From 7f726ddd89bea1d35b07b0704f2d2ae2b315bf92 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Mon, 18 Oct 2021 11:08:15 +0200
Subject: [PATCH] wininet: Use the bundled zlib.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/wininet/Makefile.in |    4 +-
 dlls/wininet/http.c      |    8 +-
 dlls/wininet/inflate.c   | 1916 --------------------------------------
 dlls/wininet/zlib.h      |  162 ----
 4 files changed, 5 insertions(+), 2085 deletions(-)
 delete mode 100644 dlls/wininet/inflate.c
 delete mode 100644 dlls/wininet/zlib.h

diff --git a/dlls/wininet/Makefile.in b/dlls/wininet/Makefile.in
index 0c1105a5c30..7e8111f811d 100644
--- a/dlls/wininet/Makefile.in
+++ b/dlls/wininet/Makefile.in
@@ -1,6 +1,7 @@
 MODULE    = wininet.dll
 IMPORTLIB = wininet
-IMPORTS   = mpr shlwapi shell32 user32 ws2_32 advapi32
+IMPORTS   = $(ZLIB_PE_LIBS) mpr shlwapi shell32 user32 ws2_32 advapi32
+EXTRAINCL = $(ZLIB_PE_CFLAGS)
 DELAYIMPORTS = secur32 crypt32 cryptui dhcpcsvc iphlpapi
 
 C_SRCS = \
@@ -9,7 +10,6 @@ C_SRCS = \
 	ftp.c \
 	gopher.c \
 	http.c \
-	inflate.c \
 	internet.c \
 	netconnection.c \
 	urlcache.c \
diff --git a/dlls/wininet/http.c b/dlls/wininet/http.c
index 1ca97cf3eb0..c493137896a 100644
--- a/dlls/wininet/http.c
+++ b/dlls/wininet/http.c
@@ -28,22 +28,21 @@
  */
 
 #include <stdlib.h>
-
-#include "winsock2.h"
-#include "ws2ipdef.h"
-
 #include <stdarg.h>
 #include <stdio.h>
 #include <time.h>
 #include <assert.h>
 #include <errno.h>
 #include <limits.h>
+#include <zlib.h>
 
 #include "windef.h"
 #include "winbase.h"
 #include "wininet.h"
 #include "winerror.h"
 #include "winternl.h"
+#include "winsock2.h"
+#include "ws2ipdef.h"
 #define NO_SHLWAPI_STREAM
 #define NO_SHLWAPI_REG
 #define NO_SHLWAPI_GDI
@@ -53,7 +52,6 @@
 #include "winuser.h"
 
 #include "internet.h"
-#include "zlib.h"
 #include "resource.h"
 #include "wine/debug.h"
 #include "wine/exception.h"
diff --git a/dlls/wininet/inflate.c b/dlls/wininet/inflate.c
deleted file mode 100644
index 1f2d65ea327..00000000000
--- a/dlls/wininet/inflate.c
+++ /dev/null
@@ -1,1916 +0,0 @@
-/* inflate.c -- zlib decompression
- *
- * Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
- *
- * This software is provided 'as-is', without any express or implied
- * warranty.  In no event will the authors 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.
- *
- * Jean-loup Gailly        Mark Adler
- * jloup@gzip.org          madler@alumni.caltech.edu
- */
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include "winternl.h"
-#include "zlib.h"
-
-#define DEF_WBITS MAX_WBITS
-#define zmemcpy memcpy
-#define zmemzero(dest, len) memset(dest, 0, len)
-
-#define Assert(cond,msg)
-#define Trace(x)
-#define Tracev(x)
-#define Tracevv(x)
-#define Tracecv(c,x)
-
-#define GUNZIP
-
-#define ZALLOC(strm, items, size) \
-           (*((strm)->zalloc))((strm)->opaque, (items), (size))
-#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
-#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
-
-/* Reverse the bytes in a 32-bit value */
-#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
-                    (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
-
-#define BASE 65521U     /* largest prime smaller than 65536 */
-#define NMAX 5552
-/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
-
-#define DO1(buf,i)  {adler += (buf)[i]; sum2 += adler;}
-#define DO2(buf,i)  DO1(buf,i); DO1(buf,i+1);
-#define DO4(buf,i)  DO2(buf,i); DO2(buf,i+2);
-#define DO8(buf,i)  DO4(buf,i); DO4(buf,i+4);
-#define DO16(buf)   DO8(buf,0); DO8(buf,8);
-
-#define MOD(a) a %= BASE
-#define MOD28(a) a %= BASE
-#define MOD63(a) a %= BASE
-
-static uLong adler32( uLong adler, const Bytef *buf, uInt len )
-{
-    unsigned long sum2;
-    unsigned n;
-
-    /* split Adler-32 into component sums */
-    sum2 = (adler >> 16) & 0xffff;
-    adler &= 0xffff;
-
-    /* in case user likes doing a byte at a time, keep it fast */
-    if (len == 1) {
-        adler += buf[0];
-        if (adler >= BASE)
-            adler -= BASE;
-        sum2 += adler;
-        if (sum2 >= BASE)
-            sum2 -= BASE;
-        return adler | (sum2 << 16);
-    }
-
-    /* initial Adler-32 value (deferred check for len == 1 speed) */
-    if (buf == Z_NULL)
-        return 1L;
-
-    /* in case short lengths are provided, keep it somewhat fast */
-    if (len < 16) {
-        while (len--) {
-            adler += *buf++;
-            sum2 += adler;
-        }
-        if (adler >= BASE)
-            adler -= BASE;
-        MOD28(sum2);            /* only added so many BASE's */
-        return adler | (sum2 << 16);
-    }
-
-    /* do length NMAX blocks -- requires just one modulo operation */
-    while (len >= NMAX) {
-        len -= NMAX;
-        n = NMAX / 16;          /* NMAX is divisible by 16 */
-        do {
-            DO16(buf);          /* 16 sums unrolled */
-            buf += 16;
-        } while (--n);
-        MOD(adler);
-        MOD(sum2);
-    }
-
-    /* do remaining bytes (less than NMAX, still just one modulo) */
-    if (len) {                  /* avoid modulos if none remaining */
-        while (len >= 16) {
-            len -= 16;
-            DO16(buf);
-            buf += 16;
-        }
-        while (len--) {
-            adler += *buf++;
-            sum2 += adler;
-        }
-        MOD(adler);
-        MOD(sum2);
-    }
-
-    /* return recombined sums */
-    return adler | (sum2 << 16);
-}
-
-typedef struct {
-    unsigned char op;           /* operation, extra bits, table bits */
-    unsigned char bits;         /* bits in this part of the code */
-    unsigned short val;         /* offset in table or code value */
-} code;
-
-#define ENOUGH_LENS 852
-#define ENOUGH_DISTS 592
-#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
-
-/* Type of code to build for inflate_table() */
-typedef enum {
-    CODES,
-    LENS,
-    DISTS
-} codetype;
-
-/* Possible inflate modes between inflate() calls */
-typedef enum {
-    HEAD = 16180,   /* i: waiting for magic header */
-    FLAGS,      /* i: waiting for method and flags (gzip) */
-    TIME,       /* i: waiting for modification time (gzip) */
-    OS,         /* i: waiting for extra flags and operating system (gzip) */
-    EXLEN,      /* i: waiting for extra length (gzip) */
-    EXTRA,      /* i: waiting for extra bytes (gzip) */
-    NAME,       /* i: waiting for end of file name (gzip) */
-    COMMENT,    /* i: waiting for end of comment (gzip) */
-    HCRC,       /* i: waiting for header crc (gzip) */
-    DICTID,     /* i: waiting for dictionary check value */
-    DICT,       /* waiting for inflateSetDictionary() call */
-        TYPE,       /* i: waiting for type bits, including last-flag bit */
-        TYPEDO,     /* i: same, but skip check to exit inflate on new block */
-        STORED,     /* i: waiting for stored size (length and complement) */
-        COPY_,      /* i/o: same as COPY below, but only first time in */
-        COPY,       /* i/o: waiting for input or output to copy stored block */
-        TABLE,      /* i: waiting for dynamic block table lengths */
-        LENLENS,    /* i: waiting for code length code lengths */
-        CODELENS,   /* i: waiting for length/lit and distance code lengths */
-            LEN_,       /* i: same as LEN below, but only first time in */
-            LEN,        /* i: waiting for length/lit/eob code */
-            LENEXT,     /* i: waiting for length extra bits */
-            DIST,       /* i: waiting for distance code */
-            DISTEXT,    /* i: waiting for distance extra bits */
-            MATCH,      /* o: waiting for output space to copy string */
-            LIT,        /* o: waiting for output space to write literal */
-    CHECK,      /* i: waiting for 32-bit check value */
-    LENGTH,     /* i: waiting for 32-bit length (gzip) */
-    DONE,       /* finished check, done -- remain here until reset */
-    BAD,        /* got a data error -- remain here until reset */
-    MEM,        /* got an inflate() memory error -- remain here until reset */
-    SYNC        /* looking for synchronization bytes to restart inflate() */
-} inflate_mode;
-
-/* State maintained between inflate() calls -- approximately 7K bytes, not
-   including the allocated sliding window, which is up to 32K bytes. */
-struct inflate_state {
-    z_streamp strm;             /* pointer back to this zlib stream */
-    inflate_mode mode;          /* current inflate mode */
-    int last;                   /* true if processing last block */
-    int wrap;                   /* bit 0 true for zlib, bit 1 true for gzip,
-                                   bit 2 true to validate check value */
-    int havedict;               /* true if dictionary provided */
-    int flags;                  /* gzip header method and flags (0 if zlib) */
-    unsigned dmax;              /* zlib header max distance (INFLATE_STRICT) */
-    unsigned long check;        /* protected copy of check value */
-    unsigned long total;        /* protected copy of output count */
-    gz_headerp head;            /* where to save gzip header information */
-        /* sliding window */
-    unsigned wbits;             /* log base 2 of requested window size */
-    unsigned wsize;             /* window size or zero if not using window */
-    unsigned whave;             /* valid bytes in the window */
-    unsigned wnext;             /* window write index */
-    unsigned char FAR *window;  /* allocated sliding window, if needed */
-        /* bit accumulator */
-    unsigned long hold;         /* input bit accumulator */
-    unsigned bits;              /* number of bits in "in" */
-        /* for string and stored block copying */
-    unsigned length;            /* literal or length of data to copy */
-    unsigned offset;            /* distance back to copy string from */
-        /* for table and code decoding */
-    unsigned extra;             /* extra bits needed */
-        /* fixed and dynamic code tables */
-    code const FAR *lencode;    /* starting table for length/literal codes */
-    code const FAR *distcode;   /* starting table for distance codes */
-    unsigned lenbits;           /* index bits for lencode */
-    unsigned distbits;          /* index bits for distcode */
-        /* dynamic table building */
-    unsigned ncode;             /* number of code length code lengths */
-    unsigned nlen;              /* number of length code lengths */
-    unsigned ndist;             /* number of distance code lengths */
-    unsigned have;              /* number of code lengths in lens[] */
-    code FAR *next;             /* next available space in codes[] */
-    unsigned short lens[320];   /* temporary storage for code lengths */
-    unsigned short work[288];   /* work area for code table building */
-    code codes[ENOUGH];         /* space for code tables */
-    int sane;                   /* if false, allow invalid distance too far */
-    int back;                   /* bits back of last unprocessed length/lit */
-    unsigned was;               /* initial length of match */
-};
-
-/*
-   Decode literal, length, and distance codes and write out the resulting
-   literal and match bytes until either not enough input or output is
-   available, an end-of-block is encountered, or a data error is encountered.
