode */
+lenbits_state    equ    (72+4+addstr)   ;/* state->lenbits */
+distbits_state   equ    (76+4+addstr)   ;/* state->distbits */
 
 
 ;;SECTION .text
diff --git a/contrib/vstudio/readme.txt b/contrib/vstudio/readme.txt
index 3a4b85c..e709d1b 100644
--- a/contrib/vstudio/readme.txt
+++ b/contrib/vstudio/readme.txt
@@ -1,4 +1,4 @@
-Building instructions for the DLL versions of Zlib 1.21

+Building instructions for the DLL versions of Zlib 1.2.x

 =======================================================

 

 This directory contains projects that build zlib and minizip using

diff --git a/contrib/vstudio/vc7/zlib.rc b/contrib/vstudio/vc7/zlib.rc
index cb779f7..d35cef0 100644
--- a/contrib/vstudio/vc7/zlib.rc
+++ b/contrib/vstudio/vc7/zlib.rc
@@ -2,8 +2,8 @@
 

 #define IDR_VERSION1  1

 IDR_VERSION1    VERSIONINFO     MOVEABLE IMPURE LOADONCALL DISCARDABLE

-  FILEVERSION    1,2,2,1

-  PRODUCTVERSION 1,2,2,1

+  FILEVERSION    1,2,2,2

+  PRODUCTVERSION 1,2,2,2

   FILEFLAGSMASK VS_FFI_FILEFLAGSMASK

   FILEFLAGS     0

   FILEOS        VOS_DOS_WINDOWS32

@@ -17,7 +17,7 @@ BEGIN
 

     BEGIN

       VALUE "FileDescription", "zlib data compression library\0"

-      VALUE "FileVersion",      "1.2.2.1\0"

+      VALUE "FileVersion",      "1.2.2.2\0"

       VALUE "InternalName",     "zlib\0"

       VALUE "OriginalFilename", "zlib.dll\0"

       VALUE "ProductName",      "ZLib.DLL\0"