-   When large enough input and output buffers are supplied to inflate(), for
-   example, a 16K input buffer and a 64K output buffer, more than 95% of the
-   inflate execution time is spent in this routine.
-
-   Entry assumptions:
-
-        state->mode == LEN
-        strm->avail_in >= 6
-        strm->avail_out >= 258
-        start >= strm->avail_out
-        state->bits < 8
-
-   On return, state->mode is one of:
-
-        LEN -- ran out of enough output space or enough available input
-        TYPE -- reached end of block code, inflate() to interpret next block
-        BAD -- error in block data
-
-   Notes:
-
-    - The maximum input bits used by a length/distance pair is 15 bits for the
-      length code, 5 bits for the length extra, 15 bits for the distance code,
-      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
-      Therefore if strm->avail_in >= 6, then there is enough input to avoid
-      checking for available input while decoding.
-
-    - The maximum bytes that a single length/distance pair can output is 258
-      bytes, which is the maximum length that can be coded.  inflate_fast()
-      requires strm->avail_out >= 258 for each loop to avoid checking for
-      output space.
- */
-static void inflate_fast( z_streamp strm, unsigned start )
-{
-    struct inflate_state FAR *state;
-    z_const unsigned char FAR *in;      /* local strm->next_in */
-    z_const unsigned char FAR *last;    /* have enough input while in < last */
-    unsigned char FAR *out;     /* local strm->next_out */
-    unsigned char FAR *beg;     /* inflate()'s initial strm->next_out */
-    unsigned char FAR *end;     /* while out < end, enough space available */
-#ifdef INFLATE_STRICT
-    unsigned dmax;              /* maximum distance from zlib header */
-#endif
-    unsigned wsize;             /* window size or zero if not using window */
-    unsigned whave;             /* valid bytes in the window */
-    unsigned wnext;             /* window write index */
-    unsigned char FAR *window;  /* allocated sliding window, if wsize != 0 */
-    unsigned long hold;         /* local strm->hold */
-    unsigned bits;              /* local strm->bits */
-    code const FAR *lcode;      /* local strm->lencode */
-    code const FAR *dcode;      /* local strm->distcode */
-    unsigned lmask;             /* mask for first level of length codes */
-    unsigned dmask;             /* mask for first level of distance codes */
-    code here;                  /* retrieved table entry */
-    unsigned op;                /* code bits, operation, extra bits, or */
-                                /*  window position, window bytes to copy */
-    unsigned len;               /* match length, unused bytes */
-    unsigned dist;              /* match distance */
-    unsigned char FAR *from;    /* where to copy match from */
-
-    /* copy state to local variables */
-    state = (struct inflate_state FAR *)strm->state;
-    in = strm->next_in;
-    last = in + (strm->avail_in - 5);
-    out = strm->next_out;
-    beg = out - (start - strm->avail_out);
-    end = out + (strm->avail_out - 257);
-#ifdef INFLATE_STRICT
-    dmax = state->dmax;
-#endif
-    wsize = state->wsize;
-    whave = state->whave;
-    wnext = state->wnext;
-    window = state->window;
-    hold = state->hold;
-    bits = state->bits;
-    lcode = state->lencode;
-    dcode = state->distcode;
-    lmask = (1U << state->lenbits) - 1;
-    dmask = (1U << state->distbits) - 1;
-
-    /* decode literals and length/distances until end-of-block or not enough
-       input data or output space */
-    do {
-        if (bits < 15) {
-            hold += (unsigned long)(*in++) << bits;
-            bits += 8;
-            hold += (unsigned long)(*in++) << bits;
-            bits += 8;
-        }
-        here = lcode[hold & lmask];
-      dolen:
-        op = (unsigned)(here.bits);
-        hold >>= op;
-        bits -= op;
-        op = (unsigned)(here.op);
-        if (op == 0) {                          /* literal */
-            Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
-                    "inflate:         literal '%c'\n" :
-                    "inflate:         literal 0x%02x\n", here.val));
-            *out++ = (unsigned char)(here.val);
-        }
-        else if (op & 16) {                     /* length base */
-            len = (unsigned)(here.val);
-            op &= 15;                           /* number of extra bits */
-            if (op) {
-                if (bits < op) {
-                    hold += (unsigned long)(*in++) << bits;
-                    bits += 8;
-                }
-                len += (unsigned)hold & ((1U << op) - 1);
-                hold >>= op;
-                bits -= op;
-            }
-            Tracevv((stderr, "inflate:         length %u\n", len));
-            if (bits < 15) {
-                hold += (unsigned long)(*in++) << bits;
-                bits += 8;
-                hold += (unsigned long)(*in++) << bits;
-                bits += 8;
-            }
-            here = dcode[hold & dmask];
-          dodist:
-            op = (unsigned)(here.bits);
-            hold >>= op;
-            bits -= op;
-            op = (unsigned)(here.op);
-            if (op & 16) {                      /* distance base */
-                dist = (unsigned)(here.val);
-                op &= 15;                       /* number of extra bits */
-                if (bits < op) {
-                    hold += (unsigned long)(*in++) << bits;
-                    bits += 8;
-                    if (bits < op) {
-                        hold += (unsigned long)(*in++) << bits;
-                        bits += 8;
-                    }
-                }
-                dist += (unsigned)hold & ((1U << op) - 1);
-#ifdef INFLATE_STRICT
-                if (dist > dmax) {
-                    strm->msg = (char *)"invalid distance too far back";
-                    state->mode = BAD;
-                    break;
-                }
-#endif
-                hold >>= op;
-                bits -= op;
-                Tracevv((stderr, "inflate:         distance %u\n", dist));
-                op = (unsigned)(out - beg);     /* max distance in output */
-                if (dist > op) {                /* see if copy from window */
-                    op = dist - op;             /* distance back in window */
-                    if (op > whave) {
-                        if (state->sane) {
-                            strm->msg =
-                                (char *)"invalid distance too far back";
-                            state->mode = BAD;
-                            break;
-                        }
-#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
-                        if (len <= op - whave) {
-                            do {
-                                *out++ = 0;
-                            } while (--len);
-                            continue;
-                        }
-                        len -= op - whave;
-                        do {
-                            *out++ = 0;
-                        } while (--op > whave);
-                        if (op == 0) {
-                            from = out - dist;
-                            do {
-                                *out++ = *from++;
-                            } while (--len);
-                            continue;
-                        }
-#endif
-                    }
-                    from = window;
-                    if (wnext == 0) {           /* very common case */
-                        from += wsize - op;
-                        if (op < len) {         /* some from window */
-                            len -= op;
-                            do {
-                                *out++ = *from++;
-                            } while (--op);
-                            from = out - dist;  /* rest from output */
-                        }
-                    }
-                    else if (wnext < op) {      /* wrap around window */
-                        from += wsize + wnext - op;
-                        op -= wnext;
-                        if (op < len) {         /* some from end of window */
-                            len -= op;
-                            do {
-                                *out++ = *from++;
-                            } while (--op);
-                            from = window;
-                            if (wnext < len) {  /* some from start of window */
-                                op = wnext;
-                                len -= op;
-                                do {
-                                    *out++ = *from++;
-                                } while (--op);
-                                from = out - dist;      /* rest from output */
-                            }
-                        }
-                    }
-                    else {                      /* contiguous in window */
-                        from += wnext - op;
-                        if (op < len) {         /* some from window */
-                            len -= op;
-                            do {
-                                *out++ = *from++;
-                            } while (--op);
-                            from = out - dist;  /* rest from output */
-                        }
-                    }
-                    while (len > 2) {
-                        *out++ = *from++;
-                        *out++ = *from++;
-                        *out++ = *from++;
-                        len -= 3;
-                    }
-                    if (len) {
-                        *out++ = *from++;
-                        if (len > 1)
-                            *out++ = *from++;
-                    }
-                }
-                else {
-                    from = out - dist;          /* copy direct from output */
-                    do {                        /* minimum length is three */
-                        *out++ = *from++;
-                        *out++ = *from++;
-                        *out++ = *from++;
-                        len -= 3;
-                    } while (len > 2);
-                    if (len) {
-                        *out++ = *from++;
-                        if (len > 1)
-                            *out++ = *from++;
-                    }
-                }
-            }
-            else if ((op & 64) == 0) {          /* 2nd level distance code */
-                here = dcode[here.val + (hold & ((1U << op) - 1))];
-                goto dodist;
-            }
-            else {
-                strm->msg = (char *)"invalid distance code";
-                state->mode = BAD;
-                break;
-            }
-        }
-        else if ((op & 64) == 0) {              /* 2nd level length code */
-            here = lcode[here.val + (hold & ((1U << op) - 1))];
-            goto dolen;
-        }
-        else if (op & 32) {                     /* end-of-block */
-            Tracevv((stderr, "inflate:         end of block\n"));
-            state->mode = TYPE;
-            break;
-        }
-        else {
-            strm->msg = (char *)"invalid literal/length code";
-            state->mode = BAD;
-            break;
-        }
-    } while (in < last && out < end);
-
-    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
-    len = bits >> 3;
-    in -= len;
-    bits -= len << 3;
-    hold &= (1U << bits) - 1;
-
-    /* update state and return */
-    strm->next_in = in;
-    strm->next_out = out;
-    strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
-    strm->avail_out = (unsigned)(out < end ?
-                                 257 + (end - out) : 257 - (out - end));
-    state->hold = hold;
-    state->bits = bits;
-    return;
-}
-
-#define MAXBITS 15
-
-static int inflate_table( codetype type, unsigned short FAR *lens, unsigned codes, code FAR * FAR *table,
-                          unsigned FAR *bits, unsigned short FAR *work )
-{
-    unsigned len;               /* a code's length in bits */
-    unsigned sym;               /* index of code symbols */
-    unsigned min, max;          /* minimum and maximum code lengths */
-    unsigned root;              /* number of index bits for root table */
-    unsigned curr;              /* number of index bits for current table */
-    unsigned drop;              /* code bits to drop for sub-table */
-    int left;                   /* number of prefix codes available */
-    unsigned used;              /* code entries in table used */
-    unsigned huff;              /* Huffman code */
-    unsigned incr;              /* for incrementing code, index */
-    unsigned fill;              /* index for replicating entries */
-    unsigned low;               /* low bits for current root entry */
-    unsigned mask;              /* mask for low root bits */
-    code here;                  /* table entry for duplication */
-    code FAR *next;             /* next available space in table */
-    const unsigned short FAR *base;     /* base value table to use */
-    const unsigned short FAR *extra;    /* extra bits table to use */
-    unsigned match;             /* use base and extra for symbol >= match */
-    unsigned short count[MAXBITS+1];    /* number of codes of each length */
-    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
-    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
-        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
-        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
-    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
-        16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
-        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 77, 202};
-    static const unsigned short dbase[32] = { /* Distance codes 0..29 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, 4097, 6145,
-        8193, 12289, 16385, 24577, 0, 0};
-    static const unsigned short dext[32] = { /* Distance codes 0..29 extra */
-        16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
-        23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
-        28, 28, 29, 29, 64, 64};
-
-    /*
-       Process a set of code lengths to create a canonical Huffman code.  The
-       code lengths are lens[0..codes-1].  Each length corresponds to the
-       symbols 0..codes-1.  The Huffman code is generated by first sorting the
-       symbols by length from short to long, and retaining the symbol order
-       for codes with equal lengths.  Then the code starts with all zero bits
-       for the first code of the shortest length, and the codes are integer
-       increments for the same length, and zeros are appended as the length
-       increases.  For the deflate format, these bits are stored backwards
-       from their more natural integer increment ordering, and so when the
-       decoding tables are built in the large loop below, the integer codes
-       are incremented backwards.
-
-       This routine assumes, but does not check, that all of the entries in
-       lens[] are in the range 0..MAXBITS.  The caller must assure this.
-       1..MAXBITS is interpreted as that code length.  zero means that that
-       symbol does not occur in this code.
-
-       The codes are sorted by computing a count of codes for each length,
-       creating from that a table of starting indices for each length in the
-       sorted table, and then entering the symbols in order in the sorted
-       table.  The sorted table is work[], with that space being provided by
-       the caller.
-
-       The length counts are used for other purposes as well, i.e. finding
-       the minimum and maximum length codes, determining if there are any
-       codes at all, checking for a valid set of lengths, and looking ahead
-       at length counts to determine sub-table sizes when building the
-       decoding tables.
-     */
-
-    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
-    for (len = 0; len <= MAXBITS; len++)
-        count[len] = 0;
-    for (sym = 0; sym < codes; sym++)
-        count[lens[sym]]++;
-
-    /* bound code lengths, force root to be within code lengths */
-    root = *bits;
-    for (max = MAXBITS; max >= 1; max--)
-        if (count[max] != 0) break;
-    if (root > max) root = max;
-    if (max == 0) {                     /* no symbols to code at all */
-        here.op = (unsigned char)64;    /* invalid code marker */
-        here.bits = (unsigned char)1;
-        here.val = (unsigned short)0;
-        *(*table)++ = here;             /* make a table to force an error */
-        *(*table)++ = here;
-        *bits = 1;
-        return 0;     /* no symbols, but wait for decoding to report error */
-    }
-    for (min = 1; min < max; min++)
-        if (count[min] != 0) break;
-    if (root < min) root = min;
-
-    /* check for an over-subscribed or incomplete set of lengths */
-    left = 1;
-    for (len = 1; len <= MAXBITS; len++) {
-        left <<= 1;
-        left -= count[len];
-        if (left < 0) return -1;        /* over-subscribed */
-    }
-    if (left > 0 && (type == CODES || max != 1))
-        return -1;                      /* incomplete set */
-
-    /* generate offsets into symbol table for each length for sorting */
-    offs[1] = 0;
-    for (len = 1; len < MAXBITS; len++)
-        offs[len + 1] = offs[len] + count[len];
-
-    /* sort symbols by length, by symbol order within each length */
-    for (sym = 0; sym < codes; sym++)
-        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
-
-    /*
-       Create and fill in decoding tables.  In this loop, the table being
-       filled is at next and has curr index bits.  The code being used is huff
-       with length len.  That code is converted to an index by dropping drop
-       bits off of the bottom.  For codes where len is less than drop + curr,
-       those top drop + curr - len bits are incremented through all values to
-       fill the table with replicated entries.
-
-       root is the number of index bits for the root table.  When len exceeds
-       root, sub-tables are created pointed to by the root entry with an index
-       of the low root bits of huff.  This is saved in low to check for when a
-       new sub-table should be started.  drop is zero when the root table is
-       being filled, and drop is root when sub-tables are being filled.
-
-       When a new sub-table is needed, it is necessary to look ahead in the
-       code lengths to determine what size sub-table is needed.  The length
-       counts are used for this, and so count[] is decremented as codes are
-       entered in the tables.
-
-       used keeps track of how many table entries have been allocated from the
-       provided *table space.  It is checked for LENS and DIST tables against
-       the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
-       the initial root table size constants.  See the comments in inftrees.h
-       for more information.
-
-       sym increments through all symbols, and the loop terminates when
-       all codes of length max, i.e. all codes, have been processed.  This
-       routine permits incomplete codes, so another loop after this one fills
-       in the rest of the decoding tables with invalid code markers.
-     */
-
-    /* set up for code type */
-    switch (type) {
-    case CODES:
-        base = extra = work;    /* dummy value--not used */
-        match = 20;
-        break;
-    case LENS:
-        base = lbase;
-        extra = lext;
-        match = 257;
-        break;
-    default:    /* DISTS */
-        base = dbase;
-        extra = dext;
-        match = 0;
-    }
-
-    /* initialize state for loop */
-    huff = 0;                   /* starting code */
-    sym = 0;                    /* starting code symbol */
-    len = min;                  /* starting code length */
-    next = *table;              /* current table to fill in */
-    curr = root;                /* current table index bits */
-    drop = 0;                   /* current bits to drop from code for index */
-    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
-    used = 1U << root;          /* use root table entries */
-    mask = used - 1;            /* mask for comparing low */
-
-    /* check available table space */
-    if ((type == LENS && used > ENOUGH_LENS) ||
-        (type == DISTS && used > ENOUGH_DISTS))
-        return 1;
-
-    /* process all codes and make table entries */
-    for (;;) {
-        /* create table entry */
-        here.bits = (unsigned char)(len - drop);
-        if (work[sym] + 1U < match) {
-            here.op = (unsigned char)0;
-            here.val = work[sym];
-        }
-        else if (work[sym] >= match) {
-            here.op = (unsigned char)(extra[work[sym] - match]);
-            here.val = base[work[sym] - match];
-        }
-        else {
-            here.op = (unsigned char)(32 + 64);         /* end of block */
-            here.val = 0;
-        }
-
-        /* replicate for those indices with low len bits equal to huff */
-        incr = 1U << (len - drop);
-        fill = 1U << curr;
-        min = fill;                 /* save offset to next table */
-        do {
-            fill -= incr;
-            next[(huff >> drop) + fill] = here;
-        } while (fill != 0);
-
-        /* backwards increment the len-bit code huff */
-        incr = 1U << (len - 1);
-        while (huff & incr)
-            incr >>= 1;
-        if (incr != 0) {
-            huff &= incr - 1;
-            huff += incr;
-        }
-        else
-            huff = 0;
-
-        /* go to next symbol, update count, len */
-        sym++;
-        if (--(count[len]) == 0) {
-            if (len == max) break;
-            len = lens[work[sym]];
-        }
-
-        /* create new sub-table if needed */
-        if (len > root && (huff & mask) != low) {
-            /* if first time, transition to sub-tables */
-            if (drop == 0)
-                drop = root;
-
-            /* increment past last table */
-            next += min;            /* here min is 1 << curr */
-
-            /* determine length of next table */
-            curr = len - drop;
-            left = (int)(1 << curr);
-            while (curr + drop < max) {
-                left -= count[curr + drop];
-                if (left <= 0) break;
-                curr++;
-                left <<= 1;
-            }
-
-            /* check for enough space */
-            used += 1U << curr;
-            if ((type == LENS && used > ENOUGH_LENS) ||
-                (type == DISTS && used > ENOUGH_DISTS))
-                return 1;
-
-            /* point entry in root table to sub-table */
-            low = huff & mask;
-            (*table)[low].op = (unsigned char)curr;
-            (*table)[low].bits = (unsigned char)root;
-            (*table)[low].val = (unsigned short)(next - *table);
-        }
-    }
-
-    /* fill in remaining table entry if code is incomplete (guaranteed to have
-       at most one remaining entry, since if the code is incomplete, the
-       maximum code length that was allowed to get this far is one bit) */
-    if (huff != 0) {
-        here.op = (unsigned char)64;            /* invalid code marker */
-        here.bits = (unsigned char)(len - drop);
-        here.val = (unsigned short)0;
-        next[huff] = here;
-    }
-
-    /* set return parameters */
-    *table += used;
-    *bits = root;
-    return 0;
-}
-
-static int inflateStateCheck( z_streamp strm )
-{
-    struct inflate_state FAR *state;
-    if (strm == Z_NULL ||
-        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
-        return 1;
-    state = (struct inflate_state FAR *)strm->state;
-    if (state == Z_NULL || state->strm != strm ||
-        state->mode < HEAD || state->mode > SYNC)
-        return 1;
-    return 0;
-}
-
-static int inflateResetKeep( z_streamp strm )
-{
-    struct inflate_state FAR *state;
-
-    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    strm->total_in = strm->total_out = state->total = 0;
-    strm->msg = Z_NULL;
-    if (state->wrap)        /* to support ill-conceived Java test suite */
-        strm->adler = state->wrap & 1;
-    state->mode = HEAD;
-    state->last = 0;
-    state->havedict = 0;
-    state->dmax = 32768U;
-    state->head = Z_NULL;
-    state->hold = 0;
-    state->bits = 0;
-    state->lencode = state->distcode = state->next = state->codes;
-    state->sane = 1;
-    state->back = -1;
-    Tracev((stderr, "inflate: reset\n"));
-    return Z_OK;
-}
-
-static int inflateReset( z_streamp strm )
-{
-    struct inflate_state FAR *state;
-
-    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    state->wsize = 0;
-    state->whave = 0;
-    state->wnext = 0;
-    return inflateResetKeep(strm);
-}
-
-static int inflateReset2( z_streamp strm, int windowBits )
-{
-    int wrap;
-    struct inflate_state FAR *state;
-
-    /* get the state */
-    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-
-    /* extract wrap request from windowBits parameter */
-    if (windowBits < 0) {
-        wrap = 0;
-        windowBits = -windowBits;
-    }
-    else {
-        wrap = (windowBits >> 4) + 5;
-#ifdef GUNZIP
-        if (windowBits < 48)
-            windowBits &= 15;
-#endif
-    }
-
-    /* set number of window bits, free window if different */
-    if (windowBits && (windowBits < 8 || windowBits > 15))
-        return Z_STREAM_ERROR;
-    if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) {
-        ZFREE(strm, state->window);
-        state->window = Z_NULL;
-    }
-
-    /* update state and reset the rest of it */
-    state->wrap = wrap;
-    state->wbits = (unsigned)windowBits;
-    return inflateReset(strm);
-}
-
-int inflateInit2( z_streamp strm, int windowBits )
-{
-    int ret;
-    struct inflate_state FAR *state;
-
-    strm->msg = Z_NULL;                 /* in case we return an error */
-    state = (struct inflate_state FAR *)
-            ZALLOC(strm, 1, sizeof(struct inflate_state));
-    if (state == Z_NULL) return Z_MEM_ERROR;
-    Tracev((stderr, "inflate: allocated\n"));
-    strm->state = (struct internal_state FAR *)state;
-    state->strm = strm;
-    state->window = Z_NULL;
-    state->mode = HEAD;     /* to pass state test in inflateReset2() */
-    ret = inflateReset2(strm, windowBits);
-    if (ret != Z_OK) {
-        ZFREE(strm, state);
-        strm->state = Z_NULL;
-    }
-    return ret;
-}
-
-int inflateInit( z_streamp strm )
-{
-    return inflateInit2(strm, DEF_WBITS);
-}
-
-/*
-   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.
- */
-static void fixedtables( struct inflate_state FAR *state )
-{
-    static const code lenfix[512] = {
-        {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48},
-        {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128},
-        {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59},
-        {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176},
-        {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20},
-        {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100},
-        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8},
-        {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216},
-        {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76},
-        {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114},
-        {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},
-        {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148},
-        {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42},
-        {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86},
-        {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15},
-        {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236},
-        {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62},
-        {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
-        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31},
-        {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162},
-        {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25},
-        {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105},
-        {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4},
-        {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202},
-        {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69},
-        {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125},
-        {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13},
-        {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195},
-        {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35},
-        {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91},
-        {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19},
-        {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246},
-        {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55},
-        {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135},
-        {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99},
-        {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190},
-        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16},
-        {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96},
-        {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6},
-        {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209},
-        {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},
-        {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116},
-        {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4},
-        {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153},
-        {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44},
-        {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82},
-        {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11},
-        {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
-        {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58},
-        {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138},
-        {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51},
-        {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173},
-        {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30},
-        {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110},
-        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0},
-        {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195},
-        {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65},
-        {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121},
-        {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},
-        {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258},
-        {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37},
-        {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93},
-        {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23},
-        {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251},
-        {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51},
-        {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
-        {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67},
-        {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183},
-        {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23},
-        {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103},
-        {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9},
-        {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223},
-        {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79},
-        {0,9,255}
-    };
-
-    static const code distfix[32] = {
-        {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025},
-        {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193},
-        {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385},
-        {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577},
-        {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073},
-        {22,5,193},{64,5,0}
-    };
-
-    state->lencode = lenfix;
-    state->lenbits = 9;
-    state->distcode = distfix;
-    state->distbits = 5;
-}
-
-/*
-   Update the window with the last wsize (normally 32K) bytes written before
-   returning.  If window does not exist yet, create it.  This is only called
-   when a window is already in use, or when output has been written during this
-   inflate call, but the end of the deflate stream has not been reached yet.
-   It is also called to create a window for dictionary data when a dictionary
-   is loaded.
-
-   Providing output buffers larger than 32K to inflate() should provide a speed
-   advantage, since only the last 32K of output is copied to the sliding window
-   upon return from inflate(), and since all distances after the first 32K of
-   output will fall in the output data, making match copies simpler and faster.
-   The advantage may be dependent on the size of the processor's data caches.
- */
-static int updatewindow( z_streamp strm, const Bytef *end, unsigned copy )
-{
-    struct inflate_state FAR *state;
-    unsigned dist;
-
-    state = (struct inflate_state FAR *)strm->state;
-
-    /* if it hasn't been done already, allocate space for the window */
-    if (state->window == Z_NULL) {
-        state->window = (unsigned char FAR *)
-                        ZALLOC(strm, 1U << state->wbits,
-                               sizeof(unsigned char));
-        if (state->window == Z_NULL) return 1;
-    }
-
-    /* if window not in use yet, initialize */
-    if (state->wsize == 0) {
-        state->wsize = 1U << state->wbits;
-        state->wnext = 0;
-        state->whave = 0;
-    }
-
-    /* copy state->wsize or less output bytes into the circular window */
-    if (copy >= state->wsize) {
-        zmemcpy(state->window, end - state->wsize, state->wsize);
-        state->wnext = 0;
-        state->whave = state->wsize;
-    }
-    else {
-        dist = state->wsize - state->wnext;
-        if (dist > copy) dist = copy;
-        zmemcpy(state->window + state->wnext, end - copy, dist);
-        copy -= dist;
-        if (copy) {
-            zmemcpy(state->window, end - copy, copy);
-            state->wnext = copy;
-            state->whave = state->wsize;
-        }
-        else {
-            state->wnext += dist;
-            if (state->wnext == state->wsize) state->wnext = 0;
-            if (state->whave < state->wsize) state->whave += dist;
-        }
-    }
-    return 0;
-}
-
-/* Macros for inflate(): */
-
-#define crc32(crc,buf,len) RtlComputeCrc32(crc,buf,len)
-
-/* check function to use adler32() for zlib or crc32() for gzip */
-#ifdef GUNZIP
-#  define UPDATE(check, buf, len) \
-    (state->flags ? crc32(check, buf, len) : adler32(check, buf, len))
-#else
-#  define UPDATE(check, buf, len) adler32(check, buf, len)
-#endif
-
-/* check macros for header crc */
-#ifdef GUNZIP
-#  define CRC2(check, word) \
-    do { \
-        hbuf[0] = (unsigned char)(word); \
-        hbuf[1] = (unsigned char)((word) >> 8); \
-        check = crc32(check, hbuf, 2); \
-    } while (0)
-
-#  define CRC4(check, word) \
-    do { \
-        hbuf[0] = (unsigned char)(word); \
-        hbuf[1] = (unsigned char)((word) >> 8); \
-        hbuf[2] = (unsigned char)((word) >> 16); \
-        hbuf[3] = (unsigned char)((word) >> 24); \
-        check = crc32(check, hbuf, 4); \
-    } while (0)
-#endif
-
-/* Load registers with state in inflate() for speed */
-#define LOAD() \
-    do { \
-        put = strm->next_out; \
-        left = strm->avail_out; \
-        next = strm->next_in; \
-        have = strm->avail_in; \
-        hold = state->hold; \
-        bits = state->bits; \
-    } while (0)
-
-/* Restore state from registers in inflate() */
-#define RESTORE() \
-    do { \
-        strm->next_out = put; \
-        strm->avail_out = left; \
-        strm->next_in = next; \
-        strm->avail_in = have; \
-        state->hold = hold; \
-        state->bits = bits; \
-    } while (0)
-
-/* Clear the input bit accumulator */
-#define INITBITS() \
-    do { \
-        hold = 0; \
-        bits = 0; \
-    } while (0)
-
-/* Get a byte of input into the bit accumulator, or return from inflate()
-   if there is no input available. */
-#define PULLBYTE() \
-    do { \
-        if (have == 0) goto inf_leave; \
-        have--; \
-        hold += (unsigned long)(*next++) << bits; \
-        bits += 8; \
-    } while (0)
-
-/* 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 inflate(). */
-#define NEEDBITS(n) \
-    do { \
-        while (bits < (unsigned)(n)) \
-            PULLBYTE(); \
-    } while (0)
-
-/* Return the low n bits of the bit accumulator (n < 16) */
-#define BITS(n) \
-    ((unsigned)hold & ((1U << (n)) - 1))
-
-/* Remove n bits from the bit accumulator */
-#define DROPBITS(n) \
-    do { \
-        hold >>= (n); \
-        bits -= (unsigned)(n); \
-    } while (0)
-
-/* Remove zero to seven bits as needed to go to a byte boundary */
-#define BYTEBITS() \
-    do { \
-        hold >>= bits & 7; \
-        bits -= bits & 7; \
-    } while (0)
-
-/*
-   inflate() uses a state machine to process as much input data and generate as
-   much output data as possible before returning.  The state machine is
-   structured roughly as follows:
-
-    for (;;) switch (state) {
-    ...
-    case STATEn:
-        if (not enough input data or output space to make progress)
-            return;
-        ... make progress ...
-        state = STATEm;
-        break;
-    ...
-    }
-
-   so when inflate() is called again, the same case is attempted again, and
-   if the appropriate resources are provided, the machine proceeds to the
-   next state.  The NEEDBITS() macro is usually the way the state evaluates
-   whether it can proceed or should return.  NEEDBITS() does the return if
-   the requested bits are not available.  The typical use of the BITS macros
-   is:
-
-        NEEDBITS(n);
-        ... do something with BITS(n) ...
-        DROPBITS(n);
-
-   where NEEDBITS(n) either returns from inflate() if there isn't enough
-   input left to load n bits into the accumulator, or it continues.  BITS(n)
-   gives the low n bits in the accumulator.  When done, DROPBITS(n) drops
-   the low n bits off the accumulator.  INITBITS() clears the accumulator
-   and sets the number of available bits to zero.  BYTEBITS() discards just
-   enough bits to put the accumulator on a byte boundary.  After BYTEBITS()
-   and a NEEDBITS(8), then BITS(8) would return the next byte in the stream.
-
-   NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return
-   if there is no input available.  The decoding of variable length codes uses
-   PULLBYTE() directly in order to pull just enough bytes to decode the next
-   code, and no more.
-
-   Some states loop until they get enough input, making sure that enough
-   state information is maintained to continue the loop where it left off
-   if NEEDBITS() returns in the loop.  For example, want, need, and keep
-   would all have to actually be part of the saved state in case NEEDBITS()
-   returns:
-
-    case STATEw:
-        while (want < need) {
-            NEEDBITS(n);
-            keep[want++] = BITS(n);
-            DROPBITS(n);
-        }
-        state = STATEx;
-    case STATEx:
-
-   As shown above, if the next state is also the next case, then the break
-   is omitted.
-
-   A state may also return if there is not enough output space available to
-   complete that state.  Those states are copying stored data, writing a
-   literal byte, and copying a matching string.
-
-   When returning, a "goto inf_leave" is used to update the total counters,
-   update the check value, and determine whether any progress has been made
-   during that inflate() call in order to return the proper return code.
-   Progress is defined as a change in either strm->avail_in or strm->avail_out.
-   When there is a window, goto inf_leave will update the window with the last
-   output written.  If a goto inf_leave occurs in the middle of decompression
-   and there is no window currently, goto inf_leave will create one and copy
-   output to the window for the next call of inflate().
-
-   In this implementation, the flush parameter of inflate() only affects the
-   return code (per zlib.h).  inflate() always writes as much as possible to
-   strm->next_out, given the space available and the provided input--the effect
-   documented in zlib.h of Z_SYNC_FLUSH.  Furthermore, inflate() always defers
-   the allocation of and copying into a sliding window until necessary, which
-   provides the effect documented in zlib.h for Z_FINISH when the entire input
-   stream available.  So the only thing the flush parameter actually does is:
-   when flush is set to Z_FINISH, inflate() cannot return Z_OK.  Instead it
-   will return Z_BUF_ERROR if it has not reached the end of the stream.
- */
-
-int inflate( z_streamp strm, int flush )
-{
-    struct inflate_state FAR *state;
-    z_const unsigned char FAR *next;    /* next input */
-    unsigned char FAR *put;     /* next output */
-    unsigned have, left;        /* available input and output */
-    unsigned long hold;         /* bit buffer */
-    unsigned bits;              /* bits in bit buffer */
-    unsigned in, out;           /* save starting available input and output */
-    unsigned copy;              /* number of stored or match bytes to copy */
-    unsigned char FAR *from;    /* where to copy match bytes from */
-    code here;                  /* current decoding table entry */
-    code last;                  /* parent table entry */
-    unsigned len;               /* length to copy for repeats, bits to drop */
-    int ret;                    /* return code */
-#ifdef GUNZIP
-    unsigned char hbuf[4];      /* buffer for gzip header crc calculation */
-#endif
-    static const unsigned short order[19] = /* permutation of code lengths */
-        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-    if (inflateStateCheck(strm) || strm->next_out == Z_NULL ||
-        (strm->next_in == Z_NULL && strm->avail_in != 0))
-        return Z_STREAM_ERROR;
-
-    state = (struct inflate_state FAR *)strm->state;
-    if (state->mode == TYPE) state->mode = TYPEDO;      /* skip check */
-    LOAD();
-    in = have;
-    out = left;
-    ret = Z_OK;
-    for (;;)
-        switch (state->mode) {
-        case HEAD:
-            if (state->wrap == 0) {
-                state->mode = TYPEDO;
-                break;
-            }
-            NEEDBITS(16);
-#ifdef GUNZIP
-            if ((state->wrap & 2) && hold == 0x8b1f) {  /* gzip header */
-                if (state->wbits == 0)
-                    state->wbits = 15;
-                state->check = crc32(0L, Z_NULL, 0);
-                CRC2(state->check, hold);
-                INITBITS();
-                state->mode = FLAGS;
-                break;
-            }
-            state->flags = 0;           /* expect zlib header */
-            if (state->head != Z_NULL)
-                state->head->done = -1;
-            if (!(state->wrap & 1) ||   /* check if zlib header allowed */
-#else
-            if (
-#endif
-                ((BITS(8) << 8) + (hold >> 8)) % 31) {
-                strm->msg = (char *)"incorrect header check";
-                state->mode = BAD;
-                break;
-            }
-            if (BITS(4) != Z_DEFLATED) {
-                strm->msg = (char *)"unknown compression method";
-                state->mode = BAD;
-                break;
-            }
-            DROPBITS(4);
-            len = BITS(4) + 8;
-            if (state->wbits == 0)
-                state->wbits = len;
-            if (len > 15 || len > state->wbits) {
-                strm->msg = (char *)"invalid window size";
-                state->mode = BAD;
-                break;
-            }
-            state->dmax = 1U << len;
-            Tracev((stderr, "inflate:   zlib header ok\n"));
-            strm->adler = state->check = adler32(0L, Z_NULL, 0);
-            state->mode = hold & 0x200 ? DICTID : TYPE;
-            INITBITS();
-            break;
-#ifdef GUNZIP
-        case FLAGS:
-            NEEDBITS(16);
-            state->flags = (int)(hold);
-            if ((state->flags & 0xff) != Z_DEFLATED) {
-                strm->msg = (char *)"unknown compression method";
-                state->mode = BAD;
-                break;
-            }
-            if (state->flags & 0xe000) {
-                strm->msg = (char *)"unknown header flags set";
-                state->mode = BAD;
-                break;
-            }
-            if (state->head != Z_NULL)
-                state->head->text = (int)((hold >> 8) & 1);
-            if ((state->flags & 0x0200) && (state->wrap & 4))
-                CRC2(state->check, hold);
-            INITBITS();
-            state->mode = TIME;
-        case TIME:
-            NEEDBITS(32);
-            if (state->head != Z_NULL)
-                state->head->time = hold;
-            if ((state->flags & 0x0200) && (state->wrap & 4))
-                CRC4(state->check, hold);
-            INITBITS();
-            state->mode = OS;
-        case OS:
-            NEEDBITS(16);
-            if (state->head != Z_NULL) {
-                state->head->xflags = (int)(hold & 0xff);
-                state->head->os = (int)(hold >> 8);
-            }
-            if ((state->flags & 0x0200) && (state->wrap & 4))
-                CRC2(state->check, hold);
-            INITBITS();
-            state->mode = EXLEN;
-        case EXLEN:
-            if (state->flags & 0x0400) {
-                NEEDBITS(16);
-                state->length = (unsigned)(hold);
-                if (state->head != Z_NULL)
-                    state->head->extra_len = (unsigned)hold;
-                if ((state->flags & 0x0200) && (state->wrap & 4))
-                    CRC2(state->check, hold);
-                INITBITS();
-            }
-            else if (state->head != Z_NULL)
-                state->head->extra = Z_NULL;
-            state->mode = EXTRA;
-        case EXTRA:
-            if (state->flags & 0x0400) {
-                copy = state->length;
-                if (copy > have) copy = have;
-                if (copy) {
-                    if (state->head != Z_NULL &&
-                        state->head->extra != Z_NULL) {
-                        len = state->head->extra_len - state->length;
-                        zmemcpy(state->head->extra + len, next,
-                                len + copy > state->head->extra_max ?
-                                state->head->extra_max - len : copy);
-                    }
-                    if ((state->flags & 0x0200) && (state->wrap & 4))
-                        state->check = crc32(state->check, next, copy);
-                    have -= copy;
-                    next += copy;
-                    state->length -= copy;
-                }
-                if (state->length) goto inf_leave;
-            }
-            state->length = 0;
-            state->mode = NAME;
-        case NAME:
-            if (state->flags & 0x0800) {
-                if (have == 0) goto inf_leave;
-                copy = 0;
-                do {
-                    len = (unsigned)(next[copy++]);
-                    if (state->head != Z_NULL &&
-                            state->head->name != Z_NULL &&
-                            state->length < state->head->name_max)
-                        state->head->name[state->length++] = (Bytef)len;
-                } while (len && copy < have);
-                if ((state->flags & 0x0200) && (state->wrap & 4))
-                    state->check = crc32(state->check, next, copy);
-                have -= copy;
-                next += copy;
-                if (len) goto inf_leave;
-            }
-            else if (state->head != Z_NULL)
-                state->head->name = Z_NULL;
-            state->length = 0;
-            state->mode = COMMENT;
-        case COMMENT:
-            if (state->flags & 0x1000) {
-                if (have == 0) goto inf_leave;
-                copy = 0;
-                do {
-                    len = (unsigned)(next[copy++]);
-                    if (state->head != Z_NULL &&
-                            state->head->comment != Z_NULL &&
-                            state->length < state->head->comm_max)
-                        state->head->comment[state->length++] = (Bytef)len;
-                } while (len && copy < have);
-                if ((state->flags & 0x0200) && (state->wrap & 4))
-                    state->check = crc32(state->check, next, copy);
-                have -= copy;
-                next += copy;
-                if (len) goto inf_leave;
-            }
-            else if (state->head != Z_NULL)
-                state->head->comment = Z_NULL;
-            state->mode = HCRC;
-        case HCRC:
-            if (state->flags & 0x0200) {
-                NEEDBITS(16);
-                if ((state->wrap & 4) && hold != (state->check & 0xffff)) {
-                    strm->msg = (char *)"header crc mismatch";
-                    state->mode = BAD;
-                    break;
-                }
-                INITBITS();
-            }
-            if (state->head != Z_NULL) {
-                state->head->hcrc = (int)((state->flags >> 9) & 1);
-                state->head->done = 1;
-            }
-            strm->adler = state->check = crc32(0L, Z_NULL, 0);
-            state->mode = TYPE;
-            break;
-#endif
-        case DICTID:
-            NEEDBITS(32);
-            strm->adler = state->check = ZSWAP32(hold);
-            INITBITS();
-            state->mode = DICT;
-        case DICT:
-            if (state->havedict == 0) {
-                RESTORE();
-                return Z_NEED_DICT;
-            }
-            strm->adler = state->check = adler32(0L, Z_NULL, 0);
-            state->mode = TYPE;
-        case TYPE:
-            if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave;
-        case TYPEDO:
-            if (state->last) {
-                BYTEBITS();
-                state->mode = CHECK;
-                break;
-            }
-            NEEDBITS(3);
-            state->last = BITS(1);
-            DROPBITS(1);
-            switch (BITS(2)) {
-            case 0:                             /* stored block */
-                Tracev((stderr, "inflate:     stored block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = STORED;
-                break;
-            case 1:                             /* fixed block */
-                fixedtables(state);
-                Tracev((stderr, "inflate:     fixed codes block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = LEN_;             /* decode codes */
-                if (flush == Z_TREES) {
-                    DROPBITS(2);
-                    goto inf_leave;
-                }
-                break;
-            case 2:                             /* dynamic block */
-                Tracev((stderr, "inflate:     dynamic codes block%s\n",
-                        state->last ? " (last)" : ""));
-                state->mode = TABLE;
-                break;
-            case 3:
-                strm->msg = (char *)"invalid block type";
-                state->mode = BAD;
-            }
-            DROPBITS(2);
-            break;
-        case STORED:
-            BYTEBITS();                         /* go to byte boundary */
-            NEEDBITS(32);
-            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
-                strm->msg = (char *)"invalid stored block lengths";
-                state->mode = BAD;
-                break;
-            }
-            state->length = (unsigned)hold & 0xffff;
-            Tracev((stderr, "inflate:       stored length %u\n",
-                    state->length));
-            INITBITS();
-            state->mode = COPY_;
-            if (flush == Z_TREES) goto inf_leave;
-        case COPY_:
-            state->mode = COPY;
-        case COPY:
-            copy = state->length;
-            if (copy) {
-                if (copy > have) copy = have;
-                if (copy > left) copy = left;
-                if (copy == 0) goto inf_leave;
-                zmemcpy(put, next, copy);
-                have -= copy;
-                next += copy;
-                left -= copy;
-                put += copy;
-                state->length -= copy;
-                break;
-            }
-            Tracev((stderr, "inflate:       stored end\n"));
-            state->mode = TYPE;
-            break;
-        case TABLE:
-            NEEDBITS(14);
-            state->nlen = BITS(5) + 257;
-            DROPBITS(5);
-            state->ndist = BITS(5) + 1;
-            DROPBITS(5);
-            state->ncode = BITS(4) + 4;
-            DROPBITS(4);
-#ifndef PKZIP_BUG_WORKAROUND
-            if (state->nlen > 286 || state->ndist > 30) {
-                strm->msg = (char *)"too many length or distance symbols";
-                state->mode = BAD;
-                break;
-            }
-#endif
-            Tracev((stderr, "inflate:       table sizes ok\n"));
-            state->have = 0;
-            state->mode = LENLENS;
-        case LENLENS:
-            while (state->have < state->ncode) {
-                NEEDBITS(3);
-                state->lens[order[state->have++]] = (unsigned short)BITS(3);
-                DROPBITS(3);
-            }
-            while (state->have < 19)
-                state->lens[order[state->have++]] = 0;
-            state->next = state->codes;
-            state->lencode = (const code FAR *)(state->next);
-            state->lenbits = 7;
-            ret = inflate_table(CODES, state->lens, 19, &(state->next),
-                                &(state->lenbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid code lengths set";
-                state->mode = BAD;
-                break;
-            }
-            Tracev((stderr, "inflate:       code lengths ok\n"));
-            state->have = 0;
-            state->mode = CODELENS;
-        case CODELENS:
-            while (state->have < state->nlen + state->ndist) {
-                for (;;) {
-                    here = state->lencode[BITS(state->lenbits)];
-                    if ((unsigned)(here.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                if (here.val < 16) {
-                    DROPBITS(here.bits);
-                    state->lens[state->have++] = here.val;
-                }
-                else {
-                    if (here.val == 16) {
-                        NEEDBITS(here.bits + 2);
-                        DROPBITS(here.bits);
-                        if (state->have == 0) {
-                            strm->msg = (char *)"invalid bit length repeat";
-                            state->mode = BAD;
-                            break;
-                        }
-                        len = state->lens[state->have - 1];
-                        copy = 3 + BITS(2);
-                        DROPBITS(2);
-                    }
-                    else if (here.val == 17) {
-                        NEEDBITS(here.bits + 3);
-                        DROPBITS(here.bits);
-                        len = 0;
-                        copy = 3 + BITS(3);
-                        DROPBITS(3);
-                    }
-                    else {
-                        NEEDBITS(here.bits + 7);
-                        DROPBITS(here.bits);
-                        len = 0;
-                        copy = 11 + BITS(7);
-                        DROPBITS(7);
-                    }
-                    if (state->have + copy > state->nlen + state->ndist) {
-                        strm->msg = (char *)"invalid bit length repeat";
-                        state->mode = BAD;
-                        break;
-                    }
-                    while (copy--)
-                        state->lens[state->have++] = (unsigned short)len;
-                }
-            }
-
-            /* handle error breaks in while */
-            if (state->mode == BAD) break;
-
-            /* check for end-of-block code (better have one) */
-            if (state->lens[256] == 0) {
-                strm->msg = (char *)"invalid code -- missing end-of-block";
-                state->mode = BAD;
-                break;
-            }
-
-            /* 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 */
-            state->next = state->codes;
-            state->lencode = (const code FAR *)(state->next);
-            state->lenbits = 9;
-            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
-                                &(state->lenbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid literal/lengths set";
-                state->mode = BAD;
-                break;
-            }
-            state->distcode = (const code FAR *)(state->next);
-            state->distbits = 6;
-            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
-                            &(state->next), &(state->distbits), state->work);
-            if (ret) {
-                strm->msg = (char *)"invalid distances set";
-                state->mode = BAD;
-                break;
-            }
-            Tracev((stderr, "inflate:       codes ok\n"));
-            state->mode = LEN_;
-            if (flush == Z_TREES) goto inf_leave;
-        case LEN_:
-            state->mode = LEN;
-        case LEN:
-            if (have >= 6 && left >= 258) {
-                RESTORE();
-                inflate_fast(strm, out);
-                LOAD();
-                if (state->mode == TYPE)
-                    state->back = -1;
-                break;
-            }
-            state->back = 0;
-            for (;;) {
-                here = state->lencode[BITS(state->lenbits)];
-                if ((unsigned)(here.bits) <= bits) break;
-                PULLBYTE();
-            }
-            if (here.op && (here.op & 0xf0) == 0) {
-                last = here;
-                for (;;) {
-                    here = state->lencode[last.val +
-                            (BITS(last.bits + last.op) >> last.bits)];
-                    if ((unsigned)(last.bits + here.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                DROPBITS(last.bits);
-                state->back += last.bits;
-            }
-            DROPBITS(here.bits);
-            state->back += here.bits;
-            state->length = (unsigned)here.val;
-            if ((int)(here.op) == 0) {
-                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
-                        "inflate:         literal '%c'\n" :
-                        "inflate:         literal 0x%02x\n", here.val));
-                state->mode = LIT;
-                break;
-            }
-            if (here.op & 32) {
-                Tracevv((stderr, "inflate:         end of block\n"));
-                state->back = -1;
-                state->mode = TYPE;
-                break;
-            }
-            if (here.op & 64) {
-                strm->msg = (char *)"invalid literal/length code";
-                state->mode = BAD;
-                break;
-            }
-            state->extra = (unsigned)(here.op) & 15;
-            state->mode = LENEXT;
-        case LENEXT:
-            if (state->extra) {
-                NEEDBITS(state->extra);
-                state->length += BITS(state->extra);
-                DROPBITS(state->extra);
-                state->back += state->extra;
-            }
-            Tracevv((stderr, "inflate:         length %u\n", state->length));
-            state->was = state->length;
-            state->mode = DIST;
-        case DIST:
-            for (;;) {
-                here = state->distcode[BITS(state->distbits)];
-                if ((unsigned)(here.bits) <= bits) break;
-                PULLBYTE();
-            }
-            if ((here.op & 0xf0) == 0) {
-                last = here;
-                for (;;) {
-                    here = state->distcode[last.val +
-                            (BITS(last.bits + last.op) >> last.bits)];
-                    if ((unsigned)(last.bits + here.bits) <= bits) break;
-                    PULLBYTE();
-                }
-                DROPBITS(last.bits);
-                state->back += last.bits;
-            }
-            DROPBITS(here.bits);
-            state->back += here.bits;
-            if (here.op & 64) {
-                strm->msg = (char *)"invalid distance code";
-                state->mode = BAD;
-                break;
-            }
-            state->offset = (unsigned)here.val;
-            state->extra = (unsigned)(here.op) & 15;
-            state->mode = DISTEXT;
-        case DISTEXT:
-            if (state->extra) {
-                NEEDBITS(state->extra);
-                state->offset += BITS(state->extra);
-                DROPBITS(state->extra);
-                state->back += state->extra;
-            }
-#ifdef INFLATE_STRICT
-            if (state->offset > state->dmax) {
-                strm->msg = (char *)"invalid distance too far back";
-                state->mode = BAD;
-                break;
-            }
-#endif
-            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
-            state->mode = MATCH;
-        case MATCH:
-            if (left == 0) goto inf_leave;
-            copy = out - left;
-            if (state->offset > copy) {         /* copy from window */
-                copy = state->offset - copy;
-                if (copy > state->whave) {
-                    if (state->sane) {
-                        strm->msg = (char *)"invalid distance too far back";
-                        state->mode = BAD;
-                        break;
-                    }
-#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
-                    Trace((stderr, "inflate.c too far\n"));
-                    copy -= state->whave;
-                    if (copy > state->length) copy = state->length;
-                    if (copy > left) copy = left;
-                    left -= copy;
-                    state->length -= copy;
-                    do {
-                        *put++ = 0;
-                    } while (--copy);
-                    if (state->length == 0) state->mode = LEN;
-                    break;
-#endif
-                }
-                if (copy > state->wnext) {
-                    copy -= state->wnext;
-                    from = state->window + (state->wsize - copy);
-                }
-                else
-                    from = state->window + (state->wnext - copy);
-                if (copy > state->length) copy = state->length;
-            }
-            else {                              /* copy from output */
-                from = put - state->offset;
-                copy = state->length;
-            }
-            if (copy > left) copy = left;
-            left -= copy;
-            state->length -= copy;
-            do {
-                *put++ = *from++;
-            } while (--copy);
-            if (state->length == 0) state->mode = LEN;
-            break;
-        case LIT:
-            if (left == 0) goto inf_leave;
-            *put++ = (unsigned char)(state->length);
-            left--;
-            state->mode = LEN;
-            break;
-        case CHECK:
-            if (state->wrap) {
-                NEEDBITS(32);
-                out -= left;
-                strm->total_out += out;
-                state->total += out;
-                if ((state->wrap & 4) && out)
-                    strm->adler = state->check =
-                        UPDATE(state->check, put - out, out);
-                out = left;
-                if ((state->wrap & 4) && (
-#ifdef GUNZIP
-                     state->flags ? hold :
-#endif
-                     ZSWAP32(hold)) != state->check) {
-                    strm->msg = (char *)"incorrect data check";
-                    state->mode = BAD;
-                    break;
-                }
-                INITBITS();
-                Tracev((stderr, "inflate:   check matches trailer\n"));
-            }
-#ifdef GUNZIP
-            state->mode = LENGTH;
-        case LENGTH:
-            if (state->wrap && state->flags) {
-                NEEDBITS(32);
-                if (hold != (state->total & 0xffffffffUL)) {
-                    strm->msg = (char *)"incorrect length check";
-                    state->mode = BAD;
-                    break;
-                }
-                INITBITS();
-                Tracev((stderr, "inflate:   length matches trailer\n"));
-            }
-#endif
-            state->mode = DONE;
-        case DONE:
-            ret = Z_STREAM_END;
-            goto inf_leave;
-        case BAD:
-            ret = Z_DATA_ERROR;
-            goto inf_leave;
-        case MEM:
-            return Z_MEM_ERROR;
-        case SYNC:
-        default:
-            return Z_STREAM_ERROR;
-        }
-
-    /*
-       Return from inflate(), updating the total counts and the check value.
-       If there was no progress during the inflate() call, return a buffer
-       error.  Call updatewindow() to create and/or update the window state.
-       Note: a memory error from inflate() is non-recoverable.
-     */
-  inf_leave:
-    RESTORE();
-    if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
-            (state->mode < CHECK || flush != Z_FINISH)))
-        if (updatewindow(strm, strm->next_out, out - strm->avail_out)) {
-            state->mode = MEM;
-            return Z_MEM_ERROR;
-        }
-    in -= strm->avail_in;
-    out -= strm->avail_out;
-    strm->total_in += in;
-    strm->total_out += out;
-    state->total += out;
-    if ((state->wrap & 4) && out)
-        strm->adler = state->check =
-            UPDATE(state->check, strm->next_out - out, out);
-    strm->data_type = (int)state->bits + (state->last ? 64 : 0) +
-                      (state->mode == TYPE ? 128 : 0) +
-                      (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0);
-    if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
-        ret = Z_BUF_ERROR;
-    return ret;
-}
-
-int inflateEnd(z_streamp strm)
-{
-    struct inflate_state FAR *state;
-    if (inflateStateCheck(strm))
-        return Z_STREAM_ERROR;
-    state = (struct inflate_state FAR *)strm->state;
-    if (state->window != Z_NULL) ZFREE(strm, state->window);
-    ZFREE(strm, strm->state);
-    strm->state = Z_NULL;
-    Tracev((stderr, "inflate: end\n"));
-    return Z_OK;
-}
diff --git a/dlls/wininet/zlib.h b/dlls/wininet/zlib.h
deleted file mode 100644
index e72398c2d9c..00000000000
--- a/dlls/wininet/zlib.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/* zlib.h -- interface of the 'zlib' general purpose compression library
- * version 1.2.11, January 15th, 2017
- *
- * Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
- *
- * This software is provided 'as-is', without any express or implied
- * warranty.  In no event will the authors 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.
- *
- * Jean-loup Gailly        Mark Adler
- * jloup@gzip.org          madler@alumni.caltech.edu
- */
-
-#ifndef ZLIB_H
-#define ZLIB_H
-
-#include "windef.h"
-
-#undef FAR
-#define FAR
-#define z_const const
-
-typedef unsigned char  Byte;  /* 8 bits */
-typedef unsigned int   uInt;  /* 16 bits or more */
-typedef unsigned long  uLong; /* 32 bits or more */
-
-typedef Byte  FAR Bytef;
-typedef void  FAR *voidpf;
-
-typedef char  FAR charf;
-typedef int   FAR intf;
-
-typedef unsigned char  uch;
-typedef uch FAR uchf;
-typedef unsigned short ush;
-typedef ush FAR ushf;
-typedef unsigned long  ulg;
-
-typedef voidpf (*alloc_func)(voidpf opaque, uInt items, uInt size);
-typedef void   (*free_func)(voidpf opaque, voidpf address);
-
-struct internal_state;
-
-typedef struct z_stream_s {
-    z_const Bytef *next_in;     /* next input byte */
-    uInt     avail_in;  /* number of bytes available at next_in */
-    uLong    total_in;  /* total number of input bytes read so far */
-
-    Bytef    *next_out; /* next output byte will go here */
-    uInt     avail_out; /* remaining free space at next_out */
-    uLong    total_out; /* total number of bytes output so far */
-
-    z_const char *msg;  /* last error message, NULL if no error */
-    struct internal_state FAR *state; /* not visible by applications */
-
-    alloc_func zalloc;  /* used to allocate the internal state */
-    free_func  zfree;   /* used to free the internal state */
-    voidpf     opaque;  /* private data object passed to zalloc and zfree */
-
-    int     data_type;  /* best guess about the data type: binary or text
-                           for deflate, or the decoding state for inflate */
-    uLong   adler;      /* Adler-32 or CRC-32 value of the uncompressed data */
-    uLong   reserved;   /* reserved for future use */
-} z_stream;
-
-typedef z_stream FAR *z_streamp;
-
-/*
-     gzip header information passed to and from zlib routines.  See RFC 1952
-  for more details on the meanings of these fields.
-*/
-typedef struct gz_header_s {
-    int     text;       /* true if compressed data believed to be text */
-    uLong   time;       /* modification time */
-    int     xflags;     /* extra flags (not used when writing a gzip file) */
-    int     os;         /* operating system */
-    Bytef   *extra;     /* pointer to extra field or Z_NULL if none */
-    uInt    extra_len;  /* extra field length (valid if extra != Z_NULL) */
-    uInt    extra_max;  /* space at extra (only when reading header) */
-    Bytef   *name;      /* pointer to zero-terminated file name or Z_NULL */
-    uInt    name_max;   /* space at name (only when reading header) */
-    Bytef   *comment;   /* pointer to zero-terminated comment or Z_NULL */
-    uInt    comm_max;   /* space at comment (only when reading header) */
-    int     hcrc;       /* true if there was or will be a header crc */
-    int     done;       /* true when done reading gzip header (not used
-                           when writing a gzip file) */
-} gz_header;
-
-typedef gz_header FAR *gz_headerp;
-
-#define Z_NO_FLUSH      0
-#define Z_PARTIAL_FLUSH 1
-#define Z_SYNC_FLUSH    2
-#define Z_FULL_FLUSH    3
-#define Z_FINISH        4
-#define Z_BLOCK         5
-#define Z_TREES         6
-/* Allowed flush values; see deflate() and inflate() below for details */
-
-#define Z_OK            0
-#define Z_STREAM_END    1
-#define Z_NEED_DICT     2
-#define Z_ERRNO        (-1)
-#define Z_STREAM_ERROR (-2)
-#define Z_DATA_ERROR   (-3)
-#define Z_MEM_ERROR    (-4)
-#define Z_BUF_ERROR    (-5)
-#define Z_VERSION_ERROR (-6)
-/* Return codes for the compression/decompression functions. Negative values
- * are errors, positive values are used for special but normal events.
- */
-
-#define Z_NO_COMPRESSION         0
-#define Z_BEST_SPEED             1
-#define Z_BEST_COMPRESSION       9
-#define Z_DEFAULT_COMPRESSION  (-1)
-/* compression levels */
-
-#define Z_FILTERED            1
-#define Z_HUFFMAN_ONLY        2
-#define Z_RLE                 3
-#define Z_FIXED               4
-#define Z_DEFAULT_STRATEGY    0
-/* compression strategy; see deflateInit2() below for details */
-
-#define Z_BINARY   0
-#define Z_TEXT     1
-#define Z_ASCII    Z_TEXT   /* for compatibility with 1.2.2 and earlier */
-#define Z_UNKNOWN  2
-/* Possible values of the data_type field for deflate() */
-
-#define Z_DEFLATED   8
-/* The deflate compression method (the only one supported in this version) */
-
-#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
-
-#define MAX_WBITS   15 /* 32K LZ77 window */
-#define MAX_MEM_LEVEL 9
-
-extern int inflateInit(z_streamp strm) DECLSPEC_HIDDEN;
-extern int inflateInit2(z_streamp strm, int windowBits) DECLSPEC_HIDDEN;
-extern int inflate(z_streamp strm, int flush) DECLSPEC_HIDDEN;
-extern int inflateEnd(z_streamp strm) DECLSPEC_HIDDEN;
-
-extern int deflateInit(z_streamp strm, int level) DECLSPEC_HIDDEN;
-extern int deflateInit2(z_streamp strm, int level, int method, int windowBits, int memLevel, int strategy) DECLSPEC_HIDDEN;
-extern int deflate(z_streamp strm, int flush) DECLSPEC_HIDDEN;
-extern int deflateEnd(z_streamp strm) DECLSPEC_HIDDEN;
-
-#endif /* ZLIB_H */
-- 
